5/18/2023 0 Comments Core data mergeWhen the record name is combined with a zone identifier, you get a CKRecordID.įunny thing: Core Data will prefix everything with CD to s*egregate the things it manages. Take Post for example, the class Core Data generates and the record along with it that CloudKit generates will look like this:Ĭore Data owns the recordID for all of the objects that it creates in CloudKit, and for each one CloudKit will generates a UUID to use as its record name. let shared = NSPersistentStoreDescription(url: URL(fileURLWithPath: "/files/shared.sqlite"))Ĭloud.cloudKitContainerOptions = NSPersistentCloudKitContainerOptions(containerIdentifier: "")Ĭore Data generates subclasses of NSManagedObject for us to use in code. What if we want to share some data in CloudKit across multiply applications we happened to work on? We can do this by just adding three lines of code. nfiguration = "Local" let cloud = NSPersistentStoreDescription(url: URL(fileURLWithPath: "/files/cloud.sqlite"))Ĭloud.cloudKitContainerOptions = NSPersistentCloudKitContainerOptions(containerIdentifier: "")Ĭontainer.persistentStoreDescriptions = Let local = NSPersistentStoreDescription(url: URL(fileURLWithPath: "/files/local.sqlite")) let container = NSPersistentCloudKitContainer(name: "CloudKitContainer") Get better merge behavior with relationshipsīy adding new configurations in xcdatamodel with a few lines of code, you can manage which entities you want to sync.NSPersistentCloudKitContainer resolves conflicts automatically.Collaboration is not conflict resolution.Enforcement of different types of constraints.More on Making Apps with Core Data Add on to our foundation Change processing with history tracking.Responsive user interfaces with NSFetchResultsController.Life After Adopting NSPersistentCloudKitContainer Build Great Apps with Core Data ![]() Transformation of NSManagedObject to CKRecord. ![]() after let container = NSPersistentCloudKitContainer(name: "WWDCDemo") before let container = NSPersistentContainer(name: "WWDCDemo") ![]() With the new subclass NSPersistentCloudKitContainer, you can add CloudKit functionality to existing CoreData applications by changing as little as one line of code. If you ever built a CoreData application before, you would have seen NSPersistentContainer here. Both support a wide variety of applications.CloudKit provides distributed persistence.To solve this, we typically want to turn to cloud storage, because it offers us the promise of moving data from one device, seamlessly and transparently, to all the other devices that we owned.Ĭloud storage has benefit even if we only have a single device such as data backup and restore. Join us to learn more about combining these frameworks to provide a great experience across all your customers’ devices.ĭata we create on one device is naturally trapped. See how new Core Data APIs make it easy to manage the flow of data through your application, as well as in and out of CloudKit. Learn about combining these complementary technologies to easily build cloud-backed applications. ![]() Description: CloudKit offers powerful, cloud-syncing technology while Core Data provides extensive data modeling and persistence APIs.
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