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Code Issues 95 Packages Projects Releases 10 Wiki Activity

force true lightweight migration

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This commit is contained in:
John Rommel Estropia
2017-11-10 02:48:37 +09:00
parent e314db8f56
commit d90e8d1303
2 changed files with 31 additions and 13 deletions
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29
Sources/DataStack+Migration.swift
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@@ -575,6 +575,7 @@ public extension DataStack {
sourceModel: sourceModel,
destinationModel: destinationModel,
mappingModel: mappingModel,
migrationType: migrationType,
progress: childProgress
)
}
@@ -679,10 +680,34 @@ public extension DataStack {
return nil
}
private func startMigrationForStorage<T: LocalStorage>(_ storage: T, sourceModel: NSManagedObjectModel, destinationModel: NSManagedObjectModel, mappingModel: NSMappingModel, progress: Progress) throws {
private func startMigrationForStorage<T: LocalStorage>(_ storage: T, sourceModel: NSManagedObjectModel, destinationModel: NSManagedObjectModel, mappingModel: NSMappingModel, migrationType: MigrationType, progress: Progress) throws {
let fileURL = storage.fileURL
if case .lightweight = migrationType {
do {
_ = try withExtendedLifetime(NSPersistentStoreCoordinator(managedObjectModel: destinationModel)) { (coordinator: NSPersistentStoreCoordinator) in
try coordinator.addPersistentStoreSynchronously(
type(of: storage).storeType,
configuration: storage.configuration,
URL: fileURL,
options: storage.dictionary(
forOptions: storage.localStorageOptions.union(.allowSynchronousLightweightMigration)
)
)
}
_ = try? storage.cs_finalizeStorageAndWait(soureModelHint: destinationModel)
progress.completedUnitCount = progress.totalUnitCount
return
}
catch {
// try manual migration
}
}
let temporaryDirectoryURL = URL(fileURLWithPath: NSTemporaryDirectory(), isDirectory: true)
.appendingPathComponent(Bundle.main.bundleIdentifier ?? "com.CoreStore.DataStack")
.appendingPathComponent(ProcessInfo().globallyUniqueString)