Re: Tiger problem after modifying managed object model at runtime
Re: Tiger problem after modifying managed object model at runtime
- Subject: Re: Tiger problem after modifying managed object model at runtime
- From: Kai Brüning <email@hidden>
- Date: Fri, 30 Nov 2007 09:50:18 +0100
Hi Ben,
thanks a lot, this solved the problem.
Only, Leopard seems to add new properties to subentities immediately (that is, not deferred until the model is added to the NSPersistentStoreCoordinator).
So now I recursively add new properties to subentities and simply stop if I find the property in a subentity already.
Kai
>>I am modifying a managed object model at runtime after having merged it from separate .mom files (see also
>>my earlier post "Core Data: Cross-Model Relationships").
>>
>>The modification is setting up a few relationships between the now merged models. It works all nice under
>>Leopard, but fails under Tiger. The modifications are done under Tiger, too, as far as I checked it in the
>>debugger. But when trying to create entities with the resulting model, I get an exception saying
>>"<FCTableLineItem 0x4f2210> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the
>>key usedByInvoiceItems." when trying to insertNewObjectForEntityForName for entity "TableLineItem":
>
>On Tiger, during runtime modifications to the model, Core Data doesn't automatically add individual properties to subentities. On Leopard, we make an effort to do so at the time to model is added to the NSPersistentStoreCoordinator.
>--
>
>-Ben
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