make cocoapods happy

WIP

.gitignore

@@ -2,3 +2,8 @@ CoreStoreDemo/CoreStoreDemo.xcodeproj/project.xcworkspace/xcuserdata
 CoreStore.xcodeproj/project.xcworkspace/xcuserdata
 CoreStore.xcodeproj/xcuserdata
 CoreStoreDemo/CoreStoreDemo.xcodeproj/xcuserdata
+Carthage/Build
+CoreStore.xcworkspace/xcuserdata
+.DS_Store
+DerivedData
+*.orig

.gitmodules

@@ -1,3 +1,3 @@
-[submodule "Libraries/GCDKit"]
-	path = Libraries/GCDKit
-	url = git@github.com:JohnEstropia/GCDKit.git
+[submodule "Carthage/Checkouts/GCDKit"]
+	path = Carthage/Checkouts/GCDKit
+	url = https://github.com/JohnEstropia/GCDKit.git

.travis.yml

@@ -0,0 +1,43 @@
+language: objective-c
+osx_image: xcode7.3
+sudo: false
+git:
+  submodules: false
+notifications:
+  email: false
+env:
+  global:
+  - LC_CTYPE=en_US.UTF-8
+  - LANG=en_US.UTF-8
+  matrix:
+    - DESTINATION="OS=9.3,name=iPhone 6s"          SCHEME="CoreStore iOS"     SDK=iphonesimulator9.3  RUN_TESTS="YES" POD_LINT="NO"
+    - DESTINATION="OS=9.0,name=iPhone 6 Plus"      SCHEME="CoreStore iOS"     SDK=iphonesimulator9.3  RUN_TESTS="YES" POD_LINT="NO"
+    - DESTINATION="OS=8.4,name=iPhone 6"           SCHEME="CoreStore iOS"     SDK=iphonesimulator9.3  RUN_TESTS="YES" POD_LINT="NO"
+    - DESTINATION="OS=8.3,name=iPhone 5S"          SCHEME="CoreStore iOS"     SDK=iphonesimulator9.3  RUN_TESTS="YES" POD_LINT="NO"
+    - DESTINATION="OS=8.2,name=iPhone 5"           SCHEME="CoreStore iOS"     SDK=iphonesimulator9.3  RUN_TESTS="YES" POD_LINT="NO"
+    - DESTINATION="OS=8.1,name=iPhone 4S"          SCHEME="CoreStore iOS"     SDK=iphonesimulator9.3  RUN_TESTS="YES" POD_LINT="YES"
+    - DESTINATION="OS=8.1,name=iPhone 4S"          SCHEME="CoreStore iOS7"    SDK=iphonesimulator9.3  RUN_TESTS="YES" POD_LINT="YES"
+    - DESTINATION="arch=x86_64"                    SCHEME="CoreStore OSX"     SDK=macosx10.11         RUN_TESTS="YES" POD_LINT="NO"
+    - DESTINATION="OS=2.2,name=Apple Watch - 42mm" SCHEME="CoreStore watchOS" SDK=watchsimulator2.2   RUN_TESTS="NO"  POD_LINT="NO"
+    - DESTINATION="OS=9.2,name=Apple TV 1080p"     SCHEME="CoreStore tvOS"    SDK=appletvsimulator9.2 RUN_TESTS="YES" POD_LINT="NO"
+before_install:
+  - gem install cocoapods --no-rdoc --no-ri --no-document --quiet
+  - gem install xcpretty --no-rdoc --no-ri --no-document --quiet
+  - curl -OlL "https://github.com/Carthage/Carthage/releases/download/0.11/Carthage.pkg"
+  - sudo installer -pkg "Carthage.pkg" -target /
+  - rm "Carthage.pkg"
+before_script:
+  - carthage update --use-submodules
+script:
+  - set -o pipefail
+  - xcodebuild -version
+  - xcodebuild -showsdks
+  - if [ $RUN_TESTS == "YES" ]; then 
+      xcodebuild -workspace CoreStore.xcworkspace -scheme "$SCHEME" -sdk "$SDK" -destination "$DESTINATION" -configuration Debug ONLY_ACTIVE_ARCH=NO clean test | xcpretty -c;
+      xcodebuild -workspace CoreStore.xcworkspace -scheme "$SCHEME" -sdk "$SDK" -destination "$DESTINATION" -configuration Release ONLY_ACTIVE_ARCH=NO clean test | xcpretty -c;
+    fi
+  - xcodebuild -workspace "CoreStore.xcworkspace" -scheme "CoreStore iOS" -sdk "iphonesimulator9.3" -destination "OS=9.3,name=iPhone 6s" -configuration Debug ONLY_ACTIVE_ARCH=NO clean test | xcpretty -c;
+  - xcodebuild -workspace "CoreStore.xcworkspace" -scheme "CoreStore iOS" -sdk "iphonesimulator9.3" -destination "OS=9.3,name=iPhone 6s" -configuration Release ONLY_ACTIVE_ARCH=NO clean test | xcpretty -c;
+  - if [ $POD_LINT == "YES" ]; then
+      pod lib lint --quick;
+    fi

Cartfile

@@ -0,0 +1 @@
+github "JohnEstropia/GCDKit" == 1.2.5

Cartfile.resolved

@@ -0,0 +1 @@
+github "JohnEstropia/GCDKit" "1.2.4"

CoreStore.podspec

@@ -1,16 +1,23 @@
 Pod::Spec.new do |s|
     s.name = "CoreStore"
-    s.version = "1.0.2"
+    s.version = "2.0.0"
     s.license = "MIT"
-    s.summary = "Simple, elegant, and smart Core Data programming with Swift"
+    s.summary = "Unleashing the real power of Core Data with the elegance and safety of Swift"
     s.homepage = "https://github.com/JohnEstropia/CoreStore"
     s.author = { "John Rommel Estropia" => "rommel.estropia@gmail.com" }
     s.source = { :git => "https://github.com/JohnEstropia/CoreStore.git", :tag => s.version.to_s }
 
     s.ios.deployment_target = "8.0"
+    s.osx.deployment_target = "10.10"
+    s.watchos.deployment_target = "2.0"
+    s.tvos.deployment_target = "9.0"
 
-    s.source_files = "CoreStore", "CoreStore/**/*.{swift}"
-    s.frameworks = "Foundation", "UIKit", "CoreData"
+    s.source_files = "Sources", "Sources/**/*.{swift,h,m}"
+    s.public_header_files = "Sources/**/*.h"
+    s.frameworks = "Foundation", "CoreData"
     s.requires_arc = true
-    s.dependency "GCDKit", "1.1.1"
+    s.pod_target_xcconfig = { 'OTHER_SWIFT_FLAGS' => '-D USE_FRAMEWORKS',
+                              'GCC_PREPROCESSOR_DEFINITIONS' => 'USE_FRAMEWORKS=1' }
+    
+    s.dependency "GCDKit", "1.2.5"
 end

CoreStore.xcodeproj/xcshareddata/xcschemes/CoreStore OSX.xcscheme

@@ -0,0 +1,99 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "0710"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "B52DD1731BE1F8CC00949AFE"
+               BuildableName = "CoreStore.framework"
+               BlueprintName = "CoreStore OSX"
+               ReferencedContainer = "container:CoreStore.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <Testables>
+         <TestableReference
+            skipped = "NO">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "B52DD17C1BE1F8CC00949AFE"
+               BuildableName = "CoreStoreTests.xctest"
+               BlueprintName = "CoreStoreTests OSX"
+               ReferencedContainer = "container:CoreStore.xcodeproj">
+            </BuildableReference>
+         </TestableReference>
+      </Testables>
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "B52DD1731BE1F8CC00949AFE"
+            BuildableName = "CoreStore.framework"
+            BlueprintName = "CoreStore OSX"
+            ReferencedContainer = "container:CoreStore.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "B52DD1731BE1F8CC00949AFE"
+            BuildableName = "CoreStore.framework"
+            BlueprintName = "CoreStore OSX"
+            ReferencedContainer = "container:CoreStore.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "B52DD1731BE1F8CC00949AFE"
+            BuildableName = "CoreStore.framework"
+            BlueprintName = "CoreStore OSX"
+            ReferencedContainer = "container:CoreStore.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>

CoreStore.xcodeproj/xcshareddata/xcschemes/CoreStore iOS.xcscheme

@@ -11,12 +11,13 @@
             buildForRunning = "YES"
             buildForProfiling = "YES"
             buildForArchiving = "YES"
-            buildForAnalyzing = "YES">
+            buildForAnalyzing = "YES"
+            hideIssues = "NO">
             <BuildableReference
                BuildableIdentifier = "primary"
                BlueprintIdentifier = "2F03A52F19C5C6DA005002A5"
                BuildableName = "CoreStore.framework"
-               BlueprintName = "CoreStore"
+               BlueprintName = "CoreStore iOS"
                ReferencedContainer = "container:CoreStore.xcodeproj">
             </BuildableReference>
          </BuildActionEntry>
@@ -25,12 +26,13 @@
             buildForRunning = "NO"
             buildForProfiling = "NO"
             buildForArchiving = "NO"
-            buildForAnalyzing = "NO">
+            buildForAnalyzing = "NO"
+            hideIssues = "NO">
             <BuildableReference
                BuildableIdentifier = "primary"
                BlueprintIdentifier = "2F03A53A19C5C6DA005002A5"
                BuildableName = "CoreStoreTests.xctest"
-               BlueprintName = "CoreStoreTests"
+               BlueprintName = "CoreStoreTests iOS"
                ReferencedContainer = "container:CoreStore.xcodeproj">
             </BuildableReference>
          </BuildActionEntry>
@@ -48,7 +50,7 @@
                BuildableIdentifier = "primary"
                BlueprintIdentifier = "2F03A53A19C5C6DA005002A5"
                BuildableName = "CoreStoreTests.xctest"
-               BlueprintName = "CoreStoreTests"
+               BlueprintName = "CoreStoreTests iOS"
                ReferencedContainer = "container:CoreStore.xcodeproj">
             </BuildableReference>
          </TestableReference>
@@ -58,7 +60,7 @@
             BuildableIdentifier = "primary"
             BlueprintIdentifier = "2F03A52F19C5C6DA005002A5"
             BuildableName = "CoreStore.framework"
-            BlueprintName = "CoreStore"
+            BlueprintName = "CoreStore iOS"
             ReferencedContainer = "container:CoreStore.xcodeproj">
          </BuildableReference>
       </MacroExpansion>
@@ -80,7 +82,7 @@
             BuildableIdentifier = "primary"
             BlueprintIdentifier = "2F03A52F19C5C6DA005002A5"
             BuildableName = "CoreStore.framework"
-            BlueprintName = "CoreStore"
+            BlueprintName = "CoreStore iOS"
             ReferencedContainer = "container:CoreStore.xcodeproj">
          </BuildableReference>
       </MacroExpansion>
@@ -98,7 +100,7 @@
             BuildableIdentifier = "primary"
             BlueprintIdentifier = "2F03A52F19C5C6DA005002A5"
             BuildableName = "CoreStore.framework"
-            BlueprintName = "CoreStore"
+            BlueprintName = "CoreStore iOS"
             ReferencedContainer = "container:CoreStore.xcodeproj">
          </BuildableReference>
       </MacroExpansion>

CoreStore.xcodeproj/xcshareddata/xcschemes/CoreStore iOS7.xcscheme

@@ -0,0 +1,104 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "0700"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "B5D9E2ED1CA2C317007A9D52"
+               BuildableName = "CoreStore_iOS7.framework"
+               BlueprintName = "CoreStore iOS7"
+               ReferencedContainer = "container:CoreStore.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "NO"
+            buildForProfiling = "NO"
+            buildForArchiving = "NO"
+            buildForAnalyzing = "NO">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "2F03A53A19C5C6DA005002A5"
+               BuildableName = "CoreStoreTests.xctest"
+               BlueprintName = "CoreStoreTests iOS"
+               ReferencedContainer = "container:CoreStore.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <Testables>
+         <TestableReference
+            skipped = "NO">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "2F03A53A19C5C6DA005002A5"
+               BuildableName = "CoreStoreTests.xctest"
+               BlueprintName = "CoreStoreTests iOS"
+               ReferencedContainer = "container:CoreStore.xcodeproj">
+            </BuildableReference>
+         </TestableReference>
+      </Testables>
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "2F03A52F19C5C6DA005002A5"
+            BuildableName = "CoreStore.framework"
+            BlueprintName = "CoreStore iOS"
+            ReferencedContainer = "container:CoreStore.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "B5D9E2ED1CA2C317007A9D52"
+            BuildableName = "CoreStore_iOS7.framework"
+            BlueprintName = "CoreStore iOS7"
+            ReferencedContainer = "container:CoreStore.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Release">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>

CoreStore.xcodeproj/xcshareddata/xcschemes/CoreStore tvOS.xcscheme

@@ -0,0 +1,99 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "0720"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "82BA18881C4BBCBA00A0916E"
+               BuildableName = "CoreStore.framework"
+               BlueprintName = "CoreStore tvOS"
+               ReferencedContainer = "container:CoreStore.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <Testables>
+         <TestableReference
+            skipped = "NO">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "82BA18911C4BBCBA00A0916E"
+               BuildableName = "CoreStoreTests.xctest"
+               BlueprintName = "CoreStoreTests tvOS"
+               ReferencedContainer = "container:CoreStore.xcodeproj">
+            </BuildableReference>
+         </TestableReference>
+      </Testables>
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "82BA18881C4BBCBA00A0916E"
+            BuildableName = "CoreStore.framework"
+            BlueprintName = "CoreStore tvOS"
+            ReferencedContainer = "container:CoreStore.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "82BA18881C4BBCBA00A0916E"
+            BuildableName = "CoreStore.framework"
+            BlueprintName = "CoreStore tvOS"
+            ReferencedContainer = "container:CoreStore.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "82BA18881C4BBCBA00A0916E"
+            BuildableName = "CoreStore.framework"
+            BlueprintName = "CoreStore tvOS"
+            ReferencedContainer = "container:CoreStore.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>

CoreStore.xcodeproj/xcshareddata/xcschemes/CoreStore watchOS.xcscheme

@@ -0,0 +1,80 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "0700"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "B563216E1BD65082006C9394"
+               BuildableName = "CoreStore.framework"
+               BlueprintName = "CoreStore watchOS"
+               ReferencedContainer = "container:CoreStore.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <Testables>
+      </Testables>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "B563216E1BD65082006C9394"
+            BuildableName = "CoreStore.framework"
+            BlueprintName = "CoreStore watchOS"
+            ReferencedContainer = "container:CoreStore.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "B563216E1BD65082006C9394"
+            BuildableName = "CoreStore.framework"
+            BlueprintName = "CoreStore watchOS"
+            ReferencedContainer = "container:CoreStore.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>

CoreStore.xcworkspace/contents.xcworkspacedata

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "group:CoreStore.xcodeproj">
+   </FileRef>
+   <FileRef
+      location = "group:CoreStoreDemo/CoreStoreDemo.xcodeproj">
+   </FileRef>
+   <FileRef
+      location = "group:Carthage/Checkouts/GCDKit/GCDKit.xcodeproj">
+   </FileRef>
+</Workspace>

CoreStore.xcworkspace/xcshareddata/CoreStore.xcscmblueprint

@@ -0,0 +1,37 @@
+{
+  "DVTSourceControlWorkspaceBlueprintPrimaryRemoteRepositoryKey" : "4B60F1BCB491FF717C56441AE7783C74F417BE48",
+  "DVTSourceControlWorkspaceBlueprintWorkingCopyRepositoryLocationsKey" : {
+
+  },
+  "DVTSourceControlWorkspaceBlueprintWorkingCopyStatesKey" : {
+    "8B2E522D57154DFA93A06982C36315ECBEA4FA97" : 0,
+    "95438028B10BBB846574013D29F154A00556A9D1" : 0,
+    "4B60F1BCB491FF717C56441AE7783C74F417BE48" : 0
+  },
+  "DVTSourceControlWorkspaceBlueprintIdentifierKey" : "EBFDEFFE-8BA0-441A-862A-1DE28AA5CD21",
+  "DVTSourceControlWorkspaceBlueprintWorkingCopyPathsKey" : {
+    "8B2E522D57154DFA93A06982C36315ECBEA4FA97" : "CoreStore\/Carthage\/Checkouts\/GCDKit\/",
+    "95438028B10BBB846574013D29F154A00556A9D1" : "CoreStore\/Carthage\/Checkouts\/Nimble\/",
+    "4B60F1BCB491FF717C56441AE7783C74F417BE48" : "CoreStore\/"
+  },
+  "DVTSourceControlWorkspaceBlueprintNameKey" : "CoreStore",
+  "DVTSourceControlWorkspaceBlueprintVersion" : 204,
+  "DVTSourceControlWorkspaceBlueprintRelativePathToProjectKey" : "CoreStore.xcworkspace",
+  "DVTSourceControlWorkspaceBlueprintRemoteRepositoriesKey" : [
+    {
+      "DVTSourceControlWorkspaceBlueprintRemoteRepositoryURLKey" : "https:\/\/github.com\/JohnEstropia\/CoreStore",
+      "DVTSourceControlWorkspaceBlueprintRemoteRepositorySystemKey" : "com.apple.dt.Xcode.sourcecontrol.Git",
+      "DVTSourceControlWorkspaceBlueprintRemoteRepositoryIdentifierKey" : "4B60F1BCB491FF717C56441AE7783C74F417BE48"
+    },
+    {
+      "DVTSourceControlWorkspaceBlueprintRemoteRepositoryURLKey" : "https:\/\/github.com\/JohnEstropia\/GCDKit.git",
+      "DVTSourceControlWorkspaceBlueprintRemoteRepositorySystemKey" : "com.apple.dt.Xcode.sourcecontrol.Git",
+      "DVTSourceControlWorkspaceBlueprintRemoteRepositoryIdentifierKey" : "8B2E522D57154DFA93A06982C36315ECBEA4FA97"
+    },
+    {
+      "DVTSourceControlWorkspaceBlueprintRemoteRepositoryURLKey" : "https:\/\/github.com\/Quick\/Nimble.git",
+      "DVTSourceControlWorkspaceBlueprintRemoteRepositorySystemKey" : "com.apple.dt.Xcode.sourcecontrol.Git",
+      "DVTSourceControlWorkspaceBlueprintRemoteRepositoryIdentifierKey" : "95438028B10BBB846574013D29F154A00556A9D1"
+    }
+  ]
+}

CoreStore/Fetching and Querying/BaseDataTransaction+Querying.swift

@@ -1,319 +0,0 @@
-//
-//  BaseDataTransaction+Querying.swift
-//  CoreStore
-//
-//  Copyright (c) 2015 John Rommel Estropia
-//
-//  Permission is hereby granted, free of charge, to any person obtaining a copy
-//  of this software and associated documentation files (the "Software"), to deal
-//  in the Software without restriction, including without limitation the rights
-//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-//  copies of the Software, and to permit persons to whom the Software is
-//  furnished to do so, subject to the following conditions:
-//
-//  The above copyright notice and this permission notice shall be included in all
-//  copies or substantial portions of the Software.
-//
-//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-//  SOFTWARE.
-//
-
-import Foundation
-import CoreData
-
-
-// MARK: - DataTransaction
-
-public extension BaseDataTransaction {
-    
-    // MARK: Public
-    
-    /**
-    Fetches the first `NSManagedObject` instance that satisfies the specified `FetchClause`s. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter fetchClauses: a series of `FetchClause` instances for the fetch request. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: the first `NSManagedObject` instance that satisfies the specified `FetchClause`s
-    */
-    public func fetchOne<T: NSManagedObject>(from: From<T>, _ fetchClauses: FetchClause...) -> T? {
-        
-        CoreStore.assert(
-            self.transactionQueue.isCurrentExecutionContext(),
-            "Attempted to fetch from a \(typeName(self)) outside its designated queue."
-        )
-        
-        return self.context.fetchOne(from, fetchClauses)
-    }
-    
-    /**
-    Fetches the first `NSManagedObject` instance that satisfies the specified `FetchClause`s. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter fetchClauses: a series of `FetchClause` instances for the fetch request. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: the first `NSManagedObject` instance that satisfies the specified `FetchClause`s
-    */
-    public func fetchOne<T: NSManagedObject>(from: From<T>, _ fetchClauses: [FetchClause]) -> T? {
-        
-        CoreStore.assert(
-            self.transactionQueue.isCurrentExecutionContext(),
-            "Attempted to fetch from a \(typeName(self)) outside its designated queue."
-        )
-        
-        return self.context.fetchOne(from, fetchClauses)
-    }
-    
-    /**
-    Fetches all `NSManagedObject` instances that satisfy the specified `FetchClause`s. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter fetchClauses: a series of `FetchClause` instances for the fetch request. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: all `NSManagedObject` instances that satisfy the specified `FetchClause`s
-    */
-    public func fetchAll<T: NSManagedObject>(from: From<T>, _ fetchClauses: FetchClause...) -> [T]? {
-        
-        CoreStore.assert(
-            self.transactionQueue.isCurrentExecutionContext(),
-            "Attempted to fetch from a \(typeName(self)) outside its designated queue."
-        )
-        
-        return self.context.fetchAll(from, fetchClauses)
-    }
-    
-    /**
-    Fetches all `NSManagedObject` instances that satisfy the specified `FetchClause`s. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter fetchClauses: a series of `FetchClause` instances for the fetch request. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: all `NSManagedObject` instances that satisfy the specified `FetchClause`s
-    */
-    public func fetchAll<T: NSManagedObject>(from: From<T>, _ fetchClauses: [FetchClause]) -> [T]? {
-        
-        CoreStore.assert(
-            self.transactionQueue.isCurrentExecutionContext(),
-            "Attempted to fetch from a \(typeName(self)) outside its designated queue."
-        )
-        
-        return self.context.fetchAll(from, fetchClauses)
-    }
-    
-    /**
-    Fetches the number of `NSManagedObject`s that satisfy the specified `FetchClause`s. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter fetchClauses: a series of `FetchClause` instances for the fetch request. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: the number `NSManagedObject`s that satisfy the specified `FetchClause`s
-    */
-    public func fetchCount<T: NSManagedObject>(from: From<T>, _ fetchClauses: FetchClause...) -> Int? {
-        
-        CoreStore.assert(
-            self.transactionQueue.isCurrentExecutionContext(),
-            "Attempted to fetch from a \(typeName(self)) outside its designated queue."
-        )
-        
-        return self.context.fetchCount(from, fetchClauses)
-    }
-    
-    /**
-    Fetches the number of `NSManagedObject`s that satisfy the specified `FetchClause`s. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter fetchClauses: a series of `FetchClause` instances for the fetch request. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: the number `NSManagedObject`s that satisfy the specified `FetchClause`s
-    */
-    public func fetchCount<T: NSManagedObject>(from: From<T>, _ fetchClauses: [FetchClause]) -> Int? {
-        
-        CoreStore.assert(
-            self.transactionQueue.isCurrentExecutionContext(),
-            "Attempted to fetch from a \(typeName(self)) outside its designated queue."
-        )
-        
-        return self.context.fetchCount(from, fetchClauses)
-    }
-    
-    /**
-    Fetches the `NSManagedObjectID` for the first `NSManagedObject` that satisfies the specified `FetchClause`s. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter fetchClauses: a series of `FetchClause` instances for the fetch request. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: the `NSManagedObjectID` for the first `NSManagedObject` that satisfies the specified `FetchClause`s
-    */
-    public func fetchObjectID<T: NSManagedObject>(from: From<T>, _ fetchClauses: FetchClause...) -> NSManagedObjectID? {
-        
-        CoreStore.assert(
-            self.transactionQueue.isCurrentExecutionContext(),
-            "Attempted to fetch from a \(typeName(self)) outside its designated queue."
-        )
-        
-        return self.context.fetchObjectID(from, fetchClauses)
-    }
-    
-    /**
-    Fetches the `NSManagedObjectID` for the first `NSManagedObject` that satisfies the specified `FetchClause`s. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter fetchClauses: a series of `FetchClause` instances for the fetch request. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: the `NSManagedObjectID` for the first `NSManagedObject` that satisfies the specified `FetchClause`s
-    */
-    public func fetchObjectID<T: NSManagedObject>(from: From<T>, _ fetchClauses: [FetchClause]) -> NSManagedObjectID? {
-        
-        CoreStore.assert(
-            self.transactionQueue.isCurrentExecutionContext(),
-            "Attempted to fetch from a \(typeName(self)) outside its designated queue."
-        )
-        
-        return self.context.fetchObjectID(from, fetchClauses)
-    }
-    
-    /**
-    Fetches the `NSManagedObjectID` for all `NSManagedObject`s that satisfy the specified `FetchClause`s. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter fetchClauses: a series of `FetchClause` instances for the fetch request. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: the `NSManagedObjectID` for all `NSManagedObject`s that satisfy the specified `FetchClause`s
-    */
-    public func fetchObjectIDs<T: NSManagedObject>(from: From<T>, _ fetchClauses: FetchClause...) -> [NSManagedObjectID]? {
-        
-        CoreStore.assert(
-            self.transactionQueue.isCurrentExecutionContext(),
-            "Attempted to fetch from a \(typeName(self)) outside its designated queue."
-        )
-        
-        return self.context.fetchObjectIDs(from, fetchClauses)
-    }
-    
-    /**
-    Fetches the `NSManagedObjectID` for all `NSManagedObject`s that satisfy the specified `FetchClause`s. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter fetchClauses: a series of `FetchClause` instances for the fetch request. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: the `NSManagedObjectID` for all `NSManagedObject`s that satisfy the specified `FetchClause`s
-    */
-    public func fetchObjectIDs<T: NSManagedObject>(from: From<T>, _ fetchClauses: [FetchClause]) -> [NSManagedObjectID]? {
-        
-        CoreStore.assert(
-            self.transactionQueue.isCurrentExecutionContext(),
-            "Attempted to fetch from a \(typeName(self)) outside its designated queue."
-        )
-        
-        return self.context.fetchObjectIDs(from, fetchClauses)
-    }
-    
-    /**
-    Deletes all `NSManagedObject`s that satisfy the specified `DeleteClause`s. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter deleteClauses: a series of `DeleteClause` instances for the delete request. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: the number of `NSManagedObject`s deleted
-    */
-    public func deleteAll<T: NSManagedObject>(from: From<T>, _ deleteClauses: DeleteClause...) -> Int? {
-        
-        CoreStore.assert(
-            self.transactionQueue.isCurrentExecutionContext(),
-            "Attempted to delete from a \(typeName(self)) outside its designated queue."
-        )
-        
-        return self.context.deleteAll(from, deleteClauses)
-    }
-    
-    /**
-    Deletes all `NSManagedObject`s that satisfy the specified `DeleteClause`s. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter deleteClauses: a series of `DeleteClause` instances for the delete request. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: the number of `NSManagedObject`s deleted
-    */
-    public func deleteAll<T: NSManagedObject>(from: From<T>, _ deleteClauses: [DeleteClause]) -> Int? {
-        
-        CoreStore.assert(
-            self.transactionQueue.isCurrentExecutionContext(),
-            "Attempted to delete from a \(typeName(self)) outside its designated queue."
-        )
-        
-        return self.context.deleteAll(from, deleteClauses)
-    }
-    
-    /**
-    Queries aggregate values as specified by the `QueryClause`s. Requires at least a `Select` clause, and optional `Where`, `OrderBy`, `GroupBy`, and `Tweak` clauses.
-    
-    A "query" differs from a "fetch" in that it only retrieves values already stored in the persistent store. As such, values from unsaved transactions or contexts will not be incorporated in the query result.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter selectClause: a `Select<U>` clause indicating the properties to fetch, and with the generic type indicating the return type.
-    - parameter queryClauses: a series of `QueryClause` instances for the query request. Accepts `Where`, `OrderBy`, `GroupBy`, and `Tweak` clauses.
-    - returns: the result of the the query. The type of the return value is specified by the generic type of the `Select<U>` parameter.
-    */
-    public func queryValue<T: NSManagedObject, U: SelectValueResultType>(from: From<T>, _ selectClause: Select<U>, _ queryClauses: QueryClause...) -> U? {
-        
-        CoreStore.assert(
-            self.transactionQueue.isCurrentExecutionContext(),
-            "Attempted to query from a \(typeName(self)) outside its designated queue."
-        )
-        
-        return self.context.queryValue(from, selectClause, queryClauses)
-    }
-    
-    /**
-    Queries aggregate values or aggregates as specified by the `QueryClause`s. Requires at least a `Select` clause, and optional `Where`, `OrderBy`, `GroupBy`, and `Tweak` clauses.
-    
-    A "query" differs from a "fetch" in that it only retrieves values already stored in the persistent store. As such, values from unsaved transactions or contexts will not be incorporated in the query result.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter selectClause: a `Select<U>` clause indicating the properties to fetch, and with the generic type indicating the return type.
-    - parameter queryClauses: a series of `QueryClause` instances for the query request. Accepts `Where`, `OrderBy`, `GroupBy`, and `Tweak` clauses.
-    - returns: the result of the the query. The type of the return value is specified by the generic type of the `Select<U>` parameter.
-    */
-    public func queryValue<T: NSManagedObject, U: SelectValueResultType>(from: From<T>, _ selectClause: Select<U>, _ queryClauses: [QueryClause]) -> U? {
-        
-        CoreStore.assert(
-            self.transactionQueue.isCurrentExecutionContext(),
-            "Attempted to query from a \(typeName(self)) outside its designated queue."
-        )
-        
-        return self.context.queryValue(from, selectClause, queryClauses)
-    }
-    
-    /**
-    Queries a dictionary of attribute values as specified by the `QueryClause`s. Requires at least a `Select` clause, and optional `Where`, `OrderBy`, `GroupBy`, and `Tweak` clauses.
-    
-    A "query" differs from a "fetch" in that it only retrieves values already stored in the persistent store. As such, values from unsaved transactions or contexts will not be incorporated in the query result.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter selectClause: a `Select<U>` clause indicating the properties to fetch, and with the generic type indicating the return type.
-    - parameter queryClauses: a series of `QueryClause` instances for the query request. Accepts `Where`, `OrderBy`, `GroupBy`, and `Tweak` clauses.
-    - returns: the result of the the query. The type of the return value is specified by the generic type of the `Select<U>` parameter.
-    */
-    public func queryAttributes<T: NSManagedObject>(from: From<T>, _ selectClause: Select<NSDictionary>, _ queryClauses: QueryClause...) -> [[NSString: AnyObject]]? {
-        
-        CoreStore.assert(
-            self.transactionQueue.isCurrentExecutionContext(),
-            "Attempted to query from a \(typeName(self)) outside its designated queue."
-        )
-        
-        return self.context.queryAttributes(from, selectClause, queryClauses)
-    }
-    
-    /**
-    Queries a dictionary of attribute values as specified by the `QueryClause`s. Requires at least a `Select` clause, and optional `Where`, `OrderBy`, `GroupBy`, and `Tweak` clauses.
-    
-    A "query" differs from a "fetch" in that it only retrieves values already stored in the persistent store. As such, values from unsaved transactions or contexts will not be incorporated in the query result.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter selectClause: a `Select<U>` clause indicating the properties to fetch, and with the generic type indicating the return type.
-    - parameter queryClauses: a series of `QueryClause` instances for the query request. Accepts `Where`, `OrderBy`, `GroupBy`, and `Tweak` clauses.
-    - returns: the result of the the query. The type of the return value is specified by the generic type of the `Select<U>` parameter.
-    */
-    public func queryAttributes<T: NSManagedObject>(from: From<T>, _ selectClause: Select<NSDictionary>, _ queryClauses: [QueryClause]) -> [[NSString: AnyObject]]? {
-        
-        CoreStore.assert(
-            self.transactionQueue.isCurrentExecutionContext(),
-            "Attempted to query from a \(typeName(self)) outside its designated queue."
-        )
-        
-        return self.context.queryAttributes(from, selectClause, queryClauses)
-    }
-}

CoreStore/Fetching and Querying/Concrete Clauses/From.swift

@@ -1,201 +0,0 @@
-//
-//  From.swift
-//  CoreStore
-//
-//  Copyright (c) 2015 John Rommel Estropia
-//
-//  Permission is hereby granted, free of charge, to any person obtaining a copy
-//  of this software and associated documentation files (the "Software"), to deal
-//  in the Software without restriction, including without limitation the rights
-//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-//  copies of the Software, and to permit persons to whom the Software is
-//  furnished to do so, subject to the following conditions:
-//
-//  The above copyright notice and this permission notice shall be included in all
-//  copies or substantial portions of the Software.
-//
-//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-//  SOFTWARE.
-//
-
-import Foundation
-import CoreData
-
-
-// MARK: - From
-
-/**
-A `Form` clause binds the `NSManagedObject` entity type to the generics type system.
-*/
-public struct From<T: NSManagedObject> {
-    
-    // MARK: Public
-    
-    public init(){
-        
-        self.entityClass = T.self
-        self.findPersistentStores = { _ in nil }
-    }
-    
-    public init(_ entity: T.Type) {
-        
-        self.entityClass = entity
-        self.findPersistentStores = { _ in nil }
-    }
-    
-    public init(_ entityClass: AnyClass) {
-        
-        self.entityClass = entityClass
-        self.findPersistentStores = { _ in nil }
-    }
-    
-    public init(_ configurations: String?...) {
-        
-        self.init(entityClass: T.self, configurations: configurations)
-    }
-    
-    public init(_ configurations: [String?]) {
-        
-        self.init(entityClass: T.self, configurations: configurations)
-    }
-    
-    public init(_ entity: T.Type, _ configurations: String?...) {
-        
-        self.init(entityClass: entity, configurations: configurations)
-    }
-    
-    public init(_ entity: T.Type, _ configurations: [String?]) {
-        
-        self.init(entityClass: entity, configurations: configurations)
-    }
-    
-    public init(_ entityClass: AnyClass, _ configurations: String?...) {
-        
-        self.init(entityClass: entityClass, configurations: configurations)
-    }
-    
-    public init(_ entityClass: AnyClass, _ configurations: [String?]) {
-        
-        self.init(entityClass: entityClass, configurations: configurations)
-    }
-    
-    public init(_ storeURLs: NSURL...) {
-        
-        self.init(entityClass: T.self, storeURLs: storeURLs)
-    }
-    
-    public init(_ storeURLs: [NSURL]) {
-        
-        self.init(entityClass: T.self, storeURLs: storeURLs)
-    }
-    
-    public init(_ entity: T.Type, _ storeURLs: NSURL...) {
-        
-        self.init(entityClass: entity, storeURLs: storeURLs)
-    }
-    
-    public init(_ entity: T.Type, _ storeURLs: [NSURL]) {
-        
-        self.init(entityClass: entity, storeURLs: storeURLs)
-    }
-    
-    public init(_ entityClass: AnyClass, _ storeURLs: NSURL...) {
-        
-        self.init(entityClass: entityClass, storeURLs: storeURLs)
-    }
-    
-    public init(_ entityClass: AnyClass, _ storeURLs: [NSURL]) {
-        
-        self.init(entityClass: entityClass, storeURLs: storeURLs)
-    }
-    
-    public init(_ persistentStores: NSPersistentStore...) {
-        
-        self.init(entityClass: T.self, persistentStores: persistentStores)
-    }
-    
-    public init(_ persistentStores: [NSPersistentStore]) {
-        
-        self.init(entityClass: T.self, persistentStores: persistentStores)
-    }
-    
-    public init(_ entity: T.Type, _ persistentStores: NSPersistentStore...) {
-        
-        self.init(entityClass: entity, persistentStores: persistentStores)
-    }
-    
-    public init(_ entity: T.Type, _ persistentStores: [NSPersistentStore]) {
-        
-        self.init(entityClass: entity, persistentStores: persistentStores)
-    }
-    
-    public init(_ entityClass: AnyClass, _ persistentStores: NSPersistentStore...) {
-        
-        self.init(entityClass: entityClass, persistentStores: persistentStores)
-    }
-    
-    public init(_ entityClass: AnyClass, _ persistentStores: [NSPersistentStore]) {
-        
-        self.init(entityClass: entityClass, persistentStores: persistentStores)
-    }
-    
-    
-    // MARK: Internal
-    
-    internal func applyToFetchRequest(fetchRequest: NSFetchRequest, context: NSManagedObjectContext) {
-        
-        fetchRequest.entity = context.entityDescriptionForEntityClass(self.entityClass)
-        fetchRequest.affectedStores = self.findPersistentStores(context: context)
-    }
-    
-    
-    // MARK: Private
-    
-    private let entityClass: AnyClass
-    
-    private let findPersistentStores: (context: NSManagedObjectContext) -> [NSPersistentStore]?
-    
-    private init(entityClass: AnyClass, configurations: [String?]) {
-        
-        let configurationsSet = Set(configurations.map { $0 ?? Into.defaultConfigurationName })
-        self.entityClass = entityClass
-        self.findPersistentStores = { (context: NSManagedObjectContext) -> [NSPersistentStore]? in
-            
-            return context.parentStack?.persistentStoresForEntityClass(entityClass)?.filter {
-                
-                return configurationsSet.contains($0.configurationName)
-            }
-        }
-    }
-    
-    private init(entityClass: AnyClass, storeURLs: [NSURL]) {
-        
-        let storeURLsSet = Set(storeURLs)
-        self.entityClass = entityClass
-        self.findPersistentStores = { (context: NSManagedObjectContext) -> [NSPersistentStore]? in
-            
-            return context.parentStack?.persistentStoresForEntityClass(entityClass)?.filter {
-                
-                return $0.URL != nil && storeURLsSet.contains($0.URL!)
-            }
-        }
-    }
-    
-    private init(entityClass: AnyClass, persistentStores: [NSPersistentStore]) {
-        
-        let persistentStores = Set(persistentStores)
-        self.entityClass = entityClass
-        self.findPersistentStores = { (context: NSManagedObjectContext) -> [NSPersistentStore]? in
-            
-            return context.parentStack?.persistentStoresForEntityClass(entityClass)?.filter {
-                
-                return persistentStores.contains($0)
-            }
-        }
-    }
-}

CoreStore/Fetching and Querying/CoreStore+Querying.swift

@@ -1,213 +0,0 @@
-//
-//  CoreStore+Querying.swift
-//  CoreStore
-//
-//  Copyright (c) 2015 John Rommel Estropia
-//
-//  Permission is hereby granted, free of charge, to any person obtaining a copy
-//  of this software and associated documentation files (the "Software"), to deal
-//  in the Software without restriction, including without limitation the rights
-//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-//  copies of the Software, and to permit persons to whom the Software is
-//  furnished to do so, subject to the following conditions:
-//
-//  The above copyright notice and this permission notice shall be included in all
-//  copies or substantial portions of the Software.
-//
-//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-//  SOFTWARE.
-//
-
-import Foundation
-
-// MARK: - CoreStore
-
-public extension CoreStore {
-    
-    // MARK: Public
-    
-    /**
-    Using the `defaultStack`, fetches the first `NSManagedObject` instance that satisfies the specified `FetchClause`s. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter fetchClauses: a series of `FetchClause` instances for the fetch request. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: the first `NSManagedObject` instance that satisfies the specified `FetchClause`s
-    */
-    public static func fetchOne<T: NSManagedObject>(from: From<T>, _ fetchClauses: FetchClause...) -> T? {
-        
-        return self.defaultStack.fetchOne(from, fetchClauses)
-    }
-    
-    /**
-    Using the `defaultStack`, fetches the first `NSManagedObject` instance that satisfies the specified `FetchClause`s. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter fetchClauses: a series of `FetchClause` instances for the fetch request. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: the first `NSManagedObject` instance that satisfies the specified `FetchClause`s
-    */
-    public static func fetchOne<T: NSManagedObject>(from: From<T>, _ fetchClauses: [FetchClause]) -> T? {
-        
-        return self.defaultStack.fetchOne(from, fetchClauses)
-    }
-    
-    /**
-    Using the `defaultStack`, fetches all `NSManagedObject` instances that satisfy the specified `FetchClause`s. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter fetchClauses: a series of `FetchClause` instances for the fetch request. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: all `NSManagedObject` instances that satisfy the specified `FetchClause`s
-    */
-    public static func fetchAll<T: NSManagedObject>(from: From<T>, _ fetchClauses: FetchClause...) -> [T]? {
-        
-        return self.defaultStack.fetchAll(from, fetchClauses)
-    }
-    
-    /**
-    Using the `defaultStack`, fetches all `NSManagedObject` instances that satisfy the specified `FetchClause`s. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter fetchClauses: a series of `FetchClause` instances for the fetch request. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: all `NSManagedObject` instances that satisfy the specified `FetchClause`s
-    */
-    public static func fetchAll<T: NSManagedObject>(from: From<T>, _ fetchClauses: [FetchClause]) -> [T]? {
-        
-        return self.defaultStack.fetchAll(from, fetchClauses)
-    }
-    
-    /**
-    Using the `defaultStack`, fetches the number of `NSManagedObject`s that satisfy the specified `FetchClause`s. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter fetchClauses: a series of `FetchClause` instances for the fetch request. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: the number `NSManagedObject`s that satisfy the specified `FetchClause`s
-    */
-    public static func fetchCount<T: NSManagedObject>(from: From<T>, _ fetchClauses: FetchClause...) -> Int? {
-        
-        return self.defaultStack.fetchCount(from, fetchClauses)
-    }
-    
-    /**
-    Using the `defaultStack`, fetches the number of `NSManagedObject`s that satisfy the specified `FetchClause`s. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter fetchClauses: a series of `FetchClause` instances for the fetch request. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: the number `NSManagedObject`s that satisfy the specified `FetchClause`s
-    */
-    public static func fetchCount<T: NSManagedObject>(from: From<T>, _ fetchClauses: [FetchClause]) -> Int? {
-        
-        return self.defaultStack.fetchCount(from, fetchClauses)
-    }
-    
-    /**
-    Using the `defaultStack`, fetches the `NSManagedObjectID` for the first `NSManagedObject` that satisfies the specified `FetchClause`s. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter fetchClauses: a series of `FetchClause` instances for the fetch request. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: the `NSManagedObjectID` for the first `NSManagedObject` that satisfies the specified `FetchClause`s
-    */
-    public static func fetchObjectID<T: NSManagedObject>(from: From<T>, _ fetchClauses: FetchClause...) -> NSManagedObjectID? {
-        
-        return self.defaultStack.fetchObjectID(from, fetchClauses)
-    }
-    
-    /**
-    Using the `defaultStack`, fetches the `NSManagedObjectID` for the first `NSManagedObject` that satisfies the specified `FetchClause`s. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter fetchClauses: a series of `FetchClause` instances for the fetch request. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: the `NSManagedObjectID` for the first `NSManagedObject` that satisfies the specified `FetchClause`s
-    */
-    public static func fetchObjectID<T: NSManagedObject>(from: From<T>, _ fetchClauses: [FetchClause]) -> NSManagedObjectID? {
-        
-        return self.defaultStack.fetchObjectID(from, fetchClauses)
-    }
-    
-    /**
-    Using the `defaultStack`, fetches the `NSManagedObjectID` for all `NSManagedObject`s that satisfy the specified `FetchClause`s. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter fetchClauses: a series of `FetchClause` instances for the fetch request. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: the `NSManagedObjectID` for all `NSManagedObject`s that satisfy the specified `FetchClause`s
-    */
-    public static func fetchObjectIDs<T: NSManagedObject>(from: From<T>, _ fetchClauses: FetchClause...) -> [NSManagedObjectID]? {
-        
-        return self.defaultStack.fetchObjectIDs(from, fetchClauses)
-    }
-    
-    /**
-    Using the `defaultStack`, fetches the `NSManagedObjectID` for all `NSManagedObject`s that satisfy the specified `FetchClause`s. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter fetchClauses: a series of `FetchClause` instances for the fetch request. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: the `NSManagedObjectID` for all `NSManagedObject`s that satisfy the specified `FetchClause`s
-    */
-    public static func fetchObjectIDs<T: NSManagedObject>(from: From<T>, _ fetchClauses: [FetchClause]) -> [NSManagedObjectID]? {
-        
-        return self.defaultStack.fetchObjectIDs(from, fetchClauses)
-    }
-    
-    /**
-    Using the `defaultStack`, queries aggregate values as specified by the `QueryClause`s. Requires at least a `Select` clause, and optional `Where`, `OrderBy`, `GroupBy`, and `Tweak` clauses.
-    
-    A "query" differs from a "fetch" in that it only retrieves values already stored in the persistent store. As such, values from unsaved transactions or contexts will not be incorporated in the query result.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter selectClause: a `Select<U>` clause indicating the properties to fetch, and with the generic type indicating the return type.
-    - parameter queryClauses: a series of `QueryClause` instances for the query request. Accepts `Where`, `OrderBy`, `GroupBy`, and `Tweak` clauses.
-    - returns: the result of the the query. The type of the return value is specified by the generic type of the `Select<U>` parameter.
-    */
-    public static func queryValue<T: NSManagedObject, U: SelectValueResultType>(from: From<T>, _ selectClause: Select<U>, _ queryClauses: QueryClause...) -> U? {
-        
-        return self.defaultStack.queryValue(from, selectClause, queryClauses)
-    }
-    
-    /**
-    Using the `defaultStack`, queries aggregate values as specified by the `QueryClause`s. Requires at least a `Select` clause, and optional `Where`, `OrderBy`, `GroupBy`, and `Tweak` clauses.
-    
-    A "query" differs from a "fetch" in that it only retrieves values already stored in the persistent store. As such, values from unsaved transactions or contexts will not be incorporated in the query result.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter selectClause: a `Select<U>` clause indicating the properties to fetch, and with the generic type indicating the return type.
-    - parameter queryClauses: a series of `QueryClause` instances for the query request. Accepts `Where`, `OrderBy`, `GroupBy`, and `Tweak` clauses.
-    - returns: the result of the the query. The type of the return value is specified by the generic type of the `Select<U>` parameter.
-    */
-    public static func queryValue<T: NSManagedObject, U: SelectValueResultType>(from: From<T>, _ selectClause: Select<U>, _ queryClauses: [QueryClause]) -> U? {
-        
-        return self.defaultStack.queryValue(from, selectClause, queryClauses)
-    }
-    
-    /**
-    Using the `defaultStack`, queries a dictionary of attribtue values as specified by the `QueryClause`s. Requires at least a `Select` clause, and optional `Where`, `OrderBy`, `GroupBy`, and `Tweak` clauses.
-    
-    A "query" differs from a "fetch" in that it only retrieves values already stored in the persistent store. As such, values from unsaved transactions or contexts will not be incorporated in the query result.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter selectClause: a `Select<U>` clause indicating the properties to fetch, and with the generic type indicating the return type.
-    - parameter queryClauses: a series of `QueryClause` instances for the query request. Accepts `Where`, `OrderBy`, `GroupBy`, and `Tweak` clauses.
-    - returns: the result of the the query. The type of the return value is specified by the generic type of the `Select<U>` parameter.
-    */
-    public static func queryAttributes<T: NSManagedObject>(from: From<T>, _ selectClause: Select<NSDictionary>, _ queryClauses: QueryClause...) -> [[NSString: AnyObject]]? {
-        
-        return self.defaultStack.queryAttributes(from, selectClause, queryClauses)
-    }
-    
-    /**
-    Using the `defaultStack`, queries a dictionary of attribute values as specified by the `QueryClause`s. Requires at least a `Select` clause, and optional `Where`, `OrderBy`, `GroupBy`, and `Tweak` clauses.
-    
-    A "query" differs from a "fetch" in that it only retrieves values already stored in the persistent store. As such, values from unsaved transactions or contexts will not be incorporated in the query result.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter selectClause: a `Select<U>` clause indicating the properties to fetch, and with the generic type indicating the return type.
-    - parameter queryClauses: a series of `QueryClause` instances for the query request. Accepts `Where`, `OrderBy`, `GroupBy`, and `Tweak` clauses.
-    - returns: the result of the the query. The type of the return value is specified by the generic type of the `Select<U>` parameter.
-    */
-    public static func queryAttributes<T: NSManagedObject>(from: From<T>, _ selectClause: Select<NSDictionary>, _ queryClauses: [QueryClause]) -> [[NSString: AnyObject]]? {
-        
-        return self.defaultStack.queryAttributes(from, selectClause, queryClauses)
-    }
-}

