Question

I have this code

class ObjectCreate(CreateView):

    def form_valid(self, form):

I want to know that is this form already bounded to object instance and i can use form.save or i have to bound it to model instance manually

Answer 1

Yes, the form in form_valid is bound.

You can see this by looking at the code for ProcessFormView.

def post(self, request, *args, **kwargs):
    form_class = self.get_form_class()
    form = self.get_form(form_class)
    if form.is_valid():
        return self.form_valid(form)

You can see that a bound form is instantiated by self.get_form(form_class), and the form_valid method is only called if the form is valid.

Note that the ModelFormMixin used by the CreateView saves the object by default — depending on what you are trying to do, you may not have to override form_valid.