iPhone OS: Fetching a random entity instance using NSPredicate Nsfetchrequest and core data

Posted by nickthedude on Stack Overflow See other posts from Stack Overflow or by nickthedude
Published on 2010-05-13T21:42:42Z Indexed on 2010/05/13 21:44 UTC
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Filed under:

iphone

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core-data

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nspredicate

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nsfetchrequest

Working on an app where I have a large collections of managed objects against which I want to fetch a few random instances.

My question is, is there any way I can use NSPredicate and NSFetchRequest to return several objects at random.

I saw that you could actually add a NSFetchRequest into the entity using the data modeler, any way to do the random fetch using this?

Also what would be the best method for determining the "count" of a table so I can set the bounds of the random number generator.

let me know if you need more details.

Thanks!

Nick

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