get_or_create shouldn't give duplicate entry error
anyone help.
On 2012/10/13, at 11:06, Wei Wei wrote:
> I am new to Django. But does the error message literally mean you have
> duplicated records against your unique_together constriction?
>
> On Sat, Oct 13, 2012 at 9:47 AM, Zheng Li <dllizh...@gmail.com> wrote:
> class AB(models.Model):
> a = models.ForeignKey(A)
> b = models.ForeignKey(B)
> c = models.IntegerField(default=0)
> d = models.FloatField(default=0)
> e = models.IntegerField(default=0)
> f = models.FloatField(default=0)
> class Meta:
> unique_together = (('a', 'b'),)
>
> I have a class like above.
> when I call get_or_create, sometimes IntegrityError: (1062, "Duplicate entry)
> error happens.
> a, _ = AB.objects.get_or_create(a=a, b=b)
>
> I really have googled and worked on it for a while, but still nothing.
> anyone can help?
> Thanks in advance.
>
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