Exception thrown in NSOrderedSet generated accessors

Question

On my Lion app, I have this data model:

The relationship subitem

Answer 1

Personally I have just replaced the calls to the CoreData generated methods with direct calls to the method as outlined in another solution by @Stephan:

NSMutableOrderedSet* tempSet = [self mutableOrderedSetValueForKey:@"subitems"];
      [tempSet addObject:value];
[tempSet addObject:value];

This removes the need for categories that might later conflict with a solution from Apple to the generated code when the bug is fixed.

This has the added plus of being the official way to do it!