“NSPersistentCloudKitContainer”

I am using NSPersistentCloudKitContainer. All data sync in iCloud. And when uninstalled the app, its sync correctly. However, it's required to encrypt sensitive data. I made my password attribute Transformable. Thus work fine locally. However when I delete the app. Install again. All other attributes(String, Int) sync correctly but transformable attribute does not export/synced.Here is my Modelhttps://i.stack.imgur.com/emA4m.pngpublic class EmployeeEntity: NSManagedObject { @NSManaged public var password: NSObject? @NSManaged public var firstName: String? @NSManaged public var lastName: String? @NSManaged public var idNumber: String? @NSManaged public var modifiedDate: Date? @NSManaged public var password: String? @NSManaged public var title: String? static var entityName: String { return EmployeeEntity }}extension EmployeeEntity { static func getListItemFetchRequest() -> NSFetchRequest<EmployeeEntity>{ let request = EmployeeEntity.fetchRequest() as! NSFetchRequest<EmployeeEntity> requ

I'm attempting to use Core Data + CloudKit to persist user's data with the NSPersistentCloudKitContainer class. I'm able to see created records in the Development environment but records won't show in the Production environment. With just this brief description, what could be the issue? Notes I have deployed the schema to the Production environment. I'm using the same device and iCloud account for both environments My Apple ID is the same for my personal and dev account. I'm attempting to add records to Production via a TestFlight build The iCloud toggle for the app is ON. What are some initial thoughts as to why there is a sync issue?

I am using the following to initialize my PersistenCloudKitContainer with the goal of loading a shared poblic cloudKit database: container = NSPersistentCloudKitContainer(name: FaceExplorer) guard let description = container.persistentStoreDescriptions.first else { print(Can't set description) fatalError(Error) } //ios 14 bug fix https://developer.apple.com/forums/thread/682925 description.cloudKitContainerOptions?.setValue(1, forKey: databaseScope) // normal / ios 15 version description.cloudKitContainerOptions?.databaseScope = .public //seems to work & Load on iOS14.5 description.cloudKitContainerOptions?.setValue(iCloud.com.myDomain.myContainerID, forKey: containerIdentifier) container.loadPersistentStores(completionHandler: { (storeDescription, error) in ... This all works great on iOS14 and also loads on iOS15.0 - 15.2 with users logged into iCloud with the iCloud drive option checked. However, when the iCloud drive option is not checked on iOS15 only, the container will not load. Please hel

I use NSPersistentCloudKitContainer to synchronize data between iOS and macOS. After installing the app, it takes long (sometimes up to an hour) for all data to become available. Related to this, I have a few questions: Synchronization seems only to take place when the app runs in the foreground. Is there a way to keep the app synchronizing when it is brought to the background? I have enabled remote notifications and use registerForRemoteNotifications in my app delegate (via UIApplicationDelegateAdaptor). I haven't yet experimented with background processing. Should I do that, and can you point me to some references? Is there a way to check whether the local-stored data matches what's available on the server? E.g. checking whether a (local-stored) NSPersistentHistoryToken matches the latest NSPersistentHistoryToken on the server. Internally NSPersistentCloudKitContainer knows, as I can see log events popping up saying that there are no new data to mirror. I would like to know this to inform

I have a Multiplatform app for iOS and macOS targets written 100% SwiftUI. I'd prefer to keep it that way, although will consider view representable options. Its a Core Data driven app, also implementing NSPersistentCloudKitContainer, I have a three column view, the first a List with style .sidebar, the second a List of items for an Entity in my Core Data model object graph, the third a detail view for the selected item in the second column List. I have begun to implement @SceneStorage to persist selected rows/cells in the lists (and sidebar), which works very well. However, if a selected row or cell is half way down the list => off screen, then the user cannot see the selection and for some reason the detail view does not show the details of the selected item, until the user manually scrolls down to the item in the list. When the selected item is revealed on screen via the manual scroll action, it is shown as selected item in the list and the detail data is only then populated. I want to be able

I'm trying to create a note-taking like app that uses NSPersistentCloudKitContainer and core data. The store uses the NSMergeByPropertyObjectTrumpMergePolicy, which is fine for almost every property. For example, if the name of a file is changed on two different devices, then it's fine to use the latest value. The problem is that the note text cannot be overridden by the latest value if it's changed on two devices at once. It needs to be detected as a conflict so the user can choose which version they want to keep. I can replicate the behavior by turning off wifi on one device and writing content, then writing content on a different device at the same time. When I turn the wifi back on, whichever device saved the changes last completely overrides the other device's text. What I'd like to accomplish is detect when there is a conflict of text, then create a duplicate file called Conflicted Copy. Bonus points if someone can tell me how Apple Notes magically merges text without ever creating a conflict.

