I am converting existing app from NSPersistentContainer to NSPersistentCloudKitContainer AppDelegate code:
lazy var persistentContainer: NSPersistentCloudKitContainer = {
let container = NSPersistentCloudKitContainer(name:"GridModel")
// enable history tracking and remote notifications
guard let publicStoreDescription = container.persistentStoreDescriptions.first else {
fatalError("###\(#function): failed to retrieve a persistent store description.")
}
// public
let publicStoreUrl = publicStoreDescription.url!.deletingLastPathComponent().appendingPathComponent("GridModel-public.sqlite")
publicStoreDescription.setOption(true as NSNumber, forKey: NSPersistentHistoryTrackingKey)
publicStoreDescription.setOption(true as NSNumber, forKey: NSPersistentStoreRemoteChangeNotificationPostOptionKey)
let containerIdentifier = publicStoreDescription.cloudKitContainerOptions!.containerIdentifier
let publicStoreOptions = NSPersistentCloudKitContainerOptions(containerIdentifier: containerIdentifier)
if #available(iOS 14.0, *) {
publicStoreOptions.databaseScope = CKDatabaseScope.public
} else {
// Fallback on earlier versions???
}
publicStoreDescription.cloudKitContainerOptions = publicStoreOptions
print(containerIdentifier)
container.loadPersistentStores(completionHandler: { (loadedStoreDescription, error) in
if let loadError = error as NSError? {
fatalError("###\(#function): Failed to load persistent stores:\(loadError)")
} else if let cloudKitContainerOptions = loadedStoreDescription.cloudKitContainerOptions {
if #available(iOS 14.0, *) {
if .public == loadedStoreDescription.cloudKitContainerOptions?.databaseScope {
self._publicPersistentStore = container.persistentStoreCoordinator.persistentStore(for: loadedStoreDescription.url!)
} else if .private == loadedStoreDescription.cloudKitContainerOptions?.databaseScope {
self._privatePersistentStore = container.persistentStoreCoordinator.persistentStore(for: loadedStoreDescription.url!)
} else if .shared == cloudKitContainerOptions.databaseScope {
self._sharedPersistentStore = container.persistentStoreCoordinator.persistentStore(for: loadedStoreDescription.url!)
}
} else {
// Fallback on earlier versions
}
} /*else if appDelegate.testingEnabled {
if loadedStoreDescription.url!.lastPathComponent.hasSuffix("private.sqlite") {
self._privatePersistentStore = container.persistentStoreCoordinator.persistentStore(for: loadedStoreDescription.url!)
} else if loadedStoreDescription.url!.lastPathComponent.hasSuffix("shared.sqlite") {
self._sharedPersistentStore = container.persistentStoreCoordinator.persistentStore(for: loadedStoreDescription.url!)
}
}*/
})
container.viewContext.mergePolicy = NSMergeByPropertyObjectTrumpMergePolicy
container.viewContext.transactionAuthor = appTransactionAuthorName
// Pin the viewContext to the current generation token, and set it to keep itself up to date with local changes.
container.viewContext.automaticallyMergesChangesFromParent = true
do {
try container.viewContext.setQueryGenerationFrom(.current)
} catch {
fatalError("###\(#function): Failed to pin viewContext to the current generation:\(error)")
}
#if DEBUG
do {
// Use the container to initialize the development schema.
try container.initializeCloudKitSchema(options: [])
} catch {
// Handle any errors.
fatalError("###\(#function): failed to load persistent stores: \(error)")
}
#endif
// Observe Core Data remote change notifications.
NotificationCenter.default.addObserver(self,
selector: #selector(storeRemoteChange(_:)),
name: .NSPersistentStoreRemoteChange,
object: container.persistentStoreCoordinator)
return container
}()
The very first time I run, Creates all the corresponding CD CKRecords in CloudKit public database _defaultZone. All values are copied from Core Data to CloudKit. When the app is actively running I deleted a Core Data record and added a new record it did not delete it from Cloud Kit. Also when I add a new record in Core Data it did not export and add to Cloud Kit. When the app is actively running any changes I make are not exported and updated in Cloud Kit. What changes should I make to the code?
But when I run the app again then all the previous changes that I made when the app was active are updated. So looks like it does not perform live updates until the app is rerun again.
I get another error on the Debug Console "Custom zones are not allowed in public DB". I am not writing to custom DB. I wonder if this is preventing active updates?
oreData: error: CoreData+CloudKit: -[NSCloudKitMirroringDelegate _requestAbortedNotInitialized:](1983): <NSCloudKitMirroringDelegate: 0x2824d16c0> - Never successfully initialized and cannot execute request '<NSCloudKitMirroringExportRequest: 0x280a84780> FDB61E8D-658F-4C77-8615-EF07BAB72BAD' due to error: <CKError 0x28119ba20: "Partial Failure" (2/1011); "Failed to modify some records"; uuid = 6C66A151-DB59-4A1B-B3BD-02CFB9A4139C; container ID = "iCloud.com.greenendpoint.nr2r"; partial errors: {
B-63B7-45D2-BFE0-599972FB6FD7:(com.apple.coredata.cloudkit.zone:defaultOwner) = <CKError 0x2810e44e0: "Server Rejected Request" (15/2027); server message = "Custom zones are not allowed in public DB"; op = 23AFDAC55F70DC8D; uuid = 6C66A151-DB59-4A1B-B3BD-02CFB9A4139C>
Please help!
