Basically, I have a model, a ModelForm, and an UpdateView. I go to the
UpdateView (viewing a current customer) and just hit the submit button
(changing no data). What results is an error from the model: *Cannot assign
None: "Customer.store" does not allow null values.* (*I do not have a field
on the template for setting store, this should be handled and set to the
users actie store*) This error sounds like it is from the model being
saved, which would mean that the form was valid (right?) Well I have tried
using things like *if form.is_valid()* and *def form_valid(self, form):* but
neither of those blocks of code ever execute. Out of desperation, I
overrode the post method on the view, and made a form object, and passed it
the instance and data. The page still returns the same error about
Customer.store does not allow null values, But *if form.is_valid()* is in
the error traceback.
Any help would be amazing!
*models.py*
class Customer(models.Model):
# Some fields that are not relevent
store = models.ForeignKey(Store, blank=True)
*forms.py*
class CustomerInformationForm(forms.ModelForm):
class Meta:
model = Customer
*views.py*
class CustomerInformationView(UpdateView):
template_name = "customers/customer_information.html
model = Customer
form_class = CustomerInformationForm
def form_valid(self, form):
customer = form.save(commit=False)
customer.store = self.request.user.active_profile.store
customer.save()
return super(CustomerInformationView, self).save(form)
def get_object(self, *args, **kwargs):
return Customer.objects.get(number=self.kwargs.get('customer_number'))
Environment:
Request Method: POST
Django Version: 1.5.1
Python Version: 2.7.5
Installed Applications:
('django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.sites',
'django.contrib.messages',
'django.contrib.staticfiles',
'django.contrib.admin',
'mercury.core',
'mercury.stores',
'mercury.customers',
'mercury.profiles',
'django.contrib.admin',
'south',
'debug_toolbar')
Installed Middleware:
('django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.locale.LocaleMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'debug_toolbar.middleware.DebugToolbarMiddleware',
'mercury.profiles.middleware.ActiveProfileMiddleware')
Traceback:
File
"/Users/jacobvalenta/.virtualenvs/mercury/lib/python2.7/site-packages/django/core/handlers/base.py"
in get_response
115. response = callback(request, *callback_args,
**callback_kwargs)
File
"/Users/jacobvalenta/.virtualenvs/mercury/lib/python2.7/site-packages/django/views/generic/base.py"
in view
68. return self.dispatch(request, *args, **kwargs)
File
"/Users/jacobvalenta/.virtualenvs/mercury/lib/python2.7/site-packages/django/views/generic/base.py"
in dispatch
86. return handler(request, *args, **kwargs)
File
"/Users/jacobvalenta/.virtualenvs/mercury/lib/python2.7/site-packages/django/views/generic/edit.py"
in post
222. return super(BaseUpdateView, self).post(request, *args,
**kwargs)
File
"/Users/jacobvalenta/.virtualenvs/mercury/lib/python2.7/site-packages/django/views/generic/edit.py"
in post
164. if form.is_valid():
File
"/Users/jacobvalenta/.virtualenvs/mercury/lib/python2.7/site-packages/django/forms/forms.py"
in is_valid
126. return self.is_bound and not bool(self.errors)
File
"/Users/jacobvalenta/.virtualenvs/mercury/lib/python2.7/site-packages/django/forms/forms.py"
in _get_errors
117. self.full_clean()
File
"/Users/jacobvalenta/.virtualenvs/mercury/lib/python2.7/site-packages/django/forms/forms.py"
in full_clean
274. self._post_clean()
File
"/Users/jacobvalenta/.virtualenvs/mercury/lib/python2.7/site-packages/django/forms/models.py"
in _post_clean
315. self.instance = construct_instance(self, self.instance,
opts.fields, opts.exclude)
File
"/Users/jacobvalenta/.virtualenvs/mercury/lib/python2.7/site-packages/django/forms/models.py"
in construct_instance
52. f.save_form_data(instance, cleaned_data[f.name])
File
"/Users/jacobvalenta/.virtualenvs/mercury/lib/python2.7/site-packages/django/db/models/fields/__init__.py"
in save_form_data
466. setattr(instance, self.name, data)
File
"/Users/jacobvalenta/.virtualenvs/mercury/lib/python2.7/site-packages/django/db/models/fields/related.py"
in __set__
401. (instance._meta.object_name,
self.field.name))
Exception Type: ValueError at /customers/1
Exception Value: Cannot assign None: "Customer.store" does not allow null
values.
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