Thanks, that helps. I need to study the Core Data Programming Guide again, and this time pay more attention to the FAQs. Lynn
On 2011 Apr 11, at 09:54, Lynn Barton wrote: >> Can someone point me to an example or tutorial that shows how to get the >> value of a to-many relationship attribute of a Core Data entity? My >> application is simple and comparable to the Departments and Employees >> example in Apple's documents. > > You just answered you own question ;) > >> When I select a "department" object I have no trouble accessing any of its >> other properties, but when I try to get its "employees" I get only a >> relationship fault. > >> I am trying to calculate a transient property > > I'd bet that's the problem. In my experience, transient properties are all > pain (lotsa gotchas) with no (performance) gain. Consider either making it a > regular property, or, probably better for your case since a table view can > only show several tens of rows at a time, calculating it as a derived > attribute. For the latter, remember your friend > +keyPathsForValuesAffecting<Foo>. _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
