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Re: Here's one newbie trap to avoid

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Re: Here's one newbie trap to avoid

Subject: Re: Here's one newbie trap to avoid
From: Chuck Hill <email@hidden>
Date: Fri, 26 Jan 2007 16:36:06 -0800

All of the EOUtilities.objectsWith (note plural objects) don't throw an exception if zero rows are returned. This is documented in the API and seems like the correct behavior to me.

The exception that it is throwing if it can't find the fetch spec does seem like a bug.


Chuck

On Jan 26, 2007, at 4:29 PM, Scott Winn wrote:

EOUtilities.objectWithFetchSpecificationAndBindings throws EOObjectNotAvailableException - if there is no matching object, so far so good.

You do a fetch with no results and get an EOObjectNotAvailableException. But watch out for. . .

EOUtilities.objectsWithFetchSpecificationAndBindings it throws EOObjectNotAvailableException, but only if it can't find the fetch specification.

If you are used to the way object (singular) WithFetchSpecAndBindings behaves you are out of luck with this one. You do a fetch with no results and get no exception. You may have been expecting an EOObjectNotAvailableException, but you are never going to get it. Why didn't someone come up with an EONoFetchSpec exception instead? What does objectWithFetchSpecificationAndBindings throw if it can't find the fetch spec? Anything?

It's so subtle it is almost evil. Just glad I didn't waste too much time with it. One more newbie trap to avoid, but at least it is in the documentation.

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Re: Here's one newbie trap to avoid
From: Scott Winn <email@hidden>
Re: Here's one newbie trap to avoid
From: Clark Mueller <email@hidden>


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  >Here's one newbie trap to avoid (From: Scott Winn <email@hidden>)




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