CoreStore/Fetching and Querying/DataStack+Querying.swift

@@ -1,286 +0,0 @@
-//
-//  DataStack+Querying.swift
-//  CoreStore
-//
-//  Copyright (c) 2015 John Rommel Estropia
-//
-//  Permission is hereby granted, free of charge, to any person obtaining a copy
-//  of this software and associated documentation files (the "Software"), to deal
-//  in the Software without restriction, including without limitation the rights
-//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-//  copies of the Software, and to permit persons to whom the Software is
-//  furnished to do so, subject to the following conditions:
-//
-//  The above copyright notice and this permission notice shall be included in all
-//  copies or substantial portions of the Software.
-//
-//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-//  SOFTWARE.
-//
-
-import Foundation
-import CoreData
-import GCDKit
-
-
-// MARK: - DataStack
-
-public extension DataStack {
-    
-    // MARK: Public
-    
-    /**
-    Fetches the first `NSManagedObject` instance that satisfies the specified `FetchClause`s. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter fetchClauses: a series of `FetchClause` instances for the fetch request. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: the first `NSManagedObject` instance that satisfies the specified `FetchClause`s
-    */
-    public func fetchOne<T: NSManagedObject>(from: From<T>, _ fetchClauses: FetchClause...) -> T? {
-        
-        CoreStore.assert(
-            NSThread.isMainThread(),
-            "Attempted to fetch from a \(typeName(self)) outside the main thread."
-        )
-        
-        return self.mainContext.fetchOne(from, fetchClauses)
-    }
-    
-    /**
-    Fetches the first `NSManagedObject` instance that satisfies the specified `FetchClause`s. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter fetchClauses: a series of `FetchClause` instances for the fetch request. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: the first `NSManagedObject` instance that satisfies the specified `FetchClause`s
-    */
-    public func fetchOne<T: NSManagedObject>(from: From<T>, _ fetchClauses: [FetchClause]) -> T? {
-        
-        CoreStore.assert(
-            NSThread.isMainThread(),
-            "Attempted to fetch from a \(typeName(self)) outside the main thread."
-        )
-        
-        return self.mainContext.fetchOne(from, fetchClauses)
-    }
-    
-    /**
-    Fetches all `NSManagedObject` instances that satisfy the specified `FetchClause`s. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter fetchClauses: a series of `FetchClause` instances for the fetch request. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: all `NSManagedObject` instances that satisfy the specified `FetchClause`s
-    */
-    public func fetchAll<T: NSManagedObject>(from: From<T>, _ fetchClauses: FetchClause...) -> [T]? {
-        
-        CoreStore.assert(
-            NSThread.isMainThread(),
-            "Attempted to fetch from a \(typeName(self)) outside the main thread."
-        )
-        
-        return self.mainContext.fetchAll(from, fetchClauses)
-    }
-    
-    /**
-    Fetches all `NSManagedObject` instances that satisfy the specified `FetchClause`s. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter fetchClauses: a series of `FetchClause` instances for the fetch request. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: all `NSManagedObject` instances that satisfy the specified `FetchClause`s
-    */
-    public func fetchAll<T: NSManagedObject>(from: From<T>, _ fetchClauses: [FetchClause]) -> [T]? {
-        
-        CoreStore.assert(
-            NSThread.isMainThread(),
-            "Attempted to fetch from a \(typeName(self)) outside the main thread."
-        )
-        
-        return self.mainContext.fetchAll(from, fetchClauses)
-    }
-    
-    /**
-    Fetches the number of `NSManagedObject`s that satisfy the specified `FetchClause`s. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter fetchClauses: a series of `FetchClause` instances for the fetch request. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: the number `NSManagedObject`s that satisfy the specified `FetchClause`s
-    */
-    public func fetchCount<T: NSManagedObject>(from: From<T>, _ fetchClauses: FetchClause...) -> Int? {
-        
-        CoreStore.assert(
-            NSThread.isMainThread(),
-            "Attempted to fetch from a \(typeName(self)) outside the main thread."
-        )
-        
-        return self.mainContext.fetchCount(from, fetchClauses)
-    }
-    
-    /**
-    Fetches the number of `NSManagedObject`s that satisfy the specified `FetchClause`s. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter fetchClauses: a series of `FetchClause` instances for the fetch request. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: the number `NSManagedObject`s that satisfy the specified `FetchClause`s
-    */
-    public func fetchCount<T: NSManagedObject>(from: From<T>, _ fetchClauses: [FetchClause]) -> Int? {
-        
-        CoreStore.assert(
-            NSThread.isMainThread(),
-            "Attempted to fetch from a \(typeName(self)) outside the main thread."
-        )
-        
-        return self.mainContext.fetchCount(from, fetchClauses)
-    }
-    
-    /**
-    Fetches the `NSManagedObjectID` for the first `NSManagedObject` that satisfies the specified `FetchClause`s. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter fetchClauses: a series of `FetchClause` instances for the fetch request. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: the `NSManagedObjectID` for the first `NSManagedObject` that satisfies the specified `FetchClause`s
-    */
-    public func fetchObjectID<T: NSManagedObject>(from: From<T>, _ fetchClauses: FetchClause...) -> NSManagedObjectID? {
-        
-        CoreStore.assert(
-            NSThread.isMainThread(),
-            "Attempted to fetch from a \(typeName(self)) outside the main thread."
-        )
-        
-        return self.mainContext.fetchObjectID(from, fetchClauses)
-    }
-    
-    /**
-    Fetches the `NSManagedObjectID` for the first `NSManagedObject` that satisfies the specified `FetchClause`s. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter fetchClauses: a series of `FetchClause` instances for the fetch request. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: the `NSManagedObjectID` for the first `NSManagedObject` that satisfies the specified `FetchClause`s
-    */
-    public func fetchObjectID<T: NSManagedObject>(from: From<T>, _ fetchClauses: [FetchClause]) -> NSManagedObjectID? {
-        
-        CoreStore.assert(
-            NSThread.isMainThread(),
-            "Attempted to fetch from a \(typeName(self)) outside the main thread."
-        )
-        
-        return self.mainContext.fetchObjectID(from, fetchClauses)
-    }
-    
-    /**
-    Fetches the `NSManagedObjectID` for all `NSManagedObject`s that satisfy the specified `FetchClause`s. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter fetchClauses: a series of `FetchClause` instances for the fetch request. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: the `NSManagedObjectID` for all `NSManagedObject`s that satisfy the specified `FetchClause`s
-    */
-    public func fetchObjectIDs<T: NSManagedObject>(from: From<T>, _ fetchClauses: FetchClause...) -> [NSManagedObjectID]? {
-        
-        CoreStore.assert(
-            NSThread.isMainThread(),
-            "Attempted to fetch from a \(typeName(self)) outside the main thread."
-        )
-        
-        return self.mainContext.fetchObjectIDs(from, fetchClauses)
-    }
-    
-    /**
-    Fetches the `NSManagedObjectID` for all `NSManagedObject`s that satisfy the specified `FetchClause`s. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter fetchClauses: a series of `FetchClause` instances for the fetch request. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: the `NSManagedObjectID` for all `NSManagedObject`s that satisfy the specified `FetchClause`s
-    */
-    public func fetchObjectIDs<T: NSManagedObject>(from: From<T>, _ fetchClauses: [FetchClause]) -> [NSManagedObjectID]? {
-        
-        CoreStore.assert(
-            NSThread.isMainThread(),
-            "Attempted to fetch from a \(typeName(self)) outside the main thread."
-        )
-        
-        return self.mainContext.fetchObjectIDs(from, fetchClauses)
-    }
-    
-    /**
-    Queries aggregate values as specified by the `QueryClause`s. Requires at least a `Select` clause, and optional `Where`, `OrderBy`, `GroupBy`, and `Tweak` clauses.
-    
-    A "query" differs from a "fetch" in that it only retrieves values already stored in the persistent store. As such, values from unsaved transactions or contexts will not be incorporated in the query result.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter selectClause: a `Select<U>` clause indicating the properties to fetch, and with the generic type indicating the return type.
-    - parameter queryClauses: a series of `QueryClause` instances for the query request. Accepts `Where`, `OrderBy`, `GroupBy`, and `Tweak` clauses.
-    - returns: the result of the the query. The type of the return value is specified by the generic type of the `Select<U>` parameter.
-    */
-    public func queryValue<T: NSManagedObject, U: SelectValueResultType>(from: From<T>, _ selectClause: Select<U>, _ queryClauses: QueryClause...) -> U? {
-        
-        CoreStore.assert(
-            NSThread.isMainThread(),
-            "Attempted to query from a \(typeName(self)) outside the main thread."
-        )
-        
-        return self.mainContext.queryValue(from, selectClause, queryClauses)
-    }
-    
-    /**
-    Queries aggregate values as specified by the `QueryClause`s. Requires at least a `Select` clause, and optional `Where`, `OrderBy`, `GroupBy`, and `Tweak` clauses.
-    
-    A "query" differs from a "fetch" in that it only retrieves values already stored in the persistent store. As such, values from unsaved transactions or contexts will not be incorporated in the query result.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter selectClause: a `Select<U>` clause indicating the properties to fetch, and with the generic type indicating the return type.
-    - parameter queryClauses: a series of `QueryClause` instances for the query request. Accepts `Where`, `OrderBy`, `GroupBy`, and `Tweak` clauses.
-    - returns: the result of the the query. The type of the return value is specified by the generic type of the `Select<U>` parameter.
-    */
-    public func queryValue<T: NSManagedObject, U: SelectValueResultType>(from: From<T>, _ selectClause: Select<U>, _ queryClauses: [QueryClause]) -> U? {
-        
-        CoreStore.assert(
-            NSThread.isMainThread(),
-            "Attempted to query from a \(typeName(self)) outside the main thread."
-        )
-        
-        return self.mainContext.queryValue(from, selectClause, queryClauses)
-    }
-    
-    /**
-    Queries a dictionary of attribute values as specified by the `QueryClause`s. Requires at least a `Select` clause, and optional `Where`, `OrderBy`, `GroupBy`, and `Tweak` clauses.
-    
-    A "query" differs from a "fetch" in that it only retrieves values already stored in the persistent store. As such, values from unsaved transactions or contexts will not be incorporated in the query result.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter selectClause: a `Select<U>` clause indicating the properties to fetch, and with the generic type indicating the return type.
-    - parameter queryClauses: a series of `QueryClause` instances for the query request. Accepts `Where`, `OrderBy`, `GroupBy`, and `Tweak` clauses.
-    - returns: the result of the the query. The type of the return value is specified by the generic type of the `Select<U>` parameter.
-    */
-    public func queryAttributes<T: NSManagedObject>(from: From<T>, _ selectClause: Select<NSDictionary>, _ queryClauses: QueryClause...) -> [[NSString: AnyObject]]? {
-        
-        CoreStore.assert(
-            NSThread.isMainThread(),
-            "Attempted to query from a \(typeName(self)) outside the main thread."
-        )
-        
-        return self.mainContext.queryAttributes(from, selectClause, queryClauses)
-    }
-    
-    /**
-    Queries a dictionary of attribute values as specified by the `QueryClause`s. Requires at least a `Select` clause, and optional `Where`, `OrderBy`, `GroupBy`, and `Tweak` clauses.
-    
-    A "query" differs from a "fetch" in that it only retrieves values already stored in the persistent store. As such, values from unsaved transactions or contexts will not be incorporated in the query result.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter selectClause: a `Select<U>` clause indicating the properties to fetch, and with the generic type indicating the return type.
-    - parameter queryClauses: a series of `QueryClause` instances for the query request. Accepts `Where`, `OrderBy`, `GroupBy`, and `Tweak` clauses.
-    - returns: the result of the the query. The type of the return value is specified by the generic type of the `Select<U>` parameter.
-    */
-    public func queryAttributes<T: NSManagedObject>(from: From<T>, _ selectClause: Select<NSDictionary>, _ queryClauses: [QueryClause]) -> [[NSString: AnyObject]]? {
-        
-        CoreStore.assert(
-            NSThread.isMainThread(),
-            "Attempted to query from a \(typeName(self)) outside the main thread."
-        )
-        
-        return self.mainContext.queryAttributes(from, selectClause, queryClauses)
-    }
-}

CoreStore/Internal/AssociatedObjects.swift

@@ -1,68 +0,0 @@
-//
-//  NSObject+CoreStore.swift
-//  CoreStore
-//
-//  Copyright (c) 2014 John Rommel Estropia
-//
-//  Permission is hereby granted, free of charge, to any person obtaining a copy
-//  of this software and associated documentation files (the "Software"), to deal
-//  in the Software without restriction, including without limitation the rights
-//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-//  copies of the Software, and to permit persons to whom the Software is
-//  furnished to do so, subject to the following conditions:
-//
-//  The above copyright notice and this permission notice shall be included in all
-//  copies or substantial portions of the Software.
-//
-//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-//  SOFTWARE.
-//
-
-import Foundation
-
-internal func getAssociatedObjectForKey<T: AnyObject>(key: UnsafePointer<Void>, inObject object: AnyObject) -> T? {
-    
-    switch objc_getAssociatedObject(object, key) {
-        
-    case let associatedObject as T:
-        return associatedObject
-        
-    case let associatedObject as WeakObject:
-        return associatedObject.object as? T
-        
-    default:
-        return nil
-    }
-}
-
-internal func setAssociatedRetainedObject<T: AnyObject>(associatedObject: T?, forKey key: UnsafePointer<Void>, inObject object: AnyObject) {
-    
-    objc_setAssociatedObject(object, key, associatedObject, .OBJC_ASSOCIATION_RETAIN_NONATOMIC)
-}
-
-internal func setAssociatedCopiedObject<T: AnyObject>(associatedObject: T?, forKey key: UnsafePointer<Void>, inObject object: AnyObject) {
-    
-    objc_setAssociatedObject(object, key, associatedObject, .OBJC_ASSOCIATION_COPY_NONATOMIC)
-}
-
-internal func setAssociatedAssignedObject<T: AnyObject>(associatedObject: T?, forKey key: UnsafePointer<Void>, inObject object: AnyObject) {
-    
-    objc_setAssociatedObject(object, key, associatedObject, .OBJC_ASSOCIATION_ASSIGN)
-}
-
-internal func setAssociatedWeakObject<T: AnyObject>(associatedObject: T?, forKey key: UnsafePointer<Void>, inObject object: AnyObject) {
-    
-    if let associatedObject = associatedObject {
-        
-        objc_setAssociatedObject(object, key, WeakObject(associatedObject), .OBJC_ASSOCIATION_RETAIN_NONATOMIC)
-    }
-    else {
-        
-        objc_setAssociatedObject(object, key, nil, .OBJC_ASSOCIATION_RETAIN_NONATOMIC)
-    }
-}

CoreStore/Internal/NSFileManager+Setup.swift

@@ -1,38 +0,0 @@
-//
-//  NSFileManager+Setup.swift
-//  CoreStore
-//
-//  Created by John Rommel Estropia on 2015/07/19.
-//  Copyright © 2015 John Rommel Estropia. All rights reserved.
-//
-
-import Foundation
-
-
-// MARK: - NSFileManager
-
-internal extension NSFileManager {
-    
-    // MARK: Internal
-    
-    internal func removeSQLiteStoreAtURL(fileURL: NSURL) {
-        
-        do {
-            
-            try self.removeItemAtURL(fileURL)
-        }
-        catch _ { }
-        
-        do {
-            
-            try self.removeItemAtPath(fileURL.path!.stringByAppendingString("-shm"))
-        }
-        catch _ { }
-        
-        do {
-            
-            try self.removeItemAtPath(fileURL.path!.stringByAppendingString("-wal"))
-        }
-        catch _ { }
-    }
-}

CoreStore/Internal/NSManagedObject+Transaction.swift

@@ -1,122 +0,0 @@
-//
-//  NSManagedObject+Transaction.swift
-//  CoreStore
-//
-//  Copyright (c) 2014 John Rommel Estropia
-//
-//  Permission is hereby granted, free of charge, to any person obtaining a copy
-//  of this software and associated documentation files (the "Software"), to deal
-//  in the Software without restriction, including without limitation the rights
-//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-//  copies of the Software, and to permit persons to whom the Software is
-//  furnished to do so, subject to the following conditions:
-//
-//  The above copyright notice and this permission notice shall be included in all
-//  copies or substantial portions of the Software.
-//
-//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-//  SOFTWARE.
-//
-
-import Foundation
-import CoreData
-
-
-// MARK: - NSManagedObject
-
-internal extension NSManagedObject {
-    
-    // MARK: Internal
-    
-    internal dynamic class func createInContext(context: NSManagedObjectContext) -> Self {
-        
-        return self.init(
-            entity: context.entityDescriptionForEntityType(self)!,
-            insertIntoManagedObjectContext: context
-        )
-    }
-    
-    internal dynamic class func inContext(context: NSManagedObjectContext, withObjectID objectID: NSManagedObjectID) -> Self? {
-        
-        return self.typedObjectInContext(context, objectID: objectID)
-    }
-    
-    internal func inContext(context: NSManagedObjectContext) -> Self? {
-        
-        return self.typedObjectInContext(context)
-    }
-    
-    internal func deleteFromContext() {
-        
-        self.managedObjectContext?.deleteObject(self)
-    }
-    
-    
-    // MARK: Private
-    
-    private class func typedObjectInContext<T: NSManagedObject>(context: NSManagedObjectContext, objectID: NSManagedObjectID) -> T? {
-        
-        do {
-            
-            let existingObject = try context.existingObjectWithID(objectID)
-            return (existingObject as! T)
-        }
-        catch {
-            
-            CoreStore.handleError(
-                error as NSError,
-                "Failed to load existing \(typeName(self)) in context."
-            )
-            return nil
-        }
-    }
-    
-    private func typedObjectInContext<T: NSManagedObject>(context: NSManagedObjectContext) -> T? {
-        
-        let objectID = self.objectID
-        if objectID.temporaryID {
-
-            var objectIDError: NSError?
-            let didSucceed = withExtendedLifetime(self.managedObjectContext) { (context: NSManagedObjectContext?) -> Bool in
-                
-                do {
-                    
-                    try context?.obtainPermanentIDsForObjects([self])
-                    return true
-                }
-                catch {
-                    
-                    objectIDError = error as NSError
-                    return false
-                }
-            }
-            if didSucceed != true {
-                
-                CoreStore.handleError(
-                    objectIDError ?? NSError(coreStoreErrorCode: .UnknownError),
-                    "Failed to obtain permanent ID for object."
-                )
-                return nil
-            }
-        }
-
-        do {
-            
-            let existingObject = try context.existingObjectWithID(objectID)
-            return (existingObject as! T)
-        }
-        catch {
-            
-            CoreStore.handleError(
-                error as NSError,
-                "Failed to load existing \(typeName(self)) in context."
-            )
-            return nil
-        }
-    }
-}

CoreStore/Logging/CoreStoreLogger.swift

@@ -1,106 +0,0 @@
-//
-//  CoreStoreLogger.swift
-//  CoreStore
-//
-//  Copyright (c) 2015 John Rommel Estropia
-//
-//  Permission is hereby granted, free of charge, to any person obtaining a copy
-//  of this software and associated documentation files (the "Software"), to deal
-//  in the Software without restriction, including without limitation the rights
-//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-//  copies of the Software, and to permit persons to whom the Software is
-//  furnished to do so, subject to the following conditions:
-//
-//  The above copyright notice and this permission notice shall be included in all
-//  copies or substantial portions of the Software.
-//
-//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-//  SOFTWARE.
-//
-
-import Foundation
-
-
-// MARK: - LogLevel
-
-/**
-The `LogLevel` indicates the severity of a log message.
-*/
-public enum LogLevel {
-    
-    case Trace
-    case Notice
-    case Warning
-    case Fatal
-}
-
-
-// MARK: - CoreStoreLogger
-
-/**
-Custom loggers should implement the `CoreStoreLogger` protocol and pass its instance to `CoreStore.logger`. Calls to `log(...)`, `handleError(...)`, and `assert(...)` are not tied to a specific queue/thread, so it is the implementer's job to handle thread-safety.
-*/
-public protocol CoreStoreLogger {
-    
-    /**
-    Handles log messages sent by the `CoreStore` framework.
-    
-    :level: the severity of the log message
-    :message: the log message
-    :fileName: the source file name
-    :lineNumber: the source line number
-    :functionName: the source function name
-    */
-    func log(level level: LogLevel, message: String, fileName: StaticString, lineNumber: Int, functionName: StaticString)
-    
-    /**
-    Handles errors sent by the `CoreStore` framework.
-    
-    :error: the error
-    :message: the error message
-    :fileName: the source file name
-    :lineNumber: the source line number
-    :functionName: the source function name
-    */
-    func handleError(error error: NSError, message: String, fileName: StaticString, lineNumber: Int, functionName: StaticString)
-    
-    /**
-    Handles assertions made throughout the `CoreStore` framework.
-    
-    :condition: the assertion condition
-    :message: the assertion message
-    :fileName: the source file name
-    :lineNumber: the source line number
-    :functionName: the source function name
-    */
-    func assert(@autoclosure condition: () -> Bool, message: String, fileName: StaticString, lineNumber: Int, functionName: StaticString)
-}
-
-
-// MARK: - Utilities
-
-internal func typeName<T>(value: T) -> String {
-    
-    return "'\(_stdlib_getDemangledTypeName(value))'"
-}
-
-internal func typeName<T>(value: T.Type) -> String {
-    
-    return "'\(value)'"
-}
-
-internal func typeName(value: AnyClass) -> String {
-    
-    return "'\(value)'"
-}
-
-internal func typeName(name: String?) -> String {
-    
-    let typeName = name ?? "unknown"
-    return "<\(typeName)>"
-}

CoreStore/Logging/DefaultLogger.swift

@@ -1,82 +0,0 @@
-//
-//  DefaultLogger.swift
-//  CoreStore
-//
-//  Copyright (c) 2015 John Rommel Estropia
-//
-//  Permission is hereby granted, free of charge, to any person obtaining a copy
-//  of this software and associated documentation files (the "Software"), to deal
-//  in the Software without restriction, including without limitation the rights
-//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-//  copies of the Software, and to permit persons to whom the Software is
-//  furnished to do so, subject to the following conditions:
-//
-//  The above copyright notice and this permission notice shall be included in all
-//  copies or substantial portions of the Software.
-//
-//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-//  SOFTWARE.
-//
-
-import Foundation
-
-
-// MARK: - DefaultLogger
-
-/**
-The `DefaultLogger` is a basic implementation of the `CoreStoreLogger` protocol.
-
-- The `log(...)` method calls `print(...)` to print the level, source file name, line number, function name, and the log message.
-- The `handleError(...)` method calls `print(...)` to print the source file name, line number, function name, and the error message.
-- The `assert(...)` method calls `assert(...)` on the arguments.
-*/
-public final class DefaultLogger: CoreStoreLogger {
-    
-    public init() { }
-   
-    public func log(level level: LogLevel, message: String, fileName: StaticString, lineNumber: Int, functionName: StaticString) {
-        
-        #if DEBUG
-            let icon: String
-            let levelString: String
-            switch level {
-                
-            case .Trace:
-                icon = "🔹"
-                levelString = "Trace"
-                
-            case .Notice:
-                icon = "🔸"
-                levelString = "Notice"
-                
-            case .Warning:
-                icon = "⚠️"
-                levelString = "Warning"
-                
-            case .Fatal:
-                icon = "❗"
-                levelString = "Fatal"
-            }
-            Swift.print("\(icon) [CoreStore: \(levelString)] \(fileName.stringValue.lastPathComponent):\(lineNumber) \(functionName)\n  ↪︎ \(message)\n")
-        #endif
-    }
-    
-    public func handleError(error error: NSError, message: String, fileName: StaticString, lineNumber: Int, functionName: StaticString) {
-        
-        #if DEBUG
-            Swift.print("⚠️ [CoreStore: Error] \(fileName.stringValue.lastPathComponent):\(lineNumber) \(functionName)\n  ↪︎ \(message)\n    \(error)\n")
-        #endif
-    }
-    
-    public func assert(@autoclosure condition: () -> Bool, message: String, fileName: StaticString, lineNumber: Int, functionName: StaticString) {
-        
-        #if DEBUG
-            Swift.assert(condition, "❗ [CoreStore: Assertion Failure] \(message)", file: fileName, line: numericCast(lineNumber))
-        #endif
-    }
-}

CoreStore/Migrating/CoreStore+Migration.swift

@@ -1,144 +0,0 @@
-//
-//  CoreStore+Migration.swift
-//  CoreStore
-//
-//  Copyright (c) 2015 John Rommel Estropia
-//
-//  Permission is hereby granted, free of charge, to any person obtaining a copy
-//  of this software and associated documentation files (the "Software"), to deal
-//  in the Software without restriction, including without limitation the rights
-//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-//  copies of the Software, and to permit persons to whom the Software is
-//  furnished to do so, subject to the following conditions:
-//
-//  The above copyright notice and this permission notice shall be included in all
-//  copies or substantial portions of the Software.
-//
-//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-//  SOFTWARE.
-//
-
-import Foundation
-import CoreData
-import GCDKit
-
-
-// MARK: - CoreStore
-
-public extension CoreStore {
-    
-    /**
-    Asynchronously adds to the `defaultStack` an SQLite store from the given SQLite file name. Note that using `addSQLiteStore(...)` instead of `addSQLiteStoreAndWait(...)` implies that the migrations are allowed and expected (thus the asynchronous `completion`.)
-    
-    - parameter fileName: the local filename for the SQLite persistent store in the "Application Support" directory. A new SQLite file will be created if it does not exist. Note that if you have multiple configurations, you will need to specify a different `fileName` explicitly for each of them.
-    - parameter configuration: an optional configuration name from the model file. If not specified, defaults to `nil`, the "Default" configuration. Note that if you have multiple configurations, you will need to specify a different `fileName` explicitly for each of them.
-    - parameter mappingModelBundles: an optional array of bundles to search mapping model files from. If not set, defaults to the `NSBundle.allBundles()`.
-    - parameter completion: the closure to be executed on the main queue when the process completes, either due to success or failure. The closure's `PersistentStoreResult` argument indicates the result. This closure is NOT executed if an error is thrown, but will be executed with a `.Failure` result if an error occurs asynchronously.
-    - returns: an `NSProgress` instance if a migration has started, or `nil` is no migrations are required
-    */
-    public static func addSQLiteStore(fileName fileName: String, configuration: String? = nil, mappingModelBundles: [NSBundle]? = nil, completion: (PersistentStoreResult) -> Void) throws -> NSProgress? {
-        
-        return try self.defaultStack.addSQLiteStore(
-            fileName: fileName,
-            configuration: configuration,
-            mappingModelBundles: mappingModelBundles,
-            completion: completion
-        )
-    }
-    
-    /**
-    Asynchronously adds to the `defaultStack` an SQLite store from the given SQLite file URL. Note that using `addSQLiteStore(...)` instead of `addSQLiteStoreAndWait(...)` implies that the migrations are allowed and expected (thus the asynchronous `completion`.)
-    
-    - parameter fileURL: the local file URL for the SQLite persistent store. A new SQLite file will be created if it does not exist. If not specified, defaults to a file URL pointing to a "<Application name>.sqlite" file in the "Application Support" directory. Note that if you have multiple configurations, you will need to specify a different `fileURL` explicitly for each of them.
-    - parameter configuration: an optional configuration name from the model file. If not specified, defaults to `nil`, the "Default" configuration. Note that if you have multiple configurations, you will need to specify a different `fileURL` explicitly for each of them.
-    - parameter mappingModelBundles: an optional array of bundles to search mapping model files from. If not set, defaults to the `NSBundle.allBundles()`.
-    - parameter completion: the closure to be executed on the main queue when the process completes, either due to success or failure. The closure's `PersistentStoreResult` argument indicates the result. This closure is NOT executed if an error is thrown, but will be executed with a `.Failure` result if an error occurs asynchronously.
-    - returns: an `NSProgress` instance if a migration has started, or `nil` is no migrations are required
-    */
-    public static func addSQLiteStore(fileURL fileURL: NSURL = defaultSQLiteStoreURL, configuration: String? = nil, mappingModelBundles: [NSBundle]? = NSBundle.allBundles(), completion: (PersistentStoreResult) -> Void) throws -> NSProgress? {
-        
-        return try self.defaultStack.addSQLiteStore(
-            fileURL: fileURL,
-            configuration: configuration,
-            mappingModelBundles: mappingModelBundles,
-            completion: completion
-        )
-    }
-    
-    /**
-    Using the `defaultStack`, migrates an SQLite store with the specified filename to the `DataStack`'s managed object model version WITHOUT adding the migrated store to the data stack.
-    
-    - parameter fileName: the local filename for the SQLite persistent store in the "Application Support" directory.
-    - parameter configuration: an optional configuration name from the model file. If not specified, defaults to `nil` which indicates the "Default" configuration.
-    - parameter mappingModelBundles: an optional array of bundles to search mapping model files from. If not set, defaults to the `NSBundle.mainBundle()`.
-    - parameter sourceBundles: an optional array of bundles to search mapping model files from. If not set, defaults to the `NSBundle.mainBundle()`.
-    - returns: an `NSProgress` instance if a migration has started, or `nil` is no migrations are required
-    */
-    public static func upgradeSQLiteStoreIfNeeded(fileName fileName: String, configuration: String? = nil, mappingModelBundles: [NSBundle]? = nil, completion: (MigrationResult) -> Void) throws -> NSProgress? {
-        
-        return try self.defaultStack.upgradeSQLiteStoreIfNeeded(
-            fileName: fileName,
-            configuration: configuration,
-            mappingModelBundles: mappingModelBundles,
-            completion: completion
-        )
-    }
-    
-    /**
-    Using the `defaultStack`, migrates an SQLite store at the specified file URL and configuration name to the `DataStack`'s managed object model version. This method does NOT add the migrated store to the data stack.
-    
-    - parameter fileName: the local filename for the SQLite persistent store in the "Application Support" directory.
-    - parameter configuration: an optional configuration name from the model file. If not specified, defaults to `nil` which indicates the "Default" configuration.
-    - parameter mappingModelBundles: an optional array of bundles to search mapping model files from. If not set, defaults to the `NSBundle.mainBundle()`.
-    - parameter sourceBundles: an optional array of bundles to search mapping model files from. If not set, defaults to the `NSBundle.mainBundle()`.
-    - returns: an `NSProgress` instance if a migration has started, or `nil` is no migrations are required
-    */
-    public static func upgradeSQLiteStoreIfNeeded(fileURL fileURL: NSURL = defaultSQLiteStoreURL, configuration: String? = nil, mappingModelBundles: [NSBundle]? = nil, completion: (MigrationResult) -> Void) throws -> NSProgress? {
-        
-        return try self.defaultStack.upgradeSQLiteStoreIfNeeded(
-            fileURL: fileURL,
-            configuration: configuration,
-            mappingModelBundles: mappingModelBundles,
-            completion: completion
-        )
-    }
-    
-    /**
-    Using the `defaultStack`, checks for the required migrations needed for the store with the specified filename and configuration to be migrated to the `DataStack`'s managed object model version. This method throws an error if the store does not exist, if inspection of the store failed, or no mapping model was found/inferred.
-    
-    - parameter fileName: the local filename for the SQLite persistent store in the "Application Support" directory.
-    - parameter configuration: an optional configuration name from the model file. If not specified, defaults to `nil` which indicates the "Default" configuration.
-    - parameter mappingModelBundles: an optional array of bundles to search mapping model files from. If not set, defaults to the `NSBundle.allBundles()`.
-    :return: an array of `MigrationType`s indicating the chain of migrations required for the store; or `nil` if either inspection of the store failed, or no mapping model was found/inferred. `MigrationType` acts as a `Bool` and evaluates to `false` if no migration is required, and `true` if either a lightweight or custom migration is needed.
-    */
-    public static func requiredMigrationsForSQLiteStore(fileName fileName: String, configuration: String? = nil, mappingModelBundles: [NSBundle] = NSBundle.allBundles() as [NSBundle]) throws -> [MigrationType] {
-        
-        return try self.defaultStack.requiredMigrationsForSQLiteStore(
-            fileName: fileName,
-            configuration: configuration,
-            mappingModelBundles: mappingModelBundles
-        )
-    }
-    
-    /**
-    Using the `defaultStack`, checks if the store at the specified file URL and configuration needs to be migrated to the `DataStack`'s managed object model version.
-    
-    - parameter fileURL: the local file URL for the SQLite persistent store.
-    - parameter configuration: an optional configuration name from the model file. If not specified, defaults to `nil` which indicates the "Default" configuration.
-    - parameter mappingModelBundles: an optional array of bundles to search mapping model files from. If not set, defaults to the `NSBundle.allBundles()`.
-    :return: a `MigrationType` indicating the type of migration required for the store; or `nil` if either inspection of the store failed, or no mapping model was found/inferred. `MigrationType` acts as a `Bool` and evaluates to `false` if no migration is required, and `true` if either a lightweight or custom migration is needed.
-    */
-    public static func requiredMigrationsForSQLiteStore(fileURL fileURL: NSURL = defaultSQLiteStoreURL, configuration: String? = nil, mappingModelBundles: [NSBundle] = NSBundle.allBundles() as [NSBundle]) throws -> [MigrationType] {
-        
-        return try self.defaultStack.requiredMigrationsForSQLiteStore(
-            fileURL: fileURL,
-            configuration: configuration,
-            mappingModelBundles: mappingModelBundles
-        )
-    }
-}

CoreStore/Migrating/DataStack+Migration.swift

@@ -1,632 +0,0 @@
-//
-//  DataStack+Migration.swift
-//  CoreStore
-//
-//  Copyright (c) 2015 John Rommel Estropia
-//
-//  Permission is hereby granted, free of charge, to any person obtaining a copy
-//  of this software and associated documentation files (the "Software"), to deal
-//  in the Software without restriction, including without limitation the rights
-//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-//  copies of the Software, and to permit persons to whom the Software is
-//  furnished to do so, subject to the following conditions:
-//
-//  The above copyright notice and this permission notice shall be included in all
-//  copies or substantial portions of the Software.
-//
-//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-//  SOFTWARE.
-//
-
-import Foundation
-import CoreData
-import GCDKit
-
-
-// MARK: - DataStack
-
-public extension DataStack {
-    
-    /**
-    Asynchronously adds an in-memory store to the stack.
-    
-    - parameter configuration: an optional configuration name from the model file. If not specified, defaults to `nil`.
-    - parameter completion: the closure to be executed on the main queue when the process completes, either due to success or failure. The closure's `PersistentStoreResult` argument indicates the result.
-    */
-    public func addInMemoryStore(configuration configuration: String? = nil, completion: (PersistentStoreResult) -> Void) {
-        
-        self.coordinator.performBlock {
-            
-            do {
-                
-                let store = try self.coordinator.addPersistentStoreWithType(
-                    NSInMemoryStoreType,
-                    configuration: configuration,
-                    URL: nil,
-                    options: nil
-                )
-                self.updateMetadataForPersistentStore(store)
-                
-                GCDQueue.Main.async {
-                    
-                    completion(PersistentStoreResult(store))
-                }
-            }
-            catch {
-                
-                let storeError = error as NSError
-                CoreStore.handleError(
-                    storeError,
-                    "Failed to add in-memory \(typeName(NSPersistentStore)) to the stack."
-                )
-                
-                GCDQueue.Main.async {
-                    
-                    completion(PersistentStoreResult(storeError))
-                }
-            }
-        }
-    }
-    
-    /**
-    Asynchronously adds to the stack an SQLite store from the given SQLite file name. Note that using `addSQLiteStore(...)` instead of `addSQLiteStoreAndWait(...)` implies that the migrations are allowed and expected (thus the asynchronous `completion`.)
-    
-    - parameter fileName: the local filename for the SQLite persistent store in the "Application Support" directory. A new SQLite file will be created if it does not exist. Note that if you have multiple configurations, you will need to specify a different `fileName` explicitly for each of them.
-    - parameter configuration: an optional configuration name from the model file. If not specified, defaults to `nil`, the "Default" configuration. Note that if you have multiple configurations, you will need to specify a different `fileName` explicitly for each of them.
-    - parameter mappingModelBundles: an optional array of bundles to search mapping model files from. If not set, defaults to the `NSBundle.allBundles()`.
-    - parameter resetStoreOnModelMismatch: Set to true to delete the store on model mismatch; or set to false to report failure instead. Typically should only be set to true when debugging, or if the persistent store can be recreated easily. If not specified, defaults to false.
-    - parameter completion: the closure to be executed on the main queue when the process completes, either due to success or failure. The closure's `PersistentStoreResult` argument indicates the result. This closure is NOT executed if an error is thrown, but will be executed with a `.Failure` result if an error occurs asynchronously.
-    - returns: an `NSProgress` instance if a migration has started, or `nil` is no migrations are required
-    */
-    public func addSQLiteStore(fileName fileName: String, configuration: String? = nil, mappingModelBundles: [NSBundle]? = nil, resetStoreOnModelMismatch: Bool = false, completion: (PersistentStoreResult) -> Void) throws -> NSProgress? {
-        
-        return try self.addSQLiteStore(
-            fileURL: applicationSupportDirectory.URLByAppendingPathComponent(
-                fileName,
-                isDirectory: false
-            ),
-            configuration: configuration,
-            mappingModelBundles: mappingModelBundles,
-            resetStoreOnModelMismatch: resetStoreOnModelMismatch,
-            completion: completion
-        )
-    }
-    
-    /**
-    Asynchronously adds to the stack an SQLite store from the given SQLite file URL. Note that using `addSQLiteStore(...)` instead of `addSQLiteStoreAndWait(...)` implies that the migrations are allowed and expected (thus the asynchronous `completion`.)
-    
-    - parameter fileURL: the local file URL for the SQLite persistent store. A new SQLite file will be created if it does not exist. If not specified, defaults to a file URL pointing to a "<Application name>.sqlite" file in the "Application Support" directory. Note that if you have multiple configurations, you will need to specify a different `fileURL` explicitly for each of them.
-    - parameter configuration: an optional configuration name from the model file. If not specified, defaults to `nil`, the "Default" configuration. Note that if you have multiple configurations, you will need to specify a different `fileURL` explicitly for each of them.
-    - parameter mappingModelBundles: an optional array of bundles to search mapping model files from. If not set, defaults to the `NSBundle.allBundles()`.
-    - parameter resetStoreOnModelMismatch: Set to true to delete the store on model mismatch; or set to false to report failure instead. Typically should only be set to true when debugging, or if the persistent store can be recreated easily. If not specified, defaults to false.
-    - parameter completion: the closure to be executed on the main queue when the process completes, either due to success or failure. The closure's `PersistentStoreResult` argument indicates the result. This closure is NOT executed if an error is thrown, but will be executed with a `.Failure` result if an error occurs asynchronously.
-    - returns: an `NSProgress` instance if a migration has started, or `nil` is no migrations are required
-    */
-    public func addSQLiteStore(fileURL fileURL: NSURL = defaultSQLiteStoreURL, configuration: String? = nil, mappingModelBundles: [NSBundle]? = NSBundle.allBundles(), resetStoreOnModelMismatch: Bool = false, completion: (PersistentStoreResult) -> Void) throws -> NSProgress? {
-        
-        CoreStore.assert(
-            fileURL.fileURL,
-            "The specified file URL for the SQLite store is invalid: \"\(fileURL)\""
-        )
-        
-        let coordinator = self.coordinator;
-        if let store = coordinator.persistentStoreForURL(fileURL) {
-            
-            if store.type == NSSQLiteStoreType
-                && store.configurationName == (configuration ?? Into.defaultConfigurationName) {
-                    
-                    GCDQueue.Main.async {
-                        
-                        completion(PersistentStoreResult(store))
-                    }
-                    return nil
-            }
-            
-            let error = NSError(coreStoreErrorCode: .DifferentPersistentStoreExistsAtURL)
-            CoreStore.handleError(
-                error,
-                "Failed to add SQLite \(typeName(NSPersistentStore)) at \"\(fileURL)\" because a different \(typeName(NSPersistentStore)) at that URL already exists."
-            )
-            throw error
-        }
-        
-        let fileManager = NSFileManager.defaultManager()
-        do {
-            
-            try fileManager.createDirectoryAtURL(
-                fileURL.URLByDeletingLastPathComponent!,
-                withIntermediateDirectories: true,
-                attributes: nil
-            )
-        }
-        catch _ { }
-        
-        do {
-            
-            let metadata = try NSPersistentStoreCoordinator.metadataForPersistentStoreOfType(
-                NSSQLiteStoreType,
-                URL: fileURL
-            )
-            
-            return self.upgradeSQLiteStoreIfNeeded(
-                fileURL: fileURL,
-                metadata: metadata,
-                configuration: configuration,
-                mappingModelBundles: mappingModelBundles,
-                completion: { (result) -> Void in
-                    
-                    if case .Failure(let error) = result {
-                        
-                        if resetStoreOnModelMismatch && error.isCoreDataMigrationError {
-                            
-                            fileManager.removeSQLiteStoreAtURL(fileURL)
-                            do {
-                                
-                                let store = try self.addSQLiteStoreAndWait(
-                                    fileURL: fileURL,
-                                    configuration: configuration,
-                                    resetStoreOnModelMismatch: false
-                                )
-                                
-                                GCDQueue.Main.async {
-                                    
-                                    completion(PersistentStoreResult(store))
-                                }
-                            }
-                            catch {
-                                
-                                completion(PersistentStoreResult(error as NSError))
-                            }
-                            return
-                        }
-                        
-                        completion(PersistentStoreResult(error))
-                        return
-                    }
-                    
-                    do {
-                        
-                        let store = try self.addSQLiteStoreAndWait(
-                            fileURL: fileURL,
-                            configuration: configuration,
-                            resetStoreOnModelMismatch: false
-                        )
-                        
-                        completion(PersistentStoreResult(store))
-                    }
-                    catch {
-                        
-                        completion(PersistentStoreResult(error as NSError))
-                    }
-                }
-            )
-        }
-        catch let error as NSError
-            where error.code == NSFileReadNoSuchFileError && error.domain == NSCocoaErrorDomain {
-                
-                let store = try self.addSQLiteStoreAndWait(
-                    fileURL: fileURL,
-                    configuration: configuration,
-                    resetStoreOnModelMismatch: false
-                )
-                
-                GCDQueue.Main.async {
-                    
-                    completion(PersistentStoreResult(store))
-                }
-                return nil
-        }
-        catch {
-            
-            CoreStore.handleError(
-                error as NSError,
-                "Failed to load SQLite \(typeName(NSPersistentStore)) metadata."
-            )
-            throw error
-        }
-    }
-    
-    /**
-    Migrates an SQLite store with the specified filename to the `DataStack`'s managed object model version WITHOUT adding the migrated store to the data stack.
-    
-    - parameter fileName: the local filename for the SQLite persistent store in the "Application Support" directory.
-    - parameter configuration: an optional configuration name from the model file. If not specified, defaults to `nil` which indicates the "Default" configuration.
-    - parameter mappingModelBundles: an optional array of bundles to search mapping model files from. If not set, defaults to the `NSBundle.mainBundle()`.
-    - parameter sourceBundles: an optional array of bundles to search mapping model files from. If not set, defaults to the `NSBundle.mainBundle()`.
-    - returns: an `NSProgress` instance if a migration has started, or `nil` is no migrations are required
-    */
-    public func upgradeSQLiteStoreIfNeeded(fileName fileName: String, configuration: String? = nil, mappingModelBundles: [NSBundle]? = nil, completion: (MigrationResult) -> Void) throws -> NSProgress? {
-        
-        return try self.upgradeSQLiteStoreIfNeeded(
-            fileURL: applicationSupportDirectory.URLByAppendingPathComponent(
-                fileName,
-                isDirectory: false
-            ),
-            configuration: configuration,
-            mappingModelBundles: mappingModelBundles,
-            completion: completion
-        )
-    }
-    
-    /**
-    Migrates an SQLite store at the specified file URL and configuration name to the `DataStack`'s managed object model version. This method does NOT add the migrated store to the data stack.
-    
-    - parameter fileName: the local filename for the SQLite persistent store in the "Application Support" directory.
-    - parameter configuration: an optional configuration name from the model file. If not specified, defaults to `nil` which indicates the "Default" configuration.
-    - parameter mappingModelBundles: an optional array of bundles to search mapping model files from. If not set, defaults to the `NSBundle.mainBundle()`.
-    - parameter sourceBundles: an optional array of bundles to search mapping model files from. If not set, defaults to the `NSBundle.mainBundle()`.
-    - returns: an `NSProgress` instance if a migration has started, or `nil` is no migrations are required
-    */
-    public func upgradeSQLiteStoreIfNeeded(fileURL fileURL: NSURL = defaultSQLiteStoreURL, configuration: String? = nil, mappingModelBundles: [NSBundle]? = nil, completion: (MigrationResult) -> Void) throws -> NSProgress? {
-        
-        let metadata: [String: AnyObject]
-        do {
-            
-            metadata = try NSPersistentStoreCoordinator.metadataForPersistentStoreOfType(
-                NSSQLiteStoreType,
-                URL: fileURL
-            )
-        }
-        catch {
-            
-            CoreStore.handleError(
-                error as NSError,
-                "Failed to load SQLite \(typeName(NSPersistentStore)) metadata."
-            )
-            throw error
-        }
-        
-        return self.upgradeSQLiteStoreIfNeeded(
-            fileURL: fileURL,
-            metadata: metadata,
-            configuration: configuration,
-            mappingModelBundles: mappingModelBundles,
-            completion: completion
-        )
-    }
-    
-    /**
-    Checks for the required migrations needed for the store with the specified filename and configuration to be migrated to the `DataStack`'s managed object model version. This method throws an error if the store does not exist, if inspection of the store failed, or no mapping model was found/inferred.
-    
-    - parameter fileName: the local filename for the SQLite persistent store in the "Application Support" directory.
-    - parameter configuration: an optional configuration name from the model file. If not specified, defaults to `nil` which indicates the "Default" configuration.
-    - parameter mappingModelBundles: an optional array of bundles to search mapping model files from. If not set, defaults to the `NSBundle.allBundles()`.
-    :return: an array of `MigrationType`s indicating the chain of migrations required for the store; or `nil` if either inspection of the store failed, or no mapping model was found/inferred. `MigrationType` acts as a `Bool` and evaluates to `false` if no migration is required, and `true` if either a lightweight or custom migration is needed.
-    */
-    public func requiredMigrationsForSQLiteStore(fileName fileName: String, configuration: String? = nil, mappingModelBundles: [NSBundle] = NSBundle.allBundles() as [NSBundle]) throws -> [MigrationType] {
-        
-        return try requiredMigrationsForSQLiteStore(
-            fileURL: applicationSupportDirectory.URLByAppendingPathComponent(
-                fileName,
-                isDirectory: false
-            ),
-            configuration: configuration,
-            mappingModelBundles: mappingModelBundles
-        )
-    }
-    
-    /**
-    Checks if the store at the specified file URL and configuration needs to be migrated to the `DataStack`'s managed object model version.
-    
-    - parameter fileURL: the local file URL for the SQLite persistent store.
-    - parameter configuration: an optional configuration name from the model file. If not specified, defaults to `nil` which indicates the "Default" configuration.
-    - parameter mappingModelBundles: an optional array of bundles to search mapping model files from. If not set, defaults to the `NSBundle.allBundles()`.
-    :return: a `MigrationType` indicating the type of migration required for the store; or `nil` if either inspection of the store failed, or no mapping model was found/inferred. `MigrationType` acts as a `Bool` and evaluates to `false` if no migration is required, and `true` if either a lightweight or custom migration is needed.
-    */
-    public func requiredMigrationsForSQLiteStore(fileURL fileURL: NSURL = defaultSQLiteStoreURL, configuration: String? = nil, mappingModelBundles: [NSBundle] = NSBundle.allBundles() as [NSBundle]) throws -> [MigrationType] {
-        
-        let metadata: [String : AnyObject]
-        do {
-            
-            metadata = try NSPersistentStoreCoordinator.metadataForPersistentStoreOfType(
-                NSSQLiteStoreType,
-                URL: fileURL
-            )
-        }
-        catch {
-            
-            CoreStore.handleError(
-                error as NSError,
-                "Failed to load SQLite \(typeName(NSPersistentStore)) metadata."
-            )
-            throw error
-        }
-        
-        guard let migrationSteps = self.computeMigrationFromStoreMetadata(metadata, configuration: configuration, mappingModelBundles: mappingModelBundles) else {
-            
-            let error = NSError(coreStoreErrorCode: .MappingModelNotFound)
-            CoreStore.handleError(
-                error,
-                "Failed to find migration steps from the store at URL \"\(fileURL)\" to version model \"\(self.modelVersion)\"."
-            )
-            throw error
-        }
-        
-        return migrationSteps.map { $0.migrationType }
-    }
-    
-    
-    // MARK: Private
-    
-    private func upgradeSQLiteStoreIfNeeded(fileURL fileURL: NSURL, metadata: [String: AnyObject], configuration: String?, mappingModelBundles: [NSBundle]?, completion: (MigrationResult) -> Void) -> NSProgress? {
-        
-        guard let migrationSteps = self.computeMigrationFromStoreMetadata(metadata, configuration: configuration, mappingModelBundles: mappingModelBundles) else {
-            
-            CoreStore.handleError(
-                NSError(coreStoreErrorCode: .MappingModelNotFound),
-                "Failed to find migration steps from the store at URL \"\(fileURL)\" to version model \"\(model)\"."
-            )
-            
-            GCDQueue.Main.async {
-                
-                completion(MigrationResult(.MappingModelNotFound))
-            }
-            return nil
-        }
-        
-        let numberOfMigrations: Int64 = Int64(migrationSteps.count)
-        if numberOfMigrations == 0 {
-            
-            GCDQueue.Main.async {
-                
-                completion(MigrationResult([]))
-                return
-            }
-            return nil
-        }
-        
-        let migrationTypes = migrationSteps.map { $0.migrationType }
-        var migrationResult: MigrationResult?
-        var operations = [NSOperation]()
-        var cancelled = false
-        
-        let progress = NSProgress(parent: nil, userInfo: nil)
-        progress.totalUnitCount = numberOfMigrations
-        
-        // todo nsprogress crashing sometimes
-        for (sourceModel, destinationModel, mappingModel, _) in migrationSteps {
-            
-            progress.becomeCurrentWithPendingUnitCount(1)
-            
-            let childProgress = NSProgress(parent: progress, userInfo: nil)
-            childProgress.totalUnitCount = 100
-            
-            operations.append(
-                NSBlockOperation { [weak self] in
-                    
-                    guard let strongSelf = self where !cancelled else {
-                        
-                        return
-                    }
-                    
-                    autoreleasepool {
-                        
-                        do {
-                            
-                            try strongSelf.startMigrationForSQLiteStore(
-                                fileURL: fileURL,
-                                sourceModel: sourceModel,
-                                destinationModel: destinationModel,
-                                mappingModel: mappingModel,
-                                progress: childProgress
-                            )
-                        }
-                        catch {
-                            
-                            migrationResult = MigrationResult(error as NSError)
-                            cancelled = true
-                        }
-                    }
-                    
-                    GCDQueue.Main.async {
-                        
-                        withExtendedLifetime(childProgress) { (_: NSProgress) -> Void in }
-                        return
-                    }
-                }
-            )
-            
-            progress.resignCurrent()
-        }
-        
-        let migrationOperation = NSBlockOperation()
-        migrationOperation.qualityOfService = .Utility
-        operations.map { migrationOperation.addDependency($0) }
-        migrationOperation.addExecutionBlock { () -> Void in
-            
-            GCDQueue.Main.async {
-                
-                progress.setProgressHandler(nil)
-                completion(migrationResult ?? MigrationResult(migrationTypes))
-                return
-            }
-        }
-        
-        operations.append(migrationOperation)
-        
-        self.migrationQueue.addOperations(operations, waitUntilFinished: false)
-        
-        return progress
-    }
-    
-    private func computeMigrationFromStoreMetadata(metadata: [String: AnyObject], configuration: String? = nil, mappingModelBundles: [NSBundle]? = nil) -> [(sourceModel: NSManagedObjectModel, destinationModel: NSManagedObjectModel, mappingModel: NSMappingModel, migrationType: MigrationType)]? {
-        
-        let model = self.model
-        if model.isConfiguration(configuration, compatibleWithStoreMetadata: metadata) {
-            
-            return []
-        }
-        
-        guard let initialModel = model[metadata],
-            var currentVersion = initialModel.currentModelVersion else {
-                
-                return nil
-        }
-        
-        let migrationChain: MigrationChain = self.migrationChain.empty
-            ? [currentVersion: model.currentModelVersion!]
-            : self.migrationChain
-        
-        var migrationSteps = [(sourceModel: NSManagedObjectModel, destinationModel: NSManagedObjectModel, mappingModel: NSMappingModel, migrationType: MigrationType)]()
-        
-        while let nextVersion = migrationChain.nextVersionFrom(currentVersion),
-            let sourceModel = model[currentVersion],
-            let destinationModel = model[nextVersion] where sourceModel != model {
-                
-                if let mappingModel = NSMappingModel(
-                    fromBundles: mappingModelBundles,
-                    forSourceModel: sourceModel,
-                    destinationModel: destinationModel) {
-                        
-                        migrationSteps.append(
-                            (
-                                sourceModel: sourceModel,
-                                destinationModel: destinationModel,
-                                mappingModel: mappingModel,
-                                migrationType: .Heavyweight(
-                                    sourceVersion: currentVersion,
-                                    destinationVersion: nextVersion
-                                )
-                            )
-                        )
-                }
-                else {
-                    
-                    do {
-                        
-                        let mappingModel = try NSMappingModel.inferredMappingModelForSourceModel(
-                            sourceModel,
-                            destinationModel: destinationModel
-                        )
-                        
-                        migrationSteps.append(
-                            (
-                                sourceModel: sourceModel,
-                                destinationModel: destinationModel,
-                                mappingModel: mappingModel,
-                                migrationType: .Lightweight(
-                                    sourceVersion: currentVersion,
-                                    destinationVersion: nextVersion
-                                )
-                            )
-                        )
-                    }
-                    catch {
-                        
-                        return nil
-                    }
-                }
-                currentVersion = nextVersion
-        }
-        
-        if migrationSteps.last?.destinationModel == model {
-            
-            return migrationSteps
-        }
-        
-        return nil
-    }
-    
-    private func startMigrationForSQLiteStore(fileURL fileURL: NSURL, sourceModel: NSManagedObjectModel, destinationModel: NSManagedObjectModel, mappingModel: NSMappingModel, progress: NSProgress) throws {
-        
-        autoreleasepool {
-            
-            let journalUpdatingCoordinator = NSPersistentStoreCoordinator(managedObjectModel: sourceModel)
-            let store = try! journalUpdatingCoordinator.addPersistentStoreWithType(
-                NSSQLiteStoreType,
-                configuration: nil,
-                URL: fileURL,
-                options: [NSSQLitePragmasOption: ["journal_mode": "DELETE"]]
-            )
-            try! journalUpdatingCoordinator.removePersistentStore(store)
-        }
-        
-        let migrationManager = MigrationManager(
-            sourceModel: sourceModel,
-            destinationModel: destinationModel,
-            progress: progress
-        )
-        
-        let temporaryDirectoryURL = NSURL(fileURLWithPath: NSTemporaryDirectory(), isDirectory: true).URLByAppendingPathComponent(NSProcessInfo().globallyUniqueString)
-        
-        let fileManager = NSFileManager.defaultManager()
-        try! fileManager.createDirectoryAtURL(
-            temporaryDirectoryURL,
-            withIntermediateDirectories: true,
-            attributes: nil
-        )
-        
-        let temporaryFileURL = temporaryDirectoryURL.URLByAppendingPathComponent(fileURL.lastPathComponent!, isDirectory: false)
-        
-        do {
-            
-            try migrationManager.migrateStoreFromURL(
-                fileURL,
-                type: NSSQLiteStoreType,
-                options: nil,
-                withMappingModel: mappingModel,
-                toDestinationURL: temporaryFileURL,
-                destinationType: NSSQLiteStoreType,
-                destinationOptions: nil
-            )
-        }
-        catch {
-            
-            do {
-                
-                try fileManager.removeItemAtURL(temporaryDirectoryURL)
-            }
-            catch _ { }
-            
-            let sourceVersion = migrationManager.sourceModel.currentModelVersion ?? "???"
-            let destinationVersion = migrationManager.destinationModel.currentModelVersion ?? "???"
-            CoreStore.handleError(
-                error as NSError,
-                "Failed to migrate from version model \"\(sourceVersion)\" to version model \"\(destinationVersion)\"."
-            )
-            
-            throw error
-        }
-        
-        do {
-            
-            try fileManager.replaceItemAtURL(
-                fileURL,
-                withItemAtURL: temporaryFileURL,
-                backupItemName: nil,
-                options: [],
-                resultingItemURL: nil
-            )
-            
-            progress.completedUnitCount = progress.totalUnitCount
-            
-            do {
-                
-                try fileManager.removeItemAtPath(fileURL.path! + "-shm")
-            }
-            catch _ { }
-        }
-        catch {
-            
-            do {
-                
-                try fileManager.removeItemAtURL(temporaryDirectoryURL)
-            }
-            catch _ { }
-            
-            let sourceVersion = migrationManager.sourceModel.currentModelVersion ?? "???"
-            let destinationVersion = migrationManager.destinationModel.currentModelVersion ?? "???"
-            CoreStore.handleError(
-                error as NSError,
-                "Failed to save store after migrating from version model \"\(sourceVersion)\" to version model \"\(destinationVersion)\"."
-            )
-            
-            throw error
-        }
-    }
-}

