I have v3 models in coredata (model: Event, Lecture), and make new model in v4 with swiftdata but model name, property is different (model: EventModel, LectureModel).
For migration, I add V3Schema, V4Schema and MigrationPlan.
enum V4Schema: VersionedSchema {
static var models: [any PersistentModel.Type] = [LectureModel.self, EventModel.self ]
static var versionIdentifier = Schema.Version(4, 0, 0)
}
enum V3Schema: VersionedSchema {
static var models: [any PersistentModel.Type] = [Event.self, Lecture.self]
static var versionIdentifier = Schema.Version(3, 5, 2)
}
enum ModelMigrationPlan: SchemaMigrationPlan {
static var schemas: [any VersionedSchema.Type] = [V3Schema.self, V4Schema.self]
static var stages: [MigrationStage] = [migrateV3ToV4]
}
extension ModelMigrationPlan {
static let migrateV3ToV4 = MigrationStage.custom(fromVersion: V3Schema.self,
toVersion: V4Schema.self,
willMigrate: willMigrate,
didMigrate: { _ in Log.debug(message: "Migration Complete") })
}
private func willMigrate(context: ModelContext) throws {
try migrateLectures(context: context)
try migrateEvents(context: context)
try context.save()
}
private func migrateEventTypes(context: ModelContext) throws {
// create new v4 event model using v3 event model.
}
private func migrateLectures(context: ModelContext) throws {
// create new v4 lecture model using v3 lecture model.
}
static let release: ModelContainer = {
let v4Schema = Schema(V4Schema.models)
let containerURL = FileManager.default.containerURL(forSecurityApplicationGroupIdentifier: "app group id")
let databaseURL = containerURL?.appending(path: "**.sqlite")
let configuration = ModelConfiguration("**",
schema: v4Schema,
url: databaseURL!,
cloudKitDatabase: .private("**"))
#if DEBUG
do {
try autoreleasepool {
let desc = NSPersistentStoreDescription(url: configuration.url)
let opts = NSPersistentCloudKitContainerOptions(containerIdentifier: configuration.cloudKitContainerIdentifier!)
desc.cloudKitContainerOptions = opts
desc.shouldAddStoreAsynchronously = false
if let model = NSManagedObjectModel.makeManagedObjectModel(for: V4Schema.models) {
let container = NSPersistentCloudKitContainer(name: "**", managedObjectModel: model)
container.persistentStoreDescriptions = [desc]
container.loadPersistentStores(completionHandler: { _, err in
if let err {
Log.error(message: "Store open failed: \(err.localizedDescription)")
}
})
try container.initializeCloudKitSchema()
Log.debug(message: "Initialize Cloudkit Schema")
if let store = container.persistentStoreCoordinator.persistentStores.first {
try container.persistentStoreCoordinator.remove(store)
}
}
}
} catch {
Log.error(message: "Failed: \(error.localizedDescription)")
}
#endif
return try! ModelContainer(for: v4Schema, migrationPlan: ModelMigrationPlan.self, configurations: configuration)
}()
But when I run, I got error message.
CoreData: CloudKit: CoreData+CloudKit: -[NSCloudKitMirroringDelegate _scheduleAutomatedExportWithLabel:activity:completionHandler:]_block_invoke(3508): <NSCloudKitMirroringDelegate: 0x1036b1540> - Finished automatic export - ExportActivity - with result: <NSCloudKitMirroringResult: 0x1035da810> storeIdentifier: ***** success: 0 madeChanges: 0 error: Error Domain=NSCocoaErrorDomain Code=134407 "Request '*****' was cancelled because the store was removed from the coordinator." UserInfo={NSLocalizedFailureReason=Request '****' was cancelled because the store was removed from the coordinator.}
I don't know why store was removed from the coordinator. Any have solutions?
