On 20 Oct 2011, at 23:37, Jerry Krinock wrote: > When I need to know whether or not a managed object is deleted, often I fall > into the trap of trying -[NSManagedObject isDeleted], forgetting that its > documentation states … > > "… It may return NO at other times, particularly after the object has been > deleted. …" > > In other words, they should have named that method -isDeletedForSure, to > indicate that the NO result is not reliable. > > Anyhow, today I fixed a problem by using this instead … > > BOOL isDeleted ; > isDeleted = [object isDeleted] || ([object managedObjectContext] == nil) ; > > I'm not sure if it will work in all situations. I suppose that sending the > magical -processPendingChanges would be another workaround.
The problem here is that Core Data's definition of "deleted" is a little different to what you'd' expect: Expected: -[NSManagedObjectContext deleteObject:] has been called with the object, and that deletion hasn't been undone Actual: The object is listed under -[NSManagedObjectContext deletedObjects]. i.e. the object has been marked for removal from the parent store/context, next time the context is saved. _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com