Hello,
Been bashing my head on this one. Did lots of googling and apple docs
reading but haven't found an answer so any help would be appreciated.
As an example I have 2 entities in a Core Data app...
Project
Project.name
Project.startDate
Type
Type.name
...add a one-to-one relationship...
Project.type --> Type
When the application starts I auto populate Type with a bunch of
entries from info.plist in App Delegate and set a sort descriptor on
the Projects array controller based on "startDate".
I set up a table with the following columns...
Name --> value --> Project.arrangedObjects.name
Date --> value --> Project.arrangedObjects.startDate
Type --> value --> Project.arrangedObjects.type.name
Everything works great so far....add/edit/remove/sort...great.
I want to now be able to have the table re-sorted on-the-fly after the
startDate has been changed on any of the objects in the table. I turn
on "Auto Rearrange Content" on the Projects array controller in IB
and that seems to work in the app. If I restart the app I get this in
the log...
"Cannot remove an observer <NSTableBinder 0x191940> for the key path
"type.name" from <NSManagedObject 0x1da520> because it is not
registered as an observer"
...and trying to add/remove any objects results in more errors like
above. I played around with this and it only seems to happen when
there's a column bound through a relationship. If I remove this
binding, essentially removing the "type" column on the example table
above, it works fine.
Has anyone run into this and how does one deal with it?
Thanks!
Chris
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