title: Save a formset of custom forms django
body: <p>I am trying to save a formset in django.
  To do so I have my model and a customized form.
  Then I create my formset this way :</p>
  
  <pre><code>QuoteFormSet = formset_factory(QuoteForm, extra=2)
  formset = QuoteFormset(request.POST)
  </code></pre>
  
  <p>But when I do formset.save() i get <code>AttributeError: 'QuoteFormFormSet' object has no attribute 'save'</code></p>
  
  <p>my model : </p>
  
  <pre><code>class Quote(models.Model):
      country = models.CharField(max_length=2,)
      street = models.CharField(max_length=100,)
  </code></pre>
  
  <p>My form:</p>
  
  <pre><code>class QuoteForm(forms.ModelForm):
      class Meta:
          model = Quote
      country = forms.ChoiceField(choices=COUNTRIES, required=False)
      street = forms.CharField(max_length=100, required=False)
  </code></pre>