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