WIP

Demo/Demo.xcodeproj/project.pbxproj

@@ -7,6 +7,10 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
+		B531EFE724EA762D005F247D /* Menu.PlaceholderView.swift in Sources */ = {isa = PBXBuildFile; fileRef = B531EFE624EA762D005F247D /* Menu.PlaceholderView.swift */; };
+		B531EFE924EB5A53005F247D /* Modern.PokedexDemo.PokedexEntry.swift in Sources */ = {isa = PBXBuildFile; fileRef = B531EFE824EB5A52005F247D /* Modern.PokedexDemo.PokedexEntry.swift */; };
+		B531EFEB24EB5ECD005F247D /* Modern.PokedexDemo.Service.swift in Sources */ = {isa = PBXBuildFile; fileRef = B531EFEA24EB5ECD005F247D /* Modern.PokedexDemo.Service.swift */; };
+		B531EFED24EB7453005F247D /* Modern.PokedexDemo.MainView.swift in Sources */ = {isa = PBXBuildFile; fileRef = B531EFEC24EB7453005F247D /* Modern.PokedexDemo.MainView.swift */; };
 		B5A3911D24E5429200E7E8BD /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = B5A3911C24E5429200E7E8BD /* AppDelegate.swift */; };
 		B5A3911F24E5429200E7E8BD /* SceneDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = B5A3911E24E5429200E7E8BD /* SceneDelegate.swift */; };
 		B5A3912124E5429200E7E8BD /* Menu.MainView.swift in Sources */ = {isa = PBXBuildFile; fileRef = B5A3912024E5429200E7E8BD /* Menu.MainView.swift */; };
@@ -81,6 +85,10 @@
 /* End PBXCopyFilesBuildPhase section */
 
