title: Get Primary Key after Saving a ModelForm in Django
body: <p>How do I get the primary key after saving a ModelForm? After the form has been validated and saved, I would like to redirect the user to the contact_details view which requires the primary key of the contact. </p>
  
  <pre><code>def contact_create(request):
      if request.method == 'POST':
          form = ContactForm(request.POST)
          if form.is_valid():
              form.save()
              return HttpResponseRedirect(reverse(contact_details, args=(form.pk,)))
      else:
          form = ContactForm()
  </code></pre>