core data - problem with NSPopupButtonCell

FROM : Pavel Hlavnicka
DATE : Thu Jun 01 20:01:40 2006

Hi all,

I've problem as follows, looks like a bug, but usually it's not :)

- I have a core data entity with an integer value

- in UI I want to have NSPopuppButton to edit it and display some human
readable value

- to achieve this I have a property file with enumerations (see example)

- in runtime I parse this property file and bind it to
  NSObjectController

- for NSPopupButton I set content contentObjects contentValues to array
  controller bound to NSObjectController (all to arangedObjects)

- selectedObejct is bound to array controller for the entity (selection)


So far so good... but is stops working as I try to use the same in
NSTableView with colum enhanced with NSPopupButtonCell.

As soon as I do this (and I change selectedObject binding from selection
to arrangedObjects) it sopos to work and I see an excetion telling that
[NSNumber] does not support key-value coding for "value" - what is the
name of non-core data controller used for contentValues binding.

Sample code is available here:

http://termit.gingerall.cz/~pavel/cocoa/coreissue.tar.gz

Current code is broken, just remove "type" column from NSTableView or
unbound it and it works with simple NSPopupButton.

Thanks in avance for any explanation.

P.


--
Pavel Hlavnicka
Ginger Alliance
www.gingerall.com