 /* Begin PBXFileReference section */
+		B531EFE624EA762D005F247D /* Menu.PlaceholderView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Menu.PlaceholderView.swift; sourceTree = "<group>"; };
+		B531EFE824EB5A52005F247D /* Modern.PokedexDemo.PokedexEntry.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Modern.PokedexDemo.PokedexEntry.swift; sourceTree = "<group>"; };
+		B531EFEA24EB5ECD005F247D /* Modern.PokedexDemo.Service.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Modern.PokedexDemo.Service.swift; sourceTree = "<group>"; };
+		B531EFEC24EB7453005F247D /* Modern.PokedexDemo.MainView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Modern.PokedexDemo.MainView.swift; sourceTree = "<group>"; };
 		B5A3911924E5429200E7E8BD /* Demo.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = Demo.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		B5A3911C24E5429200E7E8BD /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
 		B5A3911E24E5429200E7E8BD /* SceneDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SceneDelegate.swift; sourceTree = "<group>"; };
@@ -217,6 +225,7 @@
 				B5A3913324E6170500E7E8BD /* Menu.swift */,
 				B5A3912024E5429200E7E8BD /* Menu.MainView.swift */,
 				B5A3915224E6537F00E7E8BD /* Menu.ItemView.swift */,
+				B531EFE624EA762D005F247D /* Menu.PlaceholderView.swift */,
 			);
 			path = Menu;
 			sourceTree = "<group>";
@@ -364,6 +373,8 @@
 			isa = PBXGroup;
 			children = (
 				B5A391B024E96AF600E7E8BD /* Modern.PokedexDemo.swift */,
+				B531EFEA24EB5ECD005F247D /* Modern.PokedexDemo.Service.swift */,
+				B531EFEC24EB7453005F247D /* Modern.PokedexDemo.MainView.swift */,
 				B5A391B224E96B7400E7E8BD /* Models */,
 			);
 			path = PokedexDemo;
@@ -372,6 +383,7 @@
 		B5A391B224E96B7400E7E8BD /* Models */ = {
 			isa = PBXGroup;
 			children = (
+				B531EFE824EB5A52005F247D /* Modern.PokedexDemo.PokedexEntry.swift */,
 				B5A391B324E96C0A00E7E8BD /* Modern.PokedexDemo.PokemonSpecies.swift */,
 				B5A391B824E96F8500E7E8BD /* Modern.PokedexDemo.PokemonForm.swift */,
 				B5A391B524E96C5500E7E8BD /* Modern.PokedexDemo.Move.swift */,
@@ -460,46 +472,50 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				B5A3918824E7A8F900E7E8BD /* Modern.TimeZonesDemo.MainView.swift in Sources */,
+				B5A391A824E90F1000E7E8BD /* UIImage+Extensions.swift in Sources */,
-				B5A391AE24E9150F00E7E8BD /* Modern.ColorsDemo.UIKit.DetailViewController.swift in Sources */,
-				B5A391A224E8F01F00E7E8BD /* Modern.ColorsDemo.UIKit.ListViewController.swift in Sources */,
-				B5A391AA24E9104300E7E8BD /* Modern.ColorsDemo.UIKit.ItemCell.swift in Sources */,
-				B5A3917C24E6A76C00E7E8BD /* LazyView.swift in Sources */,
-				B5A3918324E7A21800E7E8BD /* Modern.TimeZonesDemo.swift in Sources */,
-				B5A3915324E6537F00E7E8BD /* Menu.ItemView.swift in Sources */,
 				B5A3911D24E5429200E7E8BD /* AppDelegate.swift in Sources */,
-				B5A391A024E8F00A00E7E8BD /* Modern.ColorsDemo.UIKit.swift in Sources */,
-				B5A3913424E6170500E7E8BD /* Menu.swift in Sources */,
-				B5A391B924E96F8500E7E8BD /* Modern.PokedexDemo.PokemonForm.swift in Sources */,
-				B5A3918624E7A54A00E7E8BD /* Modern.TimeZonesDemo.TimeZone.swift in Sources */,
-				B5A3915B24E685FE00E7E8BD /* Modern.swift in Sources */,
-				B5A391BB24E970A400E7E8BD /* Modern.PokedexDemo.PokemonType.swift in Sources */,
-				B5A3919624E7E4AC00E7E8BD /* Modern.ColorsDemo.SwiftUI.ItemView.swift in Sources */,
-				B5A3919A24E8207A00E7E8BD /* Modern.ColorsDemo.SwiftUI.DetailView.swift in Sources */,
-				B5A3916024E6925900E7E8BD /* Modern.PlacemarksDemo.MapView.swift in Sources */,
-				B5A391B124E96AF600E7E8BD /* Modern.PokedexDemo.swift in Sources */,
-				B5A3918A24E7AD1800E7E8BD /* Modern.TimeZonesDemo.ListView.swift in Sources */,
-				B5A3911F24E5429200E7E8BD /* SceneDelegate.swift in Sources */,
 				B5A3915924E685EC00E7E8BD /* Classic.swift in Sources */,
-				B5A3919824E7E67000E7E8BD /* Modern.ColorsDemo.Filter.swift in Sources */,
+				B5A3918024E787D900E7E8BD /* InstructionsView.swift in Sources */,
-				B5A391B624E96C5500E7E8BD /* Modern.PokedexDemo.Move.swift in Sources */,
+				B5A3917C24E6A76C00E7E8BD /* LazyView.swift in Sources */,
-				B5A3916224E697BA00E7E8BD /* Modern.PlacemarksDemo.MainView.swift in Sources */,
+				B5A3913424E6170500E7E8BD /* Menu.swift in Sources */,
-				B5A3917E24E7728400E7E8BD /* Modern.PlacemarksDemo.Geocoder.swift in Sources */,
+				B5A3915B24E685FE00E7E8BD /* Modern.swift in Sources */,
-				B5A391A424E8F04300E7E8BD /* Modern.ColorsDemo.UIKit.ListView.swift in Sources */,
+				B5A3911F24E5429200E7E8BD /* SceneDelegate.swift in Sources */,
-				B5A391AC24E9143B00E7E8BD /* Modern.ColorsDemo.UIKit.DetailView.swift in Sources */,
+				B5A3915324E6537F00E7E8BD /* Menu.ItemView.swift in Sources */,
-				B5A3919224E7E0C600E7E8BD /* Modern.ColorsDemo.Palette.swift in Sources */,
+				B5A3912124E5429200E7E8BD /* Menu.MainView.swift in Sources */,
-				B5A3919424E7E36700E7E8BD /* Modern.ColorsDemo.SwiftUI.ListView.swift in Sources */,
+				B531EFE724EA762D005F247D /* Menu.PlaceholderView.swift in Sources */,
 				B5A3918F24E7E06500E7E8BD /* Modern.ColorsDemo.swift in Sources */,
 				B5A3915E24E6922E00E7E8BD /* Modern.PlacemarksDemo.swift in Sources */,
-				B5A391B424E96C0A00E7E8BD /* Modern.PokedexDemo.PokemonSpecies.swift in Sources */,
+				B5A391B124E96AF600E7E8BD /* Modern.PokedexDemo.swift in Sources */,
-				B5A391A824E90F1000E7E8BD /* UIImage+Extensions.swift in Sources */,
+				B5A3918324E7A21800E7E8BD /* Modern.TimeZonesDemo.swift in Sources */,
-				B5A3918024E787D900E7E8BD /* InstructionsView.swift in Sources */,
+				B531EFEB24EB5ECD005F247D /* Modern.PokedexDemo.Service.swift in Sources */,
-				B5A3918C24E7B44B00E7E8BD /* Modern.TimeZonesDemo.ItemView.swift in Sources */,
+				B5A3919824E7E67000E7E8BD /* Modern.ColorsDemo.Filter.swift in Sources */,
-				B5A3919E24E8EEB600E7E8BD /* Modern.ColorsDemo.SwiftUI.swift in Sources */,
 				B5A391A624E8F4EA00E7E8BD /* Modern.ColorsDemo.MainView.swift in Sources */,
+				B5A3919224E7E0C600E7E8BD /* Modern.ColorsDemo.Palette.swift in Sources */,
+				B5A3919E24E8EEB600E7E8BD /* Modern.ColorsDemo.SwiftUI.swift in Sources */,
+				B5A391A024E8F00A00E7E8BD /* Modern.ColorsDemo.UIKit.swift in Sources */,
+				B5A3917E24E7728400E7E8BD /* Modern.PlacemarksDemo.Geocoder.swift in Sources */,
+				B5A3916224E697BA00E7E8BD /* Modern.PlacemarksDemo.MainView.swift in Sources */,
+				B5A3916024E6925900E7E8BD /* Modern.PlacemarksDemo.MapView.swift in Sources */,
 				B5A3916524E698C700E7E8BD /* Modern.PlacemarksDemo.Place.swift in Sources */,
 				B5A391BD24E977E500E7E8BD /* Modern.PokedexDemo.Ability.swift in Sources */,
-				B5A3912124E5429200E7E8BD /* Menu.MainView.swift in Sources */,
+				B5A391B624E96C5500E7E8BD /* Modern.PokedexDemo.Move.swift in Sources */,
+				B531EFE924EB5A53005F247D /* Modern.PokedexDemo.PokedexEntry.swift in Sources */,
+				B5A391B924E96F8500E7E8BD /* Modern.PokedexDemo.PokemonForm.swift in Sources */,
+				B5A391B424E96C0A00E7E8BD /* Modern.PokedexDemo.PokemonSpecies.swift in Sources */,
+				B5A391BB24E970A400E7E8BD /* Modern.PokedexDemo.PokemonType.swift in Sources */,
+				B5A3918C24E7B44B00E7E8BD /* Modern.TimeZonesDemo.ItemView.swift in Sources */,
+				B5A3918A24E7AD1800E7E8BD /* Modern.TimeZonesDemo.ListView.swift in Sources */,
+				B5A3918824E7A8F900E7E8BD /* Modern.TimeZonesDemo.MainView.swift in Sources */,
+				B531EFED24EB7453005F247D /* Modern.PokedexDemo.MainView.swift in Sources */,
+				B5A3918624E7A54A00E7E8BD /* Modern.TimeZonesDemo.TimeZone.swift in Sources */,
+				B5A3919A24E8207A00E7E8BD /* Modern.ColorsDemo.SwiftUI.DetailView.swift in Sources */,
+				B5A3919624E7E4AC00E7E8BD /* Modern.ColorsDemo.SwiftUI.ItemView.swift in Sources */,
+				B5A3919424E7E36700E7E8BD /* Modern.ColorsDemo.SwiftUI.ListView.swift in Sources */,
+				B5A391AC24E9143B00E7E8BD /* Modern.ColorsDemo.UIKit.DetailView.swift in Sources */,
+				B5A391AE24E9150F00E7E8BD /* Modern.ColorsDemo.UIKit.DetailViewController.swift in Sources */,
+				B5A391AA24E9104300E7E8BD /* Modern.ColorsDemo.UIKit.ItemCell.swift in Sources */,
+				B5A391A424E8F04300E7E8BD /* Modern.ColorsDemo.UIKit.ListView.swift in Sources */,
+				B5A391A224E8F01F00E7E8BD /* Modern.ColorsDemo.UIKit.ListViewController.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -533,7 +549,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				ASSETCATALOG_COMPILER_APPICON_NAME = appIcon;
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
 				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
@@ -607,7 +623,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				ASSETCATALOG_COMPILER_APPICON_NAME = appIcon;
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
 				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";

