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Re: Custom alerts for Core Data validation errors ... how to?
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Re: Custom alerts for Core Data validation errors ... how to?


  • Subject: Re: Custom alerts for Core Data validation errors ... how to?
  • From: Chris Hanson <email@hidden>
  • Date: Fri, 30 Nov 2007 12:47:25 -0800

On Nov 30, 2007, at 12:30 PM, Richard Wolf wrote:

But what I can't find is a way to do this:

BOOL result = [*ioValue matchesRegularExpression:@"[A-Z0-9]{32,32}"];

NSPredicate has a matches-regular-expression operator.

That's how the validation conditions you define in your model are actually represented at runtime; see the documentation for NSPropertyDescription's validationPredicates property.

  -- Chris

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  • Follow-Ups:
    • Re: Custom alerts for Core Data validation errors ... how to?
      • From: Richard Wolf <email@hidden>
References: 
 >Custom alerts for Core Data validation errors ... how to? (From: Richard Wolf <email@hidden>)
 >Re: Custom alerts for Core Data validation errors ... how to? (From: mmalc crawford <email@hidden>)
 >Re: Custom alerts for Core Data validation errors ... how to? (From: Richard Wolf <email@hidden>)

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