Hi,
I'm trying to bind through a keyPath, but I'm getting nothing but errors. The
most common is:
[<_NSFaultingMutableSet 0x200267fe0> addObserver:forKeyPath:options:context:]
is not supported. Key path: projectCode
I've read that bindings don't necessarily cause faults to fire, but I've got to
believe there's some way to make this work.
I've been working on this for a few hours, I've looked through Core Data and
KVO/KVC documentation, Googled and searched through the list. I may have read
the answer without realizing it...
My data:
Account <--->>ProjectSite<--->>Project
I'm trying to get the projects array controller to load all projects for the
selected Account (so, all Projects for all ProjectSites).
I've got an NSTableView listing accounts on the left, and view controllers to
display detail table views to the right. One of the detail table views lists
all ProjectSites for the selected Account. That's working fine. Another
detail table view should list all Projects for the Account, but I can't get the
Projects array controller to bind to the selected Account. These methods list
all projects for the selected Account:
NSLog(@"Projects for account are %@", [self.selections.account
valueForKeyPath:@"projectSites.projects.displayName"]);
NSLog(@"All projects for account are %@", [[self.selections.account
allProjectsForAccount] valueForKey:@"displayName"]);
But, I can't translate that into the proper ContentSet binding for the Projects
AC. I've tried every combination I could think of, including:
1. creating an Object Controller for the selectedAccount and binding the
Project's ContentSet to that controller with projectSites.projects
2. creating an Array Controller for the selectedAccount's ProjectSites and
binding to that
3. creating a managedObject subclass for Project with a method that returns
[self valueForKeyPath:@"projectSites.projects"] and binding the projects AC's
contentSet to that property
4. using combinations of @distinctUnionOfSets
I've seen posts with others having similar problems, but none of their
solutions seem to be working for me.
Any help would be greatly appreciated.
Thanks.
Brad
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