Demo/Resources/Base.lproj/LaunchScreen.storyboard

@@ -3,7 +3,6 @@
     <device id="retina6_1" orientation="portrait" appearance="light"/>
     <dependencies>
         <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="16087"/>
-        <capability name="Named colors" minToolsVersion="9.0"/>
         <capability name="Safe area layout guides" minToolsVersion="9.0"/>
         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
     </dependencies>
@@ -19,20 +18,24 @@
                             <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="  Copyright © 2020 John Rommel Estropia. All rights reserved." textAlignment="center" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" minimumFontSize="9" translatesAutoresizingMaskIntoConstraints="NO" id="Yn3-8H-uzI">
                                 <rect key="frame" x="20" y="827" width="374" height="21"/>
                                 <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <color key="textColor" name="foreground"/>
+                                <nil key="textColor"/>
                                 <nil key="highlightedColor"/>
                             </label>
-                            <imageView userInteractionEnabled="NO" contentMode="center" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="coreStoreIcon" translatesAutoresizingMaskIntoConstraints="NO" id="IrK-8p-pit">
+                            <imageView userInteractionEnabled="NO" contentMode="scaleAspectFit" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="CoreStoreIcon" translatesAutoresizingMaskIntoConstraints="NO" id="IrK-8p-pit">
-                                <rect key="frame" x="37" y="143.5" width="340" height="340"/>
+                                <rect key="frame" x="122" y="228.5" width="170" height="170"/>
+                                <constraints>
+                                    <constraint firstAttribute="width" secondItem="IrK-8p-pit" secondAttribute="height" multiplier="1:1" id="WaM-8F-33r"/>
+                                    <constraint firstAttribute="width" constant="170" id="dlo-1N-ikz"/>
+                                </constraints>
                             </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="8Vu-0U-3hd">
-                                <rect key="frame" x="20" y="503.5" width="374" height="57.5"/>
+                                <rect key="frame" x="20" y="418.5" width="374" height="57.5"/>
                                 <fontDescription key="fontDescription" name="HelveticaNeue-UltraLight" family="Helvetica Neue" pointSize="50"/>
-                                <color key="textColor" name="foreground"/>
+                                <nil key="textColor"/>
                                 <nil key="highlightedColor"/>
                             </label>
                         </subviews>
-                        <color key="backgroundColor" name="background"/>
+                        <color key="backgroundColor" systemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
                         <constraints>
                             <constraint firstItem="Yn3-8H-uzI" firstAttribute="leading" secondItem="Bp2-lt-3DL" secondAttribute="leading" constant="20" symbolic="YES" id="7Dq-xP-k2v"/>
                             <constraint firstItem="IrK-8p-pit" firstAttribute="centerY" secondItem="Bp2-lt-3DL" secondAttribute="centerY" multiplier="0.7" id="HUz-XL-l27"/>
@@ -52,12 +55,6 @@
         </scene>
     </scenes>
     <resources>
-        <image name="coreStoreIcon" width="340" height="340"/>
+        <image name="CoreStoreIcon" width="170" height="170"/>
-        <namedColor name="background">
-            <color red="0.15700000524520874" green="0.2199999988079071" blue="0.29399999976158142" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-        </namedColor>
-        <namedColor name="foreground">
-            <color red="0.90600001811981201" green="0.92500001192092896" blue="0.92900002002716064" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-        </namedColor>
     </resources>
 </document>