CoreStore/Migrating/MigrationResult.swift

@@ -1,110 +0,0 @@
-//
-//  MigrationResult.swift
-//  CoreStore
-//
-//  Copyright (c) 2015 John Rommel Estropia
-//
-//  Permission is hereby granted, free of charge, to any person obtaining a copy
-//  of this software and associated documentation files (the "Software"), to deal
-//  in the Software without restriction, including without limitation the rights
-//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-//  copies of the Software, and to permit persons to whom the Software is
-//  furnished to do so, subject to the following conditions:
-//
-//  The above copyright notice and this permission notice shall be included in all
-//  copies or substantial portions of the Software.
-//
-//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-//  SOFTWARE.
-//
-
-import Foundation
-
-
-// MARK: - MigrationResult
-
-/**
-The `MigrationResult` indicates the result of a migration.
-The `MigrationResult` can be treated as a boolean:
-
-    CoreStore.upgradeSQLiteStoreIfNeeded { transaction in
-        // ...
-        let result = transaction.commit()
-        if result {
-            // succeeded
-        }
-        else {
-            // failed
-        }
-    }
-
-or as an `enum`, where the resulting associated object can also be inspected:
-
-    CoreStore.beginAsynchronous { transaction in
-        // ...
-        let result = transaction.commit()
-        switch result {
-        case .Success(let hasChanges):
-            // hasChanges indicates if there were changes or not
-        case .Failure(let error):
-            // error is the NSError instance for the failure
-        }
-    }
-```
-*/
-public enum MigrationResult {
-    
-    // MARK: Public
-    
-    /**
-    `MigrationResult.Success` indicates either the migration succeeded, or there were no migrations needed. The associated value is an array of `MigrationType`s reflecting the migration steps completed.
-    */
-    case Success([MigrationType])
-    
-    /**
-    `SaveResult.Failure` indicates that the migration failed. The associated object for this value is the related `NSError` instance.
-    */
-    case Failure(NSError)
-    
-    
-    // MARK: Internal
-    
-    internal init(_ migrationTypes: [MigrationType]) {
-        
-        self = .Success(migrationTypes)
-    }
-    
-    internal init(_ error: NSError) {
-        
-        self = .Failure(error)
-    }
-    
-    internal init(_ errorCode: CoreStoreErrorCode) {
-        
-        self.init(errorCode, userInfo: nil)
-    }
-    
-    internal init(_ errorCode: CoreStoreErrorCode, userInfo: [NSObject: AnyObject]?) {
-        
-        self.init(NSError(coreStoreErrorCode: errorCode, userInfo: userInfo))
-    }
-}
-
-
-// MARK: - MigrationResult: BooleanType
-
-extension MigrationResult: BooleanType {
-    
-    public var boolValue: Bool {
-        
-        switch self {
-        case .Success: return true
-        case .Failure: return false
-        }
-    }
-}

CoreStore/NSError+CoreStore.swift

@@ -1,98 +0,0 @@
-//
-//  NSError+CoreStore.swift
-//  CoreStore
-//
-//  Copyright (c) 2014 John Rommel Estropia
-//
-//  Permission is hereby granted, free of charge, to any person obtaining a copy
-//  of this software and associated documentation files (the "Software"), to deal
-//  in the Software without restriction, including without limitation the rights
-//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-//  copies of the Software, and to permit persons to whom the Software is
-//  furnished to do so, subject to the following conditions:
-//
-//  The above copyright notice and this permission notice shall be included in all
-//  copies or substantial portions of the Software.
-//
-//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-//  SOFTWARE.
-//
-
-import Foundation
-
-/**
-The `NSError` error domain for `CoreStore`.
-*/
-public let CoreStoreErrorDomain = "com.corestore.error"
-
-/**
-The `NSError` error codes for `CoreStoreErrorDomain`.
-*/
-public enum CoreStoreErrorCode: Int {
-    
-    /**
-    A failure occured because of an unknown error.
-    */
-    case UnknownError
-    
-    /**
-    The `NSPersistentStore` could note be initialized because another store existed at the specified `NSURL`.
-    */
-    case DifferentPersistentStoreExistsAtURL
-    
-    /**
-    The `NSPersistentStore` specified could not be found.
-    */
-    case PersistentStoreNotFound
-    
-    /**
-    An `NSMappingModel` could not be found for a specific source and destination model versions.
-    */
-    case MappingModelNotFound
-}
-
-
-// MARK: - NSError+CoreStore
-
-public extension NSError {
-   
-    /**
-    If the error's domain is equal to `CoreStoreErrorDomain`, returns the associated `CoreStoreErrorCode`. For other domains, returns `nil`.
-    */
-    public var coreStoreErrorCode: CoreStoreErrorCode? {
-        
-        return (self.domain == CoreStoreErrorDomain
-            ? CoreStoreErrorCode(rawValue: self.code)
-            : nil)
-    }
-    
-    
-    // MARK: Internal
-    
-    internal convenience init(coreStoreErrorCode: CoreStoreErrorCode) {
-        
-        self.init(coreStoreErrorCode: coreStoreErrorCode, userInfo: nil)
-    }
-    
-    internal convenience init(coreStoreErrorCode: CoreStoreErrorCode, userInfo: [NSObject: AnyObject]?) {
-        
-        self.init(
-            domain: CoreStoreErrorDomain,
-            code: coreStoreErrorCode.rawValue,
-            userInfo: userInfo)
-    }
-    
-    internal var isCoreDataMigrationError: Bool {
-        
-        let code = self.code
-        return (code == NSPersistentStoreIncompatibleVersionHashError
-            || code == NSMigrationMissingSourceModelError
-            || code == NSMigrationError)
-            && self.domain == NSCocoaErrorDomain
-    }
-}

CoreStore/Observing/CoreStore+Observing.swift

@@ -1,96 +0,0 @@
-//
-//  CoreStore+Observing.swift
-//  CoreStore
-//
-//  Copyright (c) 2015 John Rommel Estropia
-//
-//  Permission is hereby granted, free of charge, to any person obtaining a copy
-//  of this software and associated documentation files (the "Software"), to deal
-//  in the Software without restriction, including without limitation the rights
-//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-//  copies of the Software, and to permit persons to whom the Software is
-//  furnished to do so, subject to the following conditions:
-//
-//  The above copyright notice and this permission notice shall be included in all
-//  copies or substantial portions of the Software.
-//
-//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-//  SOFTWARE.
-//
-
-import Foundation
-import CoreData
-
-
-// MARK: - CoreStore
-
-public extension CoreStore {
-    
-    // MARK: Public
-    
-    /**
-    Using the `defaultStack`, creates a `ObjectMonitor` for the specified `NSManagedObject`. Multiple `ObjectObserver`s may then register themselves to be notified when changes are made to the `NSManagedObject`.
-    
-    - parameter object: the `NSManagedObject` to observe changes from
-    - returns: a `ObjectMonitor` that monitors changes to `object`
-    */
-    public static func monitorObject<T: NSManagedObject>(object: T) -> ObjectMonitor<T> {
-        
-        return self.defaultStack.monitorObject(object)
-    }
-    
-    /**
-    Using the `defaultStack`, creates a `ListMonitor` for a list of `NSManagedObject`s that satisfy the specified fetch clauses. Multiple `ListObserver`s may then register themselves to be notified when changes are made to the list.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter fetchClauses: a series of `FetchClause` instances for fetching the object list. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: a `ListMonitor` instance that monitors changes to the list
-    */
-    public static func monitorList<T: NSManagedObject>(from: From<T>, _ groupBy: GroupBy? = nil, _ queryClauses: FetchClause...) -> ListMonitor<T> {
-        
-        return self.defaultStack.monitorList(from, queryClauses)
-    }
-    
-    /**
-    Using the `defaultStack`, creates a `ListMonitor` for a list of `NSManagedObject`s that satisfy the specified fetch clauses. Multiple `ListObserver`s may then register themselves to be notified when changes are made to the list.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter fetchClauses: a series of `FetchClause` instances for fetching the object list. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: a `ListMonitor` instance that monitors changes to the list
-    */
-    public static func monitorList<T: NSManagedObject>(from: From<T>, _ groupBy: GroupBy? = nil, _ queryClauses: [FetchClause]) -> ListMonitor<T> {
-        
-        return self.defaultStack.monitorList(from, queryClauses)
-    }
-    
-    /**
-    Using the `defaultStack`, creates a `ListMonitor` for a sectioned list of `NSManagedObject`s that satisfy the specified fetch clauses. Multiple `ListObserver`s may then register themselves to be notified when changes are made to the list.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter sectionBy: a `SectionBy` clause indicating the keyPath for the attribute to use when sorting the list into sections.
-    - parameter fetchClauses: a series of `FetchClause` instances for fetching the object list. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: a `ListMonitor` instance that monitors changes to the list
-    */
-    public static func monitorSectionedList<T: NSManagedObject>(from: From<T>, _ sectionBy: SectionBy, _ fetchClauses: FetchClause...) -> ListMonitor<T> {
-        
-        return self.defaultStack.monitorSectionedList(from, sectionBy, fetchClauses)
-    }
-    
-    /**
-    Using the `defaultStack`, creates a `ListMonitor` for a sectioned list of `NSManagedObject`s that satisfy the specified fetch clauses. Multiple `ListObserver`s may then register themselves to be notified when changes are made to the list.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter sectionBy: a `SectionBy` clause indicating the keyPath for the attribute to use when sorting the list into sections.
-    - parameter fetchClauses: a series of `FetchClause` instances for fetching the object list. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: a `ListMonitor` instance that monitors changes to the list
-    */
-    public static func monitorSectionedList<T: NSManagedObject>(from: From<T>, _ sectionBy: SectionBy, _ fetchClauses: [FetchClause]) -> ListMonitor<T> {
-        
-        return self.defaultStack.monitorSectionedList(from, sectionBy, fetchClauses)
-    }
-}

CoreStore/Observing/DataStack+Observing.swift

@@ -1,133 +0,0 @@
-//
-//  DataStack+Observing.swift
-//  CoreStore
-//
-//  Copyright (c) 2015 John Rommel Estropia
-//
-//  Permission is hereby granted, free of charge, to any person obtaining a copy
-//  of this software and associated documentation files (the "Software"), to deal
-//  in the Software without restriction, including without limitation the rights
-//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-//  copies of the Software, and to permit persons to whom the Software is
-//  furnished to do so, subject to the following conditions:
-//
-//  The above copyright notice and this permission notice shall be included in all
-//  copies or substantial portions of the Software.
-//
-//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-//  SOFTWARE.
-//
-
-import Foundation
-import CoreData
-import GCDKit
-
-
-// MARK: - DataStack
-
-public extension DataStack {
-    
-    // MARK: Public
-    
-    /**
-    Creates a `ObjectMonitor` for the specified `NSManagedObject`. Multiple `ObjectObserver`s may then register themselves to be notified when changes are made to the `NSManagedObject`.
-    
-    - parameter object: the `NSManagedObject` to observe changes from
-    - returns: a `ObjectMonitor` that monitors changes to `object`
-    */
-    public func monitorObject<T: NSManagedObject>(object: T) -> ObjectMonitor<T> {
-        
-        CoreStore.assert(
-            NSThread.isMainThread(),
-            "Attempted to observe objects from \(typeName(self)) outside the main thread."
-        )
-        
-        return ObjectMonitor(
-            dataStack: self,
-            object: object
-        )
-    }
-    
-    /**
-    Creates a `ListMonitor` for a list of `NSManagedObject`s that satisfy the specified fetch clauses. Multiple `ListObserver`s may then register themselves to be notified when changes are made to the list.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter fetchClauses: a series of `FetchClause` instances for fetching the object list. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: a `ListMonitor` instance that monitors changes to the list
-    */
-    public func monitorList<T: NSManagedObject>(from: From<T>, _ fetchClauses: FetchClause...) -> ListMonitor<T> {
-        
-        return self.monitorList(from, fetchClauses)
-    }
-    
-    /**
-    Creates a `ListMonitor` for a list of `NSManagedObject`s that satisfy the specified fetch clauses. Multiple `ListObserver`s may then register themselves to be notified when changes are made to the list.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter fetchClauses: a series of `FetchClause` instances for fetching the object list. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: a `ListMonitor` instance that monitors changes to the list
-    */
-    public func monitorList<T: NSManagedObject>(from: From<T>, _ fetchClauses: [FetchClause]) -> ListMonitor<T> {
-        
-        CoreStore.assert(
-            NSThread.isMainThread(),
-            "Attempted to observe objects from \(typeName(self)) outside the main thread."
-        )
-        CoreStore.assert(
-            fetchClauses.filter { $0 is OrderBy }.count > 0,
-            "A ListMonitor requires an OrderBy clause."
-        )
-        
-        return ListMonitor(
-            dataStack: self,
-            from: from,
-            sectionBy: nil,
-            fetchClauses: fetchClauses
-        )
-    }
-    
-    /**
-    Creates a `ListMonitor` for a sectioned list of `NSManagedObject`s that satisfy the specified fetch clauses. Multiple `ListObserver`s may then register themselves to be notified when changes are made to the list.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter sectionBy: a `SectionBy` clause indicating the keyPath for the attribute to use when sorting the list into sections.
-    - parameter fetchClauses: a series of `FetchClause` instances for fetching the object list. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: a `ListMonitor` instance that monitors changes to the list
-    */
-    public func monitorSectionedList<T: NSManagedObject>(from: From<T>, _ sectionBy: SectionBy, _ fetchClauses: FetchClause...) -> ListMonitor<T> {
-     
-        return self.monitorSectionedList(from, sectionBy, fetchClauses)
-    }
-    
-    /**
-    Creates a `ListMonitor` for a sectioned list of `NSManagedObject`s that satisfy the specified fetch clauses. Multiple `ListObserver`s may then register themselves to be notified when changes are made to the list.
-    
-    - parameter from: a `From` clause indicating the entity type
-    - parameter sectionBy: a `SectionBy` clause indicating the keyPath for the attribute to use when sorting the list into sections.
-    - parameter fetchClauses: a series of `FetchClause` instances for fetching the object list. Accepts `Where`, `OrderBy`, and `Tweak` clauses.
-    - returns: a `ListMonitor` instance that monitors changes to the list
-    */
-    public func monitorSectionedList<T: NSManagedObject>(from: From<T>, _ sectionBy: SectionBy, _ fetchClauses: [FetchClause]) -> ListMonitor<T> {
-        
-        CoreStore.assert(
-            NSThread.isMainThread(),
-            "Attempted to observe objects from \(typeName(self)) outside the main thread."
-        )
-        CoreStore.assert(
-            fetchClauses.filter { $0 is OrderBy }.count > 0,
-            "A ListMonitor requires an OrderBy clause."
-        )
-        
-        return ListMonitor(
-            dataStack: self,
-            from: from,
-            sectionBy: sectionBy,
-            fetchClauses: fetchClauses
-        )
-    }
-}

CoreStore/Observing/ListMonitor.swift

@@ -1,791 +0,0 @@
-//
-//  ListMonitor.swift
-//  CoreStore
-//
-//  Copyright (c) 2015 John Rommel Estropia
-//
-//  Permission is hereby granted, free of charge, to any person obtaining a copy
-//  of this software and associated documentation files (the "Software"), to deal
-//  in the Software without restriction, including without limitation the rights
-//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-//  copies of the Software, and to permit persons to whom the Software is
-//  furnished to do so, subject to the following conditions:
-//
-//  The above copyright notice and this permission notice shall be included in all
-//  copies or substantial portions of the Software.
-//
-//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-//  SOFTWARE.
-//
-
-import Foundation
-import CoreData
-import GCDKit
-
-
-// MARK: - ListMonitor
-
-/**
-The `ListMonitor` monitors changes to a list of `NSManagedObject` instances. Observers that implement the `ListObserver` protocol may then register themselves to the `ListMonitor`'s `addObserver(_:)` method:
-
-    let monitor = CoreStore.monitorList(
-        From(MyPersonEntity),
-        Where("title", isEqualTo: "Engineer"),
-        OrderBy(.Ascending("lastName"))
-    )
-    monitor.addObserver(self)
-
-The `ListMonitor` instance needs to be held on (retained) for as long as the list needs to be observed.
-Observers registered via `addObserver(_:)` are not retained. `ListMonitor` only keeps a `weak` reference to all observers, thus keeping itself free from retain-cycles.
-
-Lists created with `monitorList(...)` keep a single-section list of objects, where each object can be accessed by index:
-
-    let firstPerson: MyPersonEntity = monitor[0]
-
-Accessing the list with an index above the valid range will throw an exception.
-
-Creating a sectioned-list is also possible with the `monitorSectionedList(...)` method:
-
-    let monitor = CoreStore.monitorSectionedList(
-        From(MyPersonEntity),
-        SectionBy("age") { "Age \($0)" },
-        Where("title", isEqualTo: "Engineer"),
-        OrderBy(.Ascending("lastName"))
-    )
-    monitor.addObserver(self)
-
-Objects from `ListMonitor`s created this way can be accessed either by an `NSIndexPath` or a tuple:
-
-    let indexPath = NSIndexPath(forItem: 3, inSection: 2)
-    let person1 = monitor[indexPath]
-    let person2 = monitor[2, 3]
-
-In the example above, both `person1` and `person2` will contain the object at section=2, index=3.
-*/
-public final class ListMonitor<T: NSManagedObject> {
-    
-    // MARK: Public
-    
-    /**
-    Accesses the object at the given index within the first section. This subscript indexer is typically used for `ListMonitor`s created with `addObserver(_:)`.
-    
-    - parameter index: the index of the object. Using an index above the valid range will throw an exception.
-    */
-    public subscript(index: Int) -> T {
-        
-        return self[0, index]
-    }
-    
-    /**
-    Accesses the object at the given `sectionIndex` and `itemIndex`. This subscript indexer is typically used for `ListMonitor`s created with `monitorSectionedList(_:)`.
-    
-    - parameter sectionIndex: the section index for the object. Using a `sectionIndex` with an invalid range will throw an exception.
-    - parameter itemIndex: the index for the object within the section. Using an `itemIndex` with an invalid range will throw an exception.
-    */
-    public subscript(sectionIndex: Int, itemIndex: Int) -> T {
-        
-        return self[NSIndexPath(forItem: itemIndex, inSection: sectionIndex)]
-    }
-    
-    /**
-    Accesses the object at the given `NSIndexPath`. This subscript indexer is typically used for `ListMonitor`s created with `monitorSectionedList(_:)`.
-    
-    - parameter indexPath: the `NSIndexPath` for the object. Using an `indexPath` with an invalid range will throw an exception.
-    */
-    public subscript(indexPath: NSIndexPath) -> T {
-        
-        return self.fetchedResultsController.objectAtIndexPath(indexPath) as! T
-    }
-    
-    /**
-    Returns the number of sections
-    */
-    public func numberOfSections() -> Int {
-        
-        return self.fetchedResultsController.sections?.count ?? 0
-    }
-    
-    /**
-    Returns the number of objects in the specified section
-    
-    - parameter section: the section index
-    */
-    public func numberOfObjectsInSection(section: Int) -> Int {
-        
-        return self.fetchedResultsController.sections?[section].numberOfObjects ?? 0
-    }
-    
-    /**
-    Returns the `NSFetchedResultsSectionInfo` for the specified section
-    
-    - parameter section: the section index
-    */
-    public func sectionInfoAtIndex(section: Int) -> NSFetchedResultsSectionInfo {
-        
-        return self.fetchedResultsController.sections![section]
-    }
-    
-    /**
-    Registers a `ListObserver` to be notified when changes to the receiver's list occur.
-    
-    To prevent retain-cycles, `ListMonitor` only keeps `weak` references to its observers.
-    
-    For thread safety, this method needs to be called from the main thread. An assertion failure will occur (on debug builds only) if called from any thread other than the main thread.
-    
-    Calling `addObserver(_:)` multiple times on the same observer is safe, as `ListMonitor` unregisters previous notifications to the observer before re-registering them.
-    
-    - parameter observer: a `ListObserver` to send change notifications to
-    */
-    public func addObserver<U: ListObserver where U.EntityType == T>(observer: U) {
-        
-        CoreStore.assert(
-            NSThread.isMainThread(),
-            "Attempted to add an observer of type \(typeName(observer)) outside the main thread."
-        )
-        
-        self.removeObserver(observer)
-        
-        self.registerChangeNotification(
-            &NotificationKey.willChangeList,
-            name: ListMonitorWillChangeListNotification,
-            toObserver: observer,
-            callback: { [weak observer] (monitor) -> Void in
-                
-                if let observer = observer {
-                    
-                    observer.listMonitorWillChange(monitor)
-                }
-            }
-        )
-        self.registerChangeNotification(
-            &NotificationKey.didChangeList,
-            name: ListMonitorDidChangeListNotification,
-            toObserver: observer,
-            callback: { [weak observer] (monitor) -> Void in
-                
-                if let observer = observer {
-                    
-                    observer.listMonitorDidChange(monitor)
-                }
-            }
-        )
-    }
-    
-    /**
-    Registers a `ListObjectObserver` to be notified when changes to the receiver's list occur.
-    
-    To prevent retain-cycles, `ListMonitor` only keeps `weak` references to its observers.
-    
-    For thread safety, this method needs to be called from the main thread. An assertion failure will occur (on debug builds only) if called from any thread other than the main thread.
-    
-    Calling `addObserver(_:)` multiple times on the same observer is safe, as `ListMonitor` unregisters previous notifications to the observer before re-registering them.
-    
-    - parameter observer: a `ListObjectObserver` to send change notifications to
-    */
-    public func addObserver<U: ListObjectObserver where U.EntityType == T>(observer: U) {
-        
-        CoreStore.assert(
-            NSThread.isMainThread(),
-            "Attempted to add an observer of type \(typeName(observer)) outside the main thread."
-        )
-        
-        self.removeObserver(observer)
-        
-        self.registerChangeNotification(
-            &NotificationKey.willChangeList,
-            name: ListMonitorWillChangeListNotification,
-            toObserver: observer,
-            callback: { [weak observer] (monitor) -> Void in
-                
-                if let observer = observer {
-                    
-                    observer.listMonitorWillChange(monitor)
-                }
-            }
-        )
-        self.registerChangeNotification(
-            &NotificationKey.didChangeList,
-            name: ListMonitorDidChangeListNotification,
-            toObserver: observer,
-            callback: { [weak observer] (monitor) -> Void in
-                
-                if let observer = observer {
-                    
-                    observer.listMonitorDidChange(monitor)
-                }
-            }
-        )
-        
-        self.registerObjectNotification(
-            &NotificationKey.didInsertObject,
-            name: ListMonitorDidInsertObjectNotification,
-            toObserver: observer,
-            callback: { [weak observer] (monitor, object, indexPath, newIndexPath) -> Void in
-                
-                if let observer = observer {
-                    
-                    observer.listMonitor(
-                        monitor,
-                        didInsertObject: object,
-                        toIndexPath: newIndexPath!
-                    )
-                }
-            }
-        )
-        self.registerObjectNotification(
-            &NotificationKey.didDeleteObject,
-            name: ListMonitorDidDeleteObjectNotification,
-            toObserver: observer,
-            callback: { [weak observer] (monitor, object, indexPath, newIndexPath) -> Void in
-                
-                if let observer = observer {
-                    
-                    observer.listMonitor(
-                        monitor,
-                        didDeleteObject: object,
-                        fromIndexPath: indexPath!
-                    )
-                }
-            }
-        )
-        self.registerObjectNotification(
-            &NotificationKey.didUpdateObject,
-            name: ListMonitorDidUpdateObjectNotification,
-            toObserver: observer,
-            callback: { [weak observer] (monitor, object, indexPath, newIndexPath) -> Void in
-                
-                if let observer = observer {
-                    
-                    observer.listMonitor(
-                        monitor,
-                        didUpdateObject: object,
-                        atIndexPath: indexPath!
-                    )
-                }
-            }
-        )
-        self.registerObjectNotification(
-            &NotificationKey.didMoveObject,
-            name: ListMonitorDidMoveObjectNotification,
-            toObserver: observer,
-            callback: { [weak observer] (monitor, object, indexPath, newIndexPath) -> Void in
-                
-                if let observer = observer {
-                    
-                    observer.listMonitor(
-                        monitor,
-                        didMoveObject: object,
-                        fromIndexPath: indexPath!,
-                        toIndexPath: newIndexPath!
-                    )
-                }
-            }
-        )
-    }
-    
-    /**
-    Registers a `ListSectionObserver` to be notified when changes to the receiver's list occur.
-    
-    To prevent retain-cycles, `ListMonitor` only keeps `weak` references to its observers.
-    
-    For thread safety, this method needs to be called from the main thread. An assertion failure will occur (on debug builds only) if called from any thread other than the main thread.
-    
-    Calling `addObserver(_:)` multiple times on the same observer is safe, as `ListMonitor` unregisters previous notifications to the observer before re-registering them.
-    
-    - parameter observer: a `ListSectionObserver` to send change notifications to
-    */
-    public func addObserver<U: ListSectionObserver where U.EntityType == T>(observer: U) {
-        
-        CoreStore.assert(
-            NSThread.isMainThread(),
-            "Attempted to add an observer of type \(typeName(observer)) outside the main thread."
-        )
-        
-        self.removeObserver(observer)
-        
-        self.registerChangeNotification(
-            &NotificationKey.willChangeList,
-            name: ListMonitorWillChangeListNotification,
-            toObserver: observer,
-            callback: { [weak observer] (monitor) -> Void in
-                
-                if let observer = observer {
-                    
-                    observer.listMonitorWillChange(monitor)
-                }
-            }
-        )
-        self.registerChangeNotification(
-            &NotificationKey.didChangeList,
-            name: ListMonitorDidChangeListNotification,
-            toObserver: observer,
-            callback: { [weak observer] (monitor) -> Void in
-                
-                if let observer = observer {
-                    
-                    observer.listMonitorDidChange(monitor)
-                }
-            }
-        )
-        
-        self.registerObjectNotification(
-            &NotificationKey.didInsertObject,
-            name: ListMonitorDidInsertObjectNotification,
-            toObserver: observer,
-            callback: { [weak observer] (monitor, object, indexPath, newIndexPath) -> Void in
-                
-                if let observer = observer {
-                    
-                    observer.listMonitor(
-                        monitor,
-                        didInsertObject: object,
-                        toIndexPath: newIndexPath!
-                    )
-                }
-            }
-        )
-        self.registerObjectNotification(
-            &NotificationKey.didDeleteObject,
-            name: ListMonitorDidDeleteObjectNotification,
-            toObserver: observer,
-            callback: { [weak observer] (monitor, object, indexPath, newIndexPath) -> Void in
-                
-                if let observer = observer {
-                    
-                    observer.listMonitor(
-                        monitor,
-                        didDeleteObject: object,
-                        fromIndexPath: indexPath!
-                    )
-                }
-            }
-        )
-        self.registerObjectNotification(
-            &NotificationKey.didUpdateObject,
-            name: ListMonitorDidUpdateObjectNotification,
-            toObserver: observer,
-            callback: { [weak observer] (monitor, object, indexPath, newIndexPath) -> Void in
-                
-                if let observer = observer {
-                    
-                    observer.listMonitor(
-                        monitor,
-                        didUpdateObject: object,
-                        atIndexPath: indexPath!
-                    )
-                }
-            }
-        )
-        self.registerObjectNotification(
-            &NotificationKey.didMoveObject,
-            name: ListMonitorDidMoveObjectNotification,
-            toObserver: observer,
-            callback: { [weak observer] (monitor, object, indexPath, newIndexPath) -> Void in
-                
-                if let observer = observer {
-                    
-                    observer.listMonitor(
-                        monitor,
-                        didMoveObject: object,
-                        fromIndexPath: indexPath!,
-                        toIndexPath: newIndexPath!
-                    )
-                }
-            }
-        )
-        
-        self.registerSectionNotification(
-            &NotificationKey.didInsertSection,
-            name: ListMonitorDidInsertSectionNotification,
-            toObserver: observer,
-            callback: { [weak observer] (monitor, sectionInfo, sectionIndex) -> Void in
-                
-                if let observer = observer {
-                    
-                    observer.listMonitor(
-                        monitor,
-                        didInsertSection: sectionInfo,
-                        toSectionIndex: sectionIndex
-                    )
-                }
-            }
-        )
-        self.registerSectionNotification(
-            &NotificationKey.didDeleteSection,
-            name: ListMonitorDidDeleteSectionNotification,
-            toObserver: observer,
-            callback: { [weak observer] (monitor, sectionInfo, sectionIndex) -> Void in
-                
-                if let observer = observer {
-                    
-                    observer.listMonitor(
-                        monitor,
-                        didDeleteSection: sectionInfo,
-                        fromSectionIndex: sectionIndex
-                    )
-                }
-            }
-        )
-    }
-    
-    /**
-    Unregisters a `ListObserver` from receiving notifications for changes to the receiver's list.
-    
-    For thread safety, this method needs to be called from the main thread. An assertion failure will occur (on debug builds only) if called from any thread other than the main thread.
-    
-    - parameter observer: a `ListObserver` to unregister notifications to
-    */
-    public func removeObserver<U: ListObserver where U.EntityType == T>(observer: U) {
-        
-        CoreStore.assert(
-            NSThread.isMainThread(),
-            "Attempted to remove an observer of type \(typeName(observer)) outside the main thread."
-        )
-        
-        let nilValue: AnyObject? = nil
-        setAssociatedRetainedObject(nilValue, forKey: &NotificationKey.willChangeList, inObject: observer)
-        setAssociatedRetainedObject(nilValue, forKey: &NotificationKey.didChangeList, inObject: observer)
-        
-        setAssociatedRetainedObject(nilValue, forKey: &NotificationKey.didInsertObject, inObject: observer)
-        setAssociatedRetainedObject(nilValue, forKey: &NotificationKey.didDeleteObject, inObject: observer)
-        setAssociatedRetainedObject(nilValue, forKey: &NotificationKey.didUpdateObject, inObject: observer)
-        setAssociatedRetainedObject(nilValue, forKey: &NotificationKey.didMoveObject, inObject: observer)
-        
-        setAssociatedRetainedObject(nilValue, forKey: &NotificationKey.didInsertSection, inObject: observer)
-        setAssociatedRetainedObject(nilValue, forKey: &NotificationKey.didDeleteSection, inObject: observer)
-    }
-    
-    
-    // MARK: Internal
-    
-    internal init(dataStack: DataStack, from: From<T>, sectionBy: SectionBy?, fetchClauses: [FetchClause]) {
-        
-        let context = dataStack.mainContext
-        
-        let fetchRequest = NSFetchRequest()
-        from.applyToFetchRequest(fetchRequest, context: context)
-        
-        fetchRequest.fetchLimit = 0
-        fetchRequest.resultType = .ManagedObjectResultType
-        
-        for clause in fetchClauses {
-            
-            clause.applyToFetchRequest(fetchRequest)
-        }
-        
-        let fetchedResultsController = NSFetchedResultsController(
-            fetchRequest: fetchRequest,
-            managedObjectContext: context,
-            sectionNameKeyPath: sectionBy?.sectionKeyPath,
-            cacheName: nil
-        )
-        
-        let fetchedResultsControllerDelegate = FetchedResultsControllerDelegate()
-        
-        self.fetchedResultsController = fetchedResultsController
-        self.fetchedResultsControllerDelegate = fetchedResultsControllerDelegate
-        self.parentStack = dataStack
-        
-        if let sectionIndexTransformer = sectionBy?.sectionIndexTransformer {
-            
-            self.sectionIndexTransformer = sectionIndexTransformer
-        }
-        else {
-            
-            self.sectionIndexTransformer = { $0 }
-        }
-        
-        fetchedResultsControllerDelegate.handler = self
-        fetchedResultsControllerDelegate.fetchedResultsController = fetchedResultsController
-        try! fetchedResultsController.performFetch()
-    }
-    
-    
-    // MARK: Private
-    
-    private let fetchedResultsController: NSFetchedResultsController
-    private let fetchedResultsControllerDelegate: FetchedResultsControllerDelegate
-    private let sectionIndexTransformer: (sectionName: KeyPath?) -> String?
-    private weak var parentStack: DataStack?
-    
-    private func registerChangeNotification(notificationKey: UnsafePointer<Void>, name: String, toObserver observer: AnyObject, callback: (monitor: ListMonitor<T>) -> Void) {
-        
-        setAssociatedRetainedObject(
-            NotificationObserver(
-                notificationName: name,
-                object: self,
-                closure: { [weak self] (note) -> Void in
-                    
-                    if let strongSelf = self {
-                        
-                        callback(monitor: strongSelf)
-                    }
-                }
-            ),
-            forKey: notificationKey,
-            inObject: observer
-        )
-    }
-    
-    private func registerObjectNotification(notificationKey: UnsafePointer<Void>, name: String, toObserver observer: AnyObject, callback: (monitor: ListMonitor<T>, object: T, indexPath: NSIndexPath?, newIndexPath: NSIndexPath?) -> Void) {
-        
-        setAssociatedRetainedObject(
-            NotificationObserver(
-                notificationName: name,
-                object: self,
-                closure: { [weak self] (note) -> Void in
-                    
-                    if let strongSelf = self,
-                        let userInfo = note.userInfo,
-                        let object = userInfo[UserInfoKeyObject] as? T {
-                            
-                            callback(
-                                monitor: strongSelf,
-                                object: object,
-                                indexPath: userInfo[UserInfoKeyIndexPath] as? NSIndexPath,
-                                newIndexPath: userInfo[UserInfoKeyNewIndexPath] as? NSIndexPath
-                            )
-                    }
-                }
-            ),
-            forKey: notificationKey,
-            inObject: observer
-        )
-    }
-    
-    private func registerSectionNotification(notificationKey: UnsafePointer<Void>, name: String, toObserver observer: AnyObject, callback: (monitor: ListMonitor<T>, sectionInfo: NSFetchedResultsSectionInfo, sectionIndex: Int) -> Void) {
-        
-        setAssociatedRetainedObject(
-            NotificationObserver(
-                notificationName: name,
-                object: self,
-                closure: { [weak self] (note) -> Void in
-                    
-                    if let strongSelf = self,
-                        let userInfo = note.userInfo,
-                        let sectionInfo = userInfo[UserInfoKeySectionInfo] as? NSFetchedResultsSectionInfo,
-                        let sectionIndex = (userInfo[UserInfoKeySectionIndex] as? NSNumber)?.integerValue {
-                            
-                            callback(
-                                monitor: strongSelf,
-                                sectionInfo: sectionInfo,
-                                sectionIndex: sectionIndex
-                            )
-                    }
-                }
-            ),
-            forKey: notificationKey,
-            inObject: observer
-        )
-    }
-}
-
-
-// MARK: - ListMonitor: FetchedResultsControllerHandler
-
-extension ListMonitor: FetchedResultsControllerHandler {
-    
-    // MARK: FetchedResultsControllerHandler
-    
-    private func controller(controller: NSFetchedResultsController, didChangeObject anObject: AnyObject, atIndexPath indexPath: NSIndexPath?, forChangeType type: NSFetchedResultsChangeType, newIndexPath: NSIndexPath?) {
-        
-        switch type {
-            
-        case .Insert:
-            NSNotificationCenter.defaultCenter().postNotificationName(
-                ListMonitorDidInsertObjectNotification,
-                object: self,
-                userInfo: [
-                    UserInfoKeyObject: anObject,
-                    UserInfoKeyNewIndexPath: newIndexPath!
-                ]
-            )
-            
-        case .Delete:
-            NSNotificationCenter.defaultCenter().postNotificationName(
-                ListMonitorDidDeleteObjectNotification,
-                object: self,
-                userInfo: [
-                    UserInfoKeyObject: anObject,
-                    UserInfoKeyIndexPath: indexPath!
-                ]
-            )
-            
-        case .Update:
-            NSNotificationCenter.defaultCenter().postNotificationName(
-                ListMonitorDidUpdateObjectNotification,
-                object: self,
-                userInfo: [
-                    UserInfoKeyObject: anObject,
-                    UserInfoKeyIndexPath: indexPath!
-                ]
-            )
-            
-        case .Move:
-            NSNotificationCenter.defaultCenter().postNotificationName(
-                ListMonitorDidMoveObjectNotification,
-                object: self,
-                userInfo: [
-                    UserInfoKeyObject: anObject,
-                    UserInfoKeyIndexPath: indexPath!,
-                    UserInfoKeyNewIndexPath: newIndexPath!
-                ]
-            )
-        }
-    }
-    
-    private func controller(controller: NSFetchedResultsController, didChangeSection sectionInfo: NSFetchedResultsSectionInfo, atIndex sectionIndex: Int, forChangeType type: NSFetchedResultsChangeType) {
-        
-        switch type {
-            
-        case .Insert:
-            NSNotificationCenter.defaultCenter().postNotificationName(
-                ListMonitorDidInsertSectionNotification,
-                object: self,
-                userInfo: [
-                    UserInfoKeySectionInfo: sectionInfo,
-                    UserInfoKeySectionIndex: NSNumber(integer: sectionIndex)
-                ]
-            )
-            
-        case .Delete:
-            NSNotificationCenter.defaultCenter().postNotificationName(
-                ListMonitorDidDeleteSectionNotification,
-                object: self,
-                userInfo: [
-                    UserInfoKeySectionInfo: sectionInfo,
-                    UserInfoKeySectionIndex: NSNumber(integer: sectionIndex)
-                ]
-            )
-            
-        default:
-            break
-        }
-    }
-    
-    private func controllerWillChangeContent(controller: NSFetchedResultsController) {
-        
-        NSNotificationCenter.defaultCenter().postNotificationName(
-            ListMonitorWillChangeListNotification,
-            object: self
-        )
-    }
-    
-    private func controllerDidChangeContent(controller: NSFetchedResultsController) {
-        
-        NSNotificationCenter.defaultCenter().postNotificationName(
-            ListMonitorDidChangeListNotification,
-            object: self
-        )
-    }
-    
-    private func controller(controller: NSFetchedResultsController, sectionIndexTitleForSectionName sectionName: String?) -> String? {
-        
-        return self.sectionIndexTransformer(sectionName: sectionName)
-    }
-}
-
-
-// MARK: - FetchedResultsControllerHandler
-
-private protocol FetchedResultsControllerHandler: class {
-    
-    func controller(controller: NSFetchedResultsController, didChangeObject anObject: AnyObject, atIndexPath indexPath: NSIndexPath?, forChangeType type: NSFetchedResultsChangeType, newIndexPath: NSIndexPath?)
-    
-    func controller(controller: NSFetchedResultsController, didChangeSection sectionInfo: NSFetchedResultsSectionInfo, atIndex sectionIndex: Int, forChangeType type: NSFetchedResultsChangeType)
-    
-    func controllerWillChangeContent(controller: NSFetchedResultsController)
-    
-    func controllerDidChangeContent(controller: NSFetchedResultsController)
-    
-    func controller(controller: NSFetchedResultsController, sectionIndexTitleForSectionName sectionName: String?) -> String?
-}
-
-
-// MARK: - FetchedResultsControllerDelegate
-
-private final class FetchedResultsControllerDelegate: NSObject, NSFetchedResultsControllerDelegate {
-    
-    // MARK: NSFetchedResultsControllerDelegate
-    
-    @objc dynamic func controllerWillChangeContent(controller: NSFetchedResultsController) {
-        
-        self.handler?.controllerWillChangeContent(controller)
-    }
-    
-    @objc dynamic func controllerDidChangeContent(controller: NSFetchedResultsController) {
-        
-        self.handler?.controllerDidChangeContent(controller)
-    }
-    
-    @objc dynamic func controller(controller: NSFetchedResultsController, didChangeObject anObject: NSManagedObject, atIndexPath indexPath: NSIndexPath?, forChangeType type: NSFetchedResultsChangeType, newIndexPath: NSIndexPath?) {
-        
-        self.handler?.controller(controller, didChangeObject: anObject, atIndexPath: indexPath, forChangeType: type, newIndexPath: newIndexPath)
-    }
-    
-    @objc dynamic func controller(controller: NSFetchedResultsController, didChangeSection sectionInfo: NSFetchedResultsSectionInfo, atIndex sectionIndex: Int, forChangeType type: NSFetchedResultsChangeType) {
-        
-        self.handler?.controller(controller, didChangeSection: sectionInfo, atIndex: sectionIndex, forChangeType: type)
-    }
-    
-    @objc dynamic func controller(controller: NSFetchedResultsController, sectionIndexTitleForSectionName sectionName: String) -> String? {
-        
-        return self.handler?.controller(controller, sectionIndexTitleForSectionName: sectionName)
-    }
-    
-    
-    // MARK: Private
-    
-    weak var handler: FetchedResultsControllerHandler?
-    weak var fetchedResultsController: NSFetchedResultsController? {
-        
-        didSet {
-            
-            oldValue?.delegate = nil
-            self.fetchedResultsController?.delegate = self
-        }
-    }
-    
-    deinit {
-        
-        self.fetchedResultsController?.delegate = nil
-    }
-}
-
-
-private let ListMonitorWillChangeListNotification = "ListMonitorWillChangeListNotification"
-private let ListMonitorDidChangeListNotification = "ListMonitorDidChangeListNotification"
-
-private let ListMonitorDidInsertObjectNotification = "ListMonitorDidInsertObjectNotification"
-private let ListMonitorDidDeleteObjectNotification = "ListMonitorDidDeleteObjectNotification"
-private let ListMonitorDidUpdateObjectNotification = "ListMonitorDidUpdateObjectNotification"
-private let ListMonitorDidMoveObjectNotification = "ListMonitorDidMoveObjectNotification"
-
-private let ListMonitorDidInsertSectionNotification = "ListMonitorDidInsertSectionNotification"
-private let ListMonitorDidDeleteSectionNotification = "ListMonitorDidDeleteSectionNotification"
-
-private let UserInfoKeyObject = "UserInfoKeyObject"
-private let UserInfoKeyIndexPath = "UserInfoKeyIndexPath"
-private let UserInfoKeyNewIndexPath = "UserInfoKeyNewIndexPath"
-
-private let UserInfoKeySectionInfo = "UserInfoKeySectionInfo"
-private let UserInfoKeySectionIndex = "UserInfoKeySectionIndex"
-
-private struct NotificationKey {
-    
-    static var willChangeList: Void?
-    static var didChangeList: Void?
-    
-    static var didInsertObject: Void?
-    static var didDeleteObject: Void?
-    static var didUpdateObject: Void?
-    static var didMoveObject: Void?
-    
-    static var didInsertSection: Void?
-    static var didDeleteSection: Void?
-}

CoreStore/Observing/ListObserver.swift

@@ -1,147 +0,0 @@
-//
-//  ListObserver.swift
-//  CoreStore
-//
-//  Copyright (c) 2015 John Rommel Estropia
-//
-//  Permission is hereby granted, free of charge, to any person obtaining a copy
-//  of this software and associated documentation files (the "Software"), to deal
-//  in the Software without restriction, including without limitation the rights
-//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-//  copies of the Software, and to permit persons to whom the Software is
-//  furnished to do so, subject to the following conditions:
-//
-//  The above copyright notice and this permission notice shall be included in all
-//  copies or substantial portions of the Software.
-//
-//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-//  SOFTWARE.
-//
-
-import Foundation
-import CoreData
-
-
-// MARK: - ListObserver
-
-/**
-Implement the `ListObserver` protocol to observe changes to a list of `NSManagedObject`s. `ListObserver`s may register themselves to a `ListMonitor`'s `addObserver(_:)` method:
-
-    let monitor = CoreStore.monitorList(
-        From(MyPersonEntity),
-        OrderBy(.Ascending("lastName"))
-    )
-    monitor.addObserver(self)
-*/
-public protocol ListObserver: class {
-    
-    /**
-    The `NSManagedObject` type for the observed list
-    */
-    typealias EntityType: NSManagedObject
-    
-    /**
-    Handles processing just before a change to the observed list occurs
-    
-    - parameter monitor: the `ListMonitor` monitoring the list being observed
-    */
-    func listMonitorWillChange(monitor: ListMonitor<EntityType>)
-    
-    /**
-    Handles processing right after a change to the observed list occurs
-    
-    - parameter monitor: the `ListMonitor` monitoring the object being observed
-    */
-    func listMonitorDidChange(monitor: ListMonitor<EntityType>)
-}
-
-
-// MARK: - ListObjectObserver
-
-/**
-Implement the `ListObjectObserver` protocol to observe detailed changes to a list's object. `ListObjectObserver`s may register themselves to a `ListMonitor`'s `addObserver(_:)` method:
-
-    let monitor = CoreStore.monitorList(
-        From(MyPersonEntity),
-        OrderBy(.Ascending("lastName"))
-    )
-    monitor.addObserver(self)
-*/
-public protocol ListObjectObserver: ListObserver {
-    
-    /**
-    Notifies that an object was inserted to the specified `NSIndexPath` in the list
-    
-    - parameter monitor: the `ListMonitor` monitoring the list being observed
-    - parameter object: the entity type for the inserted object
-    - parameter indexPath: the new `NSIndexPath` for the inserted object
-    */
-    func listMonitor(monitor: ListMonitor<EntityType>, didInsertObject object: EntityType, toIndexPath indexPath: NSIndexPath)
-    
-    /**
-    Notifies that an object was deleted from the specified `NSIndexPath` in the list
-    
-    - parameter monitor: the `ListMonitor` monitoring the list being observed
-    - parameter object: the entity type for the deleted object
-    - parameter indexPath: the `NSIndexPath` for the deleted object
-    */
-    func listMonitor(monitor: ListMonitor<EntityType>, didDeleteObject object: EntityType, fromIndexPath indexPath: NSIndexPath)
-    
-    /**
-    Notifies that an object at the specified `NSIndexPath` was updated
-    
-    - parameter monitor: the `ListMonitor` monitoring the list being observed
-    - parameter object: the entity type for the updated object
-    - parameter indexPath: the `NSIndexPath` for the updated object
-    */
-    func listMonitor(monitor: ListMonitor<EntityType>, didUpdateObject object: EntityType, atIndexPath indexPath: NSIndexPath)
-    
-    /**
-    Notifies that an object's index changed
-    
-    - parameter monitor: the `ListMonitor` monitoring the list being observed
-    - parameter object: the entity type for the moved object
-    - parameter fromIndexPath: the previous `NSIndexPath` for the moved object
-    - parameter toIndexPath: the new `NSIndexPath` for the moved object
-    */
-    func listMonitor(monitor: ListMonitor<EntityType>, didMoveObject object: EntityType, fromIndexPath: NSIndexPath, toIndexPath: NSIndexPath)
-}
-
-
-// MARK: - ListSectionObserver
-
-/**
-Implement the `ListSectionObserver` protocol to observe changes to a list's section info. `ListSectionObserver`s may register themselves to a `ListMonitor`'s `addObserver(_:)` method:
-
-    let monitor = CoreStore.monitorSectionedList(
-        From(MyPersonEntity),
-        SectionBy("age") { "Age \($0)" },
-        OrderBy(.Ascending("lastName"))
-    )
-    monitor.addObserver(self)
-*/
-public protocol ListSectionObserver: ListObjectObserver {
-    
-    /**
-    Notifies that a section was inserted at the specified index
-    
-    - parameter monitor: the `ListMonitor` monitoring the list being observed
-    - parameter sectionInfo: the `NSFetchedResultsSectionInfo` for the inserted section
-    - parameter sectionIndex: the new section index for the new section
-    */
-    func listMonitor(monitor: ListMonitor<EntityType>, didInsertSection sectionInfo: NSFetchedResultsSectionInfo, toSectionIndex sectionIndex: Int)
-    
-    /**
-    Notifies that a section was inserted at the specified index
-    
-    - parameter monitor: the `ListMonitor` monitoring the list being observed
-    - parameter sectionInfo: the `NSFetchedResultsSectionInfo` for the deleted section
-    - parameter sectionIndex: the previous section index for the deleted section
-    */
-    func listMonitor(monitor: ListMonitor<EntityType>, didDeleteSection sectionInfo: NSFetchedResultsSectionInfo, fromSectionIndex sectionIndex: Int)
-}

