NSTreeController and NSBrowser
NSTreeController and NSBrowser
- Subject: NSTreeController and NSBrowser
- From: Joe Osborn <email@hidden>
- Date: Mon, 30 May 2005 17:27:23 -0500
A quick search through the mailing list didn't turn up anything on
using NSTreeController with NSBrowser, and the sample code in /
Developer/Examples/CoreData/OutlineEdit wasn't quite enough, and was
about NSOutlineView anyway.
So, the guts of my question is: Given a known-populated managed
object context, and a tree controller set to use that and with the
entity type set to an abstract superentity of my actual entities,
which tree controller is bound to the content of an NSBrowser... why
am I getting a blank browser?
A zip archive of the project is available at http://homepage.mac.com/
being/ocb.zip . Blah, blah, license stuff, anybody can do whatever
they want with it, I don't care.
Any critiques on the .xcdatamodel would be welcome, too, I'm used to
OO modeling, but Core Data modeling seems different somehow. Fetch
requests and so on give a bit more 'how' than I'm used to, and I'm
not quite sure yet what are good candidates for inverse relationships
and what are good candidates for fetched properties.
In the end, though, I just would like to "put the damned data on the
damned screen", as the saying goes.
(Any tips in general on debugging core data/bindings? It seems to
work very invisibly, and so things go wrong a lot of the time without
complaining. Anyone have hints on this class of problem?)
__joe
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