Demo/Sources/Demos/Modern/ColorsDemo/Modern.ColorsDemo.Palette.swift

@@ -132,7 +132,7 @@ extension Modern.ColorsDemo {
         
         private static func randomSaturation() -> Float {
             
-            return Float.random(in: 0.0 ... 1.0)
+            return Float.random(in: 0.4 ... 1.0)
         }
         
         private static func randomBrightness() -> Float {

Demo/Sources/Demos/Modern/PokedexDemo/Modern.PokedexDemo.MainView.swift

@@ -0,0 +1,74 @@
+//
+// Demo
+// Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
+
+import Combine
+import CoreStore
+import SwiftUI
+
+// MARK: - Modern.PokedexDemo
+
+extension Modern.PokedexDemo {
+
+    // MARK: - Modern.PokedexDemo.MainView
+
+    struct MainView: View {
+
+        /**
+         ⭐️ Sample 1: Setting a sectioned `ListPublisher` declared as an `@ObservedObject`
+         */
+        @ObservedObject
+        private var pokedexEntries: ListPublisher<Modern.PokedexDemo.PokedexEntry>
+
+
+        // MARK: Internal
+
+        init() {
+
+            self.pokedexEntries = Modern.PokedexDemo.pokedexEntries
+        }
+
+
+        // MARK: View
+
+        var body: some View {
+            List() {
+                ForEach(self.pokedexEntries.snapshot, id: \.self) { pokedexEntry in
+                    LazyView {
+                        Text(pokedexEntry.snapshot?.$id ?? "")
+                    }
+                }
+            }
+            .overlay(
+                InstructionsView(
+                    ("Random", "Sets random coordinate"),
+                    ("Tap", "Sets to tapped coordinate")
+                )
+                .padding(.leading, 10)
+                .padding(.bottom, 40),
+                alignment: .bottomLeading
+            )
+            .navigationBarTitle("Pokedex")
+        }
+
+
+        // MARK: Private
+
+        private let service: Modern.PokedexDemo.Service = .init()
+    }
+}
+
+
+#if DEBUG
+
+struct _Demo_Modern_PokedexDemo_MainView_Preview: PreviewProvider {
+
+    // MARK: PreviewProvider
+
+    static var previews: some View {
+
+        Modern.PokedexDemo.MainView()
+    }
+}
+
+#endif

Demo/Sources/Demos/Modern/PokedexDemo/Modern.PokedexDemo.PokedexEntry.swift

@@ -0,0 +1,59 @@
+//
+// Demo
+// Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
+
+import CoreStore
+
+// MARK: - Modern.PokedexDemo
+
+extension Modern.PokedexDemo {
+
+    // MARK: - Modern.PokedexDemo.PokedexEntry
+
+    final class PokedexEntry: CoreStoreObject, ImportableUniqueObject {
+
+        // MARK: Internal
+
+        @Field.Stored("id")
+        var id: String = ""
+
+        @Field.Stored("url")
+        var url: URL!
+
+        
+        @Field.Relationship("form")
+        var form: Modern.PokedexDemo.PokemonForm?
+
+
+        // MARK: ImportableObject
+
+        typealias ImportSource = Dictionary<String, Any>
+
+
+        // MARK: ImportableUniqueObject
+
+        static let uniqueIDKeyPath: String = String(keyPath: \Modern.PokedexDemo.PokedexEntry.$id)
+
+        var uniqueIDValue: String {
+
+            get {
+
+                return self.id
+            }
+            set {
+
+                self.id = newValue
+            }
+        }
+
+        static func uniqueID(from source: ImportSource, in transaction: BaseDataTransaction) throws -> String? {
+
+            return try Modern.PokedexDemo.Service.parseJSON(source["name"])
+        }
+
+        func update(from source: ImportSource, in transaction: BaseDataTransaction) throws {
+
+            self.url = URL(string: try Modern.PokedexDemo.Service.parseJSON(source["url"]))
+        }
+    }
+}

