StringProperty errors in ModelForm

[tonjo]

I have a very simple ModelForm subclass:

class UserPrefsForm(forms.ModelForm):
    class Meta:
        model = User
        fields = ['first_name','last_name','username']

When I try to save the form in my view (only the post function here):

def post(self, request):
    userform =  UserPrefsForm(request.POST)
    context = self.get_context_data()
    if userform.is_valid():
        userform.save()
    else:
        context['errors'] = True
    return render(request,self.template_name,context)

I got this error:

AttributeError at /prefs
'super' object has no attribute 'error_messages'

Traceback:
File "/home/tonjo/venv/tuned/local/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response
115.                         response = callback(request, *callback_args, **callback_kwargs)
File "/home/tonjo/venv/tuned/local/lib/python2.7/site-packages/django/views/generic/base.py" in view
  68.             return self.dispatch(request, *args, **kwargs)
File "/home/tonjo/venv/tuned/local/lib/python2.7/site-packages/braces/views.py" in dispatch
  107.             request, *args, **kwargs)
File "/home/tonjo/venv/tuned/local/lib/python2.7/site-packages/django/views/generic/base.py" in dispatch
  86.         return handler(request, *args, **kwargs)
File "/home/tonjo/prj/tuned_prj/tuned_django/graph/views.py" in post
   147.         if userform.is_valid():
File "/home/tonjo/venv/tuned/local/lib/python2.7/site-packages/django/forms/forms.py" in is_valid
  126.         return self.is_bound and not bool(self.errors)
File "/home/tonjo/venv/tuned/local/lib/python2.7/site-packages/django/forms/forms.py" in _get_errors
  117.             self.full_clean()
File "/home/tonjo/venv/tuned/local/lib/python2.7/site-packages/django/forms/forms.py" in full_clean
  274.         self._post_clean()
File "/home/tonjo/venv/tuned/local/lib/python2.7/site-packages/django/forms/models.py" in _post_clean
  344.             self.validate_unique() 
File "/home/tonjo/venv/tuned/local/lib/python2.7/site-packages/django/forms/models.py" in validate_unique
  353.             self.instance.validate_unique(exclude=exclude)
File "/home/tonjo/venv/tuned/local/lib/python2.7/site-packages/django/db/models/base.py" in validate_unique
  731.         errors = self._perform_unique_checks(unique_checks)
File "/home/tonjo/venv/tuned/local/lib/python2.7/site-packages/django/db/models/base.py" in _perform_unique_checks
 831.                 errors.setdefault(key, []).append(self.unique_error_message(model_class, unique_check))
File "/home/tonjo/venv/tuned/local/lib/python2.7/site-packages/django/db/models/base.py" in unique_error_message
 882.             return field.error_messages['unique'] % {
File "/home/tonjo/venv/tuned/src/neo4django/neo4django/utils.py" in __getattr__
  303.         return getattr(target, name)

Tested with regular non-neo4django models and everything is fine.

Asked also a stackoverflow question.

[tonjo]

As a workaround, I had to implement some kind of ModelForm myself.
Too hard for me to determine where the error is.

[Alex Mazure]

I got this error when I created a ModelForm object with data that violated the unique constraint of a model field. Neo4django tries to get the correct error message for violating that constraint, but the corresponding entry does not exist in properties.Property.default_error_messages (properties.py line 42).

I know this is an old issue and I'm sure you moved on, but someone else might find this useful. Someone might also want to add 'unique' to Property.default_error_messages.

[tonjo]

Thus is really a good "news" (even if dated a couple of months ago).
That project is quite sleeping, but I surely needed this, thanks.