CoreStore/Observing/ObjectMonitor.swift

@@ -1,346 +0,0 @@
-//
-//  ObjectMonitor.swift
-//  CoreStore
-//
-//  Copyright (c) 2015 John Rommel Estropia
-//
-//  Permission is hereby granted, free of charge, to any person obtaining a copy
-//  of this software and associated documentation files (the "Software"), to deal
-//  in the Software without restriction, including without limitation the rights
-//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-//  copies of the Software, and to permit persons to whom the Software is
-//  furnished to do so, subject to the following conditions:
-//
-//  The above copyright notice and this permission notice shall be included in all
-//  copies or substantial portions of the Software.
-//
-//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-//  SOFTWARE.
-//
-
-import Foundation
-import CoreData
-import GCDKit
-
-
-private let ObjectMonitorWillChangeObjectNotification = "ObjectMonitorWillChangeObjectNotification"
-private let ObjectMonitorDidDeleteObjectNotification = "ObjectMonitorDidDeleteObjectNotification"
-private let ObjectMonitorDidUpdateObjectNotification = "ObjectMonitorDidUpdateObjectNotification"
-
-private let UserInfoKeyObject = "UserInfoKeyObject"
-
-private struct NotificationKey {
-    
-    static var willChangeObject: Void?
-    static var didDeleteObject: Void?
-    static var didUpdateObject: Void?
-}
-
-
-// MARK: - ObjectMonitor
-
-/**
-The `ObjectMonitor` monitors changes to a single `NSManagedObject` instance. Observers that implement the `ObjectObserver` protocol may then register themselves to the `ObjectMonitor`'s `addObserver(_:)` method:
-
-    let monitor = CoreStore.monitorObject(object)
-    monitor.addObserver(self)
-
-The created `ObjectMonitor` instance needs to be held on (retained) for as long as the object needs to be observed.
-
-Observers registered via `addObserver(_:)` are not retained. `ObjectMonitor` only keeps a `weak` reference to all observers, thus keeping itself free from retain-cycles.
-*/
-public final class ObjectMonitor<T: NSManagedObject> {
-    
-    // MARK: Public
-    
-    /**
-    Returns the `NSManagedObject` instance being observed, or `nil` if the object was already deleted.
-    */
-    public var object: T? {
-        
-        return self.fetchedResultsController.fetchedObjects?.first as? T
-    }
-    
-    /**
-    Returns `true` if the `NSManagedObject` instance being observed still exists, or `false` if the object was already deleted.
-    */
-    public var isObjectDeleted: Bool {
-        
-        return self.object?.managedObjectContext == nil
-    }
-    
-    /**
-    Registers an `ObjectObserver` to be notified when changes to the receiver's `object` are made.
-    
-    To prevent retain-cycles, `ObjectMonitor` only keeps `weak` references to its observers.
-    
-    For thread safety, this method needs to be called from the main thread. An assertion failure will occur (on debug builds only) if called from any thread other than the main thread.
-    
-    Calling `addObserver(_:)` multiple times on the same observer is safe, as `ObjectMonitor` unregisters previous notifications to the observer before re-registering them.
-    
-    - parameter observer: an `ObjectObserver` to send change notifications to
-    */
-    public func addObserver<U: ObjectObserver where U.EntityType == T>(observer: U) {
-        
-        CoreStore.assert(
-            NSThread.isMainThread(),
-            "Attempted to add an observer of type \(typeName(observer)) outside the main thread."
-        )
-        
-        self.removeObserver(observer)
-        
-        self.registerChangeNotification(
-            &NotificationKey.willChangeObject,
-            name: ObjectMonitorWillChangeObjectNotification,
-            toObserver: observer,
-            callback: { [weak observer] (monitor) -> Void in
-                
-                if let object = monitor.object, let observer = observer {
-                    
-                    observer.objectMonitor(monitor, willUpdateObject: object)
-                }
-            }
-        )
-        self.registerObjectNotification(
-            &NotificationKey.didDeleteObject,
-            name: ObjectMonitorDidDeleteObjectNotification,
-            toObserver: observer,
-            callback: { [weak observer] (monitor, object) -> Void in
-                
-                if let observer = observer {
-                    
-                    observer.objectMonitor(monitor, didDeleteObject: object)
-                }
-            }
-        )
-        self.registerObjectNotification(
-            &NotificationKey.didUpdateObject,
-            name: ObjectMonitorDidUpdateObjectNotification,
-            toObserver: observer,
-            callback: { [weak self, weak observer] (monitor, object) -> Void in
-                
-                if let strongSelf = self, let observer = observer {
-                    
-                    let previousCommitedAttributes = strongSelf.lastCommittedAttributes
-                    let currentCommitedAttributes = object.committedValuesForKeys(nil) as! [String: NSObject]
-                    
-                    let changedKeys = currentCommitedAttributes.keys.reduce(Set<String>()) { (var changedKeys, key) -> Set<String> in
-                        
-                        if previousCommitedAttributes[key] != currentCommitedAttributes[key] {
-                            
-                            changedKeys.insert(key)
-                        }
-                        return changedKeys
-                    }
-                    
-                    strongSelf.lastCommittedAttributes = currentCommitedAttributes
-                    observer.objectMonitor(
-                        monitor,
-                        didUpdateObject: object,
-                        changedPersistentKeys: changedKeys
-                    )
-                }
-            }
-        )
-    }
-    
-    /**
-    Unregisters an `ObjectObserver` from receiving notifications for changes to the receiver's `object`.
-    
-    For thread safety, this method needs to be called from the main thread. An assertion failure will occur (on debug builds only) if called from any thread other than the main thread.
-    
-    - parameter observer: an `ObjectObserver` to unregister notifications to
-    */
-    public func removeObserver<U: ObjectObserver where U.EntityType == T>(observer: U) {
-        
-        CoreStore.assert(
-            NSThread.isMainThread(),
-            "Attempted to remove an observer of type \(typeName(observer)) outside the main thread."
-        )
-        
-        let nilValue: AnyObject? = nil
-        setAssociatedRetainedObject(nilValue, forKey: &NotificationKey.willChangeObject, inObject: observer)
-        setAssociatedRetainedObject(nilValue, forKey: &NotificationKey.didDeleteObject, inObject: observer)
-        setAssociatedRetainedObject(nilValue, forKey: &NotificationKey.didUpdateObject, inObject: observer)
-    }
-    
-    
-    // MARK: Internal
-    
-    internal init(dataStack: DataStack, object: T) {
-        
-        let context = dataStack.mainContext
-        
-        let fetchRequest = NSFetchRequest()
-        fetchRequest.entity = object.entity
-        
-        fetchRequest.fetchLimit = 1
-        fetchRequest.resultType = .ManagedObjectResultType
-        fetchRequest.sortDescriptors = []
-        
-        let originalObjectID = object.objectID
-        Where("SELF", isEqualTo: originalObjectID).applyToFetchRequest(fetchRequest)
-        
-        let fetchedResultsController = NSFetchedResultsController(
-            fetchRequest: fetchRequest,
-            managedObjectContext: context,
-            sectionNameKeyPath: nil,
-            cacheName: nil
-        )
-        
-        let fetchedResultsControllerDelegate = FetchedResultsControllerDelegate()
-        
-        self.originalObjectID = originalObjectID
-        self.fetchedResultsController = fetchedResultsController
-        self.fetchedResultsControllerDelegate = fetchedResultsControllerDelegate
-        self.parentStack = dataStack
-        
-        fetchedResultsControllerDelegate.handler = self
-        fetchedResultsControllerDelegate.fetchedResultsController = fetchedResultsController
-        try! fetchedResultsController.performFetch()
-        
-        self.lastCommittedAttributes = (self.object?.committedValuesForKeys(nil) as? [String: NSObject]) ?? [:]
-    }
-    
-    
-    // MARK: Private
-    
-    private let originalObjectID: NSManagedObjectID
-    private let fetchedResultsController: NSFetchedResultsController
-    private let fetchedResultsControllerDelegate: FetchedResultsControllerDelegate
-    private var lastCommittedAttributes = [String: NSObject]()
-    private weak var parentStack: DataStack?
-    
-    private func registerChangeNotification(notificationKey: UnsafePointer<Void>, name: String, toObserver observer: AnyObject, callback: (monitor: ObjectMonitor<T>) -> Void) {
-        
-        setAssociatedRetainedObject(
-            NotificationObserver(
-                notificationName: name,
-                object: self,
-                closure: { [weak self] (note) -> Void in
-                    
-                    if let strongSelf = self {
-                        
-                        callback(monitor: strongSelf)
-                    }
-                }
-            ),
-            forKey: notificationKey,
-            inObject: observer
-        )
-    }
-    
-    private func registerObjectNotification(notificationKey: UnsafePointer<Void>, name: String, toObserver observer: AnyObject, callback: (monitor: ObjectMonitor<T>, object: T) -> Void) {
-        
-        setAssociatedRetainedObject(
-            NotificationObserver(
-                notificationName: name,
-                object: self,
-                closure: { [weak self] (note) -> Void in
-                    
-                    if let strongSelf = self,
-                        let userInfo = note.userInfo,
-                        let object = userInfo[UserInfoKeyObject] as? T {
-                            
-                            callback(
-                                monitor: strongSelf,
-                                object: object
-                            )
-                    }
-                }
-            ),
-            forKey: notificationKey,
-            inObject: observer
-        )
-    }
-}
-
-
-// MARK: - ObjectMonitor: FetchedResultsControllerHandler
-
-extension ObjectMonitor: FetchedResultsControllerHandler {
-    
-    // MARK: FetchedResultsControllerHandler
-    
-    private func controller(controller: NSFetchedResultsController, didChangeObject anObject: AnyObject, atIndexPath indexPath: NSIndexPath?, forChangeType type: NSFetchedResultsChangeType, newIndexPath: NSIndexPath?) {
-        
-        switch type {
-            
-        case .Delete:
-            NSNotificationCenter.defaultCenter().postNotificationName(
-                ObjectMonitorDidDeleteObjectNotification,
-                object: self,
-                userInfo: [UserInfoKeyObject: anObject]
-            )
-            
-        case .Update:
-            NSNotificationCenter.defaultCenter().postNotificationName(
-                ObjectMonitorDidUpdateObjectNotification,
-                object: self,
-                userInfo: [UserInfoKeyObject: anObject]
-            )
-            
-        default:
-            break
-        }
-    }
-    
-    private func controllerWillChangeContent(controller: NSFetchedResultsController) {
-        
-        NSNotificationCenter.defaultCenter().postNotificationName(
-            ObjectMonitorWillChangeObjectNotification,
-            object: self
-        )
-    }
-}
-
-
-// MARK: - FetchedResultsControllerHandler
-
-private protocol FetchedResultsControllerHandler: class {
-    
-    func controller(controller: NSFetchedResultsController, didChangeObject anObject: AnyObject, atIndexPath indexPath: NSIndexPath?, forChangeType type: NSFetchedResultsChangeType, newIndexPath: NSIndexPath?)
-    
-    func controllerWillChangeContent(controller: NSFetchedResultsController)
-}
-
-
-// MARK: - FetchedResultsControllerDelegate
-
-private final class FetchedResultsControllerDelegate: NSObject, NSFetchedResultsControllerDelegate {
-    
-    // MARK: NSFetchedResultsControllerDelegate
-    
-    @objc dynamic func controllerWillChangeContent(controller: NSFetchedResultsController) {
-        
-        self.handler?.controllerWillChangeContent(controller)
-    }
-    
-    @objc dynamic func controller(controller: NSFetchedResultsController, didChangeObject anObject: NSManagedObject, atIndexPath indexPath: NSIndexPath?, forChangeType type: NSFetchedResultsChangeType, newIndexPath: NSIndexPath?) {
-        
-        self.handler?.controller(controller, didChangeObject: anObject, atIndexPath: indexPath, forChangeType: type, newIndexPath: newIndexPath)
-    }
-    
-    
-    // MARK: Private
-    
-    weak var handler: FetchedResultsControllerHandler?
-    weak var fetchedResultsController: NSFetchedResultsController? {
-        
-        didSet {
-            
-            oldValue?.delegate = nil
-            self.fetchedResultsController?.delegate = self
-        }
-    }
-    
-    deinit {
-        
-        self.fetchedResultsController?.delegate = nil
-    }
-}

CoreStore/Observing/ObjectObserver.swift

@@ -1,69 +0,0 @@
-//
-//  ObjectObserver.swift
-//  CoreStore
-//
-//  Copyright (c) 2015 John Rommel Estropia
-//
-//  Permission is hereby granted, free of charge, to any person obtaining a copy
-//  of this software and associated documentation files (the "Software"), to deal
-//  in the Software without restriction, including without limitation the rights
-//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-//  copies of the Software, and to permit persons to whom the Software is
-//  furnished to do so, subject to the following conditions:
-//
-//  The above copyright notice and this permission notice shall be included in all
-//  copies or substantial portions of the Software.
-//
-//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-//  SOFTWARE.
-//
-
-import Foundation
-import CoreData
-
-
-// MARK: - ObjectObserver
-
-/**
-Implement the `ObjectObserver` protocol to observe changes to a single `NSManagedObject` instance. `ObjectObserver`s may register themselves to a `ObjectMonitor`'s `addObserver(_:)` method:
-
-    let monitor = CoreStore.monitorObject(object)
-    monitor.addObserver(self)
-*/
-public protocol ObjectObserver: class {
-    
-    /**
-    The `NSManagedObject` type for the observed object
-    */
-    typealias EntityType: NSManagedObject
-    
-    /**
-    Handles processing just before a change to the observed `object` occurs
-    
-    - parameter monitor: the `ObjectMonitor` monitoring the object being observed
-    - parameter object: the `NSManagedObject` instance being observed
-    */
-    func objectMonitor(monitor: ObjectMonitor<EntityType>, willUpdateObject object: EntityType)
-    
-    /**
-    Handles processing right after a change to the observed `object` occurs
-    
-    - parameter monitor: the `ObjectMonitor` monitoring the object being observed
-    - parameter object: the `NSManagedObject` instance being observed
-    - parameter changedPersistentKeys: a `Set` of key paths for the attributes that were changed. Note that `changedPersistentKeys` only contains keys for attributes/relationships present in the persistent store, thus transient properties will not be reported.
-    */
-    func objectMonitor(monitor: ObjectMonitor<EntityType>, didUpdateObject object: EntityType, changedPersistentKeys: Set<KeyPath>)
-    
-    /**
-    Handles processing right after `object` is deleted
-    
-    - parameter monitor: the `ObjectMonitor` monitoring the object being observed
-    - parameter object: the `NSManagedObject` instance being observed
-    */
-    func objectMonitor(monitor: ObjectMonitor<EntityType>, didDeleteObject object: EntityType)
-}

CoreStore/Saving and Processing/AsynchronousDataTransaction.swift

@@ -1,248 +0,0 @@
-//
-//  AsynchronousDataTransaction.swift
-//  CoreStore
-//
-//  Copyright (c) 2015 John Rommel Estropia
-//
-//  Permission is hereby granted, free of charge, to any person obtaining a copy
-//  of this software and associated documentation files (the "Software"), to deal
-//  in the Software without restriction, including without limitation the rights
-//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-//  copies of the Software, and to permit persons to whom the Software is
-//  furnished to do so, subject to the following conditions:
-//
-//  The above copyright notice and this permission notice shall be included in all
-//  copies or substantial portions of the Software.
-//
-//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-//  SOFTWARE.
-//
-
-import Foundation
-import CoreData
-import GCDKit
-
-
-// MARK: - AsynchronousDataTransaction
-
-/**
-The `AsynchronousDataTransaction` provides an interface for `NSManagedObject` creates, updates, and deletes. A transaction object should typically be only used from within a transaction block initiated from `DataStack.beginAsynchronous(_:)`, or from `CoreStore.beginAsynchronous(_:)`.
-*/
-public final class AsynchronousDataTransaction: BaseDataTransaction {
-    
-    // MARK: Public
-    
-    /**
-    Saves the transaction changes. This method should not be used after the `commit()` method was already called once.
-    
-    - parameter completion: the block executed after the save completes. Success or failure is reported by the `SaveResult` argument of the block.
-    */
-    public func commit(completion: (result: SaveResult) -> Void = { _ in }) {
-        
-        CoreStore.assert(
-            self.transactionQueue.isCurrentExecutionContext(),
-            "Attempted to commit a \(typeName(self)) outside its designated queue."
-        )
-        CoreStore.assert(
-            !self.isCommitted,
-            "Attempted to commit a \(typeName(self)) more than once."
-        )
-        
-        self.isCommitted = true
-        let semaphore = GCDSemaphore(0)
-        self.context.saveAsynchronouslyWithCompletion { (result) -> Void in
-            
-            self.result = result
-            completion(result: result)
-            semaphore.signal()
-        }
-        semaphore.wait()
-    }
-    
-    /**
-    Begins a child transaction synchronously where NSManagedObject creates, updates, and deletes can be made. This method should not be used after the `commit()` method was already called once.
-    
-    - parameter closure: the block where creates, updates, and deletes can be made to the transaction. Transaction blocks are executed serially in a background queue, and all changes are made from a concurrent `NSManagedObjectContext`.
-    - returns: a `SaveResult` value indicating success or failure, or `nil` if the transaction was not comitted synchronously
-    */
-    public func beginSynchronous(closure: (transaction: SynchronousDataTransaction) -> Void) -> SaveResult? {
-        
-        CoreStore.assert(
-            self.transactionQueue.isCurrentExecutionContext(),
-            "Attempted to begin a child transaction from a \(typeName(self)) outside its designated queue."
-        )
-        CoreStore.assert(
-            !self.isCommitted,
-            "Attempted to begin a child transaction from an already committed \(typeName(self))."
-        )
-        
-        return SynchronousDataTransaction(
-            mainContext: self.context,
-            queue: self.childTransactionQueue,
-            closure: closure).performAndWait()
-    }
-    
-    
-    // MARK: BaseDataTransaction
-    
-    /**
-    Creates a new `NSManagedObject` with the specified entity type.
-    
-    - parameter into: the `Into` clause indicating the destination `NSManagedObject` entity type and the destination configuration
-    - returns: a new `NSManagedObject` instance of the specified entity type.
-    */
-    public override func create<T: NSManagedObject>(into: Into<T>) -> T {
-        
-        CoreStore.assert(
-            !self.isCommitted,
-            "Attempted to create an entity of type \(typeName(T)) from an already committed \(typeName(self))."
-        )
-        
-        return super.create(into)
-    }
-    
-    /**
-    Returns an editable proxy of a specified `NSManagedObject`. This method should not be used after the `commit()` method was already called once.
-    
-    - parameter object: the `NSManagedObject` type to be edited
-    - returns: an editable proxy for the specified `NSManagedObject`.
-    */
-    public override func edit<T: NSManagedObject>(object: T?) -> T? {
-        
-        CoreStore.assert(
-            !self.isCommitted,
-            "Attempted to update an entity of type \(typeName(object)) from an already committed \(typeName(self))."
-        )
-        
-        return super.edit(object)
-    }
-    
-    /**
-    Returns an editable proxy of the object with the specified `NSManagedObjectID`. This method should not be used after the `commit()` method was already called once.
-    
-    - parameter into: an `Into` clause specifying the entity type
-    - parameter objectID: the `NSManagedObjectID` for the object to be edited
-    - returns: an editable proxy for the specified `NSManagedObject`.
-    */
-    public override func edit<T: NSManagedObject>(into: Into<T>, _ objectID: NSManagedObjectID) -> T? {
-        
-        CoreStore.assert(
-            !self.isCommitted,
-            "Attempted to update an entity of type \(typeName(T)) from an already committed \(typeName(self))."
-        )
-        
-        return super.edit(into, objectID)
-    }
-    
-    /**
-    Deletes a specified `NSManagedObject`. This method should not be used after the `commit()` method was already called once.
-    
-    - parameter object: the `NSManagedObject` type to be deleted
-    */
-    public override func delete(object: NSManagedObject?) {
-        
-        CoreStore.assert(
-            !self.isCommitted,
-            "Attempted to delete an entity of type \(typeName(object)) from an already committed \(typeName(self))."
-        )
-        
-        super.delete(object)
-    }
-    
-    /**
-    Deletes the specified `NSManagedObject`s.
-    
-    - parameter object1: the `NSManagedObject` type to be deleted
-    - parameter object2: another `NSManagedObject` type to be deleted
-    - parameter objects: other `NSManagedObject`s type to be deleted
-    */
-    public override func delete(object1: NSManagedObject?, _ object2: NSManagedObject?, _ objects: NSManagedObject?...) {
-        
-        CoreStore.assert(
-            !self.isCommitted,
-            "Attempted to delete an entities from an already committed \(typeName(self))."
-        )
-        
-        super.delete([object1, object2] + objects)
-    }
-    
-    /**
-    Deletes the specified `NSManagedObject`s.
-    
-    - parameter objects: the `NSManagedObject`s type to be deleted
-    */
-    public override func delete(objects: [NSManagedObject?]) {
-        
-        CoreStore.assert(
-            !self.isCommitted,
-            "Attempted to delete an entities from an already committed \(typeName(self))."
-        )
-        
-        super.delete(objects)
-    }
-    
-    /**
-    Rolls back the transaction by resetting the `NSManagedObjectContext`. After calling this method, all `NSManagedObjects` fetched within the transaction will become invalid. This method should not be used after the `commit()` method was already called once.
-    */
-    public override func rollback() {
-        
-        CoreStore.assert(
-            !self.isCommitted,
-            "Attempted to rollback an already committed \(typeName(self))."
-        )
-        
-        super.rollback()
-    }
-    
-    
-    // MARK: Internal
-    
-    internal init(mainContext: NSManagedObjectContext, queue: GCDQueue, closure: (transaction: AsynchronousDataTransaction) -> Void) {
-        
-        self.closure = closure
-        
-        super.init(mainContext: mainContext, queue: queue)
-    }
-    
-    internal func perform() {
-        
-        self.transactionQueue.async {
-            
-            self.closure(transaction: self)
-            if !self.isCommitted && self.hasChanges {
-                
-                CoreStore.log(
-                    .Warning,
-                    message: "The closure for the \(typeName(self)) completed without being committed. All changes made within the transaction were discarded."
-                )
-            }
-        }
-    }
-    
-    internal func performAndWait() -> SaveResult? {
-        
-        self.transactionQueue.sync {
-            
-            self.closure(transaction: self)
-            
-            if !self.isCommitted && self.hasChanges {
-                
-                CoreStore.log(
-                    .Warning,
-                    message: "The closure for the \(typeName(self)) completed without being committed. All changes made within the transaction were discarded."
-                )
-            }
-        }
-        return self.result
-    }
-    
-    
-    // MARK: Private
-    
-    private let closure: (transaction: AsynchronousDataTransaction) -> Void
-}

CoreStore/Saving and Processing/BaseDataTransaction.swift

@@ -1,228 +0,0 @@
-//
-//  BaseDataTransaction.swift
-//  CoreStore
-//
-//  Copyright (c) 2014 John Rommel Estropia
-//
-//  Permission is hereby granted, free of charge, to any person obtaining a copy
-//  of this software and associated documentation files (the "Software"), to deal
-//  in the Software without restriction, including without limitation the rights
-//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-//  copies of the Software, and to permit persons to whom the Software is
-//  furnished to do so, subject to the following conditions:
-//
-//  The above copyright notice and this permission notice shall be included in all
-//  copies or substantial portions of the Software.
-//
-//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-//  SOFTWARE.
-//
-
-import Foundation
-import CoreData
-import GCDKit
-
-
-// MARK: - BaseDataTransaction
-
-/**
-The `BaseDataTransaction` is an abstract interface for `NSManagedObject` creates, updates, and deletes. All `BaseDataTransaction` subclasses manage a private `NSManagedObjectContext` which are direct children of the `NSPersistentStoreCoordinator`'s root `NSManagedObjectContext`. This means that all updates are saved first to the persistent store, and then propagated up to the read-only `NSManagedObjectContext`.
-*/
-public /*abstract*/ class BaseDataTransaction {
-    
-    // MARK: Object management
-    
-    /**
-    Indicates if the transaction has pending changes
-    */
-    public var hasChanges: Bool {
-        
-        return self.context.hasChanges
-    }
-    
-    /**
-    Creates a new `NSManagedObject` with the specified entity type.
-    
-    - parameter into: the `Into` clause indicating the destination `NSManagedObject` entity type and the destination configuration
-    - returns: a new `NSManagedObject` instance of the specified entity type.
-    */
-    public func create<T: NSManagedObject>(into: Into<T>) -> T {
-        
-        CoreStore.assert(
-            self.bypassesQueueing || self.transactionQueue.isCurrentExecutionContext(),
-            "Attempted to create an entity of type \(typeName(T)) outside its designated queue."
-        )
-        
-        let context = self.context
-        let entityClass = (into.entityClass as! NSManagedObject.Type)
-        if into.inferStoreIfPossible {
-            
-            switch context.parentStack!.persistentStoreForEntityClass(entityClass, configuration: nil, inferStoreIfPossible: true) {
-                
-            case (let persistentStore?, _):
-                let object = entityClass.createInContext(context) as! T
-                context.assignObject(object, toPersistentStore: persistentStore)
-                return object
-                
-            case (.None, true):
-                fatalError("Attempted to create an entity of type \(typeName(entityClass)) with ambiguous destination persistent store, but the configuration name was not specified.")
-                
-            default:
-                fatalError("Attempted to create an entity of type \(typeName(entityClass)), but a destination persistent store containing the entity type could not be found.")
-            }
-        }
-        else {
-            
-            switch context.parentStack!.persistentStoreForEntityClass(entityClass, configuration: into.configuration, inferStoreIfPossible: false) {
-                
-            case (let persistentStore?, _):
-                let object = entityClass.createInContext(context) as! T
-                context.assignObject(object, toPersistentStore: persistentStore)
-                return object
-                
-            default:
-                if let configuration = into.configuration {
-                    
-                    fatalError("Attempted to create an entity of type \(typeName(entityClass)) into the configuration \"\(configuration)\", which it doesn't belong to.")
-                }
-                else {
-                    
-                    fatalError("Attempted to create an entity of type \(typeName(entityClass)) into the default configuration, which it doesn't belong to.")
-                }
-            }
-        }
-    }
-    
-    /**
-    Returns an editable proxy of a specified `NSManagedObject`.
-    
-    - parameter object: the `NSManagedObject` type to be edited
-    - returns: an editable proxy for the specified `NSManagedObject`.
-    */
-    public func edit<T: NSManagedObject>(object: T?) -> T? {
-        
-        CoreStore.assert(
-            self.bypassesQueueing || self.transactionQueue.isCurrentExecutionContext(),
-            "Attempted to update an entity of type \(typeName(object)) outside its designated queue."
-        )
-        
-        return object?.inContext(self.context)
-    }
-    
-    /**
-    Returns an editable proxy of the object with the specified `NSManagedObjectID`. 
-    
-    - parameter into: an `Into` clause specifying the entity type
-    - parameter objectID: the `NSManagedObjectID` for the object to be edited
-    - returns: an editable proxy for the specified `NSManagedObject`.
-    */
-    public func edit<T: NSManagedObject>(into: Into<T>, _ objectID: NSManagedObjectID) -> T? {
-        
-        CoreStore.assert(
-            self.bypassesQueueing || self.transactionQueue.isCurrentExecutionContext(),
-            "Attempted to update an entity of type \(typeName(T)) outside its designated queue."
-        )
-        CoreStore.assert(
-            into.inferStoreIfPossible
-                || (into.configuration ?? Into.defaultConfigurationName) == objectID.persistentStore?.configurationName,
-            "Attempted to update an entity of type \(typeName(T)) but the specified persistent store do not match the `NSManagedObjectID`."
-        )
-        
-        return (into.entityClass as! NSManagedObject.Type).inContext(self.context, withObjectID: objectID) as? T
-    }
-    
-    /**
-    Deletes a specified `NSManagedObject`.
-    
-    - parameter object: the `NSManagedObject` to be deleted
-    */
-    public func delete(object: NSManagedObject?) {
-        
-        CoreStore.assert(
-            self.bypassesQueueing || self.transactionQueue.isCurrentExecutionContext(),
-            "Attempted to delete an entity outside its designated queue."
-        )
-        
-        object?.inContext(self.context)?.deleteFromContext()
-    }
-    
-    /**
-    Deletes the specified `NSManagedObject`s.
-    
-    - parameter object1: the `NSManagedObject` to be deleted
-    - parameter object2: another `NSManagedObject` to be deleted
-    - parameter objects: other `NSManagedObject`s to be deleted
-    */
-    public func delete(object1: NSManagedObject?, _ object2: NSManagedObject?, _ objects: NSManagedObject?...) {
-        
-        self.delete([object1, object2] + objects)
-    }
-    
-    /**
-    Deletes the specified `NSManagedObject`s.
-    
-    - parameter objects: the `NSManagedObject`s to be deleted
-    */
-    public func delete(objects: [NSManagedObject?]) {
-        
-        CoreStore.assert(
-            self.bypassesQueueing || self.transactionQueue.isCurrentExecutionContext(),
-            "Attempted to delete entities outside their designated queue."
-        )
-        
-        let context = self.context
-        for object in objects {
-            
-            object?.inContext(context)?.deleteFromContext()
-        }
-    }
-    
-    // MARK: Saving changes
-    
-    /**
-    Rolls back the transaction by resetting the `NSManagedObjectContext`. After calling this method, all `NSManagedObjects` fetched within the transaction will become invalid.
-    */
-    public func rollback() {
-        
-        CoreStore.assert(
-            self.bypassesQueueing || self.transactionQueue.isCurrentExecutionContext(),
-            "Attempted to rollback a \(typeName(self)) outside its designated queue."
-        )
-        
-        self.context.reset()
-    }
-    
-    
-    // MARK: Internal
-    
-    internal let context: NSManagedObjectContext
-    internal let transactionQueue: GCDQueue
-    internal let childTransactionQueue: GCDQueue = .createSerial("com.corestore.datastack.childtransactionqueue")
-    
-    internal var isCommitted = false
-    internal var result: SaveResult?
-    
-    internal init(mainContext: NSManagedObjectContext, queue: GCDQueue) {
-        
-        self.transactionQueue = queue
-        
-        let context = mainContext.temporaryContextInTransactionWithConcurrencyType(
-            queue == .Main
-                ? .MainQueueConcurrencyType
-                : .PrivateQueueConcurrencyType
-        )
-        self.context = context
-        
-        context.parentTransaction = self
-    }
-    
-    internal var bypassesQueueing: Bool {
-        
-        return false
-    }
-}

CoreStore/Saving and Processing/CoreStore+Transaction.swift

@@ -1,65 +0,0 @@
-//
-//  CoreStore+Transaction.swift
-//  CoreStore
-//
-//  Copyright (c) 2015 John Rommel Estropia
-//
-//  Permission is hereby granted, free of charge, to any person obtaining a copy
-//  of this software and associated documentation files (the "Software"), to deal
-//  in the Software without restriction, including without limitation the rights
-//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-//  copies of the Software, and to permit persons to whom the Software is
-//  furnished to do so, subject to the following conditions:
-//
-//  The above copyright notice and this permission notice shall be included in all
-//  copies or substantial portions of the Software.
-//
-//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-//  SOFTWARE.
-//
-
-import Foundation
-
-
-// MARK: - CoreStore
-
-public extension CoreStore {
-    
-    // MARK: Public
-    
-    /**
-    Using the `defaultStack`, begins a transaction asynchronously where `NSManagedObject` creates, updates, and deletes can be made.
-    
-    - parameter closure: the block where creates, updates, and deletes can be made to the transaction. Transaction blocks are executed serially in a background queue, and all changes are made from a concurrent `NSManagedObjectContext`.
-    */
-    public static func beginAsynchronous(closure: (transaction: AsynchronousDataTransaction) -> Void) {
-        
-        self.defaultStack.beginAsynchronous(closure)
-    }
-    
-    /**
-    Using the `defaultStack`, begins a transaction asynchronously where `NSManagedObject` creates, updates, and deletes can be made.
-    
-    - parameter closure: the block where creates, updates, and deletes can be made to the transaction. Transaction blocks are executed serially in a background queue, and all changes are made from a concurrent `NSManagedObjectContext`.
-    - returns: a `SaveResult` value indicating success or failure, or `nil` if the transaction was not comitted synchronously
-    */
-    public static func beginSynchronous(closure: (transaction: SynchronousDataTransaction) -> Void) -> SaveResult? {
-        
-        return self.defaultStack.beginSynchronous(closure)
-    }
-    
-    /**
-    Using the `defaultStack`, begins a non-contiguous transaction where `NSManagedObject` creates, updates, and deletes can be made. This is useful for making temporary changes, such as partially filled forms. A detached transaction object should typically be only used from the main queue.
-    
-    - returns: a `DetachedDataTransaction` instance where creates, updates, and deletes can be made.
-    */
-    public static func beginDetached() -> DetachedDataTransaction {
-        
-        return self.defaultStack.beginDetached()
-    }
-}

CoreStore/Saving and Processing/DataStack+Transaction.swift

@@ -1,79 +0,0 @@
-//
-//  DataStack+Transaction.swift
-//  CoreStore
-//
-//  Copyright (c) 2015 John Rommel Estropia
-//
-//  Permission is hereby granted, free of charge, to any person obtaining a copy
-//  of this software and associated documentation files (the "Software"), to deal
-//  in the Software without restriction, including without limitation the rights
-//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-//  copies of the Software, and to permit persons to whom the Software is
-//  furnished to do so, subject to the following conditions:
-//
-//  The above copyright notice and this permission notice shall be included in all
-//  copies or substantial portions of the Software.
-//
-//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-//  SOFTWARE.
-//
-
-import Foundation
-import CoreData
-import GCDKit
-
-
-// MARK: - DataStack
-
-public extension DataStack {
-    
-    // MARK: Public
-    
-    /**
-    Begins a transaction asynchronously where `NSManagedObject` creates, updates, and deletes can be made.
-    
-    - parameter closure: the block where creates, updates, and deletes can be made to the transaction. Transaction blocks are executed serially in a background queue, and all changes are made from a concurrent `NSManagedObjectContext`.
-    */
-    public func beginAsynchronous(closure: (transaction: AsynchronousDataTransaction) -> Void) {
-        
-        AsynchronousDataTransaction(
-            mainContext: self.rootSavingContext,
-            queue: self.childTransactionQueue,
-            closure: closure).perform()
-    }
-    
-    /**
-    Begins a transaction synchronously where `NSManagedObject` creates, updates, and deletes can be made.
-    
-    - parameter closure: the block where creates, updates, and deletes can be made to the transaction. Transaction blocks are executed serially in a background queue, and all changes are made from a concurrent `NSManagedObjectContext`.
-    - returns: a `SaveResult` value indicating success or failure, or `nil` if the transaction was not comitted synchronously
-    */
-    public func beginSynchronous(closure: (transaction: SynchronousDataTransaction) -> Void) -> SaveResult? {
-        
-        return SynchronousDataTransaction(
-            mainContext: self.rootSavingContext,
-            queue: self.childTransactionQueue,
-            closure: closure).performAndWait()
-    }
-    
-    /**
-    Begins a non-contiguous transaction where `NSManagedObject` creates, updates, and deletes can be made. This is useful for making temporary changes, such as partially filled forms.
-    
-    - returns: a `DetachedDataTransaction` instance where creates, updates, and deletes can be made.
-    */
-    public func beginDetached() -> DetachedDataTransaction {
-        
-        return DetachedDataTransaction(
-            mainContext: self.rootSavingContext,
-            queue: .createSerial(
-                "com.coreStore.dataStack.detachedTransactionQueue",
-                targetQueue: .UserInitiated
-            )
-        )
-    }
-}

CoreStore/Saving and Processing/DetachedDataTransaction.swift

@@ -1,86 +0,0 @@
-//
-//  DetachedDataTransaction.swift
-//  CoreStore
-//
-//  Copyright (c) 2015 John Rommel Estropia
-//
-//  Permission is hereby granted, free of charge, to any person obtaining a copy
-//  of this software and associated documentation files (the "Software"), to deal
-//  in the Software without restriction, including without limitation the rights
-//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-//  copies of the Software, and to permit persons to whom the Software is
-//  furnished to do so, subject to the following conditions:
-//
-//  The above copyright notice and this permission notice shall be included in all
-//  copies or substantial portions of the Software.
-//
-//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-//  SOFTWARE.
-//
-
-import Foundation
-import GCDKit
-
-
-// MARK: - DetachedDataTransaction
-
-/**
-The `DetachedDataTransaction` provides an interface for non-contiguous `NSManagedObject` creates, updates, and deletes. This is useful for making temporary changes, such as partially filled forms. A detached transaction object should typically be only used from the main queue.
-*/
-public final class DetachedDataTransaction: BaseDataTransaction {
-    
-    // MARK: Public
-    
-    /**
-    Returns the `NSManagedObjectContext` for this detached transaction. Use only for cases where external frameworks need an `NSManagedObjectContext` instance to work with.
-    
-    Note that it is the developer's responsibility to ensure the following:
-    - that the `DetachedDataTransaction` that owns this context should be strongly referenced and prevented from being deallocated during the context's lifetime
-    - that all saves will be done either through the `DetachedDataTransaction`'s `commit(...)` method, or by calling `save()` manually on the context, its parent, and all other ancestor contexts if there are any.
-    */
-    public var internalContext: NSManagedObjectContext {
-        
-        return self.context
-    }
-    
-    /**
-    Saves the transaction changes asynchronously. For a `DetachedDataTransaction`, multiple commits are allowed, although it is the developer's responsibility to ensure a reasonable leeway to prevent blocking the main thread.
-    
-    - parameter completion: the block executed after the save completes. Success or failure is reported by the `SaveResult` argument of the block.
-    */
-    public func commit(completion: (result: SaveResult) -> Void) {
-        
-        self.context.saveAsynchronouslyWithCompletion { (result) -> Void in
-            
-            self.result = result
-            completion(result: result)
-        }
-    }
-    
-    /**
-    Begins a child transaction where `NSManagedObject` creates, updates, and deletes can be made. This is useful for making temporary changes, such as partially filled forms.
-    
-    - returns: a `DetachedDataTransaction` instance where creates, updates, and deletes can be made.
-    */
-    public func beginDetached() -> DetachedDataTransaction {
-        
-        return DetachedDataTransaction(
-            mainContext: self.context,
-            queue: self.transactionQueue
-        )
-    }
-    
-    
-    // MARK: Internal
-    
-    internal override var bypassesQueueing: Bool {
-        
-        return true
-    }
-}
-

CoreStore/Saving and Processing/Into.swift

@@ -1,145 +0,0 @@
-//
-//  Into.swift
-//  CoreStore
-//
-//  Copyright (c) 2014 John Rommel Estropia
-//
-//  Permission is hereby granted, free of charge, to any person obtaining a copy
-//  of this software and associated documentation files (the "Software"), to deal
-//  in the Software without restriction, including without limitation the rights
-//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-//  copies of the Software, and to permit persons to whom the Software is
-//  furnished to do so, subject to the following conditions:
-//
-//  The above copyright notice and this permission notice shall be included in all
-//  copies or substantial portions of the Software.
-//
-//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-//  SOFTWARE.
-//
-
-import Foundation
-import CoreData
-
-
-// MARK: - Into
-
-/**
-A `Into` clause contains the destination entity and destination persistent store for a `create(...)` method. A common usage is to just indicate the entity:
-
-let person = transaction.create(Into(MyPersonEntity))
-
-For cases where multiple `NSPersistentStore`s contain the same entity, the destination configuration's name needs to be specified as well:
-
-let person = transaction.create(Into<MyPersonEntity>("Configuration1"))
-
-This helps the `NSManagedObjectContext` to determine which
-*/
-public struct Into<T: NSManagedObject> {
-    
-    // MARK: Public
-    
-    /**
-    Initializes an `Into` clause.
-    Sample Usage:
-    
-    let person = transaction.create(Into<MyPersonEntity>())
-    */
-    public init(){
-        
-        self.configuration = nil
-        self.inferStoreIfPossible = true
-        self.entityClass = T.self
-    }
-    
-    /**
-    Initializes an `Into` clause with the specified entity type.
-    Sample Usage:
-    
-    let person = transaction.create(Into(MyPersonEntity))
-    
-    - parameter entity: the `NSManagedObject` type to be created
-    */
-    public init(_ entity: T.Type) {
-        
-        self.configuration = nil
-        self.inferStoreIfPossible = true
-        self.entityClass = entity
-    }
-    
-    /**
-    Initializes an `Into` clause with the specified entity class.
-    
-    - parameter entityClass: the `NSManagedObject` class type to be created
-    */
-    public init(_ entityClass: AnyClass) {
-        
-        self.configuration = nil
-        self.inferStoreIfPossible = true
-        self.entityClass = entityClass
-    }
-    
-    /**
-    Initializes an `Into` clause with the specified configuration.
-    Sample Usage:
-    
-    let person = transaction.create(Into<MyPersonEntity>("Configuration1"))
-    
-    - parameter configuration: the `NSPersistentStore` configuration name to associate the object to. This parameter is required if multiple configurations contain the created `NSManagedObject`'s entity type. Set to `nil` to use the default configuration.
-    */
-    public init(_ configuration: String?) {
-        
-        self.configuration = configuration
-        self.inferStoreIfPossible = false
-        self.entityClass = T.self
-    }
-    
-    /**
-    Initializes an `Into` clause with the specified entity type and configuration.
-    Sample Usage:
-    
-    let person = transaction.create(Into(MyPersonEntity.self, "Configuration1"))
-    
-    - parameter entity: the `NSManagedObject` type to be created
-    - parameter configuration: the `NSPersistentStore` configuration name to associate the object to. This parameter is required if multiple configurations contain the created `NSManagedObject`'s entity type. Set to `nil` to use the default configuration.
-    */
-    public init(_ entity: T.Type, _ configuration: String?) {
-        
-        self.configuration = configuration
-        self.inferStoreIfPossible = false
-        self.entityClass = entity
-    }
-    
-    /**
-    Initializes an `Into` clause with the specified entity class and configuration.
-    Sample Usage:
-    
-    let person = transaction.create(Into(MyPersonEntity.self, "Configuration1"))
-    
-    - parameter entityClass: the `NSManagedObject` class type to be created
-    - parameter configuration: the `NSPersistentStore` configuration name to associate the object to. This parameter is required if multiple configurations contain the created `NSManagedObject`'s entity type. Set to `nil` to use the default configuration.
-    */
-    public init(_ entityClass: AnyClass, _ configuration: String?) {
-        
-        self.configuration = configuration
-        self.inferStoreIfPossible = false
-        self.entityClass = entityClass
-    }
-    
-    
-    // MARK: Internal
-    
-    internal static var defaultConfigurationName: String {
-        
-        return "PF_DEFAULT_CONFIGURATION_NAME"
-    }
-    
-    internal let entityClass: AnyClass
-    internal let configuration: String?
-    internal let inferStoreIfPossible: Bool
-}

CoreStore/Saving and Processing/SaveResult.swift

@@ -1,110 +0,0 @@
-//
-//  SaveResult.swift
-//  CoreStore
-//
-//  Copyright (c) 2014 John Rommel Estropia
-//
-//  Permission is hereby granted, free of charge, to any person obtaining a copy
-//  of this software and associated documentation files (the "Software"), to deal
-//  in the Software without restriction, including without limitation the rights
-//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-//  copies of the Software, and to permit persons to whom the Software is
-//  furnished to do so, subject to the following conditions:
-//
-//  The above copyright notice and this permission notice shall be included in all
-//  copies or substantial portions of the Software.
-//
-//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-//  SOFTWARE.
-//
-
-import Foundation
-
-
-// MARK: - SaveResult
-
-/**
-The `SaveResult` indicates the result of a `commit(...)` for a transaction.
-The `SaveResult` can be treated as a boolean:
-
-    CoreStore.beginAsynchronous { transaction in
-        // ...
-        let result = transaction.commit()
-        if result {
-            // succeeded
-        }
-        else {
-            // failed
-        }
-    }
-
-or as an `enum`, where the resulting associated object can also be inspected:
-
-    CoreStore.beginAsynchronous { transaction in
-        // ...
-        let result = transaction.commit()
-        switch result {
-        case .Success(let hasChanges):
-            // hasChanges indicates if there were changes or not
-        case .Failure(let error):
-            // error is the NSError instance for the failure
-        }
-    }
-```
-*/
-public enum SaveResult {
-    
-    // MARK: Public
-    
-    /**
-    `SaveResult.Success` indicates that the `commit()` for the transaction succeeded, either because the save succeeded or because there were no changes to save. The associated value `hasChanges` indicates if there were saved changes or not.
-    */
-    case Success(hasChanges: Bool)
-    
-    /**
-    `SaveResult.Failure` indicates that the `commit()` for the transaction failed. The associated object for this value is the related `NSError` instance.
-    */
-    case Failure(NSError)
-    
-    
-    // MARK: Internal
-    
-    internal init(hasChanges: Bool) {
-        
-        self = .Success(hasChanges: hasChanges)
-    }
-    
-    internal init(_ error: NSError) {
-        
-        self = .Failure(error)
-    }
-    
-    internal init(_ errorCode: CoreStoreErrorCode) {
-        
-        self.init(errorCode, userInfo: nil)
-    }
-    
-    internal init(_ errorCode: CoreStoreErrorCode, userInfo: [NSObject: AnyObject]?) {
-        
-        self.init(NSError(coreStoreErrorCode: errorCode, userInfo: userInfo))
-    }
-}
-
-
-// MARK: - SaveResult: BooleanType
-
-extension SaveResult: BooleanType {
-    
-    public var boolValue: Bool {
-        
-        switch self {
-        case .Success: return true
-        case .Failure: return false
-        }
-    }
-}

CoreStore/Saving and Processing/SynchronousDataTransaction.swift

@@ -1,224 +0,0 @@
-//
-//  SynchronousDataTransaction.swift
-//  CoreStore
-//
-//  Copyright (c) 2015 John Rommel Estropia
-//
-//  Permission is hereby granted, free of charge, to any person obtaining a copy
-//  of this software and associated documentation files (the "Software"), to deal
-//  in the Software without restriction, including without limitation the rights
-//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-//  copies of the Software, and to permit persons to whom the Software is
-//  furnished to do so, subject to the following conditions:
-//
-//  The above copyright notice and this permission notice shall be included in all
-//  copies or substantial portions of the Software.
-//
-//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-//  SOFTWARE.
-//
-
-import Foundation
-import CoreData
-import GCDKit
-
-
-// MARK: - SynchronousDataTransaction
-
-/**
-The `SynchronousDataTransaction` provides an interface for `NSManagedObject` creates, updates, and deletes. A transaction object should typically be only used from within a transaction block initiated from `DataStack.beginSynchronous(_:)`, or from `CoreStore.beginSynchronous(_:)`.
-*/
-public final class SynchronousDataTransaction: BaseDataTransaction {
-    
-    // MARK: Public
-    
-    /**
-    Saves the transaction changes and waits for completion synchronously. This method should not be used after the `commit()` method was already called once.
-    */
-    public func commit() {
-        
-        CoreStore.assert(
-            self.transactionQueue.isCurrentExecutionContext(),
-            "Attempted to commit a \(typeName(self)) outside its designated queue."
-        )
-        CoreStore.assert(
-            !self.isCommitted,
-            "Attempted to commit a \(typeName(self)) more than once."
-        )
-        
-        self.isCommitted = true
-        self.result = self.context.saveSynchronously()
-    }
-    
-    /**
-    Begins a child transaction synchronously where `NSManagedObject` creates, updates, and deletes can be made. This method should not be used after the `commit()` method was already called once.
-    
-    - parameter closure: the block where creates, updates, and deletes can be made to the transaction. Transaction blocks are executed serially in a background queue, and all changes are made from a concurrent `NSManagedObjectContext`.
-    - returns: a `SaveResult` value indicating success or failure, or `nil` if the transaction was not comitted synchronously
-    */
-    public func beginSynchronous(closure: (transaction: SynchronousDataTransaction) -> Void) -> SaveResult? {
-        
-        CoreStore.assert(
-            self.transactionQueue.isCurrentExecutionContext(),
-            "Attempted to begin a child transaction from a \(typeName(self)) outside its designated queue."
-        )
-        CoreStore.assert(
-            !self.isCommitted,
-            "Attempted to begin a child transaction from an already committed \(typeName(self))."
-        )
-        
-        return SynchronousDataTransaction(
-            mainContext: self.context,
-            queue: self.childTransactionQueue,
-            closure: closure).performAndWait()
-    }
-    
-    
-    // MARK: BaseDataTransaction
-    
-    /**
-    Creates a new `NSManagedObject` with the specified entity type.
-    
-    - parameter into: the `Into` clause indicating the destination `NSManagedObject` entity type and the destination configuration
-    - returns: a new `NSManagedObject` instance of the specified entity type.
-    */
-    public override func create<T: NSManagedObject>(into: Into<T>) -> T {
-        
-        CoreStore.assert(
-            !self.isCommitted,
-            "Attempted to create an entity of type \(typeName(T)) from an already committed \(typeName(self))."
-        )
-        
-        return super.create(into)
-    }
-    
-    /**
-    Returns an editable proxy of a specified `NSManagedObject`. This method should not be used after the `commit()` method was already called once.
-    
-    - parameter object: the `NSManagedObject` type to be edited
-    - returns: an editable proxy for the specified `NSManagedObject`.
-    */
-    public override func edit<T: NSManagedObject>(object: T?) -> T? {
-        
-        CoreStore.assert(
-            !self.isCommitted,
-            "Attempted to update an entity of type \(typeName(object)) from an already committed \(typeName(self))."
-        )
-        
-        return super.edit(object)
-    }
-    
-    /**
-    Returns an editable proxy of the object with the specified `NSManagedObjectID`. This method should not be used after the `commit()` method was already called once.
-    
-    - parameter into: an `Into` clause specifying the entity type
-    - parameter objectID: the `NSManagedObjectID` for the object to be edited
-    - returns: an editable proxy for the specified `NSManagedObject`.
-    */
-    public override func edit<T: NSManagedObject>(into: Into<T>, _ objectID: NSManagedObjectID) -> T? {
-        
-        CoreStore.assert(
-            !self.isCommitted,
-            "Attempted to update an entity of type \(typeName(T)) from an already committed \(typeName(self))."
-        )
-        
-        return super.edit(into, objectID)
-    }
-    
-    /**
-    Deletes a specified `NSManagedObject`. This method should not be used after the `commit()` method was already called once.
-    
-    - parameter object: the `NSManagedObject` type to be deleted
-    */
-    public override func delete(object: NSManagedObject?) {
-        
-        CoreStore.assert(
-            !self.isCommitted,
-            "Attempted to delete an entity of type \(typeName(object)) from an already committed \(typeName(self))."
-        )
-        
-        super.delete(object)
-    }
-    
-    /**
-    Deletes the specified `NSManagedObject`s.
-    
-    - parameter object1: the `NSManagedObject` to be deleted
-    - parameter object2: another `NSManagedObject` to be deleted
-    - parameter objects: other `NSManagedObject`s to be deleted
-    */
-    public override func delete(object1: NSManagedObject?, _ object2: NSManagedObject?, _ objects: NSManagedObject?...) {
-        
-        CoreStore.assert(
-            !self.isCommitted,
-            "Attempted to delete an entities from an already committed \(typeName(self))."
-        )
-        
-        super.delete([object1, object2] + objects)
-    }
-    
-    /**
-    Deletes the specified `NSManagedObject`s.
-    
-    - parameter objects: the `NSManagedObject`s to be deleted
-    */
-    public override func delete(objects: [NSManagedObject?]) {
-        
-        CoreStore.assert(
-            !self.isCommitted,
-            "Attempted to delete an entities from an already committed \(typeName(self))."
-        )
-        
-        super.delete(objects)
-    }
-    
-    /**
-    Rolls back the transaction by resetting the `NSManagedObjectContext`. After calling this method, all `NSManagedObjects` fetched within the transaction will become invalid. This method should not be used after the `commit()` method was already called once.
-    */
-    public override func rollback() {
-        
-        CoreStore.assert(
-            !self.isCommitted,
-            "Attempted to rollback an already committed \(typeName(self))."
-        )
-        
-        super.rollback()
-    }
-    
-    
-    // MARK: Internal
-    
-    internal func performAndWait() -> SaveResult? {
-        
-        self.transactionQueue.sync {
-            
-            self.closure(transaction: self)
-            
-            if !self.isCommitted && self.hasChanges {
-                
-                CoreStore.log(
-                    .Warning,
-                    message: "The closure for the \(typeName(self)) completed without being committed. All changes made within the transaction were discarded."
-                )
-            }
-        }
-        return self.result
-    }
-    
-    internal init(mainContext: NSManagedObjectContext, queue: GCDQueue, closure: (transaction: SynchronousDataTransaction) -> Void) {
-        
-        self.closure = closure
-        
-        super.init(mainContext: mainContext, queue: queue)
-    }
-    
-    
-    // MARK: Private
-    
-    private let closure: (transaction: SynchronousDataTransaction) -> Void
-}

CoreStore/Setting Up/CoreStore+Setup.swift

@@ -1,79 +0,0 @@
-//
-//  CoreStore+Setup.swift
-//  CoreStore
-//
-//  Copyright (c) 2015 John Rommel Estropia
-//
-//  Permission is hereby granted, free of charge, to any person obtaining a copy
-//  of this software and associated documentation files (the "Software"), to deal
-//  in the Software without restriction, including without limitation the rights
-//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-//  copies of the Software, and to permit persons to whom the Software is
-//  furnished to do so, subject to the following conditions:
-//
-//  The above copyright notice and this permission notice shall be included in all
-//  copies or substantial portions of the Software.
-//
-//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-//  SOFTWARE.
-//
-
-import Foundation
-import CoreData
-import GCDKit
-
-
-// MARK: - CoreStore
-
-public extension CoreStore {
-    
-    /**
-    Adds an in-memory store to the `defaultStack`.
-    
-    - parameter configuration: an optional configuration name from the model file. If not specified, defaults to `nil`.
-    - returns: the `NSPersistentStore` added to the stack.
-    */
-    public static func addInMemoryStoreAndWait(configuration configuration: String? = nil) throws -> NSPersistentStore {
-        
-        return try self.defaultStack.addInMemoryStoreAndWait(configuration: configuration)
-    }
-    
-    /**
-    Adds to the `defaultStack` an SQLite store from the given SQLite file name.
-    
-    - parameter fileName: the local filename for the SQLite persistent store in the "Application Support" directory. A new SQLite file will be created if it does not exist.
-    - parameter configuration: an optional configuration name from the model file. If not specified, defaults to nil.
-    - parameter resetStoreOnModelMismatch: Set to true to delete the store on model mismatch; or set to false to throw exceptions on failure instead. Typically should only be set to true when debugging, or if the persistent store can be recreated easily. If not specified, defaults to false
-    - returns: the `NSPersistentStore` added to the stack.
-    */
-    public static func addSQLiteStoreAndWait(fileName fileName: String, configuration: String? = nil, resetStoreOnModelMismatch: Bool = false) throws -> NSPersistentStore {
-        
-        return try self.defaultStack.addSQLiteStoreAndWait(
-            fileName: fileName,
-            configuration: configuration,
-            resetStoreOnModelMismatch: resetStoreOnModelMismatch
-        )
-    }
-    
-    /**
-    Adds to the `defaultStack` an SQLite store from the given SQLite file URL.
-    
-    - parameter fileURL: the local file URL for the SQLite persistent store. A new SQLite file will be created if it does not exist. If not specified, defaults to a file URL pointing to a "<Application name>.sqlite" file in the "Application Support" directory.
-    - parameter configuration: an optional configuration name from the model file. If not specified, defaults to nil.
-    - parameter resetStoreOnModelMismatch: Set to true to delete the store on model mismatch; or set to false to throw exceptions on failure instead. Typically should only be set to true when debugging, or if the persistent store can be recreated easily. If not specified, defaults to false.
-    - returns: the `NSPersistentStore` added to the stack.
-    */
-    public static func addSQLiteStoreAndWait(fileURL: NSURL = defaultSQLiteStoreURL, configuration: String? = nil, resetStoreOnModelMismatch: Bool = false) throws -> NSPersistentStore {
-        
-        return try self.defaultStack.addSQLiteStoreAndWait(
-            fileURL: fileURL,
-            configuration: configuration,
-            resetStoreOnModelMismatch: resetStoreOnModelMismatch
-        )
-    }
-}

