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PORestKit 0.20 — What is the preferred way to create a new NSManagedObject?
 

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  1. PORestKit 0.20 — What is the preferred way to create a new NSManagedObject?
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    <p>I'm curious to know what the best way is to create a new NSManagedObject in RestKit 0.20? Currently my code looks something like this:</p> <pre><code>#pragma mark - navigation buttons - (void)createButtonDidTouch { // create new album object NSManagedObjectContext *context = [[NSManagedObjectContext alloc] initWithConcurrencyType:NSMainQueueConcurrencyType]; NSManagedObjectContext *parentContext = RKObjectManager.sharedManager.managedObjectStore.mainQueueManagedObjectContext; context.parentContext = parentContext; NSEntityDescription *entityDescription = [NSEntityDescription entityForName:@"Album" inManagedObjectContext:parentContext]; Album *newAlbum = [[Album alloc] initWithEntity:entityDescription insertIntoManagedObjectContext:context]; // pass object to create view to manipulate AlbumCreateViewController *createViewController = [[AlbumCreateViewController alloc] initWithData:newAlbum]; createViewController.delegate = self; createViewController.managedObjectContext = context; UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:createViewController]; navController.modalTransitionStyle = UIModalTransitionStyleCoverVertical; [self presentViewController:navController animated:YES completion:nil]; } #pragma mark - create view controller delegate - (void)createViewControllerDidSave:(NSManagedObject *)data { // dismiss the create view controller and POST // FIXME: add restkit code to save the object NSLog(@"save the object..."); NSDictionary *userInfo = [KeychainUtility load:@"userInfo"]; NSString *path = [NSString stringWithFormat:@"/albums/add/%@/%@", userInfo[@"userID"], userInfo[@"apiKey"]]; [RKObjectManager.sharedManager postObject:data path:path parameters:nil success:^(RKObjectRequestOperation *operation, RKMappingResult *mappingResult) { operation.targetObject = data; } failure:^(RKObjectRequestOperation *operation, NSError *error) { NSLog(@"create album error: %@", error); }]; [self dismissViewControllerAnimated:YES completion:nil]; } - (void)createViewControllerDidCancel:(NSManagedObject *)data { // dismiss the create view controller NSLog(@"delete the object..."); // FIXME: add restkit code to delete the object [self dismissViewControllerAnimated:YES completion:nil]; } </code></pre> <p>I'm also curious to know what my responsibilities are for saving / deleting this object. If I POST to the server via RestKit is the managed object context saved?</p> <p>What if I decide to cancel this creation process — what's the preferred way to delete this object?</p> <p>Basically how much is RestKit doing for me, and what should I make sure I'm doing. I haven't found much documentation on this and would like to be clear on it.</p>
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