On 5/1/07, Brandon Low <[EMAIL PROTECTED]> wrote:
>
> my model is very simple:
>
> class Referrer(models.Model):
> url = models.CharField(maxlength=255, unique=True)
>
> here is the relevent view code:
>
> referrer = request.META.get('HTTP_REFERER','-')
> r, r_new = Referrer.objects.get_or_create(url=referrer)
The only other option I can think of is that you are using a MySQL
storage engine that doesn't support transactions (or running in
autocommit mode) and so you are getting a sort of race condition
where two requests come in about the same time, both do a SELECT and
see there is no matching row, and one gets it INSERTed first. Normally
I would expect to see the IntegrityError at the commit phase.
--
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