Re: Dumb (?) subclass question

Yes, you probably did something wrong in setting up the subclass.  We 
will need more details (single table, vertical, horizontal inheritance) 
to discern why.  As a guess, you forgot the restricting qualifier.

If not that, then  perhaps you are manually adding a duplicate in your 
code though incorrect use of EOF?

Chuck


On Jan 6, 2005, at 5:08 PM, Thomas Ganter wrote:

> Hi all,
>
> I just spent four hours searching for a bug when I found a situation 
> in which a to-many relationship always contained duplicate elements.
> I always was under the impression that the array I get will contain 
> distinct rows and never checked for duplicates.
>
> Let's say there are two tables: HEAD and ITEM with a 1:n relationship.
>
> Whenever I say (HEAD)h.items(), I get four entries in the NSArray when 
> in the database there are only three.
>
> Could this be somehow due to the fact that i sublassed ITEM?
>
> If so, how can I prevent this behaviour?
>
> Greetings,
>
> - Thomas
>
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