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Re: -[NSManagedObjectContext save:] fails but gives no NSError

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Re: -[NSManagedObjectContext save:] fails but gives no NSError

Subject: Re: -[NSManagedObjectContext save:] fails but gives no NSError
From: Jerry Krinock <email@hidden>
Date: Tue, 4 Dec 2007 17:22:28 -0800


On 2007 Nov, 23, at 22:38, Chris Hanson wrote:

Is there any chance you can do a diff between what you have in your SCM system and what you have now, that works, and file a bug describing what you were doing previously?


Well, chief, fortunately I didn't have to do that.

The problem was that I had implemented validateForInsert: (NSError**)error. I was returning NO, but ^I^ was not setting that NSError. When I did, I then got it back in save:, as expected.

Apparently, if -validateForInsert: returns NO, save: simply passes on whatever error it gets, or doesn't get. Not ideal behavior, but not a bug. Something like, "You didn't give me an error in - validateForInsert:, Stupid" would be better.

Thanks,

Jerry
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