def METHOD_NAME(self, form, choice_form):
    """
    Called if all forms are valid, Creates Poll instance along with the associated Choice
    instances, then redirects to success url.
    Args:
        form: Poll Form
        choice_form: Choice Form
    Returns: an HttpResponse to success url
    """
    # Save poll object from form and assign it to self.object
    self.object = form.save(commit=False)
    # Pre-processing for Poll instance here ...
    self.object.publication_date = datetime.now()
    self.object.is_user_poll = True
    self.object.is_current = False
    if not self.object.created_by and self.user is not None:
        self.object.created_by = self.user
    self.object.save()
    # Saving Choice instances
    choices = choice_form.save(commit=False)
    for ch in choices:
        ch.poll = self.object
        ch.save()
    return HttpResponseRedirect(self.get_success_url())