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Predicate on an ArrayController updated automatically?

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Predicate on an ArrayController updated automatically?

Subject: Predicate on an ArrayController updated automatically?
From: Alexander Lamb <email@hidden>
Date: Tue, 31 Oct 2006 16:58:23 +0100

Hello list,

I have an ArrayController filled with objects (CoreData app, ArrayController using entity).

I now need another ArrayController which is a subset of this first one. The subset is defined by an attribute of the objects in the first ArrayController.

I thought:

- create a new ArrayController - bind the content array to the first controller - add a predicate in the Attributes of the sub ArrayController (the predicate is myBoolVariable != 0 ) (to say all the objects where myBoolVariable is YES)

Problems:

- I get the complete list, even the predicate is not applied - How can I register for updates to make sure if any of the myBoolVariable changes the predicate is recalculated

Thanks!

Alex
--
Alexander Lamb
email@hidden

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