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-[NSPredicate evaluateWithObject:] and NSArray

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-[NSPredicate evaluateWithObject:] and NSArray

Subject: -[NSPredicate evaluateWithObject:] and NSArray
From: Nick Zitzmann <email@hidden>
Date: Wed, 13 Jun 2007 18:06:40 -0600

Since the list archives appear to be down, and I'm not getting anything useful out of Google...

I have a KVC-compliant object. The value for key kMDItemContactKeywords is a multi-value, so -valueForKey: returns an array of objects. I have a predicate that is normally used for Spotlight searching, and I want to see if individual objects match the predicate, but -evaluateWithObject: seems to raise exceptions when trying to parse an NSArray, whereas NSMetadataQuery handles the situation correctly.

Is there any sort of workaround to this problem, and if so, then what do I do to get multi-values to work correctly with -[NSPredicate evaluateWithObject:]?

If it helps, the precise predicate is "kMDItemContactKeywords LIKE '*SomeValue*'".

Nick Zitzmann
<http://www.chronosnet.com/>


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