Demo/Sources/Demos/Modern/PokedexDemo/Modern.PokedexDemo.PokemonForm.swift

@@ -19,15 +19,18 @@ extension Modern.PokedexDemo {
         
         @Field.Stored("name")
         var name: String = ""
+
+        @Field.Stored("weight")
+        var weight: Int = 0
         
         @Field.Stored("pokemonType1")
         var pokemonType1: Modern.PokedexDemo.PokemonType = .normal
         
         @Field.Stored("pokemonType2")
         var pokemonType2: Modern.PokedexDemo.PokemonType?
-        
+
-        @Field.Relationship("species")
+        @Field.Stored("spriteURL")
-        var species: Modern.PokedexDemo.PokemonSpecies?
+        var spriteURL: URL?
         
         
         @Field.Stored("statHitPoints")
@@ -49,23 +52,17 @@ extension Modern.PokedexDemo {
         var statSpeed: Int = 0
         
         
-        @Field.Stored("spriteFrontURL")
-        var spriteFrontURL: URL?
-        
-        @Field.Stored("spriteBackURL")
-        var spriteBackURL: URL?
-        
-        @Field.Stored("spriteShinyFrontURL")
-        var spriteShinyFrontURL: URL?
-        
-        @Field.Stored("spriteShinyBackURL")
-        var spriteShinyBackURL: URL?
-        
-        
         @Field.Relationship("abilities", inverse: \.$learners)
         var abilities: Set<Modern.PokedexDemo.Ability>
         
         @Field.Relationship("moves", inverse: \.$learners)
         var moves: Set<Modern.PokedexDemo.Move>
+
+
+        @Field.Relationship("pokedexEntry", inverse: \.$form)
+        var pokedexEntry: Modern.PokedexDemo.PokedexEntry?
+
+        @Field.Relationship("species", inverse: \.$forms)
+        var species: Modern.PokedexDemo.PokemonSpecies?
     }
 }

Demo/Sources/Demos/Modern/PokedexDemo/Modern.PokedexDemo.PokemonSpecies.swift

@@ -22,8 +22,9 @@ extension Modern.PokedexDemo {
         
         @Field.Stored("weight")
         var weight: Int = 0
+
         
-        @Field.Relationship("forms", inverse: \.$species)
+        @Field.Relationship("forms")
         var forms: Set<Modern.PokedexDemo.PokemonForm>
     }
 }

Demo/Sources/Demos/Modern/PokedexDemo/Modern.PokedexDemo.Service.swift

@@ -0,0 +1,169 @@
+//
+// Demo
+// Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
+
+import Foundation
+import Combine
+import CoreStore
+
+
+// MARK: - Modern.PokedexDemo
+
+extension Modern.PokedexDemo {
+
+    // MARK: - Modern.PokedexDemo.Service
+
+    final class Service {
+
+        // MARK: Internal
+
+        @Published
+        var isLoading: Bool = true
+
+        @Published
+        var lastError: (error: Modern.PokedexDemo.Service.Error, retry: () -> Void)?
+
+        init() {
+
+            self.fetchPokedexEntries()
+        }
+
+        static func parseJSON<Output>(_ json: Any?) throws -> Output {
+
+            switch json {
+
+            case let json as Output:
+                return json
+
+            case let any:
+                throw Modern.PokedexDemo.Service.Error.parseError(
+                    expected: Output.self,
+                    actual: type(of: any)
+                )
+            }
+        }
+
+        func fetchPokedexEntries() {
+
+            self.cancellable["pokedexEntries"] = self.pokedexEntries
+                .handleEvents(
+                    receiveSubscription: { [weak self] _ in
+
+                        print("Fetching Pokedex Entries")
+                        guard let self = self else {
+
+                            return
+                        }
+                        self.lastError = nil
+                        self.isLoading = true
+                    }
+                )
+                .sink(
+                    receiveCompletion: { [weak self] completion in
+
+                        print("Result (Fetching Pokedex Entries): \(completion)")
+                        guard let self = self else {
+
+                            return
+                        }
+                        self.isLoading = false
+                        switch completion {
+
+                        case .finished:
+                            self.lastError = nil
+
+                        case .failure(let error):
+                            self.lastError = (
+                                error: error,
+                                retry: { [weak self] in
+
+                                    self?.fetchPokedexEntries()
+                                }
+                            )
+                        }
+                    },
+                    receiveValue: {}
+                )
+        }
+
+        func fetchPokemonForm(for pokedexEntry: ObjectSnapshot<Modern.PokedexDemo.PokedexEntry>) {
+
+            self.cancellable["pokedexEntry.\(pokedexEntry.$id)"] = URLSession.shared
+                .dataTaskPublisher(for: pokedexEntry.$url!)
+                .receive(on: DispatchQueue.main)
+                .eraseToAnyPublisher()
+                .sink(
+                    receiveCompletion: { _ in },
+                    receiveValue: { _ in
+
+                    }
+                )
+        }
+
+
+        // MARK: Private
+
+        private var cancellable: Dictionary<String, AnyCancellable> = [:]
+
+        private lazy var pokedexEntries: AnyPublisher<Void, Modern.PokedexDemo.Service.Error> = URLSession.shared
+            .dataTaskPublisher(
+                for: URL(string: "https://pokeapi.co/api/v2/pokemon?limit=10000&offset=0")!
+            )
+            .mapError({ .networkError($0) })
+            .flatMap(
+                { output in
+
+                    return Future<Void, Modern.PokedexDemo.Service.Error> { promise in
+
+                        do {
+
+                            let json: Dictionary<String, Any> = try Self.parseJSON(
+                                try JSONSerialization.jsonObject(with: output.data, options: [])
+                            )
+                            let results: [Dictionary<String, Any>] = try Self.parseJSON(
+                                json["results"]
+                            )
+                            Modern.PokedexDemo.dataStack.perform(
+                                asynchronous: { transaction -> Void in
+
+                                    _ = try transaction.importUniqueObjects(
+                                        Into<Modern.PokedexDemo.PokedexEntry>(),
+                                        sourceArray: results
+                                    )
+                                },
+                                success: { result in
+
+                                    promise(.success(result))
+                                },
+                                failure: { error in
+
+                                    promise(.failure(.saveError(error)))
+                                }
+                            )
+                        }
+                        catch let error as Modern.PokedexDemo.Service.Error {
+
+                            promise(.failure(error))
+                        }
+                        catch {
+
+                            promise(.failure(.otherError(error)))
+                        }
+                    }
+                }
+            )
+            .receive(on: DispatchQueue.main)
+            .eraseToAnyPublisher()
+
+
+        // MARK: - Modern.PokedexDemo.Service.Error
+
+        enum Error: Swift.Error {
+
+            case networkError(URLError)
+            case parseError(expected: Any.Type, actual: Any.Type)
+            case saveError(CoreStoreError)
+            case otherError(Swift.Error)
+        }
+    }
+}

