0
私はCoreDataStack
をappDelegate
に更新しています。しかし、やっていると、私は元のスタックと同じデータベースを使用していない/失っているようです。データベースは永続ストアにあり、スタックを更新するときにsqlite URLを変更しませんでした。CoreDataStackの更新時に同じデータベースを使用する方法
self.storeDirectoryURL.URLByAppendingPathComponent("SingleViewCoreData.sqlite")
ここに元のスタックがあります。私が間違っているつもりです
// MARK: - Core Data stack
lazy var applicationDocumentsDirectory: NSURL = {
let urls = NSFileManager.defaultManager().URLsForDirectory(.DocumentDirectory, inDomains: .UserDomainMask)
return urls[urls.count-1]
}()
lazy var managedObjectModel: NSManagedObjectModel = {
// The managed object model for the application. This property is not optional. It is a fatal error for the application not to be able to find and load its model.
let modelURL = NSBundle.mainBundle().URLForResource("APPNAME", withExtension: "momd")!
return NSManagedObjectModel(contentsOfURL: modelURL)!
}()
lazy var persistentStoreCoordinator: NSPersistentStoreCoordinator = {
// Create the coordinator and store
let coordinator = NSPersistentStoreCoordinator(managedObjectModel: self.managedObjectModel)
let url = self.applicationDocumentsDirectory.URLByAppendingPathComponent("SingleViewCoreData.sqlite")
var failureReason = "There was an error creating or loading the application's saved data."
do {
try coordinator.addPersistentStoreWithType(NSSQLiteStoreType, configuration: nil, URL: url, options: nil)
} catch {
// Report any error we got.
var dict = [String: AnyObject]()
dict[NSLocalizedDescriptionKey] = "Failed to initialize the application's saved data"
dict[NSLocalizedFailureReasonErrorKey] = failureReason
dict[NSUnderlyingErrorKey] = error as! NSError
let wrappedError = NSError(domain: "YOUR_ERROR_DOMAIN", code: 9999, userInfo: dict)
// Replace this with code to handle the error appropriately.
// abort() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.
NSLog("Unresolved error \(wrappedError), \(wrappedError.userInfo)")
abort()
}
return coordinator
}()
lazy var managedObjectContext: NSManagedObjectContext = {
// Returns the managed object context for the application (which is already bound to the persistent store coordinator for the application.) This property is optional since there are legitimate error conditions that could cause the creation of the context to fail.
let coordinator = self.persistentStoreCoordinator
var managedObjectContext = NSManagedObjectContext(concurrencyType: .MainQueueConcurrencyType)
managedObjectContext.persistentStoreCoordinator = coordinator
return managedObjectContext
}()
新CoreDataStack
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
self.setupCoreData()
try! managedObjectContext.save()
// Setup Ensemble
let modelURL = NSBundle.mainBundle().URLForResource("APPNAME", withExtension: "momd")
cloudFileSystem = CDEICloudFileSystem(ubiquityContainerIdentifier: nil)
ensemble = CDEPersistentStoreEnsemble(ensembleIdentifier: "APPNAME", persistentStoreURL: storeURL, managedObjectModelURL: modelURL!, cloudFileSystem: cloudFileSystem)
ensemble.delegate = self
}
// MARK: - Core Data stack
var managedObjectContext: NSManagedObjectContext!
var storeDirectoryURL: NSURL {
return try! NSFileManager.defaultManager().URLForDirectory(.ApplicationSupportDirectory, inDomain: .UserDomainMask, appropriateForURL: nil, create: true)
}
var storeURL: NSURL {
return self.storeDirectoryURL.URLByAppendingPathComponent("SingleViewCoreData.sqlite")
}
func setupCoreData() {
let modelURL = NSBundle.mainBundle().URLForResource("APPNAME", withExtension: "momd")
let model = NSManagedObjectModel(contentsOfURL: modelURL!)
try! NSFileManager.defaultManager().createDirectoryAtURL(self.storeDirectoryURL, withIntermediateDirectories: true, attributes: nil)
let coordinator = NSPersistentStoreCoordinator(managedObjectModel: model!)
let options = [NSMigratePersistentStoresAutomaticallyOption: true, NSInferMappingModelAutomaticallyOption: true]
try! coordinator.addPersistentStoreWithType(NSSQLiteStoreType, configuration: nil, URL: self.storeURL, options: options)
managedObjectContext = NSManagedObjectContext(concurrencyType: .MainQueueConcurrencyType)
managedObjectContext.persistentStoreCoordinator = coordinator
managedObjectContext.mergePolicy = NSMergeByPropertyObjectTrumpMergePolicy
}
?私は、元のスタックからデータベースを使用する必要があります。答えは最も明白である、私はこのすべてに新しいです。