CoreStore/Setting Up/DataStack.swift

@@ -1,360 +0,0 @@
-//
-//  DataStack.swift
-//  CoreStore
-//
-//  Copyright (c) 2014 John Rommel Estropia
-//
-//  Permission is hereby granted, free of charge, to any person obtaining a copy
-//  of this software and associated documentation files (the "Software"), to deal
-//  in the Software without restriction, including without limitation the rights
-//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-//  copies of the Software, and to permit persons to whom the Software is
-//  furnished to do so, subject to the following conditions:
-//
-//  The above copyright notice and this permission notice shall be included in all
-//  copies or substantial portions of the Software.
-//
-//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-//  SOFTWARE.
-//
-
-import Foundation
-import CoreData
-import GCDKit
-
-
-internal let applicationSupportDirectory = NSFileManager.defaultManager().URLsForDirectory(.ApplicationSupportDirectory, inDomains: .UserDomainMask).first!
-
-internal let applicationName = (NSBundle.mainBundle().objectForInfoDictionaryKey("CFBundleName") as? String) ?? "CoreData"
-
-internal let defaultSQLiteStoreURL = applicationSupportDirectory.URLByAppendingPathComponent(applicationName, isDirectory: false).URLByAppendingPathExtension("sqlite")
-
-
-// MARK: - DataStack
-
-/**
-The `DataStack` encapsulates the data model for the Core Data stack. Each `DataStack` can have multiple data stores, usually specified as a "Configuration" in the model editor. Behind the scenes, the DataStack manages its own `NSPersistentStoreCoordinator`, a root `NSManagedObjectContext` for disk saves, and a shared `NSManagedObjectContext` designed as a read-only model interface for `NSManagedObjects`.
-*/
-public final class DataStack {
-    
-    // MARK: Public
-    
-    /**
-    Initializes a `DataStack` from an `NSManagedObjectModel`.
-    
-    - parameter modelName: the name of the (.xcdatamodeld) model file. If not specified, the application name will be used.
-    - parameter bundle: an optional bundle to load models from. If not specified, the main bundle will be used.
-    - parameter migrationChain: the `MigrationChain` that indicates the sequence of model versions to be used as the order for incremental migration. If not specified, will default to a non-migrating data stack.
-    */
-    public required init(modelName: String = applicationName, bundle: NSBundle = NSBundle.mainBundle(), migrationChain: MigrationChain = nil) {
-        
-        CoreStore.assert(
-            migrationChain.valid,
-            "Invalid migration chain passed to the \(typeName(DataStack)). Check that the model versions' order is correct and that no repetitions or ambiguities exist."
-        )
-        
-        let model = NSManagedObjectModel.fromBundle(
-            bundle,
-            modelName: modelName,
-            modelVersionHints: migrationChain.leafVersions
-        )
-        
-        self.coordinator = NSPersistentStoreCoordinator(managedObjectModel: model)
-        self.rootSavingContext = NSManagedObjectContext.rootSavingContextForCoordinator(self.coordinator)
-        self.mainContext = NSManagedObjectContext.mainContextForRootContext(self.rootSavingContext)
-        self.model = model
-        self.migrationChain = migrationChain
-        
-        self.rootSavingContext.parentStack = self
-    }
-    
-    /**
-    Returns the `DataStack`'s model version. The version string is the same as the name of the version-specific .xcdatamodeld file.
-    */
-    public var modelVersion: String {
-        
-        return self.model.currentModelVersion!
-    }
-    
-    /**
-    Adds an in-memory store to the stack.
-    
-    - parameter configuration: an optional configuration name from the model file. If not specified, defaults to `nil`.
-    - returns: the `NSPersistentStore` added to the stack.
-    */
-    public func addInMemoryStoreAndWait(configuration configuration: String? = nil) throws -> NSPersistentStore {
-        
-        let coordinator = self.coordinator;
-        
-        var store: NSPersistentStore?
-        var storeError: NSError?
-        coordinator.performBlockAndWait {
-            
-            do {
-                
-                store = try coordinator.addPersistentStoreWithType(
-                    NSInMemoryStoreType,
-                    configuration: configuration,
-                    URL: nil,
-                    options: nil
-                )
-            }
-            catch {
-                
-                storeError = error as NSError
-            }
-        }
-        
-        if let store = store {
-            
-            self.updateMetadataForPersistentStore(store)
-            return store
-        }
-        
-        let error = storeError ?? NSError(coreStoreErrorCode: .UnknownError)
-        CoreStore.handleError(
-            error,
-            "Failed to add in-memory \(typeName(NSPersistentStore)) to the stack."
-        )
-        throw error
-    }
-    
-    /**
-    Adds to the stack an SQLite store from the given SQLite file name.
-    
-    - parameter fileName: the local filename for the SQLite persistent store in the "Application Support" directory. A new SQLite file will be created if it does not exist. Note that if you have multiple configurations, you will need to specify a different `fileName` explicitly for each of them.
-    - parameter configuration: an optional configuration name from the model file. If not specified, defaults to `nil`, the "Default" configuration. Note that if you have multiple configurations, you will need to specify a different `fileName` explicitly for each of them.
-    - parameter resetStoreOnModelMismatch: Set to true to delete the store on model mismatch; or set to false to throw exceptions on failure instead. Typically should only be set to true when debugging, or if the persistent store can be recreated easily. If not specified, defaults to false
-    - returns: the `NSPersistentStore` added to the stack.
-    */
-    public func addSQLiteStoreAndWait(fileName fileName: String, configuration: String? = nil, resetStoreOnModelMismatch: Bool = false) throws -> NSPersistentStore {
-        
-        return try self.addSQLiteStoreAndWait(
-            fileURL: applicationSupportDirectory.URLByAppendingPathComponent(
-                fileName,
-                isDirectory: false
-            ),
-            configuration: configuration,
-            resetStoreOnModelMismatch: resetStoreOnModelMismatch
-        )
-    }
-    
-    /**
-    Adds to the stack an SQLite store from the given SQLite file URL.
-    
-    - parameter fileURL: the local file URL for the SQLite persistent store. A new SQLite file will be created if it does not exist. If not specified, defaults to a file URL pointing to a "<Application name>.sqlite" file in the "Application Support" directory. Note that if you have multiple configurations, you will need to specify a different `fileURL` explicitly for each of them.
-    - parameter configuration: an optional configuration name from the model file. If not specified, defaults to `nil`, the "Default" configuration. Note that if you have multiple configurations, you will need to specify a different `fileURL` explicitly for each of them.
-    - parameter resetStoreOnModelMismatch: Set to true to delete the store on model mismatch; or set to false to throw exceptions on failure instead. Typically should only be set to true when debugging, or if the persistent store can be recreated easily. If not specified, defaults to false.
-    - returns: the `NSPersistentStore` added to the stack.
-    */
-    public func addSQLiteStoreAndWait(fileURL fileURL: NSURL = defaultSQLiteStoreURL, configuration: String? = nil, resetStoreOnModelMismatch: Bool = false) throws -> NSPersistentStore {
-        
-        CoreStore.assert(
-            fileURL.fileURL,
-            "The specified file URL for the SQLite store is invalid: \"\(fileURL)\""
-        )
-        
-        let coordinator = self.coordinator;
-        if let store = coordinator.persistentStoreForURL(fileURL) {
-            
-            if store.type == NSSQLiteStoreType
-                && store.configurationName == (configuration ?? Into.defaultConfigurationName) {
-                    
-                    return store
-            }
-            
-            let error = NSError(coreStoreErrorCode: .DifferentPersistentStoreExistsAtURL)
-            CoreStore.handleError(
-                error,
-                "Failed to add SQLite \(typeName(NSPersistentStore)) at \"\(fileURL)\" because a different \(typeName(NSPersistentStore)) at that URL already exists."
-            )
-            
-            throw error
-        }
-        
-        let fileManager = NSFileManager.defaultManager()
-        do {
-            
-            try fileManager.createDirectoryAtURL(
-                fileURL.URLByDeletingLastPathComponent!,
-                withIntermediateDirectories: true,
-                attributes: nil
-            )
-        }
-        catch _ { }
-        
-        var store: NSPersistentStore?
-        var storeError: NSError?
-        coordinator.performBlockAndWait {
-            
-            do {
-                
-                store = try coordinator.addPersistentStoreWithType(
-                    NSSQLiteStoreType,
-                    configuration: configuration,
-                    URL: fileURL,
-                    options: [NSSQLitePragmasOption: ["journal_mode": "WAL"]]
-                )
-            }
-            catch {
-                
-                storeError = error as NSError
-            }
-        }
-        
-        if let store = store {
-            
-            self.updateMetadataForPersistentStore(store)
-            return store
-        }
-        
-        if let error = storeError
-            where (resetStoreOnModelMismatch && error.isCoreDataMigrationError) {
-                
-                fileManager.removeSQLiteStoreAtURL(fileURL)
-                
-                var store: NSPersistentStore?
-                coordinator.performBlockAndWait {
-                    
-                    do {
-                        
-                        store = try coordinator.addPersistentStoreWithType(
-                            NSSQLiteStoreType,
-                            configuration: configuration,
-                            URL: fileURL,
-                            options: [NSSQLitePragmasOption: ["journal_mode": "WAL"]]
-                        )
-                    }
-                    catch {
-                        
-                        storeError = error as NSError
-                    }
-                }
-                
-                if let store = store {
-                    
-                    self.updateMetadataForPersistentStore(store)
-                    return store
-                }
-        }
-        
-        let error = storeError ?? NSError(coreStoreErrorCode: .UnknownError)
-        CoreStore.handleError(
-            error,
-            "Failed to add SQLite \(typeName(NSPersistentStore)) at \"\(fileURL)\"."
-        )
-        throw error
-    }
-    
-    
-    // MARK: Internal
-    
-    internal let coordinator: NSPersistentStoreCoordinator
-    internal let rootSavingContext: NSManagedObjectContext
-    internal let mainContext: NSManagedObjectContext
-    internal let model: NSManagedObjectModel
-    internal let migrationChain: MigrationChain
-    internal let childTransactionQueue: GCDQueue = .createSerial("com.coreStore.dataStack.childTransactionQueue")
-    internal let migrationQueue: NSOperationQueue = {
-        
-        let migrationQueue = NSOperationQueue()
-        migrationQueue.maxConcurrentOperationCount = 1
-        migrationQueue.name = "com.coreStore.migrationOperationQueue"
-        migrationQueue.qualityOfService = .Utility
-        migrationQueue.underlyingQueue = dispatch_queue_create("com.coreStore.migrationQueue", DISPATCH_QUEUE_SERIAL)
-        return migrationQueue
-    }()
-    
-    internal func entityNameForEntityClass(entityClass: AnyClass) -> String? {
-        
-        return self.model.entityNameForClass(entityClass)
-    }
-    
-    internal func persistentStoresForEntityClass(entityClass: AnyClass) -> [NSPersistentStore]? {
-        
-        var returnValue: [NSPersistentStore]? = nil
-        self.storeMetadataUpdateQueue.barrierSync {
-            
-            returnValue = self.entityConfigurationsMapping[NSStringFromClass(entityClass)]?.map {
-                
-                return self.configurationStoreMapping[$0]!
-            } ?? []
-        }
-        return returnValue
-    }
-    
-    internal func persistentStoreForEntityClass(entityClass: AnyClass, configuration: String?, inferStoreIfPossible: Bool) -> (store: NSPersistentStore?, isAmbiguous: Bool) {
-        
-        var returnValue: (store: NSPersistentStore?, isAmbiguous: Bool) = (store: nil, isAmbiguous: false)
-        self.storeMetadataUpdateQueue.barrierSync {
-            
-            let configurationsForEntity = self.entityConfigurationsMapping[NSStringFromClass(entityClass)] ?? []
-            if let configuration = configuration {
-                
-                if configurationsForEntity.contains(configuration) {
-                    
-                    returnValue = (store: self.configurationStoreMapping[configuration], isAmbiguous: false)
-                    return
-                }
-                else if !inferStoreIfPossible {
-                    
-                    return
-                }
-            }
-            
-            switch configurationsForEntity.count {
-                
-            case 0:
-                return
-                
-            case 1 where inferStoreIfPossible:
-                returnValue = (store: self.configurationStoreMapping[configurationsForEntity.first!], isAmbiguous: false)
-                
-            default:
-                returnValue = (store: nil, isAmbiguous: true)
-            }
-        }
-        return returnValue
-    }
-    
-    internal func updateMetadataForPersistentStore(persistentStore: NSPersistentStore) {
-        
-        self.storeMetadataUpdateQueue.barrierAsync {
-            
-            let configurationName = persistentStore.configurationName
-            self.configurationStoreMapping[configurationName] = persistentStore
-            for entityDescription in (self.coordinator.managedObjectModel.entitiesForConfiguration(configurationName) ?? []) {
-                
-                if self.entityConfigurationsMapping[entityDescription.managedObjectClassName] == nil {
-                    
-                    self.entityConfigurationsMapping[entityDescription.managedObjectClassName] = []
-                }
-                self.entityConfigurationsMapping[entityDescription.managedObjectClassName]?.insert(configurationName)
-            }
-        }
-    }
-    
-    
-    // MARK: Private
-    
-    private let storeMetadataUpdateQueue = GCDQueue.createConcurrent("com.coreStore.persistentStoreBarrierQueue")
-    private var configurationStoreMapping = [String: NSPersistentStore]()
-    private var entityConfigurationsMapping = [String: Set<String>]()
-    
-    deinit {
-        
-        for store in self.coordinator.persistentStores {
-            
-            do {
-                
-                try self.coordinator.removePersistentStore(store)
-            }
-            catch _ { }
-        }
-    }
-}

CoreStore/Setting Up/PersistentStoreResult.swift

@@ -1,112 +0,0 @@
-//
-//  PersistentStoreResult.swift
-//  CoreStore
-//
-//  Copyright (c) 2014 John Rommel Estropia
-//
-//  Permission is hereby granted, free of charge, to any person obtaining a copy
-//  of this software and associated documentation files (the "Software"), to deal
-//  in the Software without restriction, including without limitation the rights
-//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-//  copies of the Software, and to permit persons to whom the Software is
-//  furnished to do so, subject to the following conditions:
-//
-//  The above copyright notice and this permission notice shall be included in all
-//  copies or substantial portions of the Software.
-//
-//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-//  SOFTWARE.
-//
-
-import Foundation
-import CoreData
-
-
-// MARK: - PersistentStoreResult
-
-/**
-The `PersistentStoreResult` indicates the result of an asynchronous initialization of a persistent store.
-The `PersistentStoreResult` can be treated as a boolean:
-
-    try! CoreStore.addSQLiteStore(completion: { (result: PersistentStoreResult) -> Void in
-        if result {
-            // succeeded
-        }
-        else {
-            // failed
-        }
-    })
-
-or as an `enum`, where the resulting associated object can also be inspected:
-
-    try! CoreStore.addSQLiteStore(completion: { (result: PersistentStoreResult) -> Void in
-        switch result {
-        case .Success(let persistentStore):
-            // persistentStore is the related NSPersistentStore instance
-        case .Failure(let error):
-            // error is the NSError instance for the failure
-        }
-    })
-```
-*/
-public enum PersistentStoreResult {
-    
-    // MARK: Public
-    
-    /**
-    `PersistentStoreResult.Success` indicates that the persistent store process succeeded. The associated object for this `enum` value is the related `NSPersistentStore` instance.
-    */
-    case Success(NSPersistentStore)
-    
-    /**
-    `PersistentStoreResult.Failure` indicates that the persistent store process failed. The associated object for this value is the related `NSError` instance.
-    */
-    case Failure(NSError)
-    
-    
-    // MARK: Internal
-    
-    internal init(_ store: NSPersistentStore) {
-        
-        self = .Success(store)
-    }
-    
-    internal init(_ error: NSError) {
-        
-        self = .Failure(error)
-    }
-    
-    internal init(_ errorCode: CoreStoreErrorCode) {
-        
-        self.init(errorCode, userInfo: nil)
-    }
-    
-    internal init(_ errorCode: CoreStoreErrorCode, userInfo: [NSObject: AnyObject]?) {
-        
-        self.init(NSError(
-            coreStoreErrorCode: errorCode,
-            userInfo: userInfo))
-    }
-}
-
-
-// MARK: - PersistentStoreResult: BooleanType
-
-extension PersistentStoreResult: BooleanType {
-    
-    // MARK: Public
-    
-    public var boolValue: Bool {
-        
-        switch self {
-            
-        case .Success: return true
-        case .Failure: return false
-        }
-    }
-}

CoreStoreDemo/CoreStoreDemo.xcodeproj/project.pbxproj

@@ -35,11 +35,11 @@
 		B569651A1B30888A0075EE4A /* FetchingResultsViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = B56965191B30888A0075EE4A /* FetchingResultsViewController.swift */; };
 		B569651C1B30889A0075EE4A /* QueryingResultsViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = B569651B1B30889A0075EE4A /* QueryingResultsViewController.swift */; };
 		B56965291B3582D30075EE4A /* MigrationDemo.xcdatamodeld in Sources */ = {isa = PBXBuildFile; fileRef = B56965271B3582D30075EE4A /* MigrationDemo.xcdatamodeld */; };
-		B583A9201AF5F542001F76AF /* CoreStore.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = B583A91B1AF5F4F4001F76AF /* CoreStore.framework */; };
-		B583A9211AF5F542001F76AF /* CoreStore.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = B583A91B1AF5F4F4001F76AF /* CoreStore.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
-		B5D9C9191B20AB1900E64F0E /* GCDKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = B5D9C9181B20AB1900E64F0E /* GCDKit.framework */; };
-		B5D9C91A1B20AB1900E64F0E /* GCDKit.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = B5D9C9181B20AB1900E64F0E /* GCDKit.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
 		B5E599321B5240F50084BD5F /* OrganismTableViewCell.swift in Sources */ = {isa = PBXBuildFile; fileRef = B5E599311B5240F50084BD5F /* OrganismTableViewCell.swift */; };
+		B5E89ACD1C52929C003B04A9 /* GCDKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = B5BDC9241C202429008147CD /* GCDKit.framework */; };
+		B5E89ACE1C52929C003B04A9 /* GCDKit.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = B5BDC9241C202429008147CD /* GCDKit.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
+		B5E89AD01C5292A2003B04A9 /* CoreStore.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = B5BDC9211C202429008147CD /* CoreStore.framework */; };
+		B5E89AD11C5292A2003B04A9 /* CoreStore.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = B5BDC9211C202429008147CD /* CoreStore.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
 		B5EE25851B36E23C0000406B /* OrganismV1.swift in Sources */ = {isa = PBXBuildFile; fileRef = B5EE25841B36E23C0000406B /* OrganismV1.swift */; };
 		B5EE25871B36E2520000406B /* OrganismV2.swift in Sources */ = {isa = PBXBuildFile; fileRef = B5EE25861B36E2520000406B /* OrganismV2.swift */; };
 		B5EE258C1B36E40D0000406B /* MigrationsDemoViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = B5EE258B1B36E40D0000406B /* MigrationsDemoViewController.swift */; };
@@ -47,46 +47,15 @@
 		B5EE259E1B3EC1B20000406B /* OrganismProtocol.swift in Sources */ = {isa = PBXBuildFile; fileRef = B5EE259D1B3EC1B20000406B /* OrganismProtocol.swift */; };
 /* End PBXBuildFile section */
 
-/* Begin PBXContainerItemProxy section */
-		B583A91A1AF5F4F4001F76AF /* PBXContainerItemProxy */ = {
-			isa = PBXContainerItemProxy;
-			containerPortal = B583A9141AF5F4F3001F76AF /* CoreStore.xcodeproj */;
-			proxyType = 2;
-			remoteGlobalIDString = 2F03A53019C5C6DA005002A5;
-			remoteInfo = CoreStore;
-		};
-		B583A91C1AF5F4F4001F76AF /* PBXContainerItemProxy */ = {
-			isa = PBXContainerItemProxy;
-			containerPortal = B583A9141AF5F4F3001F76AF /* CoreStore.xcodeproj */;
-			proxyType = 2;
-			remoteGlobalIDString = 2F03A53B19C5C6DA005002A5;
-			remoteInfo = CoreStoreTests;
-		};
-		B583A91E1AF5F512001F76AF /* PBXContainerItemProxy */ = {
-			isa = PBXContainerItemProxy;
-			containerPortal = B583A9141AF5F4F3001F76AF /* CoreStore.xcodeproj */;
-			proxyType = 1;
-			remoteGlobalIDString = 2F03A52F19C5C6DA005002A5;
-			remoteInfo = CoreStore;
-		};
-		B583A9221AF5F542001F76AF /* PBXContainerItemProxy */ = {
-			isa = PBXContainerItemProxy;
-			containerPortal = B583A9141AF5F4F3001F76AF /* CoreStore.xcodeproj */;
-			proxyType = 1;
-			remoteGlobalIDString = 2F03A52F19C5C6DA005002A5;
-			remoteInfo = CoreStore;
-		};
-/* End PBXContainerItemProxy section */
-
 /* Begin PBXCopyFilesBuildPhase section */
-		B583A9241AF5F542001F76AF /* Embed Frameworks */ = {
+		B5E89ACF1C52929C003B04A9 /* Embed Frameworks */ = {
 			isa = PBXCopyFilesBuildPhase;
 			buildActionMask = 2147483647;
 			dstPath = "";
 			dstSubfolderSpec = 10;
 			files = (
-				B5D9C91A1B20AB1900E64F0E /* GCDKit.framework in Embed Frameworks */,
-				B583A9211AF5F542001F76AF /* CoreStore.framework in Embed Frameworks */,
+				B5E89ACE1C52929C003B04A9 /* GCDKit.framework in Embed Frameworks */,
+				B5E89AD11C5292A2003B04A9 /* CoreStore.framework in Embed Frameworks */,
 			);
 			name = "Embed Frameworks";
 			runOnlyForDeploymentPostprocessing = 0;
@@ -124,8 +93,8 @@
 		B56965191B30888A0075EE4A /* FetchingResultsViewController.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = FetchingResultsViewController.swift; sourceTree = "<group>"; };
 		B569651B1B30889A0075EE4A /* QueryingResultsViewController.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = QueryingResultsViewController.swift; sourceTree = "<group>"; };
 		B56965281B3582D30075EE4A /* MigrationDemo.xcdatamodel */ = {isa = PBXFileReference; lastKnownFileType = wrapper.xcdatamodel; path = MigrationDemo.xcdatamodel; sourceTree = "<group>"; };
-		B583A9141AF5F4F3001F76AF /* CoreStore.xcodeproj */ = {isa = PBXFileReference; lastKnownFileType = "wrapper.pb-project"; name = CoreStore.xcodeproj; path = ../CoreStore.xcodeproj; sourceTree = "<group>"; };
-		B5D9C9181B20AB1900E64F0E /* GCDKit.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; path = GCDKit.framework; sourceTree = BUILT_PRODUCTS_DIR; };
+		B5BDC9211C202429008147CD /* CoreStore.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; path = CoreStore.framework; sourceTree = BUILT_PRODUCTS_DIR; };
+		B5BDC9241C202429008147CD /* GCDKit.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; path = GCDKit.framework; sourceTree = BUILT_PRODUCTS_DIR; };
 		B5E599311B5240F50084BD5F /* OrganismTableViewCell.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; name = OrganismTableViewCell.swift; path = "CoreStoreDemo/MIgrations Demo/OrganismTableViewCell.swift"; sourceTree = SOURCE_ROOT; };
 		B5EE25801B36E1B00000406B /* MigrationDemoV2.xcdatamodel */ = {isa = PBXFileReference; lastKnownFileType = wrapper.xcdatamodel; path = MigrationDemoV2.xcdatamodel; sourceTree = "<group>"; };
 		B5EE25841B36E23C0000406B /* OrganismV1.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = OrganismV1.swift; sourceTree = "<group>"; };
@@ -141,10 +110,10 @@
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				B5E89ACD1C52929C003B04A9 /* GCDKit.framework in Frameworks */,
+				B5E89AD01C5292A2003B04A9 /* CoreStore.framework in Frameworks */,
 				B52977E11B120F8A003D50A5 /* CoreLocation.framework in Frameworks */,
 				B52977DF1B120F83003D50A5 /* MapKit.framework in Frameworks */,
-				B5D9C9191B20AB1900E64F0E /* GCDKit.framework in Frameworks */,
-				B583A9201AF5F542001F76AF /* CoreStore.framework in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -175,9 +144,9 @@
 		B52977E21B120F90003D50A5 /* Frameworks */ = {
 			isa = PBXGroup;
 			children = (
-				B583A9141AF5F4F3001F76AF /* CoreStore.xcodeproj */,
-				B5D9C9181B20AB1900E64F0E /* GCDKit.framework */,
 				B52977E01B120F8A003D50A5 /* CoreLocation.framework */,
+				B5BDC9211C202429008147CD /* CoreStore.framework */,
+				B5BDC9241C202429008147CD /* GCDKit.framework */,
 				B52977DE1B120F83003D50A5 /* MapKit.framework */,
 			);
 			name = Frameworks;
@@ -275,15 +244,6 @@
 			path = "Migrations Demo";
 			sourceTree = "<group>";
 		};
-		B583A9151AF5F4F3001F76AF /* Products */ = {
-			isa = PBXGroup;
-			children = (
-				B583A91B1AF5F4F4001F76AF /* CoreStore.framework */,
-				B583A91D1AF5F4F4001F76AF /* CoreStoreTests.xctest */,
-			);
-			name = Products;
-			sourceTree = "<group>";
-		};
 /* End PBXGroup section */
 
 /* Begin PBXNativeTarget section */
@@ -294,13 +254,11 @@
 				B54AAD451AF4D26E00848AE0 /* Sources */,
 				B54AAD461AF4D26E00848AE0 /* Frameworks */,
 				B54AAD471AF4D26E00848AE0 /* Resources */,
-				B583A9241AF5F542001F76AF /* Embed Frameworks */,
+				B5E89ACF1C52929C003B04A9 /* Embed Frameworks */,
 			);
 			buildRules = (
 			);
 			dependencies = (
-				B583A91F1AF5F512001F76AF /* PBXTargetDependency */,
-				B583A9231AF5F542001F76AF /* PBXTargetDependency */,
 			);
 			name = CoreStoreDemo;
 			productName = CoreStoreDemo;
@@ -333,12 +291,6 @@
 			mainGroup = B54AAD401AF4D26E00848AE0;
 			productRefGroup = B54AAD4A1AF4D26E00848AE0 /* Products */;
 			projectDirPath = "";
-			projectReferences = (
-				{
-					ProductGroup = B583A9151AF5F4F3001F76AF /* Products */;
-					ProjectRef = B583A9141AF5F4F3001F76AF /* CoreStore.xcodeproj */;
-				},
-			);
 			projectRoot = "";
 			targets = (
 				B54AAD481AF4D26E00848AE0 /* CoreStoreDemo */,
@@ -346,23 +298,6 @@
 		};
 /* End PBXProject section */
 
-/* Begin PBXReferenceProxy section */
-		B583A91B1AF5F4F4001F76AF /* CoreStore.framework */ = {
-			isa = PBXReferenceProxy;
-			fileType = wrapper.framework;
-			path = CoreStore.framework;
-			remoteRef = B583A91A1AF5F4F4001F76AF /* PBXContainerItemProxy */;
-			sourceTree = BUILT_PRODUCTS_DIR;
-		};
-		B583A91D1AF5F4F4001F76AF /* CoreStoreTests.xctest */ = {
-			isa = PBXReferenceProxy;
-			fileType = wrapper.cfbundle;
-			path = CoreStoreTests.xctest;
-			remoteRef = B583A91C1AF5F4F4001F76AF /* PBXContainerItemProxy */;
-			sourceTree = BUILT_PRODUCTS_DIR;
-		};
-/* End PBXReferenceProxy section */
-
 /* Begin PBXResourcesBuildPhase section */
 		B54AAD471AF4D26E00848AE0 /* Resources */ = {
 			isa = PBXResourcesBuildPhase;
@@ -415,19 +350,6 @@
 		};
 /* End PBXSourcesBuildPhase section */
 
-/* Begin PBXTargetDependency section */
-		B583A91F1AF5F512001F76AF /* PBXTargetDependency */ = {
-			isa = PBXTargetDependency;
-			name = CoreStore;
-			targetProxy = B583A91E1AF5F512001F76AF /* PBXContainerItemProxy */;
-		};
-		B583A9231AF5F542001F76AF /* PBXTargetDependency */ = {
-			isa = PBXTargetDependency;
-			name = CoreStore;
-			targetProxy = B583A9221AF5F542001F76AF /* PBXContainerItemProxy */;
-		};
-/* End PBXTargetDependency section */
-
 /* Begin PBXVariantGroup section */
 		B54AAD571AF4D26E00848AE0 /* Main.storyboard */ = {
 			isa = PBXVariantGroup;
@@ -537,7 +459,7 @@
 				INFOPLIST_FILE = CoreStoreDemo/Info.plist;
 				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
-				PRODUCT_BUNDLE_IDENTIFIER = com.johnestropia.CoreStoreDemo;
+				PRODUCT_BUNDLE_IDENTIFIER = com.johnestropia.corestore.demo;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 			};
 			name = Debug;
@@ -549,7 +471,7 @@
 				INFOPLIST_FILE = CoreStoreDemo/Info.plist;
 				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
-				PRODUCT_BUNDLE_IDENTIFIER = com.johnestropia.CoreStoreDemo;
+				PRODUCT_BUNDLE_IDENTIFIER = com.johnestropia.corestore.demo;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 			};
 			name = Release;

CoreStoreDemo/CoreStoreDemo/AppDelegate.swift

@@ -3,7 +3,7 @@
 //  CoreStoreDemo
 //
 //  Created by John Rommel Estropia on 2015/05/02.
-//  Copyright (c) 2015 John Rommel Estropia. All rights reserved.
+//  Copyright © 2015 John Rommel Estropia. All rights reserved.
 //
 
 import UIKit
@@ -21,6 +21,7 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
     func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
         
         application.statusBarStyle = .LightContent
+        
         return true
     }
 }

CoreStoreDemo/CoreStoreDemo/Base.lproj/LaunchScreen.xib

@@ -1,7 +1,8 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="7706" systemVersion="14D136" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES">
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="10112" systemVersion="15D21" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES">
     <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="7703"/>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="10083"/>
         <capability name="Constraints with non-1.0 multipliers" minToolsVersion="5.1"/>
     </dependencies>
     <objects>
@@ -11,14 +12,17 @@
             <rect key="frame" x="0.0" y="0.0" width="480" height="480"/>
             <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
             <subviews>
-                <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="  Copyright (c) 2015 John Rommel Estropia. All rights reserved." textAlignment="center" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" minimumFontSize="9" translatesAutoresizingMaskIntoConstraints="NO" id="8ie-xW-0ye">
+                <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="  Copyright © 2015 John Rommel Estropia. All rights reserved." textAlignment="center" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" minimumFontSize="9" translatesAutoresizingMaskIntoConstraints="NO" id="8ie-xW-0ye">
                     <rect key="frame" x="20" y="439" width="441" height="21"/>
                     <fontDescription key="fontDescription" type="system" pointSize="17"/>
                     <color key="textColor" red="0.92549019607843142" green="0.94117647058823528" blue="0.94509803921568625" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
                     <nil key="highlightedColor"/>
                 </label>
-                <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" misplaced="YES" text="CoreStore" textAlignment="center" lineBreakMode="middleTruncation" baselineAdjustment="alignBaselines" minimumFontSize="18" translatesAutoresizingMaskIntoConstraints="NO" id="kId-c2-rCX">
-                    <rect key="frame" x="20" y="140" width="441" height="43"/>
+                <imageView userInteractionEnabled="NO" contentMode="center" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="CoreStoreIcon" translatesAutoresizingMaskIntoConstraints="NO" id="q8C-V6-gXH">
+                    <rect key="frame" x="155" y="83" width="170" height="170"/>
+                </imageView>
+                <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="CoreStore" textAlignment="center" lineBreakMode="middleTruncation" baselineAdjustment="alignBaselines" minimumFontSize="18" translatesAutoresizingMaskIntoConstraints="NO" id="kId-c2-rCX">
+                    <rect key="frame" x="20" y="273" width="440" height="57.5"/>
                     <fontDescription key="fontDescription" name="HelveticaNeue-UltraLight" family="Helvetica Neue" pointSize="50"/>
                     <color key="textColor" red="0.92549019607843142" green="0.94117647058823528" blue="0.94509803921568625" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
                     <nil key="highlightedColor"/>
@@ -26,16 +30,21 @@
             </subviews>
             <color key="backgroundColor" red="0.20392156862745098" green="0.28627450980392155" blue="0.36862745098039218" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
             <constraints>
-                <constraint firstItem="kId-c2-rCX" firstAttribute="centerY" secondItem="iN0-l3-epB" secondAttribute="bottom" multiplier="1/3" constant="1" id="5cJ-9S-tgC"/>
                 <constraint firstAttribute="centerX" secondItem="kId-c2-rCX" secondAttribute="centerX" id="Koa-jz-hwk"/>
                 <constraint firstAttribute="bottom" secondItem="8ie-xW-0ye" secondAttribute="bottom" constant="20" id="Kzo-t9-V3l"/>
                 <constraint firstItem="8ie-xW-0ye" firstAttribute="leading" secondItem="iN0-l3-epB" secondAttribute="leading" constant="20" symbolic="YES" id="MfP-vx-nX0"/>
+                <constraint firstItem="q8C-V6-gXH" firstAttribute="centerY" secondItem="iN0-l3-epB" secondAttribute="centerY" multiplier="0.7" id="QW6-8Y-w15"/>
                 <constraint firstAttribute="centerX" secondItem="8ie-xW-0ye" secondAttribute="centerX" id="ZEH-qu-HZ9"/>
+                <constraint firstItem="q8C-V6-gXH" firstAttribute="centerX" secondItem="iN0-l3-epB" secondAttribute="centerX" id="fRb-1V-9iD"/>
                 <constraint firstItem="kId-c2-rCX" firstAttribute="leading" secondItem="iN0-l3-epB" secondAttribute="leading" constant="20" symbolic="YES" id="fvb-Df-36g"/>
+                <constraint firstItem="kId-c2-rCX" firstAttribute="top" secondItem="q8C-V6-gXH" secondAttribute="bottom" constant="20" id="s63-MP-ush"/>
             </constraints>
             <nil key="simulatedStatusBarMetrics"/>
             <freeformSimulatedSizeMetrics key="simulatedDestinationMetrics"/>
             <point key="canvasLocation" x="548" y="455"/>
         </view>
     </objects>
+    <resources>
+        <image name="CoreStoreIcon" width="170" height="170"/>
+    </resources>
 </document>

CoreStoreDemo/CoreStoreDemo/Base.lproj/LaunchScreen.xib.orig

@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<<<<<<< Updated upstream
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="9531" systemVersion="15C50" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="9529"/>
+=======
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="9532" systemVersion="15D21" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES">
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="9530"/>
+>>>>>>> Stashed changes
+        <capability name="Constraints with non-1.0 multipliers" minToolsVersion="5.1"/>
+    </dependencies>
+    <objects>
+        <placeholder placeholderIdentifier="IBFilesOwner" id="-1" userLabel="File's Owner"/>
+        <placeholder placeholderIdentifier="IBFirstResponder" id="-2" customClass="UIResponder"/>
+        <view contentMode="scaleToFill" id="iN0-l3-epB">
+            <rect key="frame" x="0.0" y="0.0" width="480" height="480"/>
+            <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+            <subviews>
+<<<<<<< Updated upstream
+                <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="  Copyright © 2015 John Rommel Estropia. All rights reserved." textAlignment="center" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" minimumFontSize="9" translatesAutoresizingMaskIntoConstraints="NO" id="8ie-xW-0ye">
+                    <rect key="frame" x="20" y="439" width="441" height="21"/>
+=======
+                <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="  Copyright (c) 2015 John Rommel Estropia. All rights reserved." textAlignment="center" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" minimumFontSize="9" translatesAutoresizingMaskIntoConstraints="NO" id="8ie-xW-0ye">
+                    <rect key="frame" x="20" y="439.5" width="441" height="20.5"/>
+>>>>>>> Stashed changes
+                    <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                    <color key="textColor" red="0.92549019607843142" green="0.94117647058823528" blue="0.94509803921568625" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                    <nil key="highlightedColor"/>
+                </label>
+                <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="CoreStore" textAlignment="center" lineBreakMode="middleTruncation" baselineAdjustment="alignBaselines" minimumFontSize="18" translatesAutoresizingMaskIntoConstraints="NO" id="kId-c2-rCX">
+                    <rect key="frame" x="20" y="133" width="441" height="57.5"/>
+                    <fontDescription key="fontDescription" name="HelveticaNeue-UltraLight" family="Helvetica Neue" pointSize="50"/>
+                    <color key="textColor" red="0.92549019607843142" green="0.94117647058823528" blue="0.94509803921568625" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                    <nil key="highlightedColor"/>
+                </label>
+            </subviews>
+            <color key="backgroundColor" red="0.20392156862745098" green="0.28627450980392155" blue="0.36862745098039218" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+            <constraints>
+                <constraint firstItem="kId-c2-rCX" firstAttribute="centerY" secondItem="iN0-l3-epB" secondAttribute="bottom" multiplier="1/3" constant="1" id="5cJ-9S-tgC"/>
+                <constraint firstAttribute="centerX" secondItem="kId-c2-rCX" secondAttribute="centerX" id="Koa-jz-hwk"/>
+                <constraint firstAttribute="bottom" secondItem="8ie-xW-0ye" secondAttribute="bottom" constant="20" id="Kzo-t9-V3l"/>
+                <constraint firstItem="8ie-xW-0ye" firstAttribute="leading" secondItem="iN0-l3-epB" secondAttribute="leading" constant="20" symbolic="YES" id="MfP-vx-nX0"/>
+                <constraint firstAttribute="centerX" secondItem="8ie-xW-0ye" secondAttribute="centerX" id="ZEH-qu-HZ9"/>
+                <constraint firstItem="kId-c2-rCX" firstAttribute="leading" secondItem="iN0-l3-epB" secondAttribute="leading" constant="20" symbolic="YES" id="fvb-Df-36g"/>
+            </constraints>
+            <nil key="simulatedStatusBarMetrics"/>
+            <freeformSimulatedSizeMetrics key="simulatedDestinationMetrics"/>
+            <point key="canvasLocation" x="548" y="455"/>
+        </view>
+    </objects>
+</document>

CoreStoreDemo/CoreStoreDemo/Base.lproj/Main.storyboard

@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="8152.3" systemVersion="14E46" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="Ni8-QF-XHB">
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="10112" systemVersion="15D21" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="Ni8-QF-XHB">
     <dependencies>
         <deployment identifier="iOS"/>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="8124.4"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="10083"/>
         <capability name="Aspect ratio constraints" minToolsVersion="5.1"/>
         <capability name="Constraints to layout margins" minToolsVersion="6.0"/>
         <capability name="Constraints with non-1.0 multipliers" minToolsVersion="5.1"/>
@@ -297,7 +297,7 @@
                                                     <nil key="highlightedColor"/>
                                                 </label>
                                                 <label opaque="NO" multipleTouchEnabled="YES" contentMode="left" text="Setting up multiple persistent store configurations" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" id="Hbn-cf-Y7m">
-                                                    <rect key="frame" x="15" y="30" width="264" height="13.5"/>
+                                                    <rect key="frame" x="15" y="30" width="263.5" height="13.5"/>
                                                     <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
                                                     <fontDescription key="fontDescription" type="system" pointSize="11"/>
                                                     <color key="textColor" red="0.17254901959999999" green="0.24313725489999999" blue="0.31372549020000001" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
@@ -324,7 +324,7 @@
                                                     <nil key="highlightedColor"/>
                                                 </label>
                                                 <label opaque="NO" multipleTouchEnabled="YES" contentMode="left" text="Observing list changes and single object changes" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" id="ou9-TZ-8bf">
-                                                    <rect key="frame" x="15" y="30" width="261.5" height="13.5"/>
+                                                    <rect key="frame" x="15" y="30" width="260.5" height="13.5"/>
                                                     <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
                                                     <fontDescription key="fontDescription" type="system" pointSize="11"/>
                                                     <color key="textColor" red="0.17254901959999999" green="0.24313725489999999" blue="0.31372549020000001" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
@@ -351,7 +351,7 @@
                                                     <nil key="highlightedColor"/>
                                                 </label>
                                                 <label opaque="NO" multipleTouchEnabled="YES" contentMode="left" text="Making changes with transactions" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" id="uP1-Jc-o9v">
-                                                    <rect key="frame" x="15" y="30" width="179.5" height="13.5"/>
+                                                    <rect key="frame" x="15" y="30" width="179" height="13.5"/>
                                                     <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
                                                     <fontDescription key="fontDescription" type="system" pointSize="11"/>
                                                     <color key="textColor" red="0.17254901959999999" green="0.24313725489999999" blue="0.31372549020000001" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
@@ -378,7 +378,7 @@
                                                     <nil key="highlightedColor"/>
                                                 </label>
                                                 <label opaque="NO" multipleTouchEnabled="YES" contentMode="left" text="Fetching objects and raw values" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" id="jZw-qE-0ws">
-                                                    <rect key="frame" x="15" y="30" width="169" height="13.5"/>
+                                                    <rect key="frame" x="15" y="30" width="168.5" height="13.5"/>
                                                     <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
                                                     <fontDescription key="fontDescription" type="system" pointSize="11"/>
                                                     <color key="textColor" red="0.17254901959999999" green="0.24313725489999999" blue="0.31372549020000001" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
@@ -405,7 +405,7 @@
                                                     <nil key="highlightedColor"/>
                                                 </label>
                                                 <label opaque="NO" multipleTouchEnabled="YES" contentMode="left" text="Implementing a custom logger" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" id="QzD-9b-k1j">
-                                                    <rect key="frame" x="15" y="30" width="159.5" height="13.5"/>
+                                                    <rect key="frame" x="15" y="30" width="159" height="13.5"/>
                                                     <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
                                                     <fontDescription key="fontDescription" type="system" pointSize="11"/>
                                                     <color key="textColor" red="0.17254901959999999" green="0.24313725489999999" blue="0.31372549020000001" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>

CoreStoreDemo/CoreStoreDemo/CoreStoreDemo.xcdatamodeld/CoreStoreDemo.xcdatamodel/contents

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
-<model userDefinedModelVersionIdentifier="" type="com.apple.IDECoreDataModeler.DataModel" documentVersion="1.0" lastSavedToolsVersion="7701" systemVersion="14D136" minimumToolsVersion="Automatic" macOSVersion="Automatic" iOSVersion="Automatic">
+<model userDefinedModelVersionIdentifier="" type="com.apple.IDECoreDataModeler.DataModel" documentVersion="1.0" lastSavedToolsVersion="10169.1" systemVersion="15D21" minimumToolsVersion="Automatic">
     <entity name="Palette" representedClassName="CoreStoreDemo.Palette">
         <attribute name="brightness" optional="YES" attributeType="Float" defaultValueString="0.0" syncable="YES"/>
         <attribute name="colorName" optional="YES" transient="YES" attributeType="String" syncable="YES"/>

CoreStoreDemo/CoreStoreDemo/Fetching and Querying Demo/FetchingAndQueryingDemoViewController.swift

@@ -3,7 +3,7 @@
 //  CoreStoreDemo
 //
 //  Created by John Rommel Estropia on 2015/06/12.
-//  Copyright (c) 2015 John Rommel Estropia. All rights reserved.
+//  Copyright © 2015 John Rommel Estropia. All rights reserved.
 //
 
 import UIKit
@@ -15,10 +15,12 @@ private struct Static {
     static let timeZonesStack: DataStack = {
         
         let dataStack = DataStack()
-        try! dataStack.addSQLiteStoreAndWait(
-            fileName: "TimeZoneDemo.sqlite",
-            configuration: "FetchingAndQueryingDemo",
-            resetStoreOnModelMismatch: true
+        try! dataStack.addStorageAndWait(
+            SQLiteStore(
+                fileName: "TimeZoneDemo.sqlite",
+                configuration: "FetchingAndQueryingDemo",
+                localStorageOptions: .RecreateStoreOnModelMismatch
+            )
         )
     
         dataStack.beginSynchronous { (transaction) -> Void in
@@ -37,7 +39,7 @@ private struct Static {
                 cachedTimeZone.daylightSavingTimeOffset = rawTimeZone.daylightSavingTimeOffset
             }
             
-            transaction.commit()
+            transaction.commitAndWait()
         }
         
         return dataStack
@@ -97,12 +99,13 @@ class FetchingAndQueryingDemoViewController: UIViewController, UITableViewDataSo
     // MARK: UITableViewDataSource
     
     func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
+        
         switch self.segmentedControl?.selectedSegmentIndex {
             
-        case .Some(Section.Fetching.rawValue):
+        case Section.Fetching.rawValue?:
             return self.fetchingItems.count
             
-        case .Some(Section.Querying.rawValue):
+        case Section.Querying.rawValue?:
             return self.queryingItems.count
             
         default:
@@ -116,10 +119,10 @@ class FetchingAndQueryingDemoViewController: UIViewController, UITableViewDataSo
         
         switch self.segmentedControl?.selectedSegmentIndex {
             
-        case .Some(Section.Fetching.rawValue):
+        case Section.Fetching.rawValue?:
             cell.textLabel?.text = self.fetchingItems[indexPath.row].title
             
-        case .Some(Section.Querying.rawValue):
+        case Section.Querying.rawValue?:
             cell.textLabel?.text = self.queryingItems[indexPath.row].title
             
         default:
@@ -138,10 +141,10 @@ class FetchingAndQueryingDemoViewController: UIViewController, UITableViewDataSo
         
         switch self.segmentedControl?.selectedSegmentIndex {
             
-        case .Some(Section.Fetching.rawValue):
+        case Section.Fetching.rawValue?:
             self.performSegueWithIdentifier("FetchingResultsViewController", sender: indexPath)
             
-        case .Some(Section.Querying.rawValue):
+        case Section.Querying.rawValue?:
             self.performSegueWithIdentifier("QueryingResultsViewController", sender: indexPath)
             
         default:

CoreStoreDemo/CoreStoreDemo/Fetching and Querying Demo/FetchingResultsViewController.swift

@@ -3,7 +3,7 @@
 //  CoreStoreDemo
 //
 //  Created by John Rommel Estropia on 2015/06/17.
-//  Copyright (c) 2015 John Rommel Estropia. All rights reserved.
+//  Copyright © 2015 John Rommel Estropia. All rights reserved.
 //
 
 import UIKit

CoreStoreDemo/CoreStoreDemo/Fetching and Querying Demo/QueryingResultsViewController.swift

@@ -3,7 +3,7 @@
 //  CoreStoreDemo
 //
 //  Created by John Rommel Estropia on 2015/06/17.
-//  Copyright (c) 2015 John Rommel Estropia. All rights reserved.
+//  Copyright © 2015 John Rommel Estropia. All rights reserved.
 //
 
 import UIKit
@@ -16,19 +16,19 @@ class QueryingResultsViewController: UITableViewController {
         
         switch value {
             
-        case .Some(let array as [AnyObject]):
+        case (let array as [AnyObject])?:
             self.values = array.map { (item: AnyObject) -> (title: String, detail: String) in
                 (
                     title: item.description,
-                    detail: _stdlib_getDemangledTypeName(item)
+                    detail: String(reflecting: item.dynamicType)
                 )
             }
             
-        case .Some(let item):
+        case let item?:
             self.values = [
                 (
                     title: item.description,
-                    detail: _stdlib_getDemangledTypeName(item)
+                    detail: String(reflecting: item.dynamicType)
                 )
             ]
             

CoreStoreDemo/CoreStoreDemo/Fetching and Querying Demo/TimeZone.swift

@@ -3,7 +3,7 @@
 //  CoreStoreDemo
 //
 //  Created by John Rommel Estropia on 2015/06/15.
-//  Copyright (c) 2015 John Rommel Estropia. All rights reserved.
+//  Copyright © 2015 John Rommel Estropia. All rights reserved.
 //
 
 import Foundation

CoreStoreDemo/CoreStoreDemo/Images.xcassets/AppIcon.appiconset/Contents.json

@@ -21,13 +21,33 @@
       "scale" : "3x"
     },
     {
-      "idiom" : "iphone",
       "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-60@2x.png",
       "scale" : "2x"
     },
     {
-      "idiom" : "iphone",
       "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-60@3x-1.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-76.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-76@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "car",
+      "filename" : "Icon-60@3x.png",
       "scale" : "3x"
     }
   ],

CoreStoreDemo/CoreStoreDemo/Images.xcassets/Contents.json

@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

CoreStoreDemo/CoreStoreDemo/Images.xcassets/CoreStoreIcon.imageset/Contents.json

@@ -0,0 +1,21 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "CoreStoreIcon@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

CoreStoreDemo/CoreStoreDemo/Info.plist

@@ -4,6 +4,8 @@
 <dict>
 	<key>CFBundleDevelopmentRegion</key>
 	<string>en</string>
+	<key>CFBundleDisplayName</key>
+	<string>CoreStore</string>
 	<key>CFBundleExecutable</key>
 	<string>$(EXECUTABLE_NAME)</string>
 	<key>CFBundleIdentifier</key>

CoreStoreDemo/CoreStoreDemo/List and Object Observers Demo/ListObserverDemoViewController.swift

@@ -3,7 +3,7 @@
 //  CoreStoreDemo
 //
 //  Created by John Rommel Estropia on 2015/05/02.
-//  Copyright (c) 2015 John Rommel Estropia. All rights reserved.
+//  Copyright © 2015 John Rommel Estropia. All rights reserved.
 //
 
 import UIKit
@@ -12,12 +12,49 @@ import CoreStore
 
 private struct Static {
     
+    enum Filter: String {
+        
+        case All = "All Colors"
+        case Light = "Light Colors"
+        case Dark = "Dark Colors"
+        
+        func next() -> Filter {
+            
+            switch self {
+                
+            case All: return .Light
+            case Light: return .Dark
+            case Dark: return .All
+            }
+        }
+        
+        func whereClause() -> Where {
+            
+            switch self {
+                
+            case .All: return Where(true)
+            case .Light: return Where("brightness >= 0.9")
+            case .Dark: return Where("brightness <= 0.4")
+            }
+        }
+    }
+    
+    static var filter = Filter.All {
+        
+        didSet {
+            
+            self.palettes.refetch(self.filter.whereClause())
+        }
+    }
+    
     static let palettes: ListMonitor<Palette> = {
         
-        try! CoreStore.addSQLiteStoreAndWait(
-            fileName: "ColorsDemo.sqlite",
-            configuration: "ObservingDemo",
-            resetStoreOnModelMismatch: true
+        try! CoreStore.addStorageAndWait(
+            SQLiteStore(
+                fileName: "ColorsDemo.sqlite",
+                configuration: "ObservingDemo",
+                localStorageOptions: .RecreateStoreOnModelMismatch
+            )
         )
         
         return CoreStore.monitorSectionedList(
@@ -47,21 +84,35 @@ class ListObserverDemoViewController: UITableViewController, ListSectionObserver
         
         super.viewDidLoad()
         
-        self.navigationItem.leftBarButtonItems = [
+        let navigationItem = self.navigationItem
+        navigationItem.leftBarButtonItems = [
             self.editButtonItem(),
             UIBarButtonItem(
                 barButtonSystemItem: .Trash,
                 target: self,
-                action: "resetBarButtonItemTouched:"
+                action: #selector(self.resetBarButtonItemTouched(_:))
             )
         ]
-        self.navigationItem.rightBarButtonItem = UIBarButtonItem(
-            barButtonSystemItem: .Add,
+        
+        let filterBarButton = UIBarButtonItem(
+            title: Static.filter.rawValue,
+            style: .Plain,
             target: self,
-            action: "addBarButtonItemTouched:"
+            action: #selector(self.filterBarButtonItemTouched(_:))
         )
+        navigationItem.rightBarButtonItems = [
+            UIBarButtonItem(
+                barButtonSystemItem: .Add,
+                target: self,
+                action: #selector(self.addBarButtonItemTouched(_:))
+            ),
+            filterBarButton
+        ]
+        self.filterBarButton = filterBarButton
         
         Static.palettes.addObserver(self)
+        
+        self.setTableEnabled(!Static.palettes.isPendingRefetch)
     }
     
     override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
@@ -70,7 +121,7 @@ class ListObserverDemoViewController: UITableViewController, ListSectionObserver
         
         switch (segue.identifier, segue.destinationViewController, sender) {
             
-        case (.Some("ObjectObserverDemoViewController"), let destinationViewController as ObjectObserverDemoViewController, let palette as Palette):
+        case ("ObjectObserverDemoViewController"?, let destinationViewController as ObjectObserverDemoViewController, let palette as Palette):
             destinationViewController.palette = palette
             
         default:
@@ -150,6 +201,18 @@ class ListObserverDemoViewController: UITableViewController, ListSectionObserver
         self.tableView.endUpdates()
     }
     