Demo/Sources/Demos/Modern/PokedexDemo/Modern.PokedexDemo.swift

@@ -23,10 +23,11 @@ extension Modern {
                 CoreStoreSchema(
                     modelVersion: "V1",
                     entities: [
-                        Entity<Modern.ColorsDemo.Palette>("Palette")
+                        Entity<Modern.PokedexDemo.PokedexEntry>("PokedexEntry"),
-                    ],
+                        Entity<Modern.PokedexDemo.PokemonSpecies>("PokemonSpecies"),
-                    versionLock: [
+                        Entity<Modern.PokedexDemo.PokemonForm>("PokemonForm"),
-                        "Palette": [0xbaf4eaee9353176a, 0xdd6ca918cc2b0c38, 0xd04fad8882d7cc34, 0x3e90ca38c091503f]
+                        Entity<Modern.PokedexDemo.Move>("Move"),
+                        Entity<Modern.PokedexDemo.Ability>("Ability")
                     ]
                 )
             )
@@ -36,31 +37,16 @@ extension Modern {
              */
             try! dataStack.addStorageAndWait(
                 SQLiteStore(
-                    fileName: "Modern.ColorsDemo.sqlite",
+                    fileName: "Modern.PokedexDemo.sqlite",
                     localStorageOptions: .recreateStoreOnModelMismatch
                 )
             )
             return dataStack
         }()
         
-        static let palettesPublisher: ListPublisher<Modern.ColorsDemo.Palette> = Modern.ColorsDemo.dataStack.publishList(
+        static let pokedexEntries: ListPublisher<Modern.PokedexDemo.PokedexEntry> = Modern.PokedexDemo.dataStack.publishList(
-            From<Modern.ColorsDemo.Palette>()
+            From<Modern.PokedexDemo.PokedexEntry>()
-                .sectionBy(\.$colorName)
+                .orderBy(.ascending(\.$id))
-                .where(Modern.ColorsDemo.filter.whereClause())
-                .orderBy(.ascending(\.$hue))
         )
-        
-        static var filter: Modern.ColorsDemo.Filter = .all {
-            
-            didSet {
-                
-                try! Modern.ColorsDemo.palettesPublisher.refetch(
-                    From<Modern.ColorsDemo.Palette>()
-                        .sectionBy(\.$colorName)
-                        .where(self.filter.whereClause())
-                        .orderBy(.ascending(\.$hue))
-                )
-            }
-        }
     }
 }

Demo/Sources/Helpers/Menu/Menu.MainView.swift

@@ -72,7 +72,9 @@ extension Menu {
                         Menu.ItemView(
                             title: "Pokedex API",
                             subtitle: "Importing JSON data from external source",
-                            destination: { EmptyView() }
+                            destination: {
+                                Modern.PokedexDemo.MainView()
+                            }
                         )
                     }
                     Section(header: Text("Classic (NSManagedObject subclasses)")) {
@@ -127,23 +129,11 @@ extension Menu {
                 }
                 .listStyle(GroupedListStyle())
                 .navigationBarTitle("CoreStore Demos")
-                Menu.DetailView()
+                Menu.PlaceholderView()
             }
             .navigationViewStyle(DoubleColumnNavigationViewStyle())
         }
     }
-
-    fileprivate struct DetailView: View {
-        
-        var selectedDate: Date?
-
-        var body: some View {
-            Group {
-                Text("Detail view content goes here")
-            }
-            .navigationBarTitle(Text("Detail"))
-        }
-    }
 }
 
