Migrate Persistant Store Crash

Question

I have a switch that turns iCloud on or off for an iOS 7 app. iCloud sync works fine. When iCloud is on and I turn it off, I call this code:

- (void)migrateiClou         


        

Answer 1

Try This

[psc removePersistentStore:currentStore error:nil];

[psc migratePersistentStore:currentStore
                      toURL:self.store
                    options:options
                   withType:NSSQLiteStoreType
                      error:&error];

[psc addPersistentStoreWithType:NSSQLiteStoreType
                  configuration:nil
                            URL:self.store
                        options:options /* options for local store */
                          error:nil];

UPDATE: new solution

NSPersistentStoreCoordinator * persistentStoreCoordinator = self.persistentStoreCoordinator;

NSPersistentStore * persistentStore = [[persistentStoreCoordinator persistentStores] firstObject];

NSMutableDictionary * localStoreOptions = [[self localPersistentStoreOptions] mutableCopy];

[localStoreOptions setObject:@YES forKey:NSPersistentStoreRemoveUbiquitousMetadataOption];

[[NSFileManager defaultManager] copyItemAtPath:persistentStore.URL.path toPath:[self storeURL].path error:nil];

NSPersistentStoreCoordinator * newPersistentStoreCoordinator;

newPersistentStoreCoordinator = [[NSPersistentStoreCoordinator alloc] initWithManagedObjectModel:[self managedObjectModel]];

[newPersistentStoreCoordinator addPersistentStoreWithType:NSSQLiteStoreType

                                            configuration:nil

                                                      URL:[self storeURL]

                                                  options:localStoreOptions

                                                    error:nil];

[self setPersistentStoreCoordinator:newPersistentStoreCoordinator];

[self setupManagedObjectContext]; //initialize new moc with new persistent store coordinator