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    <p>I tried Dave approach, but did not work for me. I finally found the solution in Apple's example <a href="http://developer.apple.com/iphone/library/samplecode/CoreDataBooks/index.html" rel="nofollow noreferrer">CoreDataBooks</a> </p> <p>The trick is to create a new context that shares the coordinator with you App's context. To discard the changes you dont need to do a thing, just discard the new context object. Since you share the coordinator, saving updates your main context.</p> <p>Here is my adapted version, where I use a static object for the temp context to create a new ChannelMO object.</p> <pre><code>//Gets a new ChannelMO that is part of the addingManagedContext +(ChannelMO*) getNewChannelMO{ // Create a new managed object context for the new channel -- set its persistent store coordinator to the same as that from the fetched results controller's context. NSManagedObjectContext *addingContext = [[NSManagedObjectContext alloc] init]; addingManagedObjectContext = addingContext; [addingManagedObjectContext setPersistentStoreCoordinator:[[self getContext] persistentStoreCoordinator]]; ChannelMO* aux = (ChannelMO *)[NSEntityDescription insertNewObjectForEntityForName:@"ChannelMO" inManagedObjectContext:addingManagedObjectContext]; return aux; } +(void) saveAddingContext{ NSNotificationCenter *dnc = [NSNotificationCenter defaultCenter]; [dnc addObserver:self selector:@selector(addControllerContextDidSave:) name:NSManagedObjectContextDidSaveNotification object:addingManagedObjectContext]; NSError *error; if (![addingManagedObjectContext save:&amp;error]) { // Update to handle the error appropriately. NSLog(@"Unresolved error %@, %@", error, [error userInfo]); exit(-1); // Fail } [dnc removeObserver:self name:NSManagedObjectContextDidSaveNotification object:addingManagedObjectContext]; // Release the adding managed object context. addingManagedObjectContext = nil; } </code></pre> <p>I hope it helps</p> <p>Gonso</p>
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