Was your mod_python setup using single threaded prefork? Is your
mod_wsgi setup also using single threaded prefork, or have you moved
to using multithread worker MPM and/or multithreaded daemon processes?
Maybe you are seeing a multithreading issue.
Graham
On Jun 29, 8:13 pm, Julien <[EMAIL PROTECTED]> wrote:
> Ok, thanks.
> I too found strange that it could be related. But the problem only
> appeared on the production server just after we switched tomod_wsgi.
> I'll investigate a bit further and post here if I can fix it.
>
> On Jun 29, 6:23 pm, Alex Koshelev <[EMAIL PROTECTED]> wrote:
>
> > `unique_together` is a database level feature so it cannot depend on
> > web-server and its modules.
> > When you don't give any code to see where you add new entry and
> > retrieve.
>
> > On Jun 29, 10:32 am, Julien <[EMAIL PROTECTED]> wrote:
>
> > > Hi,
>
> > > Since I switched my site from mod_python tomod_wsgi, the meta
> > > attribute 'unique_together' stopped working properly. When creating a
> > > duplicate entry, instead of getting the error message "Entry with this
> > > date already exists for the given slug." I get an exception:
>
> > > "MultipleObjectsReturned: get() returned more than one Entry-- it
> > > returned 2! Lookup parameters were {'date__iexact': u'2008-06-04',
> > > 'slug__iexact': u'example-title'}"
>
> > > (Full traceback given below.)
>
> > > Also, some duplicates have slipped through when entries have been
> > > added by the administrators of the site. So, apparently, that
> > > exception is not always raised or at least it fails silently.
>
> > > It works fine on the development server which runs with mod_python....
>
> > > Has someone got similar issues, and would you see what I'm missing
> > > here?
>
> > > Thanks a lot!
>
> > > Julien
>
> > > PS: Traceback:
>
> > > File "/MY_PATH/django/core/handlers/base.py", line 82, in
> > > get_response
> > > response = callback(request, *callback_args, **callback_kwargs)
>
> > > File "/MY_PATH/django/contrib/admin/views/decorators.py", line 62, in
> > > _checklogin
> > > return view_func(request, *args, **kwargs)
>
> > > File "/MY_PATH/django/views/decorators/cache.py", line 44, in
> > > _wrapped_view_func
> > > response = view_func(request, *args, **kwargs)
>
> > > File "/MY_PATH/django/contrib/admin/views/main.py", line 334, in
> > > change_stage
> > > errors = manipulator.get_validation_errors(new_data)
>
> > > File "/MY_PATH/django/oldforms/__init__.py", line 62, in
> > > get_validation_errors
> > > errors.update(field.get_validation_errors(new_data))
>
> > > File "/MY_PATH/django/oldforms/__init__.py", line 379, in
> > > get_validation_errors
> > > self.run_validator(new_data, validator)
>
> > > File "/MY_PATH/django/oldforms/__init__.py", line 369, in
> > > run_validator
> > > validator(new_data.get(self.field_name, ''), new_data)
>
> > > File "/MY_PATH/django/utils/functional.py", line 55, in _curried
> > > return _curried_func(*(args+moreargs), **dict(kwargs,
> > > **morekwargs))
>
> > > File "/MY_PATH/django/db/models/manipulators.py", line 302, in
> > > manipulator_validator_unique_together
> > > old_obj = self.manager.get(**kwargs)
>
> > > File "/MY_PATH/django/db/models/manager.py", line 82, in get
> > > return self.get_query_set().get(*args, **kwargs)
>
> > > File "/MY_PATH/django/db/models/query.py", line 199, in get
> > > % (self.model._meta.object_name, num, kwargs))
>
> > > MultipleObjectsReturned: get() returned more than one Entry-- it
> > > returned 2! Lookup parameters were {'date__iexact': u'2008-06-04',
> > > 'slug__iexact': u'example-title'}
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