+    func listMonitorWillRefetch(monitor: ListMonitor<Palette>) {
+        
+        self.setTableEnabled(false)
+    }
+    
+    func listMonitorDidRefetch(monitor: ListMonitor<Palette>) {
+        
+        self.filterBarButton?.title = Static.filter.rawValue
+        self.tableView.reloadData()
+        self.setTableEnabled(true)
+    }
+    
     
     // MARK: ListObjectObserver
     
@@ -195,6 +258,8 @@ class ListObserverDemoViewController: UITableViewController, ListSectionObserver
     
     // MARK: Private
     
+    private var filterBarButton: UIBarButtonItem?
+    
     @IBAction private dynamic func resetBarButtonItemTouched(sender: AnyObject?) {
         
         CoreStore.beginAsynchronous { (transaction) -> Void in
@@ -204,6 +269,11 @@ class ListObserverDemoViewController: UITableViewController, ListSectionObserver
         }
     }
     
+    @IBAction private dynamic func filterBarButtonItemTouched(sender: AnyObject?) {
+        
+        Static.filter = Static.filter.next()
+    }
+    
     @IBAction private dynamic func addBarButtonItemTouched(sender: AnyObject?) {
         
         CoreStore.beginAsynchronous { (transaction) -> Void in
@@ -214,5 +284,23 @@ class ListObserverDemoViewController: UITableViewController, ListSectionObserver
             transaction.commit()
         }
     }
+    
+    private func setTableEnabled(enabled: Bool) {
+        
+        UIView.animateWithDuration(
+            0.2,
+            delay: 0,
+            options: .BeginFromCurrentState,
+            animations: { () -> Void in
+                
+                if let tableView = self.tableView {
+                    
+                    tableView.alpha = enabled ? 1.0 : 0.5
+                    tableView.userInteractionEnabled = enabled
+                }
+            },
+            completion: nil
+        )
+    }
 }
 

CoreStoreDemo/CoreStoreDemo/List and Object Observers Demo/ObjectObserverDemoViewController.swift

@@ -3,7 +3,7 @@
 //  CoreStoreDemo
 //
 //  Created by John Rommel Estropia on 2015/05/06.
-//  Copyright (c) 2015 John Rommel Estropia. All rights reserved.
+//  Copyright © 2015 John Rommel Estropia. All rights reserved.
 //
 
 import UIKit
@@ -22,6 +22,11 @@ class ObjectObserverDemoViewController: UIViewController, ObjectObserver {
         }
         set {
             
+            guard self.monitor?.object != newValue else {
+                
+                return
+            }
+            
             if let palette = newValue {
                 
                 self.monitor = CoreStore.monitorObject(palette)
@@ -56,7 +61,7 @@ class ObjectObserverDemoViewController: UIViewController, ObjectObserver {
                 let palette = transaction.create(Into(Palette))
                 palette.setInitialValues()
                 
-                transaction.commit()
+                transaction.commitAndWait()
             }
             
             let palette = CoreStore.fetchOne(From(Palette), OrderBy(.Ascending("hue")))!
@@ -80,11 +85,6 @@ class ObjectObserverDemoViewController: UIViewController, ObjectObserver {
     
     // MARK: ObjectObserver
     
-    func objectMonitor(monitor: ObjectMonitor<Palette>, willUpdateObject object: Palette) {
-        
-        // none
-    }
-    
     func objectMonitor(monitor: ObjectMonitor<Palette>, didUpdateObject object: Palette, changedPersistentKeys: Set<KeyPath>) {
         
         self.reloadPaletteInfo(object, changedKeys: changedPersistentKeys)

CoreStoreDemo/CoreStoreDemo/List and Object Observers Demo/ObserversViewController.swift

@@ -3,7 +3,7 @@
 //  CoreStoreDemo
 //
 //  Created by John Rommel Estropia on 2015/05/24.
-//  Copyright (c) 2015 John Rommel Estropia. All rights reserved.
+//  Copyright © 2015 John Rommel Estropia. All rights reserved.
 //
 
 import UIKit

CoreStoreDemo/CoreStoreDemo/List and Object Observers Demo/Palette.swift

@@ -3,7 +3,7 @@
 //  CoreStoreDemo
 //
 //  Created by John Rommel Estropia on 2015/05/05.
-//  Copyright (c) 2015 John Rommel Estropia. All rights reserved.
+//  Copyright © 2015 John Rommel Estropia. All rights reserved.
 //
 
 import Foundation

CoreStoreDemo/CoreStoreDemo/List and Object Observers Demo/PaletteTableViewCell.swift

@@ -3,7 +3,7 @@
 //  CoreStoreDemo
 //
 //  Created by John Rommel Estropia on 2015/05/05.
-//  Copyright (c) 2015 John Rommel Estropia. All rights reserved.
+//  Copyright © 2015 John Rommel Estropia. All rights reserved.
 //
 
 import UIKit

CoreStoreDemo/CoreStoreDemo/Loggers Demo/CustomLoggerViewController.swift

@@ -3,7 +3,7 @@
 //  CoreStoreDemo
 //
 //  Created by John Rommel Estropia on 2015/06/05.
-//  Copyright (c) 2015 John Rommel Estropia. All rights reserved.
+//  Copyright © 2015 John Rommel Estropia. All rights reserved.
 //
 
 import UIKit
@@ -30,7 +30,7 @@ class CustomLoggerViewController: UIViewController, CoreStoreLogger {
         
         super.viewDidLoad()
         
-        try! self.dataStack.addSQLiteStoreAndWait(fileName: "emptyStore.sqlite")
+        try! self.dataStack.addStorageAndWait(SQLiteStore(fileName: "emptyStore.sqlite"))
         CoreStore.logger = self
     }
     
@@ -62,36 +62,32 @@ class CustomLoggerViewController: UIViewController, CoreStoreLogger {
             case .Warning: levelString = "Warning"
             case .Fatal: levelString = "Fatal"
             }
-            self?.textView?.insertText("\(fileName.stringValue.lastPathComponent):\(lineNumber) \(functionName)\n  ↪︎ [Log:\(levelString)] \(message)\n\n")
+            self?.textView?.insertText("\((fileName.stringValue as NSString).lastPathComponent):\(lineNumber) \(functionName)\n  ↪︎ [Log:\(levelString)] \(message)\n\n")
         }
     }
     
-    func handleError(error error: NSError, message: String, fileName: StaticString, lineNumber: Int, functionName: StaticString) {
+    func log(error error: CoreStoreError, message: String, fileName: StaticString, lineNumber: Int, functionName: StaticString) {
         
         GCDQueue.Main.async { [weak self] in
             
-            self?.textView?.insertText("\(fileName.stringValue.lastPathComponent):\(lineNumber) \(functionName)\n  ↪︎ [Error] \(message): \(error)\n\n")
+            self?.textView?.insertText("\((fileName.stringValue as NSString).lastPathComponent):\(lineNumber) \(functionName)\n  ↪︎ [Error] \(message): \(error)\n\n")
         }
     }
     
-    func assert(@autoclosure condition: () -> Bool, message: String, fileName: StaticString, lineNumber: Int, functionName: StaticString) {
+    func assert(@autoclosure condition: () -> Bool, @autoclosure message: () -> String, fileName: StaticString, lineNumber: Int, functionName: StaticString) {
         
         if condition() {
             
             return
         }
         
+        let messageString = message()
         GCDQueue.Main.async { [weak self] in
             
-            self?.textView?.insertText("\(fileName.stringValue.lastPathComponent):\(lineNumber) \(functionName)\n  ↪︎ [Assert] \(message)\n\n")
+            self?.textView?.insertText("\((fileName.stringValue as NSString).lastPathComponent):\(lineNumber) \(functionName)\n  ↪︎ [Assert] \(messageString)\n\n")
         }
     }
     
-    @noreturn func fatalError(message: String, fileName: StaticString, lineNumber: Int, functionName: StaticString) {
-        
-        Swift.fatalError("\(fileName.stringValue.lastPathComponent):\(lineNumber) \(functionName)\n  ↪︎ [Abort] \(message)")
-    }
-    
     
     // MARK: Private
     
@@ -102,20 +98,21 @@ class CustomLoggerViewController: UIViewController, CoreStoreLogger {
         
         switch self.segmentedControl?.selectedSegmentIndex {
             
-        case .Some(0):
+        case 0?:
             self.dataStack.beginAsynchronous { (transaction) -> Void in
                 
                 transaction.create(Into(Palette))
             }
             
-        case .Some(1):
-            do {
-                
-                try self.dataStack.addSQLiteStoreAndWait(fileName: "emptyStore.sqlite", configuration: "invalidStore")
-            }
-            catch _ { }
+        case 1?:
+            _ = try? dataStack.addStorageAndWait(
+                SQLiteStore(
+                    fileName: "emptyStore.sqlite",
+                    configuration: "invalidStore"
+                )
+            )
             
-        case .Some(2):
+        case 2?:
             self.dataStack.beginAsynchronous { (transaction) -> Void in
                 
                 transaction.commit()

CoreStoreDemo/CoreStoreDemo/MIgrations Demo/MigrationsDemoViewController.swift

@@ -3,7 +3,7 @@
 //  CoreStoreDemo
 //
 //  Created by John Rommel Estropia on 2015/06/21.
-//  Copyright (c) 2015 John Rommel Estropia. All rights reserved.
+//  Copyright © 2015 John Rommel Estropia. All rights reserved.
 //
 
 import UIKit
@@ -39,7 +39,7 @@ class MigrationsDemoViewController: UIViewController {
         
         let alert = UIAlertController(
             title: "Migrations Demo",
-            message: "This demo shows how to run incremental migrations and how to support multiple model versions in a single project.\n\nThe persistent store contains 10000 organisms, which gain/lose properties when the migration evolves/devolves them.\n\nYou can use the \"mutate\" button to change an organism's properties then migrate to a different model to see how its value gets affected.",
+            message: "This demo shows how to run progressive migrations and how to support multiple model versions in a single project.\n\nThe persistent store contains 10000 organisms, which gain/lose properties when the migration evolves/devolves them.\n\nYou can use the \"mutate\" button to change an organism's properties then migrate to a different model to see how its value gets affected.",
             preferredStyle: .Alert
         )
         alert.addAction(UIAlertAction(title: "OK", style: .Cancel, handler: nil))
@@ -50,22 +50,21 @@ class MigrationsDemoViewController: UIViewController {
             (dataStack: DataStack) -> ModelMetadata in
             
             let models = self.models
-            do {
+            let migrations = try! dataStack.requiredMigrationsForStorage(
+                SQLiteStore(fileName: "MigrationDemo.sqlite")
+            )
+            
+            guard let storeVersion = migrations.first?.sourceVersion else {
+            
+                return models.first!
+            }
+            for model in models {
                 
-                let migrations = try dataStack.requiredMigrationsForSQLiteStore(
-                    fileName: "MigrationDemo.sqlite"
-                )
-                
-                let storeVersion = migrations.first?.sourceVersion ?? dataStack.modelVersion
-                for model in models {
+                if model.version == storeVersion {
                     
-                    if model.version == storeVersion {
-                        
-                        return model
-                    }
+                    return model
                 }
             }
-            catch _ { }
             
             return models.first!
         }
@@ -158,40 +157,50 @@ class MigrationsDemoViewController: UIViewController {
         )
         
         self.setEnabled(false)
-        let progress = try! dataStack.addSQLiteStore(
-            fileName: "MigrationDemo.sqlite",
+        let progress = dataStack.addStorage(
+            SQLiteStore(fileName: "MigrationDemo.sqlite"),
             completion: { [weak self] (result) -> Void in
                 
-                guard let strongSelf = self else {
+                guard let `self` = self else {
                     
                     return
                 }
                 
                 guard case .Success = result else {
                     
-                    strongSelf.setEnabled(true)
+                    self.setEnabled(true)
                     return
                 }
                 
-                strongSelf.setDataStack(dataStack, model: model, scrollToSelection: true)
+                self.setDataStack(dataStack, model: model, scrollToSelection: true)
                 
-                let count = dataStack.queryValue(From(model.entityType), Select<Int>(.Count("dna")))
+                let count = dataStack.queryValue(
+                    From(model.entityType),
+                    Select<Int>(.Count("dna"))
+                )
                 if count > 0 {
                     
-                    strongSelf.setEnabled(true)
+                    self.setEnabled(true)
                 }
                 else {
                     
-                    dataStack.beginAsynchronous { (transaction) -> Void in
+                    for i: Int64 in 0 ..< 20 {
                         
-                        for i: Int64 in 1 ..< 10000 {
+                        dataStack.beginAsynchronous { (transaction) -> Void in
                             
-                            let organism = transaction.create(Into(model.entityType)) as! OrganismProtocol
-                            organism.dna = i
-                            organism.mutate()
+                            for j: Int64 in 0 ..< 500 {
+                                
+                                let organism = transaction.create(Into(model.entityType)) as! OrganismProtocol
+                                organism.dna = (i * 500) + j + 1
+                                organism.mutate()
+                            }
+                            
+                            transaction.commit()
                         }
+                    }
+                    dataStack.beginAsynchronous { [weak self] (transaction) -> Void in
                         
-                        transaction.commit { result -> Void in
+                        transaction.commit { _ in
                             
                             self?.setEnabled(true)
                         }
@@ -256,8 +265,8 @@ class MigrationsDemoViewController: UIViewController {
         else {
            
             self.segmentedControl?.selectedSegmentIndex = UISegmentedControlNoSegment
-            self._dataStack = nil
             self._listMonitor = nil
+            self._dataStack = nil
         }
         
         self.updateDisplay(reloadData: true, scrollToSelection: scrollToSelection, animated: false)
@@ -267,7 +276,7 @@ class MigrationsDemoViewController: UIViewController {
         
         self.progressView?.setProgress(Float(progress.fractionCompleted), animated: true)
         self.titleLabel?.text = "Migrating: \(progress.localizedDescription)"
-        self.organismLabel?.text = "Incremental step \(progress.localizedAdditionalDescription)"
+        self.organismLabel?.text = "Progressive step \(progress.localizedAdditionalDescription)"
     }
     
     private func updateDisplay(reloadData reloadData: Bool, scrollToSelection: Bool, animated: Bool) {
@@ -285,7 +294,7 @@ class MigrationsDemoViewController: UIViewController {
         }
         
         self.titleLabel?.text = organismType
-        self.organismLabel?.text = "\n".join(lines)
+        self.organismLabel?.text = lines.joinWithSeparator("\n")
         self.progressView?.progress = 0
         
         self.headerContainer?.setNeedsLayout()
@@ -355,16 +364,16 @@ extension MigrationsDemoViewController: UITableViewDataSource, UITableViewDelega
         cell.dnaLabel?.text = "DNA: \(dna)"
         cell.mutateButtonHandler = { [weak self] _ -> Void in
             
-            guard let strongSelf = self,
-                let dataStack = strongSelf.dataStack,
-                let organism = strongSelf.listMonitor?[indexPath] else {
+            guard let `self` = self,
+                let dataStack = self.dataStack,
+                let organism = self.listMonitor?[indexPath] else {
                     
                     return
             }
             
-            strongSelf.setSelectedIndexPath(indexPath, scrollToSelection: false)
-            strongSelf.setEnabled(false)
-            dataStack.beginAsynchronous { (transaction) -> Void in
+            self.setSelectedIndexPath(indexPath, scrollToSelection: false)
+            self.setEnabled(false)
+            dataStack.beginAsynchronous { [weak self] (transaction) -> Void in
                 
                 let organism = transaction.edit(organism) as! OrganismProtocol
                 organism.mutate()

CoreStoreDemo/CoreStoreDemo/MIgrations Demo/OrganismProtocol.swift

@@ -3,7 +3,7 @@
 //  CoreStoreDemo
 //
 //  Created by John Rommel Estropia on 2015/06/27.
-//  Copyright (c) 2015 John Rommel Estropia. All rights reserved.
+//  Copyright © 2015 John Rommel Estropia. All rights reserved.
 //
 
 import Foundation

CoreStoreDemo/CoreStoreDemo/MIgrations Demo/OrganismV1.swift

@@ -3,7 +3,7 @@
 //  CoreStoreDemo
 //
 //  Created by John Rommel Estropia on 2015/06/21.
-//  Copyright (c) 2015 John Rommel Estropia. All rights reserved.
+//  Copyright © 2015 John Rommel Estropia. All rights reserved.
 //
 
 import Foundation

CoreStoreDemo/CoreStoreDemo/MIgrations Demo/OrganismV2.swift

@@ -3,7 +3,7 @@
 //  CoreStoreDemo
 //
 //  Created by John Rommel Estropia on 2015/06/21.
-//  Copyright (c) 2015 John Rommel Estropia. All rights reserved.
+//  Copyright © 2015 John Rommel Estropia. All rights reserved.
 //
 
 import Foundation

CoreStoreDemo/CoreStoreDemo/MIgrations Demo/OrganismV2ToV3MigrationPolicy.swift

@@ -3,7 +3,7 @@
 //  CoreStoreDemo
 //
 //  Created by John Rommel Estropia on 2015/06/27.
-//  Copyright (c) 2015 John Rommel Estropia. All rights reserved.
+//  Copyright © 2015 John Rommel Estropia. All rights reserved.
 //
 
 import CoreData

CoreStoreDemo/CoreStoreDemo/MIgrations Demo/OrganismV3.swift

@@ -3,7 +3,7 @@
 //  CoreStoreDemo
 //
 //  Created by John Rommel Estropia on 2015/06/27.
-//  Copyright (c) 2015 John Rommel Estropia. All rights reserved.
+//  Copyright © 2015 John Rommel Estropia. All rights reserved.
 //
 
 import Foundation

CoreStoreDemo/CoreStoreDemo/Stack Setup Demo/FemaleAccount.swift

@@ -3,7 +3,7 @@
 //  CoreStoreDemo
 //
 //  Created by John Rommel Estropia on 2015/06/06.
-//  Copyright (c) 2015 John Rommel Estropia. All rights reserved.
+//  Copyright © 2015 John Rommel Estropia. All rights reserved.
 //
 
 import Foundation

CoreStoreDemo/CoreStoreDemo/Stack Setup Demo/MaleAccount.swift

@@ -3,7 +3,7 @@
 //  CoreStoreDemo
 //
 //  Created by John Rommel Estropia on 2015/06/06.
-//  Copyright (c) 2015 John Rommel Estropia. All rights reserved.
+//  Copyright © 2015 John Rommel Estropia. All rights reserved.
 //
 
 import Foundation

CoreStoreDemo/CoreStoreDemo/Stack Setup Demo/StackSetupDemoViewController.swift

@@ -3,7 +3,7 @@
 //  CoreStoreDemo
 //
 //  Created by John Rommel Estropia on 2015/05/24.
-//  Copyright (c) 2015 John Rommel Estropia. All rights reserved.
+//  Copyright © 2015 John Rommel Estropia. All rights reserved.
 //
 
 import UIKit
@@ -18,15 +18,19 @@ private struct Static {
     static let facebookStack: DataStack = {
         
         let dataStack = DataStack(modelName: "StackSetupDemo")
-        try! dataStack.addSQLiteStoreAndWait(
-            fileName: "AccountsDemo_FB_Male.sqlite",
-            configuration: maleConfiguration,
-            resetStoreOnModelMismatch: true
+        try! dataStack.addStorageAndWait(
+            SQLiteStore(
+                fileName: "AccountsDemo_FB_Male.sqlite",
+                configuration: maleConfiguration,
+                localStorageOptions: .RecreateStoreOnModelMismatch
+            )
         )
-        try! dataStack.addSQLiteStoreAndWait(
-            fileName: "AccountsDemo_FB_Female.sqlite",
-            configuration: femaleConfiguration,
-            resetStoreOnModelMismatch: true
+        try! dataStack.addStorageAndWait(
+            SQLiteStore(
+                fileName: "AccountsDemo_FB_Female.sqlite",
+                configuration: femaleConfiguration,
+                localStorageOptions: .RecreateStoreOnModelMismatch
+            )
         )
         
         dataStack.beginSynchronous { (transaction) -> Void in
@@ -43,7 +47,7 @@ private struct Static {
             account2.name = "Jane Doe HCD"
             account2.friends = 314
             
-            transaction.commit()
+            transaction.commitAndWait()
         }
         
         return dataStack
@@ -52,15 +56,19 @@ private struct Static {
     static let twitterStack: DataStack = {
         
         let dataStack = DataStack(modelName: "StackSetupDemo")
-        try! dataStack.addSQLiteStoreAndWait(
-            fileName: "AccountsDemo_TW_Male.sqlite",
-            configuration: maleConfiguration,
-            resetStoreOnModelMismatch: true
+        try! dataStack.addStorageAndWait(
+            SQLiteStore(
+                fileName: "AccountsDemo_TW_Male.sqlite",
+                configuration: maleConfiguration,
+                localStorageOptions: .RecreateStoreOnModelMismatch
+            )
         )
-        try! dataStack.addSQLiteStoreAndWait(
-            fileName: "AccountsDemo_TW_Female.sqlite",
-            configuration: femaleConfiguration,
-            resetStoreOnModelMismatch: true
+        try! dataStack.addStorageAndWait(
+            SQLiteStore(
+                fileName: "AccountsDemo_TW_Female.sqlite",
+                configuration: femaleConfiguration,
+                localStorageOptions: .RecreateStoreOnModelMismatch
+            )
         )
         
         dataStack.beginSynchronous { (transaction) -> Void in
@@ -77,7 +85,7 @@ private struct Static {
             account2.name = "#janedoe_hcd"
             account2.friends = 100
             
-            transaction.commit()
+            transaction.commitAndWait()
         }
         
         return dataStack

CoreStoreDemo/CoreStoreDemo/Stack Setup Demo/UserAccount.swift

@@ -3,7 +3,7 @@
 //  CoreStoreDemo
 //
 //  Created by John Rommel Estropia on 2015/05/24.
-//  Copyright (c) 2015 John Rommel Estropia. All rights reserved.
+//  Copyright © 2015 John Rommel Estropia. All rights reserved.
 //
 
 import Foundation

CoreStoreDemo/CoreStoreDemo/Transactions Demo/Place.swift

@@ -3,7 +3,7 @@
 //  CoreStoreDemo
 //
 //  Created by John Rommel Estropia on 2015/05/24.
-//  Copyright (c) 2015 John Rommel Estropia. All rights reserved.
+//  Copyright © 2015 John Rommel Estropia. All rights reserved.
 //
 
 import Foundation

CoreStoreDemo/CoreStoreDemo/Transactions Demo/TransactionsDemoViewController.swift

@@ -3,7 +3,7 @@
 //  CoreStoreDemo
 //
 //  Created by John Rommel Estropia on 2015/05/24.
-//  Copyright (c) 2015 John Rommel Estropia. All rights reserved.
+//  Copyright © 2015 John Rommel Estropia. All rights reserved.
 //
 
 import UIKit
@@ -18,10 +18,12 @@ private struct Static {
     
     static let placeController: ObjectMonitor<Place> = {
         
-        try! CoreStore.addSQLiteStoreAndWait(
-            fileName: "PlaceDemo.sqlite",
-            configuration: "TransactionsDemo",
-            resetStoreOnModelMismatch: true
+        try! CoreStore.addStorageAndWait(
+            SQLiteStore(
+                fileName: "PlaceDemo.sqlite",
+                configuration: "TransactionsDemo",
+                localStorageOptions: .RecreateStoreOnModelMismatch
+            )
         )
         
         var place = CoreStore.fetchOne(From(Place))
@@ -32,7 +34,7 @@ private struct Static {
                 let place = transaction.create(Into(Place))
                 place.setInitialValues()
                 
-                transaction.commit()
+                transaction.commitAndWait()
             }
             place = CoreStore.fetchOne(From(Place))
         }
@@ -60,7 +62,10 @@ class TransactionsDemoViewController: UIViewController, MKMapViewDelegate, Objec
         
         super.viewDidLoad()
         
-        let longPressGesture = UILongPressGestureRecognizer(target: self, action: "longPressGestureRecognized:")
+        let longPressGesture = UILongPressGestureRecognizer(
+            target: self,
+            action: #selector(self.longPressGestureRecognized(_:))
+        )
         self.mapView?.addGestureRecognizer(longPressGesture)
         
         Static.placeController.addObserver(self)
@@ -68,7 +73,7 @@ class TransactionsDemoViewController: UIViewController, MKMapViewDelegate, Objec
         self.navigationItem.rightBarButtonItem = UIBarButtonItem(
             barButtonSystemItem: .Refresh,
             target: self,
-            action: "refreshButtonTapped:"
+            action: #selector(self.refreshButtonTapped(_:))
         )
     }
     
@@ -78,7 +83,7 @@ class TransactionsDemoViewController: UIViewController, MKMapViewDelegate, Objec
         
         let alert = UIAlertController(
             title: "Transactions Demo",
-            message: "This demo shows how to use the 3 types of transactions to save updates: synchronous, asynchronous, and detached.\n\nTap and hold on the map to change the pin location.",
+            message: "This demo shows how to use the 3 types of transactions to save updates: synchronous, asynchronous, and unsafe.\n\nTap and hold on the map to change the pin location.",
             preferredStyle: .Alert
         )
         alert.addAction(UIAlertAction(title: "OK", style: .Cancel, handler: nil))
@@ -159,13 +164,14 @@ class TransactionsDemoViewController: UIViewController, MKMapViewDelegate, Objec
         
         if let mapView = self.mapView, let gesture = sender as? UILongPressGestureRecognizer where gesture.state == .Began {
             
+            let coordinate = mapView.convertPoint(
+                gesture.locationInView(mapView),
+                toCoordinateFromView: mapView
+            )
             CoreStore.beginAsynchronous { (transaction) -> Void in
                 
                 let place = transaction.edit(Static.placeController.object)
-                place?.coordinate = mapView.convertPoint(
-                    gesture.locationInView(mapView),
-                    toCoordinateFromView: mapView
-                )
+                place?.coordinate = coordinate
                 transaction.commit { (_) -> Void in }
             }
         }
@@ -177,13 +183,13 @@ class TransactionsDemoViewController: UIViewController, MKMapViewDelegate, Objec
             
             let place = transaction.edit(Static.placeController.object)
             place?.setInitialValues()
-            transaction.commit()
+            transaction.commitAndWait()
         }
     }
     
     func geocodePlace(place: Place) {
         
-        let transaction = CoreStore.beginDetached()
+        let transaction = CoreStore.beginUnsafe()
         
         self.geocoder?.cancelGeocode()
         

CoreStoreTests/BaseTests/BaseTestCase.swift

@@ -0,0 +1,201 @@
+//
+//  BaseTestCase.swift
+//  CoreStore
+//
+//  Copyright © 2016 John Rommel Estropia
+//
+//  Permission is hereby granted, free of charge, to any person obtaining a copy
+//  of this software and associated documentation files (the "Software"), to deal
+//  in the Software without restriction, including without limitation the rights
+//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+//  copies of the Software, and to permit persons to whom the Software is
+//  furnished to do so, subject to the following conditions:
+//
+//  The above copyright notice and this permission notice shall be included in all
+//  copies or substantial portions of the Software.
+//
+//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+//  SOFTWARE.
+//
+
+import XCTest
+
+@testable
+import CoreStore
+
+
+// MARK: - BaseTestCase
+
+class BaseTestCase: XCTestCase {
+    
+    // MARK: Internal
+    
+    @nonobjc
+    func prepareStack<T>(configurations configurations: [String?] = [nil], @noescape _ closure: (dataStack: DataStack) -> T) -> T {
+        
+        let stack = DataStack(
+            modelName: "Model",
+            bundle: NSBundle(forClass: self.dynamicType)
+        )
+        do {
+            
+            try configurations.forEach {
+                
+                try stack.addStorageAndWait(
+                    SQLiteStore(
+                        fileURL: SQLiteStore.defaultRootDirectory
+                            .URLByAppendingPathComponent(NSUUID().UUIDString)
+                            .URLByAppendingPathComponent("\(self.dynamicType)_\(($0 ?? "-null-")).sqlite"),
+                        configuration: $0,
+                        localStorageOptions: .RecreateStoreOnModelMismatch
+                    )
+                )
+            }
+        }
+        catch let error as NSError {
+            
+            XCTFail(error.coreStoreDumpString)
+        }
+        return closure(dataStack: stack)
+    }
+    
+    @nonobjc
+    func expectLogger<T>(expectations: [TestLogger.Expectation], @noescape closure: () -> T) -> T {
+        
+        CoreStore.logger = TestLogger(self.prepareLoggerExpectations(expectations))
+        defer {
+            
+            self.checkExpectationsImmediately()
+            CoreStore.logger = TestLogger([:])
+        }
+        return closure()
+    }
+    
+    @nonobjc
+    func expectLogger(expectations: [TestLogger.Expectation: XCTestExpectation]) {
+        
+        CoreStore.logger = TestLogger(expectations)
+    }
+    
+    @nonobjc
+    func prepareLoggerExpectations(expectations: [TestLogger.Expectation]) -> [TestLogger.Expectation: XCTestExpectation] {
+        
+        var testExpectations: [TestLogger.Expectation: XCTestExpectation] = [:]
+        for expectation in expectations {
+            
+            testExpectations[expectation] = self.expectationWithDescription("Logger Expectation: \(expectation)")
+        }
+        return testExpectations
+    }
+    
+    @nonobjc
+    func checkExpectationsImmediately() {
+        
+        self.waitForExpectationsWithTimeout(0, handler: nil)
+    }
+    
+    @nonobjc
+    func waitAndCheckExpectations() {
+        
+        self.waitForExpectationsWithTimeout(10, handler: nil)
+    }
+    
+    // MARK: XCTestCase
+    
+    override func setUp() {
+        
+        super.setUp()
+        self.deleteStores()
+        CoreStore.logger = TestLogger([:])
+    }
+    
+    override func tearDown() {
+        
+        CoreStore.logger = DefaultLogger()
+        self.deleteStores()
+        super.tearDown()
+    }
+    
+    
+    // MARK: Private
+    
+    private func deleteStores() {
+        
+        _ = try? NSFileManager.defaultManager().removeItemAtURL(SQLiteStore.defaultRootDirectory)
+    }
+}
+
+
+// MARK: - TestLogger
+
+class TestLogger: CoreStoreLogger {
+    
+    enum Expectation {
+        
+        case LogWarning
+        case LogFatal
+        case LogError
+        case AssertionFailure
+        case FatalError
+    }
+    
+    init(_ expectations: [Expectation: XCTestExpectation]) {
+        
+        self.expectations = expectations
+    }
+    
+    
+    // MARK: CoreStoreLogger
+    
+    func log(level level: LogLevel, message: String, fileName: StaticString, lineNumber: Int, functionName: StaticString) {
+        
+        switch level {
+            
+        case .Warning:  self.fulfill(.LogWarning)
+        case .Fatal:    self.fulfill(.LogFatal)
+        default:        break
+        }
+    }
+    
+    func log(error error: CoreStoreError, message: String, fileName: StaticString, lineNumber: Int, functionName: StaticString) {
+        
+        self.fulfill(.LogError)
+    }
+    
+    func assert(@autoclosure condition: () -> Bool, @autoclosure message: () -> String, fileName: StaticString, lineNumber: Int, functionName: StaticString) {
+        
+        if condition() {
+            
+            return
+        }
+        self.fulfill(.AssertionFailure)
+    }
+    
+    func abort(message: String, fileName: StaticString, lineNumber: Int, functionName: StaticString) {
+        
+        self.fulfill(.FatalError)
+    }
+    
+    
+    // MARK: Private
+    
+    private var expectations: [Expectation: XCTestExpectation]
+    
+    private func fulfill(expectation: Expectation) {
+        
+        if let instance = self.expectations[expectation] {
+            
+            instance.fulfill()
+            self.expectations[expectation] = nil
+        }
+        else {
+            
+            XCTFail("Unexpected Logger Action: \(expectation)")
+        }
+    }
+}

CoreStoreTests/BaseTests/BaseTestDataTestCase.swift

@@ -0,0 +1,76 @@
+//
+//  BaseTestDataTestCase.swift
+//  CoreStore
+//
+//  Created by John Rommel Estropia on 2016/06/11.
+//  Copyright © 2016 John Rommel Estropia. All rights reserved.
+//
+
+import Foundation
+
+@testable
+import CoreStore
+
+
+// MARK: - BaseTestDataTestCase
+
+class BaseTestDataTestCase: BaseTestCase {
+    
+    @nonobjc
+    let dateFormatter: NSDateFormatter = {
+        
+        let formatter = NSDateFormatter()
+        formatter.locale = NSLocale(localeIdentifier: "en_US_POSIX")
+        formatter.timeZone = NSTimeZone(name: "UTC")
+        formatter.calendar = NSCalendar(identifier: NSCalendarIdentifierGregorian)
+        formatter.dateFormat = "yyyy'-'MM'-'dd'T'HH':'mm':'ssZ"
+        return formatter
+    }()
+    
+    @nonobjc
+    func prepareTestDataForStack(stack: DataStack, configurations: [String?] = [nil]) {
+        
+        stack.beginSynchronous { (transaction) in
+            
+            for (configurationIndex, configuration) in configurations.enumerate() {
+                
+                let configurationOrdinal = configurationIndex + 1
+                if configuration == nil || configuration == "Config1" {
+                    
+                    for idIndex in 1 ... 5 {
+                        
+                        let object = transaction.create(Into<TestEntity1>(configuration))
+                        object.testEntityID = NSNumber(integer: (configurationOrdinal * 100) + idIndex)
+                        
+                        object.testNumber = idIndex
+                        object.testDate = self.dateFormatter.dateFromString("2000-\(configurationOrdinal)-\(idIndex)T00:00:00Z")
+                        object.testBoolean = (idIndex % 2) == 1
+                        object.testDecimal = NSDecimalNumber(string: "\(idIndex)")
+                        
+                        let string = "\(configuration ?? "nil"):TestEntity1:\(idIndex)"
+                        object.testString = string
+                        object.testData = (string as NSString).dataUsingEncoding(NSUTF8StringEncoding)
+                    }
+                }
+                if configuration == nil || configuration == "Config2" {
+                    
+                    for idIndex in 1 ... 5 {
+                        
+                        let object = transaction.create(Into<TestEntity2>(configuration))
+                        object.testEntityID = NSNumber(integer: (configurationOrdinal * 200) + idIndex)
+                        
+                        object.testNumber = idIndex
+                        object.testDate = self.dateFormatter.dateFromString("2000-\(configurationOrdinal)-\(idIndex)T00:00:00Z")
+                        object.testBoolean = (idIndex % 2) == 1
+                        object.testDecimal = NSDecimalNumber(string: "\(idIndex)")
+                        
+                        let string = "\(configuration ?? "nil"):TestEntity2:\(idIndex)"
+                        object.testString = string
+                        object.testData = (string as NSString).dataUsingEncoding(NSUTF8StringEncoding)
+                    }
+                }
+            }
+            transaction.commitAndWait()
+        }
+    }
+}

CoreStoreTests/BridgingTests.h

@@ -0,0 +1,30 @@
+//
+//  BridgingTests.h
+//  CoreStore
+//
+//  Copyright © 2016 John Rommel Estropia
+//
+//  Permission is hereby granted, free of charge, to any person obtaining a copy
+//  of this software and associated documentation files (the "Software"), to deal
+//  in the Software without restriction, including without limitation the rights
+//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+//  copies of the Software, and to permit persons to whom the Software is
+//  furnished to do so, subject to the following conditions:
+//
+//  The above copyright notice and this permission notice shall be included in all
+//  copies or substantial portions of the Software.
+//
+//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+//  SOFTWARE.
+//
+
+#import <XCTest/XCTest.h>
+
+@interface BridgingTests : XCTestCase
+
+@end

CoreStoreTests/BridgingTests.m

@@ -0,0 +1,200 @@
+//
+//  BridgingTests.m
+//  CoreStore
+//
+//  Copyright © 2016 John Rommel Estropia
+//
+//  Permission is hereby granted, free of charge, to any person obtaining a copy
+//  of this software and associated documentation files (the "Software"), to deal
+//  in the Software without restriction, including without limitation the rights
+//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+//  copies of the Software, and to permit persons to whom the Software is
+//  furnished to do so, subject to the following conditions:
+//
+//  The above copyright notice and this permission notice shall be included in all
+//  copies or substantial portions of the Software.
+//
+//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+//  SOFTWARE.
+//
+
+#import "BridgingTests.h"
+#import <CoreStore/CoreStore.h>
+#import <CoreStore/CoreStore-Swift.h>
+#import "CoreStoreTests-Swift.h"
+
+@import CoreData;
+
+// MARK: - BridgingTests
+
+@implementation BridgingTests
+
+- (void)test_ThatFlags_HaveCorrectValues {
+    
+    XCTAssertEqual(CSLocalStorageOptionsNone, 0);
+    XCTAssertEqual(CSLocalStorageOptionsRecreateStoreOnModelMismatch, 1);
+    XCTAssertEqual(CSLocalStorageOptionsPreventProgressiveMigration, 2);
+    XCTAssertEqual(CSLocalStorageOptionsAllowSynchronousLightweightMigration, 4);
+}
+
+- (void)test_ThatKeyPaths_AreCorrect {
+    
+    XCTAssertEqualObjects(CSKeyPath(TestEntity1, testNumber), @"testNumber");
+    XCTAssertEqualObjects(CSKeyPath(TestEntity1, testString), @"testString");
+    XCTAssertEqualObjects(CSKeyPathOperator(count, TestEntity1, testString), @"@count.testString");
+    XCTAssertEqualObjects(CSKeyPathOperator(max, TestEntity1, testNumber), @"@max.testNumber");
+}
+
+- (void)test_ThatFromClauses_BridgeCorrectly {
+    
+    {
+        CSFrom *from = CSFromClass([TestEntity1 class]);
+        XCTAssertEqualObjects(from.entityClass, [TestEntity1 class]);
+        XCTAssertNil(from.configurations);
+    }
+    {
+        CSFrom *from = CSFromClass([TestEntity1 class], [NSNull null]);
+        XCTAssertEqualObjects(from.entityClass, [TestEntity1 class]);
+        
+        NSArray *configurations = @[[NSNull null]];
+        XCTAssertEqualObjects(from.configurations, configurations);
+    }
+    {
+        CSFrom *from = CSFromClass([TestEntity1 class], @"Config1");
+        XCTAssertEqualObjects(from.entityClass, [TestEntity1 class]);
+        
+        NSArray *configurations = @[@"Config1"];
+        XCTAssertEqualObjects(from.configurations, configurations);
+    }
+    {
+        CSFrom *from = CSFromClass([TestEntity1 class], @[[NSNull null], @"Config2"]);
+        XCTAssertEqualObjects(from.entityClass, [TestEntity1 class]);
+        
+        NSArray *configurations = @[[NSNull null], @"Config2"];
+        XCTAssertEqualObjects(from.configurations, configurations);
+    }
+}
+
+- (void)test_ThatWhereClauses_BridgeCorrectly {
+    
+    {
+        CSWhere *where = CSWhereFormat(@"%K == %@", @"key", @"value");
+        NSPredicate *predicate = [NSPredicate predicateWithFormat:@"%K == %@", @"key", @"value"];
+        XCTAssertEqualObjects(where.predicate, predicate);
+    }
+    {
+        CSWhere *where = CSWhereValue(YES);
+        NSPredicate *predicate = [NSPredicate predicateWithValue:YES];
+        XCTAssertEqualObjects(where.predicate, predicate);
+    }
+    {
+        CSWhere *where = CSWherePredicate([NSPredicate predicateWithFormat:@"%K == %@", @"key", @"value"]);
+        NSPredicate *predicate = [NSPredicate predicateWithFormat:@"%K == %@", @"key", @"value"];
+        XCTAssertEqualObjects(where.predicate, predicate);
+    }
+}
+
+- (void)test_ThatOrderByClauses_BridgeCorrectly {
+    
+    {
+        CSOrderBy *orderBy = CSOrderByKey(CSSortAscending(@"key"));
+        XCTAssertEqualObjects(orderBy.sortDescriptors, @[[NSSortDescriptor sortDescriptorWithKey:@"key" ascending:YES]]);
+    }
+    {
+        CSOrderBy *orderBy = CSOrderByKey(CSSortDescending(@"key"));
+        XCTAssertEqualObjects(orderBy.sortDescriptors, @[[NSSortDescriptor sortDescriptorWithKey:@"key" ascending:NO]]);
+    }
+    {
+        CSOrderBy *orderBy = CSOrderByKeys(CSSortAscending(@"key1"), CSSortDescending(@"key2"), nil);
+        NSArray *sortDescriptors = @[[NSSortDescriptor sortDescriptorWithKey:@"key1" ascending:YES],
+                                     [NSSortDescriptor sortDescriptorWithKey:@"key2" ascending:NO]];
+        XCTAssertEqualObjects(orderBy.sortDescriptors, sortDescriptors);
+    }
+}
+
+- (void)test_ThatGroupByClauses_BridgeCorrectly {
+    
+    {
+        CSGroupBy *groupBy = CSGroupByKeyPath(@"key");
+        XCTAssertEqualObjects(groupBy.keyPaths, @[@"key"]);
+    }
+    {
+        CSGroupBy *groupBy = CSGroupByKeyPaths(@[@"key1", @"key2"]);
+        
+        NSArray *keyPaths = @[@"key1", @"key2"];
+        XCTAssertEqualObjects(groupBy.keyPaths, keyPaths);
+    }
+}
+
+- (void)test_ThatTweakClauses_BridgeCorrectly {
+    
+    CSTweak *tweak = CSTweakRequest(^(NSFetchRequest * _Nonnull fetchRequest) {
+        
+        fetchRequest.fetchLimit = 100;
+    });
+    NSFetchRequest *request = [NSFetchRequest new];
+    tweak.block(request);
+    XCTAssertEqual(request.fetchLimit, 100);
+}
+
+- (void)test_ThatIntoClauses_BridgeCorrectly {
+    
+    {
+        CSInto *into = CSIntoClass([TestEntity1 class]);
+        XCTAssertEqualObjects(into.entityClass, [TestEntity1 class]);
+    }
+    {
+        CSInto *into = CSIntoClass([TestEntity1 class], [NSNull null]);
+        XCTAssertEqualObjects(into.entityClass, [TestEntity1 class]);
+        XCTAssertNil(into.configuration);
+    }
+    {
+        CSInto *into = CSIntoClass([TestEntity1 class], @"Config1");
+        XCTAssertEqualObjects(into.entityClass, [TestEntity1 class]);
+        XCTAssertEqualObjects(into.configuration, @"Config1");
+    }
+}
+
+- (void)test_ThatDataStacks_BridgeCorrectly {
+    
+    CSDataStack *dataStack = [[CSDataStack alloc]
+                              initWithModelName:@"Model"
+                              bundle:[NSBundle bundleForClass:[self class]]
+                              versionChain:nil];
+    XCTAssertNotNil(dataStack);
+    
+    [CSCoreStore setDefaultStack:dataStack];
+    XCTAssertTrue([dataStack isEqual:[CSCoreStore defaultStack]]);
+}
+
+- (void)test_ThatStorages_BridgeCorrectly {
+    
+    NSError *memoryError;
+    CSInMemoryStore *memoryStorage = [CSCoreStore
+                                      addInMemoryStorageAndWait:[CSInMemoryStore new]
+                                      error:&memoryError];
+    XCTAssertNotNil(memoryStorage);
+    XCTAssertEqualObjects([[memoryStorage class] storeType], [CSInMemoryStore storeType]);
+    XCTAssertEqualObjects([[memoryStorage class] storeType], NSInMemoryStoreType);
+    XCTAssertNil(memoryStorage.configuration);
+    XCTAssertNil(memoryStorage.storeOptions);
+    XCTAssertNil(memoryError);
+    
+    NSError *sqliteError;
+    CSSQLiteStore *sqliteStorage = [CSCoreStore
+                                    addSQLiteStorageAndWait:[CSSQLiteStore new]
+                                    error:&sqliteError];
+    XCTAssertNotNil(sqliteStorage);
+    XCTAssertEqualObjects([[sqliteStorage class] storeType], [CSSQLiteStore storeType]);
+    XCTAssertEqualObjects([[sqliteStorage class] storeType], NSSQLiteStoreType);
+    XCTAssertNil(sqliteStorage.configuration);
+    XCTAssertEqualObjects(sqliteStorage.storeOptions, @{ NSSQLitePragmasOption: @{ @"journal_mode": @"WAL" } });
+    XCTAssertNil(sqliteError);
+}
+
+@end

CoreStoreTests/CoreStoreTests-Bridging-Header.h

@@ -0,0 +1,5 @@
+//
+//  Use this file to import your target's public headers that you would like to expose to Swift.
+//
+
+#import "BridgingTests.h"

CoreStoreTests/CoreStoreTests.swift

@@ -1,386 +0,0 @@
-//
-//  CoreStoreTests.swift
-//  CoreStoreTests
-//
-//  Copyright (c) 2014 John Rommel Estropia
-//
-//  Permission is hereby granted, free of charge, to any person obtaining a copy
-//  of this software and associated documentation files (the "Software"), to deal
-//  in the Software without restriction, including without limitation the rights
-//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-//  copies of the Software, and to permit persons to whom the Software is
-//  furnished to do so, subject to the following conditions:
-//
-//  The above copyright notice and this permission notice shall be included in all
-//  copies or substantial portions of the Software.
-//
-//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-//  SOFTWARE.
-//
-
-import UIKit
-import XCTest
-
-@testable
-import CoreStore
-
-class CoreStoreTests: XCTestCase {
-    
-    override func setUp() {
-        
-        super.setUp()
-        self.deleteStores()
-    }
-    
-    override func tearDown() {
-        
-        self.deleteStores()
-        super.tearDown()
-    }
-    
-    func testMigrationChains() {
-        
-        let emptyChain: MigrationChain = nil
-        XCTAssertTrue(emptyChain.valid, "emptyChain.valid")
-        XCTAssertTrue(emptyChain.empty, "emptyChain.empty")
-        
-        let normalChain: MigrationChain = "version1"
-        XCTAssertTrue(normalChain.valid, "normalChain.valid")
-        XCTAssertTrue(normalChain.empty, "normalChain.empty")
-        
-        let linearChain: MigrationChain = ["version1", "version2", "version3", "version4"]
-        XCTAssertTrue(linearChain.valid, "linearChain.valid")
-        XCTAssertFalse(linearChain.empty, "linearChain.empty")
-        
-        let treeChain: MigrationChain = [
-            "version1": "version4",
-            "version2": "version3",
-            "version3": "version4"
-        ]
-        XCTAssertTrue(treeChain.valid, "treeChain.valid")
-        XCTAssertFalse(treeChain.empty, "treeChain.empty")
-
-        // The cases below will trigger assertion failures internally
-        
-//        let linearLoopChain: MigrationChain = ["version1", "version2", "version1", "version3", "version4"]
-//        XCTAssertFalse(linearLoopChain.valid, "linearLoopChain.valid")
-//        
-//        let treeAmbiguousChain: MigrationChain = [
-//            "version1": "version4",
-//            "version2": "version3",
-//            "version1": "version2",
-//            "version3": "version4"
-//        ]
-//        XCTAssertFalse(treeAmbiguousChain.valid, "treeAmbiguousChain.valid")
-    }
-    
-    func testExample() {
-        
-        let stack = DataStack(modelName: "Model", bundle: NSBundle(forClass: self.dynamicType))
-        CoreStore.defaultStack = stack
-        XCTAssert(CoreStore.defaultStack === stack, "CoreStore.defaultStack === stack")
-        
-        do {
-            
-            try stack.addSQLiteStoreAndWait(fileName: "ConfigStore1.sqlite", configuration: "Config1", resetStoreOnModelMismatch: true)
-        }
-        catch let error as NSError {
-            
-            XCTFail(error.description)
-        }
-        
-        do {
-            
-            try stack.addSQLiteStoreAndWait(fileName: "ConfigStore2.sqlite", configuration: "Config2", resetStoreOnModelMismatch: true)
-        }
-        catch let error as NSError {
-            
-            XCTFail(error.description)
-        }
-        
-        let detachedTransaction = CoreStore.beginDetached()
-        
-        let createExpectation = self.expectationWithDescription("Entity creation")
-        CoreStore.beginAsynchronous { (transaction) -> Void in
-        
-            let obj1 = transaction.create(Into(TestEntity1))
-            obj1.testEntityID = 1
-            obj1.testString = "lololol"
-            obj1.testNumber = 42
-            obj1.testDate = NSDate()
-            
-            let count = transaction.queryValue(
-                From<TestEntity1>(),
-                Select<Int>(.Count("testNumber"))
-            )
-            XCTAssertTrue(count == 0, "count == 0 (actual: \(count))") // counts only objects in store
-            
-            let obj2 = transaction.create(Into<TestEntity2>())
-            obj2.testEntityID = 2
-            obj2.testString = "hahaha"
-            obj2.testNumber = 100
-            obj2.testDate = NSDate()
-            
-            let obj3 = transaction.create(Into<TestEntity2>("Config2"))
-            obj3.testEntityID = 3
-            obj3.testString = "hahaha"
-            obj3.testNumber = 90
-            obj3.testDate = NSDate()
-            
-            let obj4 = transaction.create(Into(TestEntity2.self, "Config2"))
-            obj4.testEntityID = 5
-            obj4.testString = "hohoho"
-            obj4.testNumber = 80
-            obj4.testDate = NSDate()
-            
-        
-            transaction.beginSynchronous { (transaction) -> Void in
-                
-                let obj4 = transaction.create(Into<TestEntity2>())
-                obj4.testEntityID = 4
-                obj4.testString = "hehehehe"
-                obj4.testNumber = 80
-                obj4.testDate = NSDate()
-                
-                let objs4test = transaction.fetchOne(
-                    From<TestEntity2>("Config2"),
-                    Where("testEntityID", isEqualTo: 4),
-                    Tweak { (fetchRequest) -> Void in
-                        
-                        fetchRequest.includesPendingChanges = true
-                    }
-                )
-                XCTAssertNotNil(objs4test, "objs4test != nil")
-                
-                let objs5test = transaction.fetchOne(
-                    From(TestEntity2),
-                    Where("testEntityID", isEqualTo: 4),
-                    Tweak { (fetchRequest) -> Void in
-                        
-                        fetchRequest.includesPendingChanges = false
-                    }
-                )
-                XCTAssertNil(objs5test, "objs5test == nil")
-                
-                // Dont commit1
-            }
-            
-            transaction.commit { (result) -> Void in
-                
-                let objs4test = CoreStore.fetchOne(
-                    From(TestEntity2),
-                    Where("testEntityID", isEqualTo: 4),
-                    Tweak { (fetchRequest) -> Void in
-                        
-                        fetchRequest.includesPendingChanges = false
-                    }
-                )
-                XCTAssertNil(objs4test, "objs4test == nil")
-                
-                let objs5test = detachedTransaction.fetchCount(From(TestEntity2))
-                XCTAssertTrue(objs5test == 3, "objs5test == 3")
-                
-                XCTAssertTrue(NSThread.isMainThread(), "NSThread.isMainThread()")
-                switch result {
-                    
-                case .Success(let hasChanges):
-                    XCTAssertTrue(hasChanges, "hasChanges == true")
-                    createExpectation.fulfill()
-                    
-                case .Failure(let error):
-                    XCTFail(error.description)
-                }
-            }
-        }
-        
-        let queryExpectation = self.expectationWithDescription("Query creation")
-        CoreStore.beginAsynchronous { (transaction) -> Void in
-            
-            let obj1 = transaction.fetchOne(From(TestEntity1))
-            XCTAssertNotNil(obj1, "obj1 != nil")
-            
-            var orderBy = OrderBy(.Ascending("testEntityID"))
-            orderBy += OrderBy(.Descending("testString"))
-            let objs2 = transaction.fetchAll(
-                From(TestEntity2),
-                Where("testNumber", isEqualTo: 100) || Where("%K == %@", "testNumber", 90),
-                orderBy,
-                Tweak { (fetchRequest) -> Void in
-                    
-                    fetchRequest.includesPendingChanges = true
-                }
-            )
-            XCTAssertNotNil(objs2, "objs2 != nil")
-            XCTAssertTrue(objs2?.count == 2, "objs2?.count == 2")
-            
-            transaction.commit { (result) -> Void in
-                
-                let counts = CoreStore.queryAttributes(
-                    From(TestEntity2),
-                    Select("testString", .Count("testString", As: "count")),
-                    GroupBy("testString")
-                )
-                print(counts)
-                
-                XCTAssertTrue(NSThread.isMainThread(), "NSThread.isMainThread()")
-                switch result {
-                    
-                case .Success(let hasChanges):
-                    XCTAssertFalse(hasChanges, "hasChanges == false")
-                    queryExpectation.fulfill()
-                    
-                case .Failure(let error):
-                    XCTFail(error.description)
-                }
-            }
-        }
-        
-        self.waitForExpectationsWithTimeout(100, handler: nil)
-        
-        let max1 = CoreStore.queryValue(
-            From(TestEntity2),
-            Select<Int>(.Maximum("testNumber"))
-        )
-        XCTAssertTrue(max1 == 100, "max == 100 (actual: \(max1))")
-        
-        let max2 = CoreStore.queryValue(
-            From(TestEntity2),
-            Select<NSNumber>(.Maximum("testNumber")),
-            Where("%K > %@", "testEntityID", 2)
-        )
-        XCTAssertTrue(max2 == 90, "max == 90 (actual: \(max2))")
-        
-        CoreStore.beginSynchronous { (transaction) -> Void in
-            
-            let numberOfDeletedObjects1 = transaction.deleteAll(From(TestEntity1))
-            XCTAssertTrue(numberOfDeletedObjects1 == 1, "numberOfDeletedObjects1 == 1 (actual: \(numberOfDeletedObjects1))")
-            
-            let numberOfDeletedObjects2 = transaction.deleteAll(
-                From(TestEntity2),
-                Where("%K > %@", "testEntityID", 2)
-            )
-            XCTAssertTrue(numberOfDeletedObjects2 == 2, "numberOfDeletedObjects2 == 2 (actual: \(numberOfDeletedObjects2))")
-            
-            transaction.commit()
-        }
-        
-        CoreStore.beginSynchronous({ (transaction) -> Void in
-            
-            if let obj = CoreStore.fetchOne(From(TestEntity2)) {
-                
-                let oldID = obj.testEntityID
-                obj.testEntityID = 0
-                obj.testEntityID = oldID
-            }
-            
-            transaction.commit()
-        })
-        
-        let objs1 = CoreStore.fetchAll(From(TestEntity1))
-        XCTAssertNotNil(objs1, "objs1 != nil")
-        XCTAssertTrue(objs1?.count == 0, "objs1?.count == 0")
-        
-        let objs2 = CoreStore.fetchAll(From(TestEntity2))
-        XCTAssertNotNil(objs2, "objs2 != nil")
-        XCTAssertTrue(objs2?.count == 1, "objs2?.count == 1")
-        
-        let detachedExpectation = self.expectationWithDescription("Query creation")
-        
-        let obj5 = detachedTransaction.create(Into<TestEntity1>("Config1"))
-        obj5.testEntityID = 5
-        obj5.testString = "hihihi"
-        obj5.testNumber = 70
-        obj5.testDate = NSDate()
-        
-        detachedTransaction.commit { (result) -> Void in
-            
-            XCTAssertTrue(NSThread.isMainThread(), "NSThread.isMainThread()")
-            switch result {
-                
-            case .Success(let hasChanges):
-                XCTAssertTrue(hasChanges, "hasChanges == true")
-                
-                CoreStore.beginSynchronous { (transaction) -> Void in
-                    
-                    let obj5Copy1 = transaction.edit(obj5)
-                    XCTAssertTrue(obj5.objectID == obj5Copy1?.objectID, "obj5.objectID == obj5Copy1?.objectID")
-                    XCTAssertFalse(obj5 == obj5Copy1, "obj5 == obj5Copy1")
-                    
-                    let obj5Copy2 = transaction.edit(Into(TestEntity1), obj5.objectID)
-                    XCTAssertTrue(obj5.objectID == obj5Copy2?.objectID, "obj5.objectID == obj5Copy2?.objectID")
-                    XCTAssertFalse(obj5 == obj5Copy2, "obj5 == obj5Copy2")
-                }
-                
-                let count: Int? = CoreStore.queryValue(
-                    From(TestEntity1),
-                    Select(.Count("testNumber"))
-                )
-                XCTAssertTrue(count == 1, "count == 1 (actual: \(count))")
-                
-                let obj6 = detachedTransaction.create(Into<TestEntity1>())
-                obj6.testEntityID = 6
-                obj6.testString = "huehuehue"
-                obj6.testNumber = 130
-                obj6.testDate = NSDate()
-                
-                detachedTransaction.commit { (result) -> Void in
-                    
-                    XCTAssertTrue(NSThread.isMainThread(), "NSThread.isMainThread()")
-                    switch result {
-                        
-                    case .Success(let hasChanges):
-                        XCTAssertTrue(hasChanges, "hasChanges == true")
-                        
-                        let count = CoreStore.queryValue(
-                            From(TestEntity1),
-                            Select<Int>(.Count("testNumber"))
-                        )
-                        XCTAssertTrue(count == 2, "count == 2 (actual: \(count))")
-                        
-                        
-                        CoreStore.beginSynchronous { (transaction) -> Void in
-                            
-                            let obj6 = transaction.edit(obj6)
-                            let obj5 = transaction.edit(obj5)
-                            transaction.delete(obj5, obj6)
-                            
-                            transaction.commit()
-                        }
-                        
-                        let count2 = CoreStore.queryValue(
-                            From(TestEntity1),
-                            Select<Int>(.Count("testNumber"))
-                        )
-                        XCTAssertTrue(count2 == 0, "count == 0 (actual: \(count2))")
-                        
-                        detachedExpectation.fulfill()
-                        
-                    case .Failure(let error):
-                        XCTFail(error.description)
-                    }
-                }
-                
-            case .Failure(let error):
-                XCTFail(error.description)
-            }
-        }
-        
-        self.waitForExpectationsWithTimeout(100, handler: nil)
-    }
-    
-    private func deleteStores() {
-        
-        do {
-            
-            try NSFileManager.defaultManager().removeItemAtURL(
-                NSFileManager.defaultManager().URLsForDirectory(.ApplicationSupportDirectory, inDomains: .UserDomainMask).first!
-            )
-        }
-        catch _ { }
-    }
-}

