I've just stumbled upon the same problem in my code. I have no clue on
why it happened either. Did you ever get any progress on investigating
this issue?
Regards,
Joao
On Oct 7, 12:31 pm, Torsten Bronger <bron...@physik.rwth-aachen.de>
wrote:
> Hall chen!
>
> I examine a traceback that ends with
>
> ...
>
> File "/usr/lib/python2.6/dist-packages/django/db/models/query.py", line
> 351,
> in get
> % (self.model._meta.object_name, num, kwargs))
>
> TypeError: 'DoesNotExist'objectisnotcallable
>
> The error-triggering source code in query.py says
>
> def get(self, *args, **kwargs):
> """
> Performs the query and returns a singleobjectmatching the given
> keyword arguments.
> """
> clone = self.filter(*args, **kwargs)
> if self.query.can_filter():
> clone = clone.order_by()
> num = len(clone)
> if num == 1:
> return clone._result_cache[0]
> ifnotnum:
> raise self.model.DoesNotExist("%s matching query doesnotexist."
> % self.model._meta.object_name)
> raise self.model.MultipleObjectsReturned("get() returned more than
> one %s -- it returned %s! Lookup parameters were %s"
> % (self.model._meta.object_name, num, kwargs))
>
> The last line triggers the error. This is strange for two reasons:
> First,DoesNotExistshould becallablefor all models. And
> secondly, there is noDoesNotExistin the last line but a
> MultipleObjectsReturned.
>
> My source code that is responsible for the error is:
>
> try:
> sample = self.samples.get() # Here, the TypeError occurs
> except (Sample.DoesNotExist, Sample.MultipleObjectsReturned):
> pass
>
> "self" is a model instance. "samples" is a M2M field of "self" to
> the class "Sample". In my case, ther are 20 samples connected with
> the "self" instances, so raising a MultipleObjectsReturned would be
> correct.
>
> Does anybody have an idea what is going on here? How should I
> proceed with debugging?
>
> Tsch ,
> Torsten.
>
> --
> Torsten Bronger Jabber ID: torsten.bron...@jabber.rwth-aachen.de
> orhttp://bronger-jmp.appspot.com
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