NSArrayController in entity mode and permutations (CoreData question)
NSArrayController in entity mode and permutations (CoreData question)
- Subject: NSArrayController in entity mode and permutations (CoreData question)
- From: vincent habchi <email@hidden>
- Date: Mon, 12 Apr 2010 17:15:14 +0200
Hi again!
I'd like to change the place of a NSManagedObject stored in a NSArrayController in entity mode (after a drag'n drop operation). I didn't find any suitable primitive, so I decided to go something like "removeAtSomeIndex" and then immediately after "insertAtSomeOtherIndex".
However, it does not work: it seems as soon as an object is removed from the array, core data is told to unlink it, so, at the end of the permutation, I end up with an array full of object that get removed in core data at a later point, and after a while I get faults with non-existent objects.
Is there any trick to solve this knot?
Thanks a lot,
Vincent_______________________________________________
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