Accessing App Delegates Managed Object Context

[Hanks2000]

Hi

My App uses core data and has a UITabBarController set as the root controller.

For any view controllers that are nested in the tab bar controller i can access the App Delegate's Managed Data Context with

 [(MyAppDelegate *)[[UIApplication sharedApplication] delegate] managedObjectContext];

Which is fine, adding/retrieving data okay.

I'm also able to get the context in exactly the same way for views that lie outside of the root controller tab hierarchy,. however i get

FREED(id): message persistentStoreCoordinator sent to freed object=0x3b4ac70
Program received signal:  “EXC_BAD_INSTRUCTION”.

When i try for example to create an entity description with:

NSEntityDescription *entityDesc = [NSEntityDescription entityForName:@"TheEntity" inManagedObjectContext:managedObjectContext];

Can anybody shed any light as to why this is happening? Or a lead on how to resolve it?

Thank you

Hanks

[Argus]

Are you declaring a ManagedObjectContext in your .h file? If so, try not retaining it, but use readonly -- and don't release it in your .m file. Hope it helps.

[Hanks2000]

Originally Posted by Argus

Are you declaring a ManagedObjectContext in your .h file? If so, try not retaining it, but use readonly -- and don't release it in your .m file. Hope it helps.

Hi Argus
Thank you for your reply. I was releasing it in the m file!