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Problem fetching subentities

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Problem fetching subentities

Subject: Problem fetching subentities
From: Eric Morand <email@hidden>
Date: Tue, 13 Jun 2006 15:16:59 +0200

Hi List,

I have a model which contains the following entities :

SmartGroup <- SystemSmartGroup

SystemSmartGroup is a subentity of SmartGroup. Each one has its own obj-c class.

When I want to fetch only SystemSmartGroup, the results also contain instances of SmartGroup.

Here is the code I use to fetch :


[...]

NSArray * results = nil; NSFetchRequest * fetchRequest = [[[NSFetchRequest alloc] init] autorelease]; NSEntityDescription * entityDescription = [NSEntityDescription entityForName:@"SystemSmartGroup" inManagedObjectContext:context]; // context is correctly defined

[fetchRequest setEntity:entityDescription];

results = [context executeFetchRequest:fetchRequest error:nil];

[...]

Is this the normal behavior ? If so, what am I supposed to do to retrieve only instances of SystemSmartGroup ?

Thanks,

Eric.
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