On Sep 17, 2009, at 9:21 AM, Leon Starr wrote:
So, going back to my example, (and the part everyone disagrees with!) I still don't get it. More importantly, my objc compiler doesn't get it! In the model, Auto.license is properly inherited by the Sedan and Truck subentities. No trouble at all with KVC interactions. But if there is no @property/@dynamic for license in my Truck subclass, (only in the Auto subclasss) I cannot access thisTruck.license without getting a compiler error. Which makes total sense to me since one NSManagedObject subclass (Truck) is not inheriting from another (Auto) in objc. They each inherit from NSObject. But I CAN do [thisTruck valueForKey:@"license"], which also makes perfect sense.
This violates the rule that a subentity must use an Objective-C class that is the same as its superentity, or a subclass of its superentity's Objective-C class.
If the Truck entity is a subentity of Auto, then it may reuse the AutoClass, or a TruckClass which must be a subclass of the AutoClass.
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