Re: Problem with NSTreeController, CoreData and bindings
Re: Problem with NSTreeController, CoreData and bindings
- Subject: Re: Problem with NSTreeController, CoreData and bindings
- From: Xander Maas <email@hidden>
- Date: Wed, 8 Aug 2007 22:33:51 +0200
Hi all,
Just solved the problem with the NSTreeController. I had to create a
subclass of the Contact entity and make an accessor. I now get the
right names in the NSOutlineView.
Once again, thanks alot for your help and info. It keeps me running ;)
Xander
On Aug 8, 2007, at 6:40 PM, Dave Fernandes wrote:
The NSOutlineView can expand/collapse a multi-level hierarchy. So
the NSTreeController will also look for a contacts relationship in
your leaf class.
"All child objects for the tree must be key-value-coding compliant
for the same child key path. If necessary you should implement
accessor methods in your model classes, or categories on those
classes, that map the child key to the appropriate class-specific
method name."
Dave
On Aug 8, 2007, at 11:57 AM, Xander Maas wrote:
In my nib I have the children key path of the NSTreeController
bound to contacts, which is the relation to my other entity
(contacts)
Xander
On Aug 8, 2007, at 4:12 PM, mmalc crawford wrote:
On Aug 8, 2007, at 3:49 AM, Xander Maas wrote:
2007-08-08 12:47:29.840 Server Registration[8751]
[<NSManagedObject 0x32c0c0> valueForUndefinedKey:]: this class
is not key value coding-compliant for the key contacts.
Umm, then you've bound something expecting a property 'contacts'
to an object that doesn't have a property 'contacts'...
mmalc
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