CoreStoreTests/ErrorTests.swift

@@ -0,0 +1,169 @@
+//
+//  ErrorTests.swift
+//  CoreStore
+//
+//  Copyright © 2016 John Rommel Estropia
+//
+//  Permission is hereby granted, free of charge, to any person obtaining a copy
+//  of this software and associated documentation files (the "Software"), to deal
+//  in the Software without restriction, including without limitation the rights
+//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+//  copies of the Software, and to permit persons to whom the Software is
+//  furnished to do so, subject to the following conditions:
+//
+//  The above copyright notice and this permission notice shall be included in all
+//  copies or substantial portions of the Software.
+//
+//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+//  SOFTWARE.
+//
+
+import XCTest
+
+@testable
+import CoreStore
+
+
+// MARK: - ErrorTests
+
+final class ErrorTests: XCTestCase {
+
+    @objc
+    dynamic func test_ThatUnknownErrors_BridgeCorrectly() {
+        
+        let error = CoreStoreError.Unknown
+        XCTAssertEqual((error as NSError).domain, CoreStoreErrorDomain)
+        XCTAssertEqual((error as NSError).code, CoreStoreErrorCode.UnknownError.rawValue)
+        
+        let userInfo: NSDictionary = [:]
+        
+        let objcError = error.bridgeToObjectiveC
+        XCTAssertEqual(error, objcError.bridgeToSwift)
+        XCTAssertEqual(objcError.domain, CoreStoreErrorDomain)
+        XCTAssertEqual(objcError.code, CoreStoreErrorCode.UnknownError.rawValue)
+        XCTAssertEqual(objcError.userInfo, userInfo)
+        
+        let objcError2 = objcError.bridgeToSwift.bridgeToObjectiveC
+        XCTAssertEqual(error, objcError2.bridgeToSwift)
+        XCTAssertEqual(objcError2.domain, CoreStoreErrorDomain)
+        XCTAssertEqual(objcError2.code, CoreStoreErrorCode.UnknownError.rawValue)
+        XCTAssertEqual(objcError2.userInfo, userInfo)
+    }
+    
+    @objc
+    dynamic func test_ThatDifferentStorageExistsAtURLErrors_BridgeCorrectly() {
+        
+        let dummyURL = NSURL(string: "file:///test1/test2.sqlite")!
+        
+        let error = CoreStoreError.DifferentStorageExistsAtURL(existingPersistentStoreURL: dummyURL)
+        XCTAssertEqual((error as NSError).domain, CoreStoreErrorDomain)
+        XCTAssertEqual((error as NSError).code, CoreStoreErrorCode.DifferentPersistentStoreExistsAtURL.rawValue)
+        
+        let userInfo: NSDictionary = [
+            "existingPersistentStoreURL": dummyURL
+        ]
+        let objcError = error.bridgeToObjectiveC
+        XCTAssertEqual(error, objcError.bridgeToSwift)
+        XCTAssertEqual(objcError.domain, CoreStoreErrorDomain)
+        XCTAssertEqual(objcError.code, CoreStoreErrorCode.DifferentPersistentStoreExistsAtURL.rawValue)
+        XCTAssertEqual(objcError.userInfo, userInfo)
+        
+        let objcError2 = objcError.bridgeToSwift.bridgeToObjectiveC
+        XCTAssertEqual(error, objcError2.bridgeToSwift)
+        XCTAssertEqual(objcError2.domain, CoreStoreErrorDomain)
+        XCTAssertEqual(objcError2.code, CoreStoreErrorCode.DifferentPersistentStoreExistsAtURL.rawValue)
+        XCTAssertEqual(objcError2.userInfo, userInfo)
+    }
+    
+    @objc
+    dynamic func test_ThatMappingModelNotFoundErrors_BridgeCorrectly() {
+        
+        let dummyURL = NSURL(string: "file:///test1/test2.sqlite")!
+        
+        let model = NSManagedObjectModel.fromBundle(NSBundle(forClass: self.dynamicType), modelName: "Model")
+        let version = "1.0.0"
+        
+        let error = CoreStoreError.MappingModelNotFound(localStoreURL: dummyURL, targetModel: model, targetModelVersion: version)
+        XCTAssertEqual((error as NSError).domain, CoreStoreErrorDomain)
+        XCTAssertEqual((error as NSError).code, CoreStoreErrorCode.MappingModelNotFound.rawValue)
+        
+        let userInfo: NSDictionary = [
+            "localStoreURL": dummyURL,
+            "targetModel": model,
+            "targetModelVersion": version
+        ]
+        let objcError = error.bridgeToObjectiveC
+        XCTAssertEqual(error, objcError.bridgeToSwift)
+        XCTAssertEqual(objcError.domain, CoreStoreErrorDomain)
+        XCTAssertEqual(objcError.code, CoreStoreErrorCode.MappingModelNotFound.rawValue)
+        XCTAssertEqual(objcError.userInfo, userInfo)
+        
+        let objcError2 = objcError.bridgeToSwift.bridgeToObjectiveC
+        XCTAssertEqual(error, objcError2.bridgeToSwift)
+        XCTAssertEqual(objcError2.domain, CoreStoreErrorDomain)
+        XCTAssertEqual(objcError2.code, CoreStoreErrorCode.MappingModelNotFound.rawValue)
+        XCTAssertEqual(objcError2.userInfo, userInfo)
+    }
+    
+    @objc
+    dynamic func test_ThatProgressiveMigrationRequiredErrors_BridgeCorrectly() {
+        
+        let dummyURL = NSURL(string: "file:///test1/test2.sqlite")!
+        
+        let error = CoreStoreError.ProgressiveMigrationRequired(localStoreURL: dummyURL)
+        XCTAssertEqual((error as NSError).domain, CoreStoreErrorDomain)
+        XCTAssertEqual((error as NSError).code, CoreStoreErrorCode.ProgressiveMigrationRequired.rawValue)
+        
+        let userInfo: NSDictionary = [
+            "localStoreURL": dummyURL
+        ]
+        let objcError = error.bridgeToObjectiveC
+        XCTAssertEqual(error, objcError.bridgeToSwift)
+        XCTAssertEqual(objcError.domain, CoreStoreErrorDomain)
+        XCTAssertEqual(objcError.code, CoreStoreErrorCode.ProgressiveMigrationRequired.rawValue)
+        XCTAssertEqual(objcError.userInfo, userInfo)
+        
+        let objcError2 = objcError.bridgeToSwift.bridgeToObjectiveC
+        XCTAssertEqual(error, objcError2.bridgeToSwift)
+        XCTAssertEqual(objcError2.domain, CoreStoreErrorDomain)
+        XCTAssertEqual(objcError2.code, CoreStoreErrorCode.ProgressiveMigrationRequired.rawValue)
+        XCTAssertEqual(objcError2.userInfo, userInfo)
+    }
+    
+    @objc
+    dynamic func test_ThatInternalErrorErrors_BridgeCorrectly() {
+        
+        let internalError = NSError(
+            domain: "com.dummy",
+            code: 123,
+            userInfo: [
+                "key1": "value1",
+                "key2": 2,
+                "key3": NSDate()
+            ]
+        )
+        let error = CoreStoreError.InternalError(NSError: internalError)
+        XCTAssertEqual((error as NSError).domain, CoreStoreErrorDomain)
+        XCTAssertEqual((error as NSError).code, CoreStoreErrorCode.InternalError.rawValue)
+        
+        let userInfo: NSDictionary = [
+            "NSError": internalError
+        ]
+        let objcError = error.bridgeToObjectiveC
+        XCTAssertEqual(error, objcError.bridgeToSwift)
+        XCTAssertEqual(objcError.domain, CoreStoreErrorDomain)
+        XCTAssertEqual(objcError.code, CoreStoreErrorCode.InternalError.rawValue)
+        XCTAssertEqual(objcError.userInfo, userInfo)
+        
+        let objcError2 = objcError.bridgeToSwift.bridgeToObjectiveC
+        XCTAssertEqual(error, objcError2.bridgeToSwift)
+        XCTAssertEqual(objcError2.domain, CoreStoreErrorDomain)
+        XCTAssertEqual(objcError2.code, CoreStoreErrorCode.InternalError.rawValue)
+        XCTAssertEqual(objcError2.userInfo, userInfo)
+    }
+}

CoreStoreTests/FromTests.swift

@@ -0,0 +1,429 @@
+//
+//  FromTests.swift
+//  CoreStore
+//
+//  Copyright © 2016 John Rommel Estropia
+//
+//  Permission is hereby granted, free of charge, to any person obtaining a copy
+//  of this software and associated documentation files (the "Software"), to deal
+//  in the Software without restriction, including without limitation the rights
+//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+//  copies of the Software, and to permit persons to whom the Software is
+//  furnished to do so, subject to the following conditions:
+//
+//  The above copyright notice and this permission notice shall be included in all
+//  copies or substantial portions of the Software.
+//
+//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+//  SOFTWARE.
+//
+
+import XCTest
+
+@testable
+import CoreStore
+
+
+//MARK: - FromTests
+
+final class FromTests: BaseTestCase {
+    
+    @objc
+    dynamic func test_ThatFromClauses_ConfigureCorrectly() {
+        
+        do {
+            
+            let from = From()
+            XCTAssert(from.entityClass === NSManagedObject.self)
+            XCTAssertNil(from.configurations)
+        }
+        do {
+            
+            let from = From<TestEntity1>()
+            XCTAssert(from.entityClass === TestEntity1.self)
+            XCTAssertNil(from.configurations)
+        }
+        do {
+            
+            let from = From<TestEntity1>("Config1")
+            XCTAssert(from.entityClass === TestEntity1.self)
+            XCTAssertEqual(from.configurations?.count, 1)
+            XCTAssertEqual(from.configurations?[0], "Config1")
+        }
+        do {
+            
+            let from = From<TestEntity1>(nil, "Config1")
+            XCTAssert(from.entityClass === TestEntity1.self)
+            XCTAssertEqual(from.configurations?.count, 2)
+            XCTAssertEqual(from.configurations?[0], nil)
+            XCTAssertEqual(from.configurations?[1], "Config1")
+        }
+    }
+    
+    @objc
+    dynamic func test_ThatFromClauses_ApplyToFetchRequestsCorrectlyForDefaultConfigurations() {
+        
+        self.prepareStack { (dataStack) in
+            
+            do {
+                
+                let from = From<TestEntity1>()
+                
+                let request = NSFetchRequest()
+                let storesFound = from.applyToFetchRequest(request, context: dataStack.mainContext)
+                XCTAssertTrue(storesFound)
+                XCTAssertNotNil(request.entity)
+                XCTAssertNotNil(request.affectedStores)
+                
+                XCTAssert(from.entityClass == NSClassFromString(request.entity!.managedObjectClassName))
+                
+                let affectedConfigurations = request.affectedStores!.map { $0.configurationName }
+                XCTAssertEqual(affectedConfigurations, ["PF_DEFAULT_CONFIGURATION_NAME"])
+            }
+            do {
+                
+                let from = From<TestEntity1>("Config1")
+                
+                let request = NSFetchRequest()
+                let storesFound = self.expectLogger([.LogWarning]) {
+                    
+                    from.applyToFetchRequest(request, context: dataStack.mainContext)
+                }
+                XCTAssertFalse(storesFound)
+                XCTAssertNotNil(request.entity)
+                XCTAssertNotNil(request.affectedStores)
+                
+                XCTAssert(from.entityClass == NSClassFromString(request.entity!.managedObjectClassName))
+                
+                let affectedConfigurations = request.affectedStores!.map { $0.configurationName }
+                XCTAssertTrue(affectedConfigurations.isEmpty)
+            }
+        }
+    }
+    
+    @objc
+    dynamic func test_ThatFromClauses_ApplyToFetchRequestsCorrectlyForSingleConfigurations() {
+        
+        self.prepareStack(configurations: ["Config1"]) { (dataStack) in
+            
+            do {
+                
+                let from = From<TestEntity1>()
+                
+                let request = NSFetchRequest()
+                let storesFound = from.applyToFetchRequest(request, context: dataStack.mainContext)
+                XCTAssertTrue(storesFound)
+                XCTAssertNotNil(request.entity)
+                XCTAssertNotNil(request.affectedStores)
+                
+                XCTAssert(from.entityClass == NSClassFromString(request.entity!.managedObjectClassName))
+                
+                let affectedConfigurations = request.affectedStores!.map { $0.configurationName }
+                XCTAssertEqual(affectedConfigurations, ["Config1"])
+            }
+            do {
+                
+                let from = From<TestEntity1>("Config1")
+                
+                let request = NSFetchRequest()
+                let storesFound = from.applyToFetchRequest(request, context: dataStack.mainContext)
+                XCTAssertTrue(storesFound)
+                XCTAssertNotNil(request.entity)
+                XCTAssertNotNil(request.affectedStores)
+                
+                XCTAssert(from.entityClass == NSClassFromString(request.entity!.managedObjectClassName))
+                
+                let affectedConfigurations = request.affectedStores!.map { $0.configurationName }
+                XCTAssertEqual(affectedConfigurations, ["Config1"])
+            }
+            do {
+                
+                let from = From<TestEntity1>("Config2")
+                
+                let request = NSFetchRequest()
+                let storesFound = self.expectLogger([.LogWarning]) {
+                    
+                    from.applyToFetchRequest(request, context: dataStack.mainContext)
+                }
+                XCTAssertFalse(storesFound)
+                XCTAssertNotNil(request.entity)
+                XCTAssertNotNil(request.affectedStores)
+                
+                XCTAssert(from.entityClass == NSClassFromString(request.entity!.managedObjectClassName))
+                
+                let affectedConfigurations = request.affectedStores!.map { $0.configurationName }
+                XCTAssertTrue(affectedConfigurations.isEmpty)
+            }
+            do {
+                
+                let from = From<TestEntity2>()
+                
+                let request = NSFetchRequest()
+                let storesFound = self.expectLogger([.LogWarning]) {
+                    
+                    from.applyToFetchRequest(request, context: dataStack.mainContext)
+                }
+                XCTAssertFalse(storesFound)
+                XCTAssertNotNil(request.entity)
+                XCTAssertNotNil(request.affectedStores)
+                
+                XCTAssert(from.entityClass == NSClassFromString(request.entity!.managedObjectClassName))
+                
+                let affectedConfigurations = request.affectedStores!.map { $0.configurationName }
+                XCTAssertTrue(affectedConfigurations.isEmpty)
+            }
+            do {
+                
+                let from = From<TestEntity2>("Config1")
+                
+                let request = NSFetchRequest()
+                let storesFound = self.expectLogger([.LogWarning]) {
+                    
+                    from.applyToFetchRequest(request, context: dataStack.mainContext)
+                }
+                XCTAssertFalse(storesFound)
+                XCTAssertNotNil(request.entity)
+                XCTAssertNotNil(request.affectedStores)
+                
+                XCTAssert(from.entityClass == NSClassFromString(request.entity!.managedObjectClassName))
+                
+                let affectedConfigurations = request.affectedStores!.map { $0.configurationName }
+                XCTAssertTrue(affectedConfigurations.isEmpty)
+            }
+            do {
+                
+                let from = From<TestEntity2>("Config2")
+                
+                let request = NSFetchRequest()
+                let storesFound = self.expectLogger([.LogWarning]) {
+                    
+                    from.applyToFetchRequest(request, context: dataStack.mainContext)
+                }
+                XCTAssertFalse(storesFound)
+                XCTAssertNotNil(request.entity)
+                XCTAssertNotNil(request.affectedStores)
+                
+                XCTAssert(from.entityClass == NSClassFromString(request.entity!.managedObjectClassName))
+                
+                let affectedConfigurations = request.affectedStores!.map { $0.configurationName }
+                XCTAssertTrue(affectedConfigurations.isEmpty)
+            }
+        }
+    }
+    
+    @objc
+    dynamic func test_ThatFromClauses_ApplyToFetchRequestsCorrectlyForDefaultAndCustomConfigurations() {
+        
+        self.prepareStack(configurations: [nil, "Config1"]) { (dataStack) in
+            
+            do {
+                
+                let from = From<TestEntity1>()
+                
+                let request = NSFetchRequest()
+                let storesFound = from.applyToFetchRequest(request, context: dataStack.mainContext)
+                XCTAssertTrue(storesFound)
+                XCTAssertNotNil(request.entity)
+                XCTAssertNotNil(request.affectedStores)
+                
+                XCTAssert(from.entityClass == NSClassFromString(request.entity!.managedObjectClassName))
+                
+                let affectedConfigurations = request.affectedStores!.map { $0.configurationName }
+                XCTAssertEqual(Set(affectedConfigurations), ["PF_DEFAULT_CONFIGURATION_NAME", "Config1"] as Set)
+            }
+            do {
+                
+                let from = From<TestEntity1>("Config1")
+                
+                let request = NSFetchRequest()
+                let storesFound = from.applyToFetchRequest(request, context: dataStack.mainContext)
+                XCTAssertTrue(storesFound)
+                XCTAssertNotNil(request.entity)
+                XCTAssertNotNil(request.affectedStores)
+                
+                XCTAssert(from.entityClass == NSClassFromString(request.entity!.managedObjectClassName))
+                
+                let affectedConfigurations = request.affectedStores!.map { $0.configurationName }
+                XCTAssertEqual(affectedConfigurations, ["Config1"])
+            }
+            do {
+                
+                let from = From<TestEntity1>("Config2")
+                
+                let request = NSFetchRequest()
+                let storesFound = self.expectLogger([.LogWarning]) {
+                    
+                    from.applyToFetchRequest(request, context: dataStack.mainContext)
+                }
+                XCTAssertFalse(storesFound)
+                XCTAssertNotNil(request.entity)
+                XCTAssertNotNil(request.affectedStores)
+                
+                XCTAssert(from.entityClass == NSClassFromString(request.entity!.managedObjectClassName))
+                
+                let affectedConfigurations = request.affectedStores!.map { $0.configurationName }
+                XCTAssertTrue(affectedConfigurations.isEmpty)
+            }
+            do {
+                
+                let from = From<TestEntity2>()
+                
+                let request = NSFetchRequest()
+                let storesFound = from.applyToFetchRequest(request, context: dataStack.mainContext)
+                XCTAssertTrue(storesFound)
+                XCTAssertNotNil(request.entity)
+                XCTAssertNotNil(request.affectedStores)
+                
+                XCTAssert(from.entityClass == NSClassFromString(request.entity!.managedObjectClassName))
+                
+                let affectedConfigurations = request.affectedStores!.map { $0.configurationName }
+                XCTAssertEqual(affectedConfigurations, ["PF_DEFAULT_CONFIGURATION_NAME"])
+            }
+            do {
+                
+                let from = From<TestEntity2>("Config1")
+                
+                let request = NSFetchRequest()
+                let storesFound = self.expectLogger([.LogWarning]) {
+                    
+                    from.applyToFetchRequest(request, context: dataStack.mainContext)
+                }
+                XCTAssertFalse(storesFound)
+                XCTAssertNotNil(request.entity)
+                XCTAssertNotNil(request.affectedStores)
+                
+                XCTAssert(from.entityClass == NSClassFromString(request.entity!.managedObjectClassName))
+                
+                let affectedConfigurations = request.affectedStores!.map { $0.configurationName }
+                XCTAssertTrue(affectedConfigurations.isEmpty)
+            }
+            do {
+                
+                let from = From<TestEntity2>("Config2")
+                
+                let request = NSFetchRequest()
+                let storesFound = self.expectLogger([.LogWarning]) {
+                    
+                    from.applyToFetchRequest(request, context: dataStack.mainContext)
+                }
+                XCTAssertFalse(storesFound)
+                XCTAssertNotNil(request.entity)
+                XCTAssertNotNil(request.affectedStores)
+                
+                XCTAssert(from.entityClass == NSClassFromString(request.entity!.managedObjectClassName))
+                
+                let affectedConfigurations = request.affectedStores!.map { $0.configurationName }
+                XCTAssertTrue(affectedConfigurations.isEmpty)
+            }
+        }
+    }
+    
+    @objc
+    dynamic func test_ThatFromClauses_ApplyToFetchRequestsCorrectlyForMultipleConfigurations() {
+        
+        self.prepareStack(configurations: ["Config1", "Config2"]) { (dataStack) in
+            
+            do {
+                
+                let from = From<TestEntity1>()
+                
+                let request = NSFetchRequest()
+                let storesFound = from.applyToFetchRequest(request, context: dataStack.mainContext)
+                XCTAssertTrue(storesFound)
+                XCTAssertNotNil(request.entity)
+                XCTAssertNotNil(request.affectedStores)
+                
+                XCTAssert(from.entityClass == NSClassFromString(request.entity!.managedObjectClassName))
+                
+                let affectedConfigurations = request.affectedStores!.map { $0.configurationName }
+                XCTAssertEqual(affectedConfigurations, ["Config1"])
+            }
+            do {
+                
+                let from = From<TestEntity1>("Config1")
+                
+                let request = NSFetchRequest()
+                let storesFound = from.applyToFetchRequest(request, context: dataStack.mainContext)
+                XCTAssertTrue(storesFound)
+                XCTAssertNotNil(request.entity)
+                XCTAssertNotNil(request.affectedStores)
+                
+                XCTAssert(from.entityClass == NSClassFromString(request.entity!.managedObjectClassName))
+                
+                let affectedConfigurations = request.affectedStores!.map { $0.configurationName }
+                XCTAssertEqual(affectedConfigurations, ["Config1"])
+            }
+            do {
+                
+                let from = From<TestEntity1>("Config2")
+                
+                let request = NSFetchRequest()
+                let storesFound = self.expectLogger([.LogWarning]) {
+                    
+                    from.applyToFetchRequest(request, context: dataStack.mainContext)
+                }
+                XCTAssertFalse(storesFound)
+                XCTAssertNotNil(request.entity)
+                XCTAssertNotNil(request.affectedStores)
+                
+                XCTAssert(from.entityClass == NSClassFromString(request.entity!.managedObjectClassName))
+                
+                let affectedConfigurations = request.affectedStores!.map { $0.configurationName }
+                XCTAssertTrue(affectedConfigurations.isEmpty)
+            }
+            do {
+                
+                let from = From<TestEntity2>()
+                
+                let request = NSFetchRequest()
+                let storesFound = from.applyToFetchRequest(request, context: dataStack.mainContext)
+                XCTAssertTrue(storesFound)
+                XCTAssertNotNil(request.entity)
+                XCTAssertNotNil(request.affectedStores)
+                
+                XCTAssert(from.entityClass == NSClassFromString(request.entity!.managedObjectClassName))
+                
+                let affectedConfigurations = request.affectedStores!.map { $0.configurationName }
+                XCTAssertEqual(affectedConfigurations, ["Config2"])
+            }
+            do {
+                
+                let from = From<TestEntity2>("Config1")
+                
+                let request = NSFetchRequest()
+                let storesFound = self.expectLogger([.LogWarning]) {
+                    
+                    from.applyToFetchRequest(request, context: dataStack.mainContext)
+                }
+                XCTAssertFalse(storesFound)
+                XCTAssertNotNil(request.entity)
+                XCTAssertNotNil(request.affectedStores)
+                
+                XCTAssert(from.entityClass == NSClassFromString(request.entity!.managedObjectClassName))
+                
+                let affectedConfigurations = request.affectedStores!.map { $0.configurationName }
+                XCTAssertTrue(affectedConfigurations.isEmpty)
+            }
+            do {
+                
+                let from = From<TestEntity2>("Config2")
+                
+                let request = NSFetchRequest()
+                let storesFound = from.applyToFetchRequest(request, context: dataStack.mainContext)
+                XCTAssertTrue(storesFound)
+                XCTAssertNotNil(request.entity)
+                XCTAssertNotNil(request.affectedStores)
+                
+                XCTAssert(from.entityClass == NSClassFromString(request.entity!.managedObjectClassName))
+                
+                let affectedConfigurations = request.affectedStores!.map { $0.configurationName }
+                XCTAssertEqual(affectedConfigurations, ["Config2"])
+            }
+        }
+    }
+}

CoreStoreTests/GroupByTests.swift

@@ -0,0 +1,81 @@
+//
+//  GroupByTests.swift
+//  CoreStore
+//
+//  Copyright © 2016 John Rommel Estropia
+//
+//  Permission is hereby granted, free of charge, to any person obtaining a copy
+//  of this software and associated documentation files (the "Software"), to deal
+//  in the Software without restriction, including without limitation the rights
+//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+//  copies of the Software, and to permit persons to whom the Software is
+//  furnished to do so, subject to the following conditions:
+//
+//  The above copyright notice and this permission notice shall be included in all
+//  copies or substantial portions of the Software.
+//
+//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+//  SOFTWARE.
+//
+
+import XCTest
+
+@testable
+import CoreStore
+
+
+//MARK: - GroupByTests
+
+final class GroupByTests: BaseTestCase {
+    
+    @objc
+    dynamic func test_ThatGroupByClauses_ConfigureCorrectly() {
+        
+        do {
+            
+            let groupBy = GroupBy()
+            XCTAssertEqual(groupBy, GroupBy([] as [String]))
+            XCTAssertNotEqual(groupBy, GroupBy("key"))
+            XCTAssertTrue(groupBy.keyPaths.isEmpty)
+        }
+        do {
+            
+            let groupBy = GroupBy("key1")
+            XCTAssertEqual(groupBy, GroupBy("key1"))
+            XCTAssertEqual(groupBy, GroupBy(["key1"]))
+            XCTAssertNotEqual(groupBy, GroupBy("key2"))
+            XCTAssertEqual(groupBy.keyPaths, ["key1"])
+        }
+        do {
+            
+            let groupBy = GroupBy("key1", "key2")
+            XCTAssertEqual(groupBy, GroupBy("key1", "key2"))
+            XCTAssertEqual(groupBy, GroupBy(["key1", "key2"]))
+            XCTAssertNotEqual(groupBy, GroupBy("key2", "key1"))
+            XCTAssertEqual(groupBy.keyPaths, ["key1", "key2"])
+        }
+    }
+    
+    @objc
+    dynamic func test_ThatGroupByClauses_ApplyToFetchRequestsCorrectly() {
+        
+        self.prepareStack { (dataStack) in
+            
+            let groupBy = GroupBy("testString")
+            
+            let request = NSFetchRequest()
+            _ = From(TestEntity1).applyToFetchRequest(request, context: dataStack.mainContext)
+            groupBy.applyToFetchRequest(request)
+            
+            XCTAssertNotNil(request.propertiesToGroupBy)
+            
+            let attributes = (request.propertiesToGroupBy ?? []) as! [NSAttributeDescription]
+            XCTAssertEqual(attributes.map { $0.name }, groupBy.keyPaths)
+        }
+    }
+}

CoreStoreTests/ImportTests.swift

@@ -0,0 +1,982 @@
+//
+//  ImportTests.swift
+//  CoreStore
+//
+//  Copyright © 2016 John Rommel Estropia
+//
+//  Permission is hereby granted, free of charge, to any person obtaining a copy
+//  of this software and associated documentation files (the "Software"), to deal
+//  in the Software without restriction, including without limitation the rights
+//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+//  copies of the Software, and to permit persons to whom the Software is
+//  furnished to do so, subject to the following conditions:
+//
+//  The above copyright notice and this permission notice shall be included in all
+//  copies or substantial portions of the Software.
+//
+//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+//  SOFTWARE.
+//
+
+import XCTest
+
+@testable
+import CoreStore
+
+
+// MARK: - ImportTests
+
+class ImportTests: BaseTestDataTestCase {
+    
+    @objc
+    dynamic func test_ThatImportObject_CanSkipImport() {
+        
+        self.prepareStack { (stack) in
+            
+            stack.beginSynchronous { (transaction) in
+                
+                do {
+                    
+                    let object = try transaction.importObject(
+                        Into(TestEntity1),
+                        source: [
+                            "testBoolean": NSNumber(bool: true),
+                            "testNumber": NSNumber(integer: 1),
+                            "testDecimal": NSDecimalNumber(string: "1"),
+                            "testString": "nil:TestEntity1:1",
+                            "testData": ("nil:TestEntity1:1" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!,
+                            "testDate": self.dateFormatter.dateFromString("2000-01-01T00:00:00Z")!,
+                            "skip_insert": ""
+                        ]
+                    )
+                    XCTAssertNil(object)
+                    XCTAssertEqual(transaction.fetchCount(From(TestEntity1)), 0)
+                }
+                catch {
+                    
+                    XCTFail()
+                }
+            }
+        }
+    }
+    
+    @objc
+    dynamic func test_ThatImportObject_CanThrowError() {
+        
+        self.prepareStack { (stack) in
+            
+            stack.beginSynchronous { (transaction) in
+                
+                let errorExpectation = self.expectationWithDescription("error")
+                do {
+                    
+                    let _ = try transaction.importObject(
+                        Into(TestEntity1),
+                        source: [
+                            "testBoolean": NSNumber(bool: true),
+                            "testNumber": NSNumber(integer: 1),
+                            "testDecimal": NSDecimalNumber(string: "1"),
+                            "testString": "nil:TestEntity1:1",
+                            "testData": ("nil:TestEntity1:1" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!,
+                            "testDate": self.dateFormatter.dateFromString("2000-01-01T00:00:00Z")!,
+                            "throw_on_insert": ""
+                        ]
+                    )
+                    XCTFail()
+                }
+                catch _ as TestInsertError {
+                    
+                    errorExpectation.fulfill()
+                    XCTAssertEqual(transaction.fetchCount(From(TestEntity1)), 1)
+                    
+                    let object = transaction.fetchOne(From(TestEntity1))
+                    XCTAssertNotNil(object)
+                    XCTAssertNil(object?.testEntityID)
+                    XCTAssertNil(object?.testBoolean)
+                    XCTAssertNil(object?.testNumber)
+                    XCTAssertNil(object?.testDecimal)
+                    XCTAssertNil(object?.testString)
+                    XCTAssertNil(object?.testData)
+                    XCTAssertNil(object?.testDate)
+                }
+                catch {
+                    
+                    XCTFail()
+                }
+                self.checkExpectationsImmediately()
+                transaction.context.reset()
+            }
+        }
+    }
+    
+    @objc
+    dynamic func test_ThatImportObject_CanImportCorrectly() {
+        
+        self.prepareStack { (stack) in
+            
+            stack.beginSynchronous { (transaction) in
+                
+                do {
+                    
+                    let object = try transaction.importObject(
+                        Into(TestEntity1),
+                        source: [
+                            "testBoolean": NSNumber(bool: true),
+                            "testNumber": NSNumber(integer: 1),
+                            "testDecimal": NSDecimalNumber(string: "1"),
+                            "testString": "nil:TestEntity1:1",
+                            "testData": ("nil:TestEntity1:1" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!,
+                            "testDate": self.dateFormatter.dateFromString("2000-01-01T00:00:00Z")!
+                        ]
+                    )
+                    XCTAssertNotNil(object)
+                    XCTAssertEqual(transaction.fetchCount(From(TestEntity1)), 1)
+                    XCTAssertNil(object?.testEntityID)
+                    XCTAssertEqual(object?.testBoolean, NSNumber(bool: true))
+                    XCTAssertEqual(object?.testNumber, NSNumber(integer: 1))
+                    XCTAssertEqual(object?.testDecimal, NSDecimalNumber(string: "1"))
+                    XCTAssertEqual(object?.testString, "nil:TestEntity1:1")
+                    XCTAssertEqual(object?.testData, ("nil:TestEntity1:1" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!)
+                    XCTAssertEqual(object?.testDate, self.dateFormatter.dateFromString("2000-01-01T00:00:00Z")!)
+                    
+                    try transaction.importObject(
+                        object!,
+                        source: [
+                            "testBoolean": NSNumber(bool: false),
+                            "testNumber": NSNumber(integer: 2),
+                            "testDecimal": NSDecimalNumber(string: "2"),
+                            "testString": "nil:TestEntity1:2",
+                            "testData": ("nil:TestEntity1:2" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!,
+                            "testDate": self.dateFormatter.dateFromString("2000-01-02T00:00:00Z")!
+                        ]
+                    )
+                    XCTAssertEqual(transaction.fetchCount(From(TestEntity1)), 1)
+                    XCTAssertNil(object?.testEntityID)
+                    XCTAssertEqual(object?.testBoolean, NSNumber(bool: false))
+                    XCTAssertEqual(object?.testNumber, NSNumber(integer: 2))
+                    XCTAssertEqual(object?.testDecimal, NSDecimalNumber(string: "2"))
+                    XCTAssertEqual(object?.testString, "nil:TestEntity1:2")
+                    XCTAssertEqual(object?.testData, ("nil:TestEntity1:2" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!)
+                    XCTAssertEqual(object?.testDate, self.dateFormatter.dateFromString("2000-01-02T00:00:00Z")!)
+                }
+                catch {
+                    
+                    XCTFail()
+                }
+                transaction.context.reset()
+            }
+        }
+    }
+    
+    @objc
+    dynamic func test_ThatImportObjects_CanSkipImport() {
+        
+        self.prepareStack { (stack) in
+            
+            stack.beginSynchronous { (transaction) in
+                
+                do {
+                    
+                    let sourceArray: [TestEntity1.ImportSource] = [
+                        [
+                            "testBoolean": NSNumber(bool: true),
+                            "testNumber": NSNumber(integer: 1),
+                            "testDecimal": NSDecimalNumber(string: "1"),
+                            "testString": "nil:TestEntity1:1",
+                            "testData": ("nil:TestEntity1:1" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!,
+                            "testDate": self.dateFormatter.dateFromString("2000-01-01T00:00:00Z")!,
+                            "skip_insert": ""
+                        ],
+                        [
+                            "testBoolean": NSNumber(bool: false),
+                            "testNumber": NSNumber(integer: 2),
+                            "testDecimal": NSDecimalNumber(string: "2"),
+                            "testString": "nil:TestEntity1:2",
+                            "testData": ("nil:TestEntity1:2" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!,
+                            "testDate": self.dateFormatter.dateFromString("2000-01-02T00:00:00Z")!
+                        ]
+                    ]
+                    let objects = try transaction.importObjects(
+                        Into(TestEntity1),
+                        sourceArray: sourceArray
+                    )
+                    XCTAssertEqual(objects.count, 1)
+                    XCTAssertEqual(transaction.fetchCount(From(TestEntity1)), 1)
+                    
+                    let object = objects[0]
+                    let dictionary = sourceArray[1]
+                    XCTAssertNil(object.testEntityID)
+                    XCTAssertEqual(object.testBoolean, dictionary["testBoolean"] as? NSNumber)
+                    XCTAssertEqual(object.testNumber, dictionary["testNumber"] as? NSNumber)
+                    XCTAssertEqual(object.testDecimal, dictionary["testDecimal"] as? NSDecimalNumber)
+                    XCTAssertEqual(object.testString, dictionary["testString"] as? String)
+                    XCTAssertEqual(object.testData, dictionary["testData"] as? NSData)
+                    XCTAssertEqual(object.testDate, dictionary["testDate"] as? NSDate)
+                }
+                catch {
+                    
+                    XCTFail()
+                }
+                transaction.context.reset()
+            }
+        }
+    }
+    
+    @objc
+    dynamic func test_ThatImportObjects_CanThrowError() {
+        
+        self.prepareStack { (stack) in
+            
+            stack.beginSynchronous { (transaction) in
+                
+                let errorExpectation = self.expectationWithDescription("error")
+                do {
+                    
+                    let sourceArray: [TestEntity1.ImportSource] = [
+                        [
+                            "testBoolean": NSNumber(bool: true),
+                            "testNumber": NSNumber(integer: 1),
+                            "testDecimal": NSDecimalNumber(string: "1"),
+                            "testString": "nil:TestEntity1:1",
+                            "testData": ("nil:TestEntity1:1" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!,
+                            "testDate": self.dateFormatter.dateFromString("2000-01-01T00:00:00Z")!,
+                            "throw_on_insert": ""
+                        ],
+                        [
+                            "testBoolean": NSNumber(bool: false),
+                            "testNumber": NSNumber(integer: 2),
+                            "testDecimal": NSDecimalNumber(string: "2"),
+                            "testString": "nil:TestEntity1:2",
+                            "testData": ("nil:TestEntity1:2" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!,
+                            "testDate": self.dateFormatter.dateFromString("2000-01-02T00:00:00Z")!
+                        ]
+                    ]
+                    let _ = try transaction.importObjects(
+                        Into(TestEntity1),
+                        sourceArray: sourceArray
+                    )
+                    XCTFail()
+                }
+                catch _ as TestInsertError {
+                    
+                    errorExpectation.fulfill()
+                    XCTAssertEqual(transaction.fetchCount(From(TestEntity1)), 1)
+                    
+                    let object = transaction.fetchOne(From(TestEntity1))
+                    XCTAssertNotNil(object)
+                    XCTAssertNil(object?.testEntityID)
+                    XCTAssertNil(object?.testBoolean)
+                    XCTAssertNil(object?.testNumber)
+                    XCTAssertNil(object?.testDecimal)
+                    XCTAssertNil(object?.testString)
+                    XCTAssertNil(object?.testData)
+                    XCTAssertNil(object?.testDate)
+                }
+                catch {
+                    
+                    XCTFail()
+                }
+                self.checkExpectationsImmediately()
+                transaction.context.reset()
+            }
+        }
+    }
+    
+    @objc
+    dynamic func test_ThatImportObjects_CanImportCorrectly() {
+        
+        self.prepareStack { (stack) in
+            
+            stack.beginSynchronous { (transaction) in
+                
+                do {
+                    
+                    let sourceArray: [TestEntity1.ImportSource] = [
+                        [
+                            "testBoolean": NSNumber(bool: true),
+                            "testNumber": NSNumber(integer: 1),
+                            "testDecimal": NSDecimalNumber(string: "1"),
+                            "testString": "nil:TestEntity1:1",
+                            "testData": ("nil:TestEntity1:1" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!,
+                            "testDate": self.dateFormatter.dateFromString("2000-01-01T00:00:00Z")!
+                        ],
+                        [
+                            "testBoolean": NSNumber(bool: false),
+                            "testNumber": NSNumber(integer: 2),
+                            "testDecimal": NSDecimalNumber(string: "2"),
+                            "testString": "nil:TestEntity1:2",
+                            "testData": ("nil:TestEntity1:2" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!,
+                            "testDate": self.dateFormatter.dateFromString("2000-01-02T00:00:00Z")!
+                        ]
+                    ]
+                    let objects = try transaction.importObjects(
+                        Into(TestEntity1),
+                        sourceArray: sourceArray
+                    )
+                    XCTAssertEqual(objects.count, sourceArray.count)
+                    XCTAssertEqual(transaction.fetchCount(From(TestEntity1)), 2)
+                    
+                    for i in 0 ..< sourceArray.count {
+                        
+                        let object = objects[i]
+                        let dictionary = sourceArray[i]
+                        
+                        XCTAssertNil(object.testEntityID)
+                        XCTAssertEqual(object.testBoolean, dictionary["testBoolean"] as? NSNumber)
+                        XCTAssertEqual(object.testNumber, dictionary["testNumber"] as? NSNumber)
+                        XCTAssertEqual(object.testDecimal, dictionary["testDecimal"] as? NSDecimalNumber)
+                        XCTAssertEqual(object.testString, dictionary["testString"] as? String)
+                        XCTAssertEqual(object.testData, dictionary["testData"] as? NSData)
+                        XCTAssertEqual(object.testDate, dictionary["testDate"] as? NSDate)
+                    }
+                }
+                catch {
+                    
+                    XCTFail()
+                }
+                transaction.context.reset()
+            }
+        }
+    }
+    
+    @objc
+    dynamic func test_ThatImportUniqueObject_CanSkipImport() {
+        
+        self.prepareStack { (stack) in
+            
+            self.prepareTestDataForStack(stack)
+            
+            stack.beginSynchronous { (transaction) in
+                
+                do {
+                    
+                    let object = try transaction.importUniqueObject(
+                        Into(TestEntity1),
+                        source: [
+                            "testEntityID": NSNumber(integer: 106),
+                            "testBoolean": NSNumber(bool: true),
+                            "testNumber": NSNumber(integer: 6),
+                            "testDecimal": NSDecimalNumber(string: "6"),
+                            "testString": "nil:TestEntity1:6",
+                            "testData": ("nil:TestEntity1:6" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!,
+                            "testDate": self.dateFormatter.dateFromString("2000-01-06T00:00:00Z")!,
+                            "skip_insert": ""
+                        ]
+                    )
+                    XCTAssertNil(object)
+                    XCTAssertEqual(transaction.fetchCount(From(TestEntity1)), 5)
+                }
+                catch {
+                    
+                    XCTFail()
+                }
+                do {
+                    
+                    let object = try transaction.importUniqueObject(
+                        Into(TestEntity1),
+                        source: [
+                            "testEntityID": NSNumber(integer: 105),
+                            "testBoolean": NSNumber(bool: false),
+                            "testNumber": NSNumber(integer: 6),
+                            "testDecimal": NSDecimalNumber(string: "6"),
+                            "testString": "nil:TestEntity1:6",
+                            "testData": ("nil:TestEntity1:6" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!,
+                            "testDate": self.dateFormatter.dateFromString("2000-01-06T00:00:00Z")!,
+                            "skip_update": ""
+                        ]
+                    )
+                    XCTAssertNil(object)
+                    XCTAssertEqual(transaction.fetchCount(From(TestEntity1)), 5)
+                    
+                    let existingObjects = transaction.fetchAll(From(TestEntity1), Where("testEntityID", isEqualTo: 105))
+                    XCTAssertNotNil(existingObjects)
+                    XCTAssertEqual(existingObjects?.count, 1)
+                    
+                    let existingObject = existingObjects?[0]
+                    XCTAssertEqual(existingObject?.testEntityID, NSNumber(integer: 105))
+                    XCTAssertEqual(existingObject?.testBoolean, NSNumber(bool: true))
+                    XCTAssertEqual(existingObject?.testNumber, NSNumber(integer: 5))
+                    XCTAssertEqual(existingObject?.testDecimal, NSDecimalNumber(string: "5"))
+                    XCTAssertEqual(existingObject?.testString, "nil:TestEntity1:5")
+                    XCTAssertEqual(existingObject?.testData, ("nil:TestEntity1:5" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!)
+                    XCTAssertEqual(existingObject?.testDate, self.dateFormatter.dateFromString("2000-01-05T00:00:00Z")!)
+                }
+                catch {
+                    
+                    XCTFail()
+                }
+            }
+        }
+    }
+    
+    @objc
+    dynamic func test_ThatImportUniqueObject_CanThrowError() {
+        
+        self.prepareStack { (stack) in
+            
+            self.prepareTestDataForStack(stack)
+            
+            stack.beginSynchronous { (transaction) in
+                
+                do {
+                    
+                    let errorExpectation = self.expectationWithDescription("error")
+                    do {
+                        
+                        let _ = try transaction.importUniqueObject(
+                            Into(TestEntity1),
+                            source: [
+                                "testEntityID": NSNumber(integer: 106),
+                                "testBoolean": NSNumber(bool: true),
+                                "testNumber": NSNumber(integer: 6),
+                                "testDecimal": NSDecimalNumber(string: "6"),
+                                "testString": "nil:TestEntity1:6",
+                                "testData": ("nil:TestEntity1:6" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!,
+                                "testDate": self.dateFormatter.dateFromString("2000-01-06T00:00:00Z")!,
+                                "throw_on_insert": ""
+                            ]
+                        )
+                        XCTFail()
+                    }
+                    catch _ as TestInsertError {
+                        
+                        errorExpectation.fulfill()
+                        XCTAssertEqual(transaction.fetchCount(From(TestEntity1)), 6)
+                        
+                        let object = transaction.fetchOne(From(TestEntity1), Where("testEntityID", isEqualTo: 106))
+                        XCTAssertNotNil(object)
+                        XCTAssertEqual(object?.testEntityID, NSNumber(integer: 106))
+                        XCTAssertNil(object?.testBoolean)
+                        XCTAssertNil(object?.testNumber)
+                        XCTAssertNil(object?.testDecimal)
+                        XCTAssertNil(object?.testString)
+                        XCTAssertNil(object?.testData)
+                        XCTAssertNil(object?.testDate)
+                    }
+                    catch {
+                        
+                        XCTFail()
+                    }
+                    self.checkExpectationsImmediately()
+                }
+                do {
+                    
+                    let errorExpectation = self.expectationWithDescription("error")
+                    do {
+                        
+                        let _ = try transaction.importUniqueObject(
+                            Into(TestEntity1),
+                            source: [
+                                "testEntityID": NSNumber(integer: 105),
+                                "testBoolean": NSNumber(bool: false),
+                                "testNumber": NSNumber(integer: 6),
+                                "testDecimal": NSDecimalNumber(string: "6"),
+                                "testString": "nil:TestEntity1:6",
+                                "testData": ("nil:TestEntity1:6" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!,
+                                "testDate": self.dateFormatter.dateFromString("2000-01-06T00:00:00Z")!,
+                                "throw_on_update": ""
+                            ]
+                        )
+                        XCTFail()
+                    }
+                    catch _ as TestUpdateError {
+                        
+                        errorExpectation.fulfill()
+                        XCTAssertEqual(transaction.fetchCount(From(TestEntity1)), 6)
+                        
+                        let existingObjects = transaction.fetchAll(From(TestEntity1), Where("testEntityID", isEqualTo: 105))
+                        XCTAssertNotNil(existingObjects)
+                        XCTAssertEqual(existingObjects?.count, 1)
+                        
+                        let existingObject = existingObjects?[0]
+                        XCTAssertNotNil(existingObject)
+                        XCTAssertEqual(existingObject?.testEntityID, NSNumber(integer: 105))
+                        XCTAssertEqual(existingObject?.testBoolean, NSNumber(bool: true))
+                        XCTAssertEqual(existingObject?.testNumber, NSNumber(integer: 5))
+                        XCTAssertEqual(existingObject?.testDecimal, NSDecimalNumber(string: "5"))
+                        XCTAssertEqual(existingObject?.testString, "nil:TestEntity1:5")
+                        XCTAssertEqual(existingObject?.testData, ("nil:TestEntity1:5" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!)
+                        XCTAssertEqual(existingObject?.testDate, self.dateFormatter.dateFromString("2000-01-05T00:00:00Z")!)
+                    }
+                    catch {
+                        
+                        XCTFail()
+                    }
+                    self.checkExpectationsImmediately()
+                }
+                transaction.context.reset()
+            }
+        }
+    }
+
+    @objc
+    dynamic func test_ThatImportUniqueObject_CanImportCorrectly() {
+        
+        self.prepareStack { (stack) in
+            
+            self.prepareTestDataForStack(stack)
+            
+            stack.beginSynchronous { (transaction) in
+                
+                do {
+                    
+                    let object = try transaction.importUniqueObject(
+                        Into(TestEntity1),
+                        source: [
+                            "testEntityID": NSNumber(integer: 106),
+                            "testBoolean": NSNumber(bool: true),
+                            "testNumber": NSNumber(integer: 6),
+                            "testDecimal": NSDecimalNumber(string: "6"),
+                            "testString": "nil:TestEntity1:6",
+                            "testData": ("nil:TestEntity1:6" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!,
+                            "testDate": self.dateFormatter.dateFromString("2000-01-06T00:00:00Z")!
+                        ]
+                    )
+                    XCTAssertNotNil(object)
+                    XCTAssertEqual(transaction.fetchCount(From(TestEntity1)), 6)
+                    
+                    XCTAssertEqual(object?.testEntityID, NSNumber(integer: 106))
+                    XCTAssertEqual(object?.testBoolean, NSNumber(bool: true))
+                    XCTAssertEqual(object?.testNumber, NSNumber(integer: 6))
+                    XCTAssertEqual(object?.testDecimal, NSDecimalNumber(string: "6"))
+                    XCTAssertEqual(object?.testString, "nil:TestEntity1:6")
+                    XCTAssertEqual(object?.testData, ("nil:TestEntity1:6" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!)
+                    XCTAssertEqual(object?.testDate, self.dateFormatter.dateFromString("2000-01-06T00:00:00Z")!)
+                }
+                catch {
+                    
+                    XCTFail()
+                }
+                do {
+                    
+                    let object = try transaction.importUniqueObject(
+                        Into(TestEntity1),
+                        source: [
+                            "testEntityID": NSNumber(integer: 106),
+                            "testBoolean": NSNumber(bool: false),
+                            "testNumber": NSNumber(integer: 7),
+                            "testDecimal": NSDecimalNumber(string: "7"),
+                            "testString": "nil:TestEntity1:7",
+                            "testData": ("nil:TestEntity1:7" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!,
+                            "testDate": self.dateFormatter.dateFromString("2000-01-07T00:00:00Z")!,
+                        ]
+                    )
+                    XCTAssertNotNil(object)
+                    XCTAssertEqual(transaction.fetchCount(From(TestEntity1)), 6)
+                    
+                    XCTAssertEqual(object?.testEntityID, NSNumber(integer: 106))
+                    XCTAssertEqual(object?.testBoolean, NSNumber(bool: false))
+                    XCTAssertEqual(object?.testNumber, NSNumber(integer: 7))
+                    XCTAssertEqual(object?.testDecimal, NSDecimalNumber(string: "7"))
+                    XCTAssertEqual(object?.testString, "nil:TestEntity1:7")
+                    XCTAssertEqual(object?.testData, ("nil:TestEntity1:7" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!)
+                    XCTAssertEqual(object?.testDate, self.dateFormatter.dateFromString("2000-01-07T00:00:00Z")!)
+                    
+                    let existingObjects = transaction.fetchAll(From(TestEntity1), Where("testEntityID", isEqualTo: 106))
+                    XCTAssertNotNil(existingObjects)
+                    XCTAssertEqual(existingObjects?.count, 1)
+                    
+                    let existingObject = existingObjects?[0]
+                    XCTAssertEqual(existingObject, object)
+                }
+                catch {
+                    
+                    XCTFail()
+                }
+                transaction.context.reset()
+            }
+        }
+    }
+
+    @objc
+    dynamic func test_ThatImportUniqueObjects_CanSkipImport() {
+        
+        self.prepareStack { (stack) in
+            
+            self.prepareTestDataForStack(stack)
+            
+            stack.beginSynchronous { (transaction) in
+                
+                do {
+                    
+                    let sourceArray: [TestEntity1.ImportSource] = [
+                        [
+                            "testEntityID": NSNumber(integer: 106),
+                            "testBoolean": NSNumber(bool: true),
+                            "testNumber": NSNumber(integer: 6),
+                            "testDecimal": NSDecimalNumber(string: "6"),
+                            "testString": "nil:TestEntity1:6",
+                            "testData": ("nil:TestEntity1:6" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!,
+                            "testDate": self.dateFormatter.dateFromString("2000-01-06T00:00:00Z")!,
+                            "skip_insert": ""
+                        ],
+                        [
+                            "testEntityID": NSNumber(integer: 107),
+                            "testBoolean": NSNumber(bool: false),
+                            "testNumber": NSNumber(integer: 7),
+                            "testDecimal": NSDecimalNumber(string: "7"),
+                            "testString": "nil:TestEntity1:7",
+                            "testData": ("nil:TestEntity1:7" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!,
+                            "testDate": self.dateFormatter.dateFromString("2000-01-07T00:00:00Z")!
+                        ]
+                    ]
+                    let objects = try transaction.importUniqueObjects(
+                        Into(TestEntity1),
+                        sourceArray: sourceArray
+                    )
+                    XCTAssertEqual(objects.count, 1)
+                    XCTAssertEqual(transaction.fetchCount(From(TestEntity1)), 6)
+                    
+                    let object = objects[0]
+                    let dictionary = sourceArray[1]
+                    XCTAssertEqual(object.testEntityID, dictionary["testEntityID"] as? NSNumber)
+                    XCTAssertEqual(object.testBoolean, dictionary["testBoolean"] as? NSNumber)
+                    XCTAssertEqual(object.testNumber, dictionary["testNumber"] as? NSNumber)
+                    XCTAssertEqual(object.testDecimal, dictionary["testDecimal"] as? NSDecimalNumber)
+                    XCTAssertEqual(object.testString, dictionary["testString"] as? String)
+                    XCTAssertEqual(object.testData, dictionary["testData"] as? NSData)
+                    XCTAssertEqual(object.testDate, dictionary["testDate"] as? NSDate)
+                }
+                catch {
+                    
+                    XCTFail()
+                }
+                transaction.context.reset()
+            }
+        }
+    }
+
+    @objc
+    dynamic func test_ThatImportUniqueObjects_CanThrowError() {
+        
+        self.prepareStack { (stack) in
+            
+            self.prepareTestDataForStack(stack)
+            
+            stack.beginSynchronous { (transaction) in
+                
+                let errorExpectation = self.expectationWithDescription("error")
+                do {
+                    
+                    let sourceArray: [TestEntity1.ImportSource] = [
+                        [
+                            "testEntityID": NSNumber(integer: 106),
+                            "testBoolean": NSNumber(bool: true),
+                            "testNumber": NSNumber(integer: 6),
+                            "testDecimal": NSDecimalNumber(string: "6"),
+                            "testString": "nil:TestEntity1:6",
+                            "testData": ("nil:TestEntity1:6" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!,
+                            "testDate": self.dateFormatter.dateFromString("2000-01-06T00:00:00Z")!,
+                            "throw_on_id": ""
+                        ],
+                        [
+                            "testEntityID": NSNumber(integer: 107),
+                            "testBoolean": NSNumber(bool: false),
+                            "testNumber": NSNumber(integer: 7),
+                            "testDecimal": NSDecimalNumber(string: "7"),
+                            "testString": "nil:TestEntity1:7",
+                            "testData": ("nil:TestEntity1:7" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!,
+                            "testDate": self.dateFormatter.dateFromString("2000-01-07T00:00:00Z")!
+                        ]
+                    ]
+                    let _ = try transaction.importUniqueObjects(
+                        Into(TestEntity1),
+                        sourceArray: sourceArray
+                    )
+                    XCTFail()
+                }
+                catch _ as TestIDError {
+                    
+                    errorExpectation.fulfill()
+                    XCTAssertEqual(transaction.fetchCount(From(TestEntity1)), 5)
+                    
+                    XCTAssertNil(transaction.fetchOne(From(TestEntity1), Where("testEntityID", isEqualTo: 106)))
+                    XCTAssertNil(transaction.fetchOne(From(TestEntity1), Where("testEntityID", isEqualTo: 107)))
+                }
+                catch {
+                    
+                    XCTFail()
+                }
+                self.checkExpectationsImmediately()
+                transaction.context.reset()
+            }
+            stack.beginSynchronous { (transaction) in
+                
+                let errorExpectation = self.expectationWithDescription("error")
+                do {
+                    
+                    let sourceArray: [TestEntity1.ImportSource] = [
+                        [
+                            "testEntityID": NSNumber(integer: 106),
+                            "testBoolean": NSNumber(bool: true),
+                            "testNumber": NSNumber(integer: 6),
+                            "testDecimal": NSDecimalNumber(string: "6"),
+                            "testString": "nil:TestEntity1:6",
+                            "testData": ("nil:TestEntity1:6" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!,
+                            "testDate": self.dateFormatter.dateFromString("2000-01-06T00:00:00Z")!,
+                            "throw_on_insert": ""
+                        ],
+                        [
+                            "testEntityID": NSNumber(integer: 107),
+                            "testBoolean": NSNumber(bool: false),
+                            "testNumber": NSNumber(integer: 7),
+                            "testDecimal": NSDecimalNumber(string: "7"),
+                            "testString": "nil:TestEntity1:7",
+                            "testData": ("nil:TestEntity1:7" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!,
+                            "testDate": self.dateFormatter.dateFromString("2000-01-07T00:00:00Z")!
+                        ]
+                    ]
+                    let _ = try transaction.importUniqueObjects(
+                        Into(TestEntity1),
+                        sourceArray: sourceArray
+                    )
+                    XCTFail()
+                }
+                catch _ as TestInsertError {
+                    
+                    errorExpectation.fulfill()
+                    
+                    let object = transaction.fetchOne(From(TestEntity1), Where("testEntityID", isEqualTo: 106))
+                    XCTAssertNotNil(object)
+                    XCTAssertEqual(object?.testEntityID, NSNumber(integer: 106))
+                    XCTAssertNil(object?.testBoolean)
+                    XCTAssertNil(object?.testNumber)
+                    XCTAssertNil(object?.testDecimal)
+                    XCTAssertNil(object?.testString)
+                    XCTAssertNil(object?.testData)
+                    XCTAssertNil(object?.testDate)
+                }
+                catch {
+                    
+                    XCTFail()
+                }
+                self.checkExpectationsImmediately()
+                transaction.context.reset()
+            }
+            stack.beginSynchronous { (transaction) in
+                
+                let errorExpectation = self.expectationWithDescription("error")
+                do {
+                    
+                    let sourceArray: [TestEntity1.ImportSource] = [
+                        [
+                            "testEntityID": NSNumber(integer: 105),
+                            "testBoolean": NSNumber(bool: false),
+                            "testNumber": NSNumber(integer: 6),
+                            "testDecimal": NSDecimalNumber(string: "6"),
+                            "testString": "nil:TestEntity1:6",
+                            "testData": ("nil:TestEntity1:6" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!,
+                            "testDate": self.dateFormatter.dateFromString("2000-01-06T00:00:00Z")!,
+                            "throw_on_update": ""
+                        ]
+                    ]
+                    let _ = try transaction.importUniqueObjects(
+                        Into(TestEntity1),
+                        sourceArray: sourceArray
+                    )
+                    XCTFail()
+                }
+                catch _ as TestUpdateError {
+                    
+                    errorExpectation.fulfill()
+                    XCTAssertEqual(transaction.fetchCount(From(TestEntity1)), 5)
+                    
+                    let object = transaction.fetchOne(From(TestEntity1), Where("testEntityID", isEqualTo: 105))
+                    XCTAssertNotNil(object)
+                    XCTAssertEqual(object?.testEntityID, NSNumber(integer: 105))
+                    XCTAssertEqual(object?.testBoolean, NSNumber(bool: true))
+                    XCTAssertEqual(object?.testNumber, NSNumber(integer: 5))
+                    XCTAssertEqual(object?.testDecimal, NSDecimalNumber(string: "5"))
+                    XCTAssertEqual(object?.testString, "nil:TestEntity1:5")
+                    XCTAssertEqual(object?.testData, ("nil:TestEntity1:5" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!)
+                    XCTAssertEqual(object?.testDate, self.dateFormatter.dateFromString("2000-01-05T00:00:00Z")!)
+                    
+                    let existingObjects = transaction.fetchAll(From(TestEntity1), Where("testEntityID", isEqualTo: 105))
+                    XCTAssertNotNil(existingObjects)
+                    XCTAssertEqual(existingObjects?.count, 1)
+                    
+                    let existingObject = existingObjects?[0]
+                    XCTAssertEqual(existingObject, object)
+                }
+                catch {
+                    
+                    XCTFail()
+                }
+                self.checkExpectationsImmediately()
+                transaction.context.reset()
+            }
+        }
+    }
+    
+    @objc
+    dynamic func test_ThatImportUniqueObjects_CanImportCorrectly() {
+        
+        self.prepareStack { (stack) in
+            
+            self.prepareTestDataForStack(stack)
+            
+            stack.beginSynchronous { (transaction) in
+                
+                do {
+                    
+                    let sourceArray: [TestEntity1.ImportSource] = [
+                        [
+                            "testEntityID": NSNumber(integer: 105),
+                            "testBoolean": NSNumber(bool: false),
+                            "testNumber": NSNumber(integer: 15),
+                            "testDecimal": NSDecimalNumber(string: "15"),
+                            "testString": "nil:TestEntity1:15",
+                            "testData": ("nil:TestEntity1:15" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!,
+                            "testDate": self.dateFormatter.dateFromString("2000-01-15T00:00:00Z")!
+                        ],
+                        [
+                            "testEntityID": NSNumber(integer: 106),
+                            "testBoolean": NSNumber(bool: false),
+                            "testNumber": NSNumber(integer: 6),
+                            "testDecimal": NSDecimalNumber(string: "6"),
+                            "testString": "nil:TestEntity1:6",
+                            "testData": ("nil:TestEntity1:6" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!,
+                            "testDate": self.dateFormatter.dateFromString("2000-01-06T00:00:00Z")!
+                        ]
+                    ]
+                    let objects = try transaction.importUniqueObjects(
+                        Into(TestEntity1),
+                        sourceArray: sourceArray
+                    )
+                    XCTAssertEqual(objects.count, sourceArray.count)
+                    XCTAssertEqual(transaction.fetchCount(From(TestEntity1)), 6)
+                    for i in 0 ..< sourceArray.count {
+                        
+                        let object = objects[i]
+                        let dictionary = sourceArray[i]
+                        
+                        XCTAssertEqual(object.testEntityID, dictionary["testEntityID"] as? NSNumber)
+                        XCTAssertEqual(object.testBoolean, dictionary["testBoolean"] as? NSNumber)
+                        XCTAssertEqual(object.testNumber, dictionary["testNumber"] as? NSNumber)
+                        XCTAssertEqual(object.testDecimal, dictionary["testDecimal"] as? NSDecimalNumber)
+                        XCTAssertEqual(object.testString, dictionary["testString"] as? String)
+                        XCTAssertEqual(object.testData, dictionary["testData"] as? NSData)
+                        XCTAssertEqual(object.testDate, dictionary["testDate"] as? NSDate)
+                    }
+                    let existingObjects = transaction.fetchAll(From(TestEntity1), Where("testEntityID", isEqualTo: 105))
+                    XCTAssertNotNil(existingObjects)
+                    XCTAssertEqual(existingObjects?.count, 1)
+                    
+                    let existingObject = existingObjects?[0]
+                    XCTAssertEqual(existingObject, objects[0])
+                }
+                catch {
+                    
+                    XCTFail()
+                }
+                transaction.context.reset()
+            }
+        }
+    }
+}
+
+
+// MARK: - TestInsertError
+
+private struct TestInsertError: ErrorType {}
+
+
+// MARK: - TestUpdateError
+
+private struct TestUpdateError: ErrorType {}
+
+
+// MARK: - TestIDError
+
+private struct TestIDError: ErrorType {}
+
+
+// MARK: - TestEntity1
+
+extension TestEntity1: ImportableUniqueObject {
+    
+    // MARK: ImportableObject
+    
+    typealias ImportSource = [String: AnyObject]
+    
+    static func shouldInsertFromImportSource(source: [String: AnyObject], inTransaction transaction: BaseDataTransaction) -> Bool {
+        
+        return source["skip_insert"] == nil
+    }
+    
+    func didInsertFromImportSource(source: [String: AnyObject], inTransaction transaction: BaseDataTransaction) throws {
+        
+        if let _ = source["throw_on_insert"] {
+            
+            throw TestInsertError()
+        }
+        self.testBoolean = source["testBoolean"] as? NSNumber
+        self.testNumber = source["testNumber"] as? NSNumber
+        self.testDecimal = source["testDecimal"] as? NSDecimalNumber
+        self.testString = source["testString"] as? String
+        self.testData = source["testData"] as? NSData
+        self.testDate = source["testDate"] as? NSDate
+        self.testNil = nil
+    }
+    
+    
+    // MARK: ImportableUniqueObject
+    
+    typealias UniqueIDType = NSNumber
+    
+    static var uniqueIDKeyPath: String {
+        
+        return "testEntityID"
+    }
+    
+    var uniqueIDValue: NSNumber {
+        
+        get {
+            
+            guard let ID = self.testEntityID else {
+                
+                XCTFail()
+                return 0
+            }
+            return ID
+        }
+        set {
+            
+            self.testEntityID = newValue
+        }
+    }
+    
+    static func shouldUpdateFromImportSource(source: [String: AnyObject], inTransaction transaction: BaseDataTransaction) -> Bool {
+        
+        return source["skip_update"] == nil
+    }
+    
+    static func uniqueIDFromImportSource(source: [String: AnyObject], inTransaction transaction: BaseDataTransaction) throws -> NSNumber? {
+        
+        if let _ = source["throw_on_id"] {
+            
+            throw TestIDError()
+        }
+        return source["testEntityID"] as? NSNumber
+    }
+    
+    func updateFromImportSource(source: [String: AnyObject], inTransaction transaction: BaseDataTransaction) throws {
+        
+        if let _ = source["throw_on_update"] {
+            
+            throw TestUpdateError()
+        }
+        self.testBoolean = source["testBoolean"] as? NSNumber
+        self.testNumber = source["testNumber"] as? NSNumber
+        self.testDecimal = source["testDecimal"] as? NSDecimalNumber
+        self.testString = source["testString"] as? String
+        self.testData = source["testData"] as? NSData
+        self.testDate = source["testDate"] as? NSDate
+        self.testNil = nil
+    }
+}

