title: django-admin: How to redirect to another URL after Object save?
body: <p>In Django Admin, saving an Object always goes back to it's List of Objects.
  Now i want to go to the List of Invoice-Objects upon saving a Payment-Object.</p>
  
  <p><strong>I tried several things:</strong></p>
  
  <p>In admin.py:</p>
  
  <pre><code>@receiver(post_save, sender=Payment)
  def custom_redirect(sender, instance, **kwargs):
      return HttpResponseRedirect('/admin/sales/invoice')
  </code></pre>
  
  <p>OR</p>
  
  <pre><code>class PaymentAdmin(VersionAdmin, admin.ModelAdmin):
      def change_view(self, request, object_id, extra_context=None):
          return HttpResponseRedirect('/admin/sales/invoice')
  </code></pre>
  
  <p>Instead of HttpResponseRedirect i tried using redirect() , but also with no effect.
  On inserting wrong code into post_save i get an error message - so it does get triggered, but the redirect does not happen.</p>
  
  <p>Any hints would be very apreciated - as i'm stuck for days on this "simple" problem.</p>
  
  <p>Thanks</p>