 #if DEBUG

Demo/Sources/Helpers/Menu/Menu.PlaceholderView.swift

@@ -0,0 +1,44 @@
+//
+// Demo
+// Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
+
+import Combine
+import CoreStore
+import SwiftUI
+
+// MARK: - Menu
+
+extension Menu {
+
+    // MARK: - Menu.PlaceholderView
+
+    struct PlaceholderView: UIViewControllerRepresentable {
+
+        // MARK: UIViewControllerRepresentable
+
+        typealias UIViewControllerType = UIViewController
+
+        func makeUIViewController(context: Self.Context) -> UIViewControllerType {
+
+            return UIStoryboard(name: "LaunchScreen", bundle: nil).instantiateInitialViewController()!
+        }
+
+        func updateUIViewController(_ uiViewController: UIViewControllerType, context: Self.Context) {}
+
+        static func dismantleUIViewController(_ uiViewController: UIViewControllerType, coordinator: Void) {}
+    }
+}
+
+#if DEBUG
+
+struct _Demo_Menu_PlaceholderView_Preview: PreviewProvider {
+
+    // MARK: PreviewProvider
+
+    static var previews: some View {
+
+        return Menu.PlaceholderView()
+    }
+}
+
+#endif

Sources/From+Querying.swift

@@ -368,6 +368,18 @@ extension From where O: CoreStoreObject {
         
         return self.sectionBy(O.meta[keyPath: sectionKeyPath].keyPath, { $0 })
     }
+
+    /**
+     Creates a `SectionMonitorChainBuilder` with the key path to use to group `ListMonitor` objects into sections
+
+     - parameter sectionKeyPath: the `KeyPath` to use to group the objects into sections
+     - returns: a `SectionMonitorChainBuilder` that is sectioned by the specified key path
+     */
+    @available(macOS 10.12, *)
+    public func sectionBy<T>(_ sectionKeyPath: KeyPath<O, FieldContainer<O>.Coded<T>>) -> SectionMonitorChainBuilder<O> {
+
+        return self.sectionBy(O.meta[keyPath: sectionKeyPath].keyPath, { $0 })
+    }
     
     /**
      Creates a `SectionMonitorChainBuilder` with the key path to use to group `ListMonitor` objects into sections
@@ -416,6 +428,48 @@ extension From where O: CoreStoreObject {
         
         return self.sectionBy(O.meta[keyPath: sectionKeyPath].keyPath, { $0 })
     }
+
+    /**
+     Creates a `SectionMonitorChainBuilder` with the key path to use to group `ListMonitor` objects into sections, and a closure to transform the value for the key path to an appropriate section name
+
+     - Important: Some utilities (such as `ListMonitor`s) may keep `SectionBy`s in memory and may thus introduce retain cycles if reference captures are not handled properly.
+     - parameter sectionKeyPath: the `KeyPath` to use to group the objects into sections
+     - parameter sectionIndexTransformer: a closure to transform the value for the key path to an appropriate section name
+     - returns: a `SectionMonitorChainBuilder` that is sectioned by the specified key path
+     */
+    @available(macOS 10.12, *)
+    public func sectionBy<T>(_ sectionKeyPath: KeyPath<O, FieldContainer<O>.Stored<T>>, _ sectionIndexTransformer: @escaping (_ sectionName: String?) -> String?) -> SectionMonitorChainBuilder<O> {
+
+        return self.sectionBy(O.meta[keyPath: sectionKeyPath].keyPath, sectionIndexTransformer)
+    }
+
+    /**
+     Creates a `SectionMonitorChainBuilder` with the key path to use to group `ListMonitor` objects into sections, and a closure to transform the value for the key path to an appropriate section name
+
+     - Important: Some utilities (such as `ListMonitor`s) may keep `SectionBy`s in memory and may thus introduce retain cycles if reference captures are not handled properly.
+     - parameter sectionKeyPath: the `KeyPath` to use to group the objects into sections
+     - parameter sectionIndexTransformer: a closure to transform the value for the key path to an appropriate section name
+     - returns: a `SectionMonitorChainBuilder` that is sectioned by the specified key path
+     */
+    @available(macOS 10.12, *)
+    public func sectionBy<T>(_ sectionKeyPath: KeyPath<O, FieldContainer<O>.Virtual<T>>, _ sectionIndexTransformer: @escaping (_ sectionName: String?) -> String?) -> SectionMonitorChainBuilder<O> {
+
+        return self.sectionBy(O.meta[keyPath: sectionKeyPath].keyPath, sectionIndexTransformer)
+    }
+
+    /**
+     Creates a `SectionMonitorChainBuilder` with the key path to use to group `ListMonitor` objects into sections, and a closure to transform the value for the key path to an appropriate section name
+
+     - Important: Some utilities (such as `ListMonitor`s) may keep `SectionBy`s in memory and may thus introduce retain cycles if reference captures are not handled properly.
+     - parameter sectionKeyPath: the `KeyPath` to use to group the objects into sections
+     - parameter sectionIndexTransformer: a closure to transform the value for the key path to an appropriate section name
+     - returns: a `SectionMonitorChainBuilder` that is sectioned by the specified key path
+     */
+    @available(macOS 10.12, *)
+    public func sectionBy<T>(_ sectionKeyPath: KeyPath<O, FieldContainer<O>.Coded<T>>, _ sectionIndexTransformer: @escaping (_ sectionName: String?) -> String?) -> SectionMonitorChainBuilder<O> {
+
+        return self.sectionBy(O.meta[keyPath: sectionKeyPath].keyPath, sectionIndexTransformer)
+    }
     