CoreStoreTests/IntoTests.swift

@@ -0,0 +1,204 @@
+//
+//  IntoTests.swift
+//  CoreStore
+//
+//  Copyright © 2016 John Rommel Estropia
+//
+//  Permission is hereby granted, free of charge, to any person obtaining a copy
+//  of this software and associated documentation files (the "Software"), to deal
+//  in the Software without restriction, including without limitation the rights
+//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+//  copies of the Software, and to permit persons to whom the Software is
+//  furnished to do so, subject to the following conditions:
+//
+//  The above copyright notice and this permission notice shall be included in all
+//  copies or substantial portions of the Software.
+//
+//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+//  SOFTWARE.
+//
+
+import XCTest
+
+@testable
+import CoreStore
+
+
+//MARK: - IntoTests
+
+final class IntoTests: XCTestCase {
+    
+    @objc
+    dynamic func test_ThatIntoClauseConstants_AreCorrect() {
+        
+        XCTAssertEqual(Into<NSManagedObject>.defaultConfigurationName, "PF_DEFAULT_CONFIGURATION_NAME")
+    }
+    
+    @objc
+    dynamic func test_ThatIntoClauses_ConfigureCorrectly() {
+        
+        do {
+            
+            let into = Into()
+            XCTAssert(into.entityClass === NSManagedObject.self)
+            XCTAssertNil(into.configuration)
+            XCTAssertTrue(into.inferStoreIfPossible)
+        }
+        do {
+            
+            let into = Into<TestEntity1>()
+            XCTAssert(into.entityClass === TestEntity1.self)
+            XCTAssertNil(into.configuration)
+            XCTAssertTrue(into.inferStoreIfPossible)
+        }
+        do {
+            
+            let into = Into(TestEntity1)
+            XCTAssert(into.entityClass === TestEntity1.self)
+            XCTAssertNil(into.configuration)
+            XCTAssertTrue(into.inferStoreIfPossible)
+        }
+        do {
+            
+            let into = Into(TestEntity1.self as AnyClass)
+            XCTAssert(into.entityClass === TestEntity1.self)
+            XCTAssertNil(into.configuration)
+            XCTAssertTrue(into.inferStoreIfPossible)
+        }
+        do {
+            
+            let into = Into<TestEntity1>("Config1")
+            XCTAssert(into.entityClass === TestEntity1.self)
+            XCTAssertEqual(into.configuration, "Config1")
+            XCTAssertFalse(into.inferStoreIfPossible)
+        }
+        do {
+            
+            let into = Into(TestEntity1.self, "Config1")
+            XCTAssert(into.entityClass === TestEntity1.self)
+            XCTAssertEqual(into.configuration, "Config1")
+            XCTAssertFalse(into.inferStoreIfPossible)
+        }
+        do {
+            
+            let into = Into(TestEntity1.self as AnyClass, "Config1")
+            XCTAssert(into.entityClass === TestEntity1.self)
+            XCTAssertEqual(into.configuration, "Config1")
+            XCTAssertFalse(into.inferStoreIfPossible)
+        }
+    }
+    
+    @objc
+    dynamic func test_ThatIntoClauses_AreEquatable() {
+        
+        do {
+            
+            let into = Into()
+            XCTAssertEqual(into, Into())
+            XCTAssertEqual(into, Into<NSManagedObject>())
+            XCTAssertEqual(into, Into(NSManagedObject.self as AnyClass))
+            XCTAssertFalse(into == Into<TestEntity1>())
+            XCTAssertNotEqual(into, Into<NSManagedObject>("Config1"))
+        }
+        do {
+            
+            let into = Into<TestEntity1>()
+            XCTAssertEqual(into, Into(TestEntity1))
+            XCTAssertEqual(into, Into(TestEntity1.self as AnyClass))
+            XCTAssertFalse(into == Into<TestEntity2>())
+            XCTAssertNotEqual(into, Into<TestEntity1>("Config1"))
+        }
+        do {
+            
+            let into = Into(TestEntity1)
+            XCTAssertEqual(into, Into<TestEntity1>())
+            XCTAssertEqual(into, Into(TestEntity1.self as AnyClass))
+            XCTAssertFalse(into == Into<TestEntity2>())
+            XCTAssertNotEqual(into, Into<TestEntity1>("Config1"))
+        }
+        do {
+            
+            let into = Into(TestEntity1.self as AnyClass)
+            XCTAssert(into == Into<TestEntity1>())
+            XCTAssertEqual(into, Into(TestEntity1))
+            XCTAssertFalse(into == Into<TestEntity2>())
+            XCTAssertFalse(into == Into<TestEntity1>("Config1"))
+        }
+        do {
+            
+            let into = Into<TestEntity1>("Config1")
+            XCTAssertEqual(into, Into(TestEntity1.self, "Config1"))
+            XCTAssertEqual(into, Into(TestEntity1.self as AnyClass, "Config1"))
+            XCTAssertFalse(into == Into<TestEntity2>("Config1"))
+            XCTAssertNotEqual(into, Into<TestEntity1>("Config2"))
+        }
+        do {
+            
+            let into = Into(TestEntity1.self, "Config1")
+            XCTAssertEqual(into, Into(TestEntity1.self, "Config1"))
+            XCTAssertEqual(into, Into<TestEntity1>("Config1"))
+            XCTAssertFalse(into == Into<TestEntity2>("Config1"))
+            XCTAssertNotEqual(into, Into<TestEntity1>("Config2"))
+        }
+        do {
+            
+            let into = Into(TestEntity1.self as AnyClass, "Config1")
+            XCTAssert(into == Into<TestEntity1>("Config1"))
+            XCTAssertEqual(into, Into(TestEntity1.self, "Config1"))
+            XCTAssertFalse(into == Into<TestEntity2>("Config1"))
+            XCTAssertFalse(into == Into<TestEntity1>("Config2"))
+        }
+    }
+    
+    @objc
+    dynamic func test_ThatIntoClauses_BridgeCorrectly() {
+        
+        do {
+            
+            let into = Into()
+            let objcInto = into.bridgeToObjectiveC
+            XCTAssertEqual(into, objcInto.bridgeToSwift)
+        }
+        do {
+            
+            let into = Into<TestEntity1>()
+            let objcInto = into.bridgeToObjectiveC
+            XCTAssertTrue(into == objcInto.bridgeToSwift)
+        }
+        do {
+            
+            let into = Into(TestEntity1.self as AnyClass)
+            let objcInto = into.bridgeToObjectiveC
+            XCTAssertEqual(into, objcInto.bridgeToSwift)
+        }
+        do {
+            
+            let into = Into(TestEntity1.self as AnyClass)
+            let objcInto = into.bridgeToObjectiveC
+            XCTAssertEqual(into, objcInto.bridgeToSwift)
+        }
+        do {
+            
+            let into = Into<TestEntity1>("Config1")
+            let objcInto = into.bridgeToObjectiveC
+            XCTAssertTrue(into == objcInto.bridgeToSwift)
+        }
+        do {
+            
+            let into = Into(TestEntity1.self, "Config1")
+            let objcInto = into.bridgeToObjectiveC
+            XCTAssertTrue(into == objcInto.bridgeToSwift)
+        }
+        do {
+            
+            let into = Into(TestEntity1.self as AnyClass, "Config1")
+            let objcInto = into.bridgeToObjectiveC
+            XCTAssertTrue(into == objcInto.bridgeToSwift)
+        }
+    }
+}

CoreStoreTests/ListObserverTests.swift

@@ -0,0 +1,682 @@
+//
+//  ListObserverTests.swift
+//  CoreStore
+//
+//  Copyright © 2016 John Rommel Estropia
+//
+//  Permission is hereby granted, free of charge, to any person obtaining a copy
+//  of this software and associated documentation files (the "Software"), to deal
+//  in the Software without restriction, including without limitation the rights
+//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+//  copies of the Software, and to permit persons to whom the Software is
+//  furnished to do so, subject to the following conditions:
+//
+//  The above copyright notice and this permission notice shall be included in all
+//  copies or substantial portions of the Software.
+//
+//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+//  SOFTWARE.
+//
+
+import XCTest
+
+@testable
+import CoreStore
+
+
+#if os(iOS) || os(watchOS) || os(tvOS)
+
+// MARK: - ListObserverTests
+
+class ListObserverTests: BaseTestDataTestCase {
+    
+    @objc
+    dynamic func test_ThatListObservers_CanReceiveInsertNotifications() {
+        
+        self.prepareStack { (stack) in
+            
+            let observer = TestListObserver()
+            let monitor = stack.monitorSectionedList(
+                From(TestEntity1),
+                SectionBy("testBoolean"),
+                OrderBy(.Ascending("testBoolean"), .Ascending("testEntityID"))
+            )
+            monitor.addObserver(observer)
+            
+            XCTAssertFalse(monitor.hasSections())
+            XCTAssertFalse(monitor.hasObjects())
+            XCTAssertTrue(monitor.objectsInAllSections().isEmpty)
+            
+            var events = 0
+            
+            let willChangeExpectation = self.expectationForNotification(
+                "listMonitorWillChange:",
+                object: observer,
+                handler: { (note) -> Bool in
+                    
+                    XCTAssertEqual(events, 0)
+                    XCTAssertEqual((note.userInfo ?? [:]), NSDictionary())
+                    defer {
+                        
+                        events += 1
+                    }
+                    return events == 0
+                }
+            )
+            let didInsertSectionExpectation = self.expectationForNotification(
+                "listMonitor:didInsertSection:toSectionIndex:",
+                object: observer,
+                handler: { (note) -> Bool in
+                    
+                    XCTAssertEqual(events, 1)
+                    XCTAssertEqual(
+                        (note.userInfo ?? [:]),
+                        [
+                            "sectionInfo": monitor.sectionInfoAtIndex(0),
+                            "sectionIndex": 0
+                        ] as NSDictionary
+                    )
+                    defer {
+                        
+                        events += 1
+                    }
+                    return events == 1
+                }
+            )
+            let didInsertObjectExpectation = self.expectationForNotification(
+                "listMonitor:didInsertObject:toIndexPath:",
+                object: observer,
+                handler: { (note) -> Bool in
+                    
+                    XCTAssertEqual(events, 2)
+                    
+                    let userInfo = note.userInfo
+                    XCTAssertNotNil(userInfo)
+                    XCTAssertEqual(
+                        Set(((userInfo as? [String: AnyObject]) ?? [:]).keys),
+                        ["indexPath", "object"]
+                    )
+                    
+                    let indexPath = userInfo?["indexPath"] as? NSIndexPath
+                    XCTAssertEqual(indexPath?.section, 0)
+                    XCTAssertEqual(indexPath?.row, 0)
+                    
+                    let object = userInfo?["object"] as? TestEntity1
+                    XCTAssertEqual(object?.testBoolean, NSNumber(bool: true))
+                    XCTAssertEqual(object?.testNumber, NSNumber(integer: 1))
+                    XCTAssertEqual(object?.testDecimal, NSDecimalNumber(string: "1"))
+                    XCTAssertEqual(object?.testString, "nil:TestEntity1:1")
+                    XCTAssertEqual(object?.testData, ("nil:TestEntity1:1" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!)
+                    XCTAssertEqual(object?.testDate, self.dateFormatter.dateFromString("2000-01-01T00:00:00Z")!)
+                    defer {
+                        
+                        events += 1
+                    }
+                    return events == 2
+                }
+            )
+            let didChangeExpectation = self.expectationForNotification(
+                "listMonitorDidChange:",
+                object: observer,
+                handler: { (note) -> Bool in
+                    
+                    XCTAssertEqual((note.userInfo ?? [:]), NSDictionary())
+                    defer {
+                        
+                        events += 1
+                    }
+                    return events == 3
+                }
+            )
+            let saveExpectation = self.expectationWithDescription("save")
+            stack.beginAsynchronous { (transaction) in
+                
+                let object = transaction.create(Into(TestEntity1))
+                object.testBoolean = NSNumber(bool: true)
+                object.testNumber = NSNumber(integer: 1)
+                object.testDecimal = NSDecimalNumber(string: "1")
+                object.testString = "nil:TestEntity1:1"
+                object.testData = ("nil:TestEntity1:1" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!
+                object.testDate = self.dateFormatter.dateFromString("2000-01-01T00:00:00Z")!
+                
+                transaction.commit { (result) in
+                    
+                    switch result {
+                        
+                    case .Success(let hasChanges):
+                        XCTAssertTrue(hasChanges)
+                        saveExpectation.fulfill()
+                        
+                    case .Failure:
+                        XCTFail()
+                    }
+                }
+            }
+            self.waitAndCheckExpectations()
+        }
+    }
+    
+    @objc
+    dynamic func test_ThatListObservers_CanReceiveUpdateNotifications() {
+        
+        self.prepareStack { (stack) in
+            
+            self.prepareTestDataForStack(stack)
+            
+            let observer = TestListObserver()
+            let monitor = stack.monitorSectionedList(
+                From(TestEntity1),
+                SectionBy("testBoolean"),
+                OrderBy(.Ascending("testBoolean"), .Ascending("testEntityID"))
+            )
+            monitor.addObserver(observer)
+            
+            XCTAssertTrue(monitor.hasSections())
+            XCTAssertEqual(monitor.numberOfSections(), 2)
+            XCTAssertTrue(monitor.hasObjects())
+            XCTAssertTrue(monitor.hasObjectsInSection(0))
+            XCTAssertEqual(monitor.numberOfObjectsInSection(0), 2)
+            XCTAssertEqual(monitor.numberOfObjectsInSection(1), 3)
+            
+            var events = 0
+            
+            let willChangeExpectation = self.expectationForNotification(
+                "listMonitorWillChange:",
+                object: observer,
+                handler: { (note) -> Bool in
+                    
+                    XCTAssertEqual(events, 0)
+                    XCTAssertEqual((note.userInfo ?? [:]), NSDictionary())
+                    defer {
+                        
+                        events += 1
+                    }
+                    return events == 0
+                }
+            )
+            for _ in 1 ... 2 {
+                
+                let didUpdateObjectExpectation = self.expectationForNotification(
+                    "listMonitor:didUpdateObject:atIndexPath:",
+                    object: observer,
+                    handler: { (note) -> Bool in
+                        
+                        XCTAssert(events == 1 || events == 2)
+                        
+                        let userInfo = note.userInfo
+                        XCTAssertNotNil(userInfo)
+                        XCTAssertEqual(
+                            Set(((userInfo as? [String: AnyObject]) ?? [:]).keys),
+                            ["indexPath", "object"]
+                        )
+                        
+                        let indexPath = userInfo?["indexPath"] as? NSIndexPath
+                        let object = userInfo?["object"] as? TestEntity1
+                        
+                        switch object?.testEntityID {
+                            
+                        case NSNumber(integer: 101)?:
+                            XCTAssertEqual(indexPath?.section, 1)
+                            XCTAssertEqual(indexPath?.row, 0)
+                            
+                            XCTAssertEqual(object?.testBoolean, NSNumber(bool: true))
+                            XCTAssertEqual(object?.testNumber, NSNumber(integer: 11))
+                            XCTAssertEqual(object?.testDecimal, NSDecimalNumber(string: "11"))
+                            XCTAssertEqual(object?.testString, "nil:TestEntity1:11")
+                            XCTAssertEqual(object?.testData, ("nil:TestEntity1:11" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!)
+                            XCTAssertEqual(object?.testDate, self.dateFormatter.dateFromString("2000-01-11T00:00:00Z")!)
+                            
+                        case NSNumber(integer: 102)?:
+                            XCTAssertEqual(indexPath?.section, 0)
+                            XCTAssertEqual(indexPath?.row, 0)
+                            
+                            XCTAssertEqual(object?.testBoolean, NSNumber(bool: false))
+                            XCTAssertEqual(object?.testNumber, NSNumber(integer: 22))
+                            XCTAssertEqual(object?.testDecimal, NSDecimalNumber(string: "22"))
+                            XCTAssertEqual(object?.testString, "nil:TestEntity1:22")
+                            XCTAssertEqual(object?.testData, ("nil:TestEntity1:22" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!)
+                            XCTAssertEqual(object?.testDate, self.dateFormatter.dateFromString("2000-01-22T00:00:00Z")!)
+                            
+                        default:
+                            XCTFail()
+                        }
+                        defer {
+                            
+                            events += 1
+                        }
+                        return events == 1 || events == 2
+                    }
+                )
+            }
+            let didChangeExpectation = self.expectationForNotification(
+                "listMonitorDidChange:",
+                object: observer,
+                handler: { (note) -> Bool in
+                    
+                    XCTAssertEqual(events, 3)
+                    XCTAssertEqual((note.userInfo ?? [:]), NSDictionary())
+                    defer {
+                        
+                        events += 1
+                    }
+                    return events == 3
+                }
+            )
+            let saveExpectation = self.expectationWithDescription("save")
+            stack.beginAsynchronous { (transaction) in
+                
+                if let object = transaction.fetchOne(
+                    From(TestEntity1),
+                    Where("testEntityID", isEqualTo: 101)) {
+                    
+                    object.testNumber = NSNumber(integer: 11)
+                    object.testDecimal = NSDecimalNumber(string: "11")
+                    object.testString = "nil:TestEntity1:11"
+                    object.testData = ("nil:TestEntity1:11" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!
+                    object.testDate = self.dateFormatter.dateFromString("2000-01-11T00:00:00Z")!
+                }
+                else {
+                    
+                    XCTFail()
+                }
+                if let object = transaction.fetchOne(
+                    From(TestEntity1),
+                    Where("testEntityID", isEqualTo: 102)) {
+                    
+                    object.testNumber = NSNumber(integer: 22)
+                    object.testDecimal = NSDecimalNumber(string: "22")
+                    object.testString = "nil:TestEntity1:22"
+                    object.testData = ("nil:TestEntity1:22" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!
+                    object.testDate = self.dateFormatter.dateFromString("2000-01-22T00:00:00Z")!
+                }
+                else {
+                    
+                    XCTFail()
+                }
+                transaction.commit { (result) in
+                    
+                    switch result {
+                        
+                    case .Success(let hasChanges):
+                        XCTAssertTrue(hasChanges)
+                        saveExpectation.fulfill()
+                        
+                    case .Failure:
+                        XCTFail()
+                    }
+                }
+            }
+            self.waitAndCheckExpectations()
+        }
+    }
+    
+    @objc
+    dynamic func test_ThatListObservers_CanReceiveMoveNotifications() {
+        
+        self.prepareStack { (stack) in
+            
+            self.prepareTestDataForStack(stack)
+            
+            let observer = TestListObserver()
+            let monitor = stack.monitorSectionedList(
+                From(TestEntity1),
+                SectionBy("testBoolean"),
+                OrderBy(.Ascending("testBoolean"), .Ascending("testEntityID"))
+            )
+            monitor.addObserver(observer)
+            
+            var events = 0
+            
+            let willChangeExpectation = self.expectationForNotification(
+                "listMonitorWillChange:",
+                object: observer,
+                handler: { (note) -> Bool in
+                    
+                    XCTAssertEqual(events, 0)
+                    XCTAssertEqual((note.userInfo ?? [:]), NSDictionary())
+                    defer {
+                        
+                        events += 1
+                    }
+                    return events == 0
+                }
+            )
+            let didMoveObjectExpectation = self.expectationForNotification(
+                "listMonitor:didMoveObject:fromIndexPath:toIndexPath:",
+                object: observer,
+                handler: { (note) -> Bool in
+                    
+                    XCTAssertEqual(events, 1)
+                    
+                    let userInfo = note.userInfo
+                    XCTAssertNotNil(userInfo)
+                    XCTAssertEqual(
+                        Set(((userInfo as? [String: AnyObject]) ?? [:]).keys),
+                        ["fromIndexPath", "toIndexPath", "object"]
+                    )
+                    
+                    let fromIndexPath = userInfo?["fromIndexPath"] as? NSIndexPath
+                    XCTAssertEqual(fromIndexPath?.section, 0)
+                    XCTAssertEqual(fromIndexPath?.row, 0)
+                    
+                    let toIndexPath = userInfo?["toIndexPath"] as? NSIndexPath
+                    XCTAssertEqual(toIndexPath?.section, 1)
+                    XCTAssertEqual(toIndexPath?.row, 1)
+                    
+                    let object = userInfo?["object"] as? TestEntity1
+                    XCTAssertEqual(object?.testEntityID, NSNumber(integer: 102))
+                    XCTAssertEqual(object?.testBoolean, NSNumber(bool: true))
+                    
+                    defer {
+                        
+                        events += 1
+                    }
+                    return events == 1
+                }
+            )
+            let didChangeExpectation = self.expectationForNotification(
+                "listMonitorDidChange:",
+                object: observer,
+                handler: { (note) -> Bool in
+                    
+                    XCTAssertEqual(events, 2)
+                    XCTAssertEqual((note.userInfo ?? [:]), NSDictionary())
+                    defer {
+                        
+                        events += 1
+                    }
+                    return events == 2
+                }
+            )
+            let saveExpectation = self.expectationWithDescription("save")
+            stack.beginAsynchronous { (transaction) in
+                
+                if let object = transaction.fetchOne(
+                    From(TestEntity1),
+                    Where("testEntityID", isEqualTo: 102)) {
+                    
+                    object.testBoolean = NSNumber(bool: true)
+                }
+                else {
+                    
+                    XCTFail()
+                }
+                transaction.commit { (result) in
+                    
+                    switch result {
+                        
+                    case .Success(let hasChanges):
+                        XCTAssertTrue(hasChanges)
+                        saveExpectation.fulfill()
+                        
+                    case .Failure:
+                        XCTFail()
+                    }
+                }
+            }
+            self.waitAndCheckExpectations()
+        }
+    }
+    
+    @objc
+    dynamic func test_ThatListObservers_CanReceiveDeleteNotifications() {
+        
+        self.prepareStack { (stack) in
+            
+            self.prepareTestDataForStack(stack)
+            
+            let observer = TestListObserver()
+            let monitor = stack.monitorSectionedList(
+                From(TestEntity1),
+                SectionBy("testBoolean"),
+                OrderBy(.Ascending("testBoolean"), .Ascending("testEntityID"))
+            )
+            monitor.addObserver(observer)
+            
+            var events = 0
+            
+            let willChangeExpectation = self.expectationForNotification(
+                "listMonitorWillChange:",
+                object: observer,
+                handler: { (note) -> Bool in
+                    
+                    XCTAssertEqual(events, 0)
+                    XCTAssertEqual((note.userInfo ?? [:]), NSDictionary())
+                    defer {
+                        
+                        events += 1
+                    }
+                    return events == 0
+                }
+            )
+            for _ in 1 ... 2 {
+                
+                let didUpdateObjectExpectation = self.expectationForNotification(
+                    "listMonitor:didDeleteObject:fromIndexPath:",
+                    object: observer,
+                    handler: { (note) -> Bool in
+                        
+                        XCTAssert(events == 1 || events == 2)
+                        
+                        let userInfo = note.userInfo
+                        XCTAssertNotNil(userInfo)
+                        XCTAssertEqual(
+                            Set(((userInfo as? [String: AnyObject]) ?? [:]).keys),
+                            ["indexPath", "object"]
+                        )
+                        
+                        let indexPath = userInfo?["indexPath"] as? NSIndexPath
+                        
+                        XCTAssertEqual(indexPath?.section, 0)
+                        XCTAssert(indexPath?.row == 0 || indexPath?.row == 1)
+                        
+                        let object = userInfo?["object"] as? TestEntity1
+                        XCTAssertEqual(object?.deleted, true)
+                        
+                        defer {
+                            
+                            events += 1
+                        }
+                        return events == 1 || events == 2
+                    }
+                )
+            }
+            let didDeleteSectionExpectation = self.expectationForNotification(
+                "listMonitor:didDeleteSection:fromSectionIndex:",
+                object: observer,
+                handler: { (note) -> Bool in
+                    
+                    XCTAssertEqual(events, 3)
+                    
+                    let userInfo = note.userInfo
+                    XCTAssertNotNil(userInfo)
+                    XCTAssertEqual(
+                        Set(((userInfo as? [String: AnyObject]) ?? [:]).keys),
+                        ["sectionInfo", "sectionIndex"]
+                    )
+                    
+                    let sectionInfo = userInfo?["sectionInfo"]
+                    XCTAssertNotNil(sectionInfo)
+                    XCTAssertEqual(sectionInfo?.name, "0")
+                    
+                    let sectionIndex = userInfo?["sectionIndex"]
+                    XCTAssertEqual(sectionIndex as? NSNumber, NSNumber(integer: 0))
+                    
+                    defer {
+                        
+                        events += 1
+                    }
+                    return events == 3
+                }
+            )
+            let didChangeExpectation = self.expectationForNotification(
+                "listMonitorDidChange:",
+                object: observer,
+                handler: { (note) -> Bool in
+                    
+                    XCTAssertEqual(events, 4)
+                    XCTAssertEqual((note.userInfo ?? [:]), NSDictionary())
+                    defer {
+                        
+                        events += 1
+                    }
+                    return events == 4
+                }
+            )
+            let saveExpectation = self.expectationWithDescription("save")
+            stack.beginAsynchronous { (transaction) in
+                
+                transaction.deleteAll(
+                    From(TestEntity1),
+                    Where("testBoolean", isEqualTo: false)
+                )
+                transaction.commit { (result) in
+                    
+                    switch result {
+                        
+                    case .Success(let hasChanges):
+                        XCTAssertTrue(hasChanges)
+                        saveExpectation.fulfill()
+                        
+                    case .Failure:
+                        XCTFail()
+                    }
+                }
+            }
+            self.waitAndCheckExpectations()
+        }
+    }
+}
+
+
+// MARK: TestListObserver
+
+class TestListObserver: ListSectionObserver {
+    
+    // MARK: ListObserver
+    
+    typealias ListEntityType = TestEntity1
+    
+    func listMonitorWillChange(monitor: ListMonitor<TestEntity1>) {
+        
+        NSNotificationCenter.defaultCenter().postNotificationName(
+            "listMonitorWillChange:",
+            object: self,
+            userInfo: [:]
+        )
+    }
+    
+    func listMonitorDidChange(monitor: ListMonitor<TestEntity1>) {
+        
+        NSNotificationCenter.defaultCenter().postNotificationName(
+            "listMonitorDidChange:",
+            object: self,
+            userInfo: [:]
+        )
+    }
+    
+    func listMonitorWillRefetch(monitor: ListMonitor<TestEntity1>) {
+        
+        NSNotificationCenter.defaultCenter().postNotificationName(
+            "listMonitorWillRefetch:",
+            object: self,
+            userInfo: [:]
+        )
+    }
+    
+    func listMonitorDidRefetch(monitor: ListMonitor<TestEntity1>) {
+        
+        NSNotificationCenter.defaultCenter().postNotificationName(
+            "listMonitorDidRefetch:",
+            object: self,
+            userInfo: [:]
+        )
+    }
+    
+    
+    // MARK: ListObjectObserver
+    
+    func listMonitor(monitor: ListMonitor<TestEntity1>, didInsertObject object: TestEntity1, toIndexPath indexPath: NSIndexPath) {
+        
+        NSNotificationCenter.defaultCenter().postNotificationName(
+            "listMonitor:didInsertObject:toIndexPath:",
+            object: self,
+            userInfo: [
+                "object": object,
+                "indexPath": indexPath
+            ]
+        )
+    }
+    
+    func listMonitor(monitor: ListMonitor<TestEntity1>, didDeleteObject object: TestEntity1, fromIndexPath indexPath: NSIndexPath) {
+        
+        NSNotificationCenter.defaultCenter().postNotificationName(
+            "listMonitor:didDeleteObject:fromIndexPath:",
+            object: self,
+            userInfo: [
+                "object": object,
+                "indexPath": indexPath
+            ]
+        )
+    }
+    
+    func listMonitor(monitor: ListMonitor<TestEntity1>, didUpdateObject object: TestEntity1, atIndexPath indexPath: NSIndexPath) {
+        
+        NSNotificationCenter.defaultCenter().postNotificationName(
+            "listMonitor:didUpdateObject:atIndexPath:",
+            object: self,
+            userInfo: [
+                "object": object,
+                "indexPath": indexPath
+            ]
+        )
+    }
+    
+    
+    func listMonitor(monitor: ListMonitor<TestEntity1>, didMoveObject object: TestEntity1, fromIndexPath: NSIndexPath, toIndexPath: NSIndexPath) {
+        
+        NSNotificationCenter.defaultCenter().postNotificationName(
+            "listMonitor:didMoveObject:fromIndexPath:toIndexPath:",
+            object: self,
+            userInfo: [
+                "object": object,
+                "fromIndexPath": fromIndexPath,
+                "toIndexPath": toIndexPath
+            ]
+        )
+    }
+    
+    
+    // MARK: ListSectionObserver
+    
+    func listMonitor(monitor: ListMonitor<TestEntity1>, didInsertSection sectionInfo: NSFetchedResultsSectionInfo, toSectionIndex sectionIndex: Int) {
+        
+        NSNotificationCenter.defaultCenter().postNotificationName(
+            "listMonitor:didInsertSection:toSectionIndex:",
+            object: self,
+            userInfo: [
+                "sectionInfo": sectionInfo,
+                "sectionIndex": sectionIndex
+            ]
+        )
+    }
+    
+    func listMonitor(monitor: ListMonitor<TestEntity1>, didDeleteSection sectionInfo: NSFetchedResultsSectionInfo, fromSectionIndex sectionIndex: Int) {
+        
+        NSNotificationCenter.defaultCenter().postNotificationName(
+            "listMonitor:didDeleteSection:fromSectionIndex:",
+            object: self,
+            userInfo: [
+                "sectionInfo": sectionInfo,
+                "sectionIndex": sectionIndex
+            ]
+        )
+    }
+}
+
+#endif

CoreStoreTests/MigrationChainTests.swift

@@ -0,0 +1,147 @@
+//
+//  MigrationChainTests.swift
+//  CoreStore
+//
+//  Copyright © 2016 John Rommel Estropia
+//
+//  Permission is hereby granted, free of charge, to any person obtaining a copy
+//  of this software and associated documentation files (the "Software"), to deal
+//  in the Software without restriction, including without limitation the rights
+//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+//  copies of the Software, and to permit persons to whom the Software is
+//  furnished to do so, subject to the following conditions:
+//
+//  The above copyright notice and this permission notice shall be included in all
+//  copies or substantial portions of the Software.
+//
+//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+//  SOFTWARE.
+//
+
+import XCTest
+
+@testable
+import CoreStore
+
+
+// MARK: - MigrationChainTests
+
+final class MigrationChainTests: XCTestCase {
+    
+    @objc
+    dynamic func test_ThatNilMigrationChains_HaveNoVersions() {
+        
+        let chain: MigrationChain = nil
+        XCTAssertTrue(chain.valid)
+        XCTAssertTrue(chain.empty)
+        
+        XCTAssertFalse(chain.contains("version1"))
+        XCTAssertNil(chain.nextVersionFrom("version1"))
+    }
+    
+    @objc
+    dynamic func test_ThatStringMigrationChains_HaveOneVersion() {
+        
+        let chain: MigrationChain = "version1"
+        XCTAssertTrue(chain.valid)
+        XCTAssertTrue(chain.empty)
+        
+        XCTAssertTrue(chain.contains("version1"))
+        XCTAssertFalse(chain.contains("version2"))
+        
+        XCTAssertNil(chain.nextVersionFrom("version1"))
+        XCTAssertNil(chain.nextVersionFrom("version2"))
+    }
+    
+    @objc
+    dynamic func test_ThatArrayMigrationChains_HaveLinearVersions() {
+        
+        let chain: MigrationChain = ["version1", "version2", "version3", "version4"]
+        XCTAssertTrue(chain.valid)
+        XCTAssertFalse(chain.empty)
+        
+        XCTAssertTrue(chain.contains("version1"))
+        XCTAssertTrue(chain.contains("version2"))
+        XCTAssertTrue(chain.contains("version3"))
+        XCTAssertTrue(chain.contains("version4"))
+        XCTAssertFalse(chain.contains("version5"))
+        
+        XCTAssertEqual(chain.nextVersionFrom("version1"), "version2")
+        XCTAssertEqual(chain.nextVersionFrom("version2"), "version3")
+        XCTAssertEqual(chain.nextVersionFrom("version3"), "version4")
+        XCTAssertNil(chain.nextVersionFrom("version4"))
+        XCTAssertNil(chain.nextVersionFrom("version5"))
+    }
+    
+    @objc
+    dynamic func test_ThatDictionaryMigrationChains_HaveTreeVersions() {
+        
+        let chain: MigrationChain = [
+            "version1": "version4",
+            "version2": "version3",
+            "version3": "version4"
+        ]
+        XCTAssertTrue(chain.valid)
+        XCTAssertFalse(chain.empty)
+        
+        XCTAssertTrue(chain.contains("version1"))
+        XCTAssertTrue(chain.contains("version2"))
+        XCTAssertTrue(chain.contains("version3"))
+        XCTAssertTrue(chain.contains("version4"))
+        XCTAssertFalse(chain.contains("version5"))
+        
+        XCTAssertEqual(chain.nextVersionFrom("version1"), "version4")
+        XCTAssertEqual(chain.nextVersionFrom("version2"), "version3")
+        XCTAssertEqual(chain.nextVersionFrom("version3"), "version4")
+        XCTAssertNil(chain.nextVersionFrom("version4"))
+        XCTAssertNil(chain.nextVersionFrom("version5"))
+        
+// The cases below will trigger assertion failures internally
+
+//        let linearLoopChain: MigrationChain = ["version1", "version2", "version1", "version3", "version4"]
+//        XCTAssertFalse(linearLoopChain.valid, "linearLoopChain.valid")
+//
+//        let treeAmbiguousChain: MigrationChain = [
+//            "version1": "version4",
+//            "version2": "version3",
+//            "version1": "version2",
+//            "version3": "version4"
+//        ]
+//        XCTAssertFalse(treeAmbiguousChain.valid, "treeAmbiguousChain.valid")
+    }
+    
+    @objc
+    dynamic func test_ThatMigrationChains_AreEquatable() {
+        
+        do {
+            
+            let chain1: MigrationChain = nil
+            let chain2: MigrationChain = []
+            let chain3: MigrationChain = [:]
+            XCTAssertEqual(chain1, chain2)
+            XCTAssertEqual(chain2, chain3)
+            XCTAssertEqual(chain3, chain1)
+        }
+        do {
+            
+            let chain1: MigrationChain = "version1"
+            let chain2: MigrationChain = ["version1"]
+            XCTAssertEqual(chain1, chain2)
+        }
+        do {
+            
+            let chain1: MigrationChain = ["version1", "version2", "version3", "version4"]
+            let chain2: MigrationChain = [
+                "version1": "version2",
+                "version2": "version3",
+                "version3": "version4"
+            ]
+            XCTAssertEqual(chain1, chain2)
+        }
+    }
+}