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Code Issues 95 Packages Projects Releases 10 Wiki Activity

reversible migrations

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This commit is contained in:
John Estropia
2015-07-07 19:38:46 +09:00
parent 5b85b0749e
commit 5f04f4c496
5 changed files with 130 additions and 23 deletions
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48
CoreStore/Migrating/DataStack+Migration.swift
View File

@@ -446,6 +446,18 @@ public extension DataStack {
private func startMigrationForSQLiteStore(fileURL fileURL: NSURL, sourceModel: NSManagedObjectModel, destinationModel: NSManagedObjectModel, mappingModel: NSMappingModel) 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 = NSMigrationManager(
sourceModel: sourceModel,
destinationModel: destinationModel
@@ -475,21 +487,18 @@ public extension DataStack {
withIntermediateDirectories: true,
attributes: nil
)
let temporaryFileURL = temporaryDirectoryURL.URLByAppendingPathComponent(fileURL.lastPathComponent!, isDirectory: false)
do {
try migrationManager.migrateStoreFromURL(
fileURL,
type: NSSQLiteStoreType,
options: [
NSSQLitePragmasOption: ["WAL": "journal_mode"]
],
options: nil,
withMappingModel: mappingModel,
toDestinationURL: temporaryDirectoryURL.URLByAppendingPathComponent(fileURL.lastPathComponent!, isDirectory: false),
toDestinationURL: temporaryFileURL,
destinationType: NSSQLiteStoreType,
destinationOptions: [
NSSQLitePragmasOption: ["WAL": "journal_mode"],
NSSQLiteManualVacuumOption: true
]
destinationOptions: nil
)
}
catch {
@@ -515,20 +524,19 @@ public extension DataStack {
do {
let originalDirectoryURL = fileURL.URLByDeletingLastPathComponent!
for temporaryFileURL in try fileManager.contentsOfDirectoryAtURL(temporaryDirectoryURL, includingPropertiesForKeys: nil, options: .SkipsSubdirectoryDescendants) {
try fileManager.replaceItemAtURL(
fileURL,
withItemAtURL: temporaryFileURL,
backupItemName: nil,
options: [],
resultingItemURL: nil
)
do {
try fileManager.replaceItemAtURL(
originalDirectoryURL.URLByAppendingPathComponent(
temporaryFileURL.lastPathComponent!,
isDirectory: false
),
withItemAtURL: temporaryFileURL,
backupItemName: nil,
options: [],
resultingItemURL: nil
)
try fileManager.removeItemAtPath(fileURL.path! + "-shm")
}
catch _ { }
}
catch {

16
CoreStore/Setting Up/DataStack.swift
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@@ -199,7 +199,7 @@ public final class DataStack {
configuration: configuration,
URL: fileURL,
options: [
NSSQLitePragmasOption: ["WAL": "journal_mode"],
NSSQLitePragmasOption: ["journal_mode": "WAL"],
NSInferMappingModelAutomaticallyOption: true,
NSMigratePersistentStoresAutomaticallyOption: automigrating
]
@@ -254,7 +254,7 @@ public final class DataStack {
configuration: configuration,
URL: fileURL,
options: [
NSSQLitePragmasOption: ["WAL": "journal_mode"],
NSSQLitePragmasOption: ["journal_mode": "WAL"],
NSInferMappingModelAutomaticallyOption: true,
NSMigratePersistentStoresAutomaticallyOption: automigrating
]
@@ -376,4 +376,16 @@ public final class DataStack {
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 _ { }
}
}
}

