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Re: Validating in Core Data

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Re: Validating in Core Data

Subject: Re: Validating in Core Data
From: Jim Correia <email@hidden>
Date: Tue, 9 Aug 2005 16:20:00 -0400

On Aug 9, 2005, at 4:14 PM, Jeff LaMarche wrote:

I've written a subclass of NSManagedObject, and have implemented a custom validation method for on attribute. I'm getting a EXC_BAD_ACCESS (SIGSEGV) when I try and save this field:

-(BOOL)validateUrl:(NSString *)urlString error:(NSError **)error


Your method declaration is wrong.

http://developer.apple.com/documentation/Cocoa/Conceptual/ KeyValueCoding/Concepts/Validation.html#//apple_ref/doc/uid/ 20002173-168285

urlString is passed by reference (so that you can return a substitute value if necessary), so it should be

-(BOOL)validateUrl:(NSString **)urlString error:(NSError **)error

with the appropriate related changes in the method body.

Jim
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  >Validating in Core Data (From: Jeff LaMarche <email@hidden>)




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