“SwiftData inheritance relationship”

Hello everyone, How do I need to handle the delete with the relationship deny? When I delete a model that still has a reference to another model, it deletes it from the UI. But when I re-run the simulator, it's back again. Does someone have a hint for me? How is it possible to ensure the uniqueness of the entries? Because I saw that the Attribute unique can't be used with CloudKit.

Hi, has anybody managed to get two sqlite stores working? If I define the stores with a configuration for each it seems like that only the first configuration and and therefore the store is recognised. This is how I define the configuration and container: import SwiftData @main struct SwiftDataTestApp: App { var modelContainer: ModelContainer init() { let fullSchema = Schema([ SetModel.self, NewsModel.self ]) let setConfiguration = ModelConfiguration( setconfig, schema: Schema([SetModel.self]), url: FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!.appendingPathComponent(Sets.sqlite), readOnly: false) let newsConfiguration = ModelConfiguration( newsconfig, schema: Schema([NewsModel.self]), url: FileManager.default.urls(for: .cachesDirectory, in: .userDomainMask).first!.appendingPathComponent(News.sqlite), readOnly: false) modelContainer = try! ModelContainer(for: fullSchema, configurations: [setConfiguration,newsConfiguration]) } var body: some Scene { WindowGroup { Conten

CoreData contexts expose a very convenient existingObject API that allows to fallback to retrieve from the persistent store in case the object is not registered in the context yet. I don't see any equivalent in SwiftData. Does that mean we should fallback to fetch methods instead? Is there any rationale behind the lack of this API other than that it's still in development. For more details about what I'm trying to do. I have a read-only context (the main context) and a read-write context. After inserting a model in the read-write context (and saving), I'd like to retrieve the equivalent object from the read-only context.

As far as I can tell, there’s no equivalent to Core Data’s NSFetchedResultsController in SwiftData. It would be very helpful to have a way to respond to sets of changes in a ModelContext outside of a SwiftUI view. For instance, this is very helpful when using a Model-View-ViewModel architecture. The @Query property wrapper is great for use in a SwiftUI view, but sometimes it’s helpful to process data outside of the view itself. The fetch() method on ModelContext is helpful for one-time operations, but as far as I can't tell it doesn't address receiving changes on an ongoing basis. Am I missing some equivalent for this use case? Also filed as feedback FB12288916

I have an app that uses a Share Extension that allows the user to share videos, from Files and Photos etc., the video URL and some related data is then persisted with SwiftData and synchronized with CloudKit. This code has worked consistently for a long time although recently, with iOS 26 and recent builds of iOS 18, I have observed that the video is either not saved to SwiftData (iOS 26.0), or available locally when the app is opened on the same device where the share occurred, but not synchronized to other devices (iOS 18.7 and iOS 26.1 beta). Assuming the video is opened locally after being shared into the app, it is typically synchronized with CloudKit to other devices although it's not as reliable as it should be. Is there a reliable approach in the Share Extension to ensure that the data is saved to the local SwiftData database and then synchronized with CloudKit. I suspect it could be that the lifetime of the Share Extension has become even more constrained in recent OS updat

Hi, I am developing a Screen Time App and I am having issues with the ShieldConfigurationExtension (ShieldConfigurationDataSource). I know this extensions is sandboxed but I should be able to read data from the main app. I am using SwiftData as my database, but I am unable to initialize it in the extensions with an error indicating insufficient file permissions. I have App Group set up and I am able to share data using UserDefaults but that is just inconvenient. Is there any way I could just open the SwiftData in read only mode so that I could display the user some info on the shield? SwiftData Init: private func setupContainer() throws { let schema = Schema([ DogEntity.self, HouseEntity.self ]) // Use app group container if available let config: ModelConfiguration if let containerURL = FileManager.default.containerURL( forSecurityApplicationGroupIdentifier: group.(Bundle.app.bundleIdentifier ?? ) ) { config = ModelConfiguration(schema: schema, url: containerURL.appendingPathCompone

I am developing Tasty Recipes app. I want to load all data related to this app such Recipe Category, Recipes List, Recipes Inscredient, Preparation Methods and so on. How can I load and store all data using SwiftData. User is going to use these data. They will update few things like Favourite Recipes, Rating. How can I do this.