     /**
      Creates a `SectionMonitorChainBuilder` with the key path to use to group `ListMonitor` objects into sections, and a closure to transform the value for the key path to an appropriate section name

Sources/SectionBy.swift

@@ -106,6 +106,36 @@ extension SectionBy where O: NSManagedObject {
 
 @available(macOS 10.12, *)
 extension SectionBy where O: CoreStoreObject {
+
+    /**
+     Initializes a `SectionBy` clause with the key path to use to group `ListMonitor` objects into sections
+
+     - parameter sectionKeyPath: the key path to use to group the objects into sections
+     */
+    public init<T>(_ sectionKeyPath: KeyPath<O, FieldContainer<O>.Stored<T>>) {
+
+        self.init(sectionKeyPath, { $0 })
+    }
+
+    /**
+     Initializes a `SectionBy` clause with the key path to use to group `ListMonitor` objects into sections
+
+     - parameter sectionKeyPath: the key path to use to group the objects into sections
+     */
+    public init<T>(_ sectionKeyPath: KeyPath<O, FieldContainer<O>.Virtual<T>>) {
+
+        self.init(sectionKeyPath, { $0 })
+    }
+
+    /**
+     Initializes a `SectionBy` clause with the key path to use to group `ListMonitor` objects into sections
+
+     - parameter sectionKeyPath: the key path to use to group the objects into sections
+     */
+    public init<T>(_ sectionKeyPath: KeyPath<O, FieldContainer<O>.Coded<T>>) {
+
+        self.init(sectionKeyPath, { $0 })
+    }
     
     /**
      Initializes a `SectionBy` clause with the key path to use to group `ListMonitor` objects into sections
@@ -158,6 +188,42 @@ extension SectionBy where O: CoreStoreObject {
         
         self.init(O.meta[keyPath: sectionKeyPath].keyPath, sectionIndexTransformer)
     }
+
+    /**
+     Initializes a `SectionBy` clause with the key path to use to group `ListMonitor` objects into sections, and a closure to transform the value for the key path to an appropriate section name
+
+     - Important: Some utilities (such as `ListMonitor`s) may keep `SectionBy`s in memory and may thus introduce retain cycles if reference captures are not handled properly.
+     - parameter sectionKeyPath: the key path to use to group the objects into sections
+     - parameter sectionIndexTransformer: a closure to transform the value for the key path to an appropriate section name
+     */
+    public init<T>(_ sectionKeyPath: KeyPath<O, FieldContainer<O>.Stored<T>>, _ sectionIndexTransformer: @escaping (_ sectionName: String?) -> String?) {
+
+        self.init(O.meta[keyPath: sectionKeyPath].keyPath, sectionIndexTransformer)
+    }
+
+    /**
+     Initializes a `SectionBy` clause with the key path to use to group `ListMonitor` objects into sections, and a closure to transform the value for the key path to an appropriate section name
+
+     - Important: Some utilities (such as `ListMonitor`s) may keep `SectionBy`s in memory and may thus introduce retain cycles if reference captures are not handled properly.
+     - parameter sectionKeyPath: the key path to use to group the objects into sections
+     - parameter sectionIndexTransformer: a closure to transform the value for the key path to an appropriate section name
+     */
+    public init<T>(_ sectionKeyPath: KeyPath<O, FieldContainer<O>.Virtual<T>>, _ sectionIndexTransformer: @escaping (_ sectionName: String?) -> String?) {
+
+        self.init(O.meta[keyPath: sectionKeyPath].keyPath, sectionIndexTransformer)
+    }
+
+    /**
+     Initializes a `SectionBy` clause with the key path to use to group `ListMonitor` objects into sections, and a closure to transform the value for the key path to an appropriate section name
+
+     - Important: Some utilities (such as `ListMonitor`s) may keep `SectionBy`s in memory and may thus introduce retain cycles if reference captures are not handled properly.
+     - parameter sectionKeyPath: the key path to use to group the objects into sections
+     - parameter sectionIndexTransformer: a closure to transform the value for the key path to an appropriate section name
+     */
+    public init<T>(_ sectionKeyPath: KeyPath<O, FieldContainer<O>.Coded<T>>, _ sectionIndexTransformer: @escaping (_ sectionName: String?) -> String?) {
+
+        self.init(O.meta[keyPath: sectionKeyPath].keyPath, sectionIndexTransformer)
+    }
     
     /**
      Initializes a `SectionBy` clause with the key path to use to group `ListMonitor` objects into sections, and a closure to transform the value for the key path to an appropriate section name