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Bindings / Core Data: Ensuring a value is unique

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Bindings / Core Data: Ensuring a value is unique

Subject: Bindings / Core Data: Ensuring a value is unique
From: Chris Blunt <email@hidden>
Date: Thu, 14 Sep 2006 11:25:56 +0100

Hi,

Could anyone let me know if there is an elegant way to ensure when a value is assigned to an NSManagedObject, that value is unique? Is there a method to ensure that entries are unique, or should my controller manually check? If this is the case, where should I put this check code to allow the controller to 'deny' the change?

I'm trying to learn the most elegant, 'Cocoa-friendly' solutions to my problems, and can't find an answer to this one! Appreciate any help or pointers in the right direction!

Thanks,
Chris
--
www.chrisblunt.com
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