What would cause an error to come back null, this is what I have + (BOOL)saveContext:(NSManagedObjectContext *)context开发者_开发技巧
I have an architectural question. My App uses a TabBarController right in the application window. The ApplicationDelegate creates the managedObjectContext, although it actually doesn\'t need it.
I\'m using Core Data + sqlite as a data cache. The app reads in a file into core data, then uses Core Data to run the app. Saves are done to both the NSManagedObjectContext and to the file. I\'ve noti
I\'m relatively new to iPhone dev and have been trying to build an application to understand how CoreData works.
I\'m a first time Core Data user/learner for iPhone, I thought that [managedObjectContext save:$error] was used to save changes to the Persistant Store.
I currently have an NSManagedObjectContext containing 5 Video Objects displayed in a table view. When a user selects a row, I\'m going to push in a new view controller to display object details, and
I have a MOC created in my AppDelegate class. I have a MOC property in my RootView which is set by the AppDelegate with something like:
I would like to know if I can do this VIEW 1: use NSFetchedResultsController on TABLEA to retrieve the data, display in a table view and take actions to save it
Reference POST: Core Data - Basic Questions I am able to get the Managed object context from this piece of code. It bring me to another question. I have 2 VIEW CONTROLLERS and 1 NSObject
I\'m a pretty comfortable CoreData user. I had a problem that was absolutely killing me, figured out what was going wrong and have NO CLUE why it was causing the problems I was seeing. Can anyone expl
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