4
CoreStoreDemo/CoreStoreDemo.xcodeproj/project.pbxproj
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@@ -11,6 +11,7 @@
B503FAE01AFDC71700F90881 /* ObjectObserverDemoViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = B503FADC1AFDC71700F90881 /* ObjectObserverDemoViewController.swift */; };
B503FAE11AFDC71700F90881 /* Palette.swift in Sources */ = {isa = PBXBuildFile; fileRef = B503FADD1AFDC71700F90881 /* Palette.swift */; };
B503FAE21AFDC71700F90881 /* PaletteTableViewCell.swift in Sources */ = {isa = PBXBuildFile; fileRef = B503FADE1AFDC71700F90881 /* PaletteTableViewCell.swift */; };
B50D67911B4BCFED00124277 /* OrganismV3ToV2.xcmappingmodel in Sources */ = {isa = PBXBuildFile; fileRef = B50D67901B4BCFED00124277 /* OrganismV3ToV2.xcmappingmodel */; };
B52977D91B120B80003D50A5 /* ObserversViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = B52977D81B120B80003D50A5 /* ObserversViewController.swift */; };
B52977DD1B120F3B003D50A5 /* TransactionsDemoViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = B52977DC1B120F3B003D50A5 /* TransactionsDemoViewController.swift */; };
B52977DF1B120F83003D50A5 /* MapKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = B52977DE1B120F83003D50A5 /* MapKit.framework */; };
@@ -96,6 +97,7 @@
B503FADC1AFDC71700F90881 /* ObjectObserverDemoViewController.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = ObjectObserverDemoViewController.swift; sourceTree = "<group>"; };
B503FADD1AFDC71700F90881 /* Palette.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = Palette.swift; sourceTree = "<group>"; };
B503FADE1AFDC71700F90881 /* PaletteTableViewCell.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = PaletteTableViewCell.swift; sourceTree = "<group>"; };
B50D67901B4BCFED00124277 /* OrganismV3ToV2.xcmappingmodel */ = {isa = PBXFileReference; lastKnownFileType = wrapper.xcmappingmodel; name = OrganismV3ToV2.xcmappingmodel; path = "CoreStoreDemo/MIgrations Demo/OrganismV3ToV2.xcmappingmodel"; sourceTree = SOURCE_ROOT; };
B52977D81B120B80003D50A5 /* ObserversViewController.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = ObserversViewController.swift; sourceTree = "<group>"; };
B52977DC1B120F3B003D50A5 /* TransactionsDemoViewController.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = TransactionsDemoViewController.swift; sourceTree = "<group>"; };
B52977DE1B120F83003D50A5 /* MapKit.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = MapKit.framework; path = System/Library/Frameworks/MapKit.framework; sourceTree = SDKROOT; };
@@ -265,6 +267,7 @@
B5EE258B1B36E40D0000406B /* MigrationsDemoViewController.swift */,
B5F45A601B4AE5A700831F2F /* OrganismV2ToV3.xcmappingmodel */,
B560070E1B3EC90F00A9A8F9 /* OrganismV2ToV3MigrationPolicy.swift */,
B50D67901B4BCFED00124277 /* OrganismV3ToV2.xcmappingmodel */,
);
path = "Migrations Demo";
sourceTree = "<group>";
@@ -394,6 +397,7 @@
B5F45A611B4AE5A700831F2F /* OrganismV2ToV3.xcmappingmodel in Sources */,
B503FAE11AFDC71700F90881 /* Palette.swift in Sources */,
B503FAE21AFDC71700F90881 /* PaletteTableViewCell.swift in Sources */,
B50D67911B4BCFED00124277 /* OrganismV3ToV2.xcmappingmodel in Sources */,
B560070F1B3EC90F00A9A8F9 /* OrganismV2ToV3MigrationPolicy.swift in Sources */,
B503FADF1AFDC71700F90881 /* ListObserverDemoViewController.swift in Sources */,
B54AAD4F1AF4D26E00848AE0 /* AppDelegate.swift in Sources */,

2
CoreStoreDemo/CoreStoreDemo/MIgrations Demo/MigrationsDemoViewController.swift
View File

@@ -170,7 +170,7 @@ class MigrationsDemoViewController: UITableViewController {
let navigationItem = self.navigationItem
navigationItem.leftBarButtonItem?.enabled = enabled
navigationItem.rightBarButtonItem?.enabled = enabled
navigationItem.backBarButtonItem?.enabled = enabled
navigationItem.hidesBackButton = !enabled
if let tableView = self.tableView {

83
CoreStoreDemo/CoreStoreDemo/MIgrations Demo/OrganismV3ToV2.xcmappingmodel/xcmapping.xml Normal file
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