If you are using NewForms, you should implement this in the clean()
method for a field.  See the newforms docs and unit tests for more
details.

On Jul 16, 4:49 pm, "[EMAIL PROTECTED]" <[EMAIL PROTECTED]>
wrote:
> OK, fixed the above problem -- figured out that it was related to my
> setting unique=True on a field. But that raises the larger question...
>
> I have a bit of data that may or may not exist... a identifier on the
> user that not all users will have, but if they DO have it, it needs to
> be unique to that user. Apparently, unique=True isn't what I want,
> because the second user without it throws the above duplicate entry
> error, so how do I handle that?


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