Identify and resolve synchronization issues when working with NSPersistentCloudKitContainer. View Technote TN3164 >

Explore the details inside the synchronization of NSPersistentCloudKitContainer by capturing and analyzing a sysdiagnose. View Technote TN3163 >

Hi, I am implementing the synchronisation of SwiftData with CloudKit as described in the Apple Documentation titled - Syncing model data across a person’s devices. My app runs fine on iPhone without activating CloudKit under Signing and Capabilities option. But when activated, I get a CoreData error with a code: 134060. My app is in development stage. The following is the code snippet for your reference taken from the main structure adopting the App protocol. init() { do { #if DEBUG let schema = Schema([ Debit.self, Credit.self, ]) let modelConfiguration = ModelConfiguration(schema: schema, isStoredInMemoryOnly: false) // Use an autorelease pool to make sure Swift deallocates the persistent // container before setting up the SwiftData stack. try autoreleasepool { let desc = NSPersistentStoreDescription(url: modelConfiguration.url) let opts = NSPersistentCloudKitContainerOptions(containerIdentifier: iCloud.com.sureshco.MyFirstApp) desc.cloudKitContainerOptions = opts // Load the store synchronously so it compl

I've successfully followed the sample code from Apple: Synchronizing a local store to the cloud to deduplicate entities that are created in the user's private store. However my app also has a public store that needs deduplication and if I enable the NSPersistentStoreRemoteChangeNotificationPostOptionKey for both the private and public store then no deduplication will occur in my private store. This is reproducible every time by not setting NSPersistentStoreRemoteChangeNotificationPostOptionKey for the public store. Has anyone else experienced this and has anyone got a solution to get it to work? Persistence setup code: private static func makeStoreDescription(for database: Database) -> NSPersistentStoreDescription { let url: URL let scope: CKDatabase.Scope let configuration: String switch database { case .private: url = Self.privateStoreURL scope = .private configuration = Private case .public: url = Self.publicStoreURL scope = .public configuration = Public } let storeDescription = NSPersistentStoreDescri

The Apple Demo, which is very thorough, doesn't prune persistent history?And the Forum Thread seems to suggest that persistent history is integral to how NSPersistentCloudKitContainer works.Are we supposed to explicitly prune persistent history ourselves or is it handled for us by NSPersistentCloudKitContainer?Apple Demo: https://developer.apple.com/documentation/coredata/synchronizing_a_local_store_to_the_cloudForum Thread: https://forums.developer.apple.com/message/373336#373336

The documentation - https://developer.apple.com/documentation/coredata/mirroring_a_core_data_store_with_cloudkit/creating_a_core_data_model_for_cloudkit for Creating a Core Data Model for CloudKit states that Unique constraints aren’t supported. but I've tried to set one up and it seems to be working fine (locally, I haven't tried syncing yet) on Xcode 11.5 & iOS 13.5. If I'm not mistaken, when NSPersistentCloudKitContainer was first introduced Xcode displayed an error if you tried to add a constraint to an Entity, but that doesn't seem to happen anymore. Has this restriction been lifted or do I just remember it incorrectly and it never showed any errors? If the restriction has not been lifted, does anyone know how to make sure that Entities are not duplicated? It'll be easy to add a cleanup operation after every sync, but so far I am not aware of any way to know when the sync has fully finished - https://developer.apple.com/forums/thread/652607. Thanks.

For the past two days I've been trying to figure out how to get the notification when the iCloud data has changed. I use a NSPersistentCloudKitContainer and am able to see my changes from one device in another. I just added local notifications to my app and I save the notification to an iCloud entity whenever a user sets it.Since I'm adding this notification in iCloud, a remote notification with iCloud changes will be sent to the users devices with iCloud enabled. What I would like to do is when the device gets this notification, read from the new data and set a local notification on the current device if a notification entity is found.But I can not seem to figure out how to intercept this change notification. I tried using didReceive and didReceiveRemoteNotification from the AppDelegate, but none of these functions fired when the device received the iCloud changes. In the Xcode console I can see that the device is notified with the data.How can I intercept the background notification that contains t

The local data in iPhone system File is inserted to the app core data through Share Extension. The app uses NSPersistentCloudKitContainer to sync core data. But when importing local data from iPhone local File, the data always go to iCloud of the app at first and then syncing data to the app from iCloud. This leads to that the app cannot import data when the iCloud drive is closed or the iCloud is full. Is there any way to import data to the app other than to the app's iCloud at first?

When I sync my large Core Data database with NSPersistentCloudKitContainer, inserting new rows works well for up to 10k rows. (in batches of ~400 inserts) After that, CloudKit receives a 503 Service Unavailable error with a timeout. Here's the log: CoreData: CloudKit: CoreData+CloudKit: -[PFCloudKitExporter exportIfNecessary]_block_invoke_2(153): : Found 22161 objects needing export. 2021-01-14 11:26:54.985447+0100 [1299:350390] [error] error: CoreData+CloudKit: -[NSCloudKitMirroringDelegate _exportFinishedWithResult:exporter:](1163): : Export failed with error: The API documentation - https://developer.apple.com/library/archive/documentation/DataManagement/Conceptual/CloudKitWebServicesReference/ErrorCodes.html#//apple_ref/doc/uid/TP40015240-CH4-SW1 says 503 means interal server error (try again later) and also says that for throttling the status code would be 429, so I guess it's not rate limiting? I only found that there is a rate limit of 40 requests/second, but since CoreData is doing batch ins