I just ran a test where I commented out the calls that start/end
grouping. Now the undo menu item is not enabled. This suggests that
either the UI is not using the same undo manager as CoreData, or the
changes are not being recorded. Back to the documentation.
Michael
On Mar 5, 2008, at 7:53 PM, Ben Trumbull wrote:
At 6:58 PM -0800 3/5/08, Michael Latta wrote:
The calls are on the Will/Did undo/redo notifications not the KVO
callbacks on object changes.
Ah, okay. There shouldn't be any need to call -
processPendingChanges there, unless you're programmatically working
with your own undo groups.
What I am seeing is that my code changes a managed object property,
I undo, and no change occurs in the managed object. The property
affected is a binary attribute (a CATransform3D as bytes).
Does your code changing the property trigger a KVO event (i.e. are
you missing a call to -willChangeValueForKey:) ? Do you see
notifications from the MOC when you initially make the change ?
Are you undoing programmatically or as a user ?
The undo behaves the same as before I added any notification
processing however.
That suggests the problem lies elsewhere.
--
-Ben
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