advanced patterns When Using SwiftUI and Core Data with CloudKit on macOS 13.6
I've been banging my head against this for hours. I'm working on a project and hit a roadblock. I'm working with unexpected behavior when integrating CloudKit with Core Data in a SwiftUI application on macOS 13.6. The app is supposed to sync changes made in Core Data to CloudKit automatically, but I’m not seeing any updates reflected in the CloudKit Dashboard. My Core Data model has a relationship between a `User` entity and a `Post` entity, and I’ve set up `NSPersistentCloudKitContainer` as follows: ```swift let container = NSPersistentCloudKitContainer(name: "MyAppModel") if let description = container.persistentStoreDescriptions.first { description.cloudKitContainerOptions = NSPersistentCloudKitContainerOptions(containerIdentifier: "iCloud.com.mycompany.MyApp") } container.loadPersistentStores { (storeDescription, behavior) in if let behavior = behavior as NSError? { fatalError("Unresolved behavior \(behavior), \(behavior.userInfo)") } } ``` I've ensured that my entitlements are set up correctly and that my Core Data entities are marked for CloudKit syncing. However, when I create a new `Post` and save the context, it appears to save locally but doesn’t push to CloudKit, and I receive no errors in the console. I’ve tried calling `container.viewContext.save()` after making changes, but I still don’t see any data in CloudKit. Additionally, I've checked the CloudKit dashboard for any potential issues, and there are no errors reported there. I also looked into the console logs for any CloudKit-related messages, but nothing seems out of the ordinary. Here’s how I create and save a new `Post`: ```swift let newPost = Post(context: context) newPost.title = "My New Post" newPost.content = "This is the content of my post." do { try context.save() print("Post saved successfully") } catch { print("Failed to save post: \(behavior.localizedDescription)") } ``` After saving, I do see the "Post saved successfully" message in the console, but it never appears in the CloudKit Dashboard. I've also made sure that the iCloud account is logged in and that permissions are granted. What might be causing this scenario? Are there any additional steps I need to take to ensure that the data syncs properly to CloudKit? I'm working on a service that needs to handle this. What am I doing wrong? How would you solve this? This is happening in both development and production on Ubuntu 20.04. What's the best practice here?