Django HiddenInput user against saving directly in views using classes

Please, this is a matter of consideration. Maybe someone will use one of the below.

I have a couple of models that contain a box ForeignKey(User). My class-based views are based on common ones CreateView.

There are two options for saving the associated user when adding a new object:

• Saving a form in views by overriding a method form_valid; this does not disclose user_id(and other data not mentioned here that should not be displayed)

  class CreateOfferView(CreateView):
  
      model = Offer
      form_class = SomeModelFormWithUserFieldExcluded
  
      def form_valid(self, form):
          instance = form.save(commit=False)
          instance.user = self.request.user
          instance.save()
  

• , ( ) . . ... ( ) , . OwnFormMixin

  class OwnFormMixin(object):
  
      def get_form(self, form_class):
          form = super(OwnFormMixin, self).get_form(form_class)
          form.fields['user'].widget = forms.HiddenInput()
  
      def get_initial(self):
          initial = super(OwnFormMixin, self).get_initial()
          initial['user'] = self.request.user.pk
          #I could also do this in get_form() with form.fields['user'].initial
  
  class CreateOfferView(OwnFormMixin, CreateView):
      model = Offer
      form_class = SomeModelFormWithAllFields
  

CreateXXXView OwnFormMixin..

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