NSPersistentCloudKitContainer

Is it ok to use automaticallyMergesChangesFromParent to true for a managed object context that pins its query generation to current? I have heard from a few sources that in most cases, it’s not recommended to set automaticallyMergesChangesFromParent to true for a managed object context that pins its query generation to current. A source I have seen says: When you pin a managed object context to a specific query generation, you’re explicitly telling the context to view the data as it existed at the time of that generation token (often referred to as a snapshot). This ensures that the context is isolated from any subsequent changes made by other contexts or background tasks. But this may Conflict with Automatic Merging because: The purpose of setting automaticallyMergesChangesFromParent to true is to have the context automatically merge changes from the parent (e.g., background or main context) into itself whenever the parent context saves changes. This behavior conflicts with the concept of a pinned query gene

I'm using NSPersistentCloudKitContainer to sync CoreData to CloudKit public database but I have the problem that canUpdateRecord always returns true even for objects created by another iCloud user with _icloud role permission set to Read only. Am I missing something?

I'm a bit lost because of a problem I never experienced before: I create entries in 3 Core Data tables and link them. As long as the app is open, everything is fine, I can see the database entries in the three tables. Once the App is closed and restarted, however, the new entries in two of the three tables are gone. I use Core Data for data storage and DB Browser for SQLite for inspecting the database running in the Simulator. Here's the relevant function where all Core Data handling happens: /** Creates a new ComposedFoodItem from the ComposedFoodItemViewModel. Creates the related FoodItem and the Ingredients. Creates all relationships. - Parameter composedFoodItemVM: The source view model. - Returns: A Core Data ComposedFoodItem; nil if there are no Ingredients. */ static func create(from composedFoodItemVM: ComposedFoodItemViewModel, generateTypicalAmounts: Bool) -> ComposedFoodItem? { debugPrint(AppDelegate.persistentContainer.persistentStoreDescriptions) // The location of the .sqlite file let moc = A

Hello all! I'm porting a ios15+ swiftui app to be compatible with Swift 6 and enabling strict concurrency checking gave me a warning that will be an error when switching to swift 6. I'm initializing a persistence controller for my cloud kit container: import CoreData struct PersistenceController { static let shared = PersistenceController() let container: NSPersistentCloudKitContainer init() { container = NSPersistentCloudKitContainer(name: IBreviary) container.loadPersistentStores(completionHandler: { _, error in if let error = error as NSError? { fatalError(Unresolved error (error), (error.userInfo)) } }) container.viewContext.mergePolicy = NSMergeByPropertyObjectTrumpMergePolicy container.viewContext.automaticallyMergesChangesFromParent = true } } The warning is on the merge policy: Reference to var 'NSMergeByPropertyObjectTrumpMergePolicy' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode I have no idea how to make this concur

I'm using NSPersistentCloudKitContainer and in the CloudKit dashboards I have added indexes for all my records modifiedTimestamp queryable, modifiedTimestamp sortable and recordName queryable. But I'm still getting this warning message in the console. error: CoreData+CloudKit: -[NSCloudKitMirroringDelegate _importFinishedWithResult:importer:](1400): : Import failed with error: error: CoreData+CloudKit: -[NSCloudKitMirroringDelegate recoverFromError:](2312): - Attempting recovery from error: error: CoreData+CloudKit: -[NSCloudKitMirroringDelegate _recoverFromError:withZoneIDs:forStore:inMonitor:](2622): - Failed to recover from error: CKErrorDomain:12 Recovery encountered the following error: (null):0 error: CoreData+CloudKit: -[NSCloudKitMirroringDelegate resetAfterError:andKeepContainer:](612): - resetting internal state after error: error: CoreData+CloudKit: -[NSCloudKitMirroringDelegate _requestAbortedNotInitialized:](2200): - Never successfully initialized and cannot execute request ' A3F

Some users of my app are reporting total loss of data while using the app. This is happening specifically when they enable iCloud sync. I am doing following private func setupContainer(enableICloud: Bool) { container = NSPersistentCloudKitContainer(name: ) container.viewContext.automaticallyMergesChangesFromParent = true container.viewContext.mergePolicy = NSMergeByPropertyObjectTrumpMergePolicy guard let description: NSPersistentStoreDescription = container.persistentStoreDescriptions.first else { fatalError() } description.setOption(true as NSNumber, forKey: NSPersistentHistoryTrackingKey) description.setOption(true as NSNumber, forKey: NSPersistentStoreRemoteChangeNotificationPostOptionKey) if enableICloud == false { description.cloudKitContainerOptions = nil } container.loadPersistentStores { description, error in if let error { // Handle error } } } When user clicks on Toggle to enable/disable iCloud sync I just set the description.cloudKitContainerOptions to nil and then user is asked to restar