Fixed wrong ordering of agenda items after order change

Fixed #875

openslides/agenda/views.py

@@ -95,7 +95,6 @@ class Overview(TemplateView):
 
     @transaction.commit_manually
     def post(self, request, *args, **kwargs):
-        context = self.get_context_data(**kwargs)
         if not request.user.has_perm('agenda.can_manage_agenda'):
             messages.error(
                 request,
@@ -116,9 +115,11 @@ class Overview(TemplateView):
                 transaction.rollback()
                 messages.error(
                     request, _('Errors when reordering of the agenda'))
-                return self.render_to_response(context)
+                break
+        else:
             Item.objects.rebuild()
         # TODO: assure, that it is a valid tree
+        context = self.get_context_data(**kwargs)
         transaction.commit()
         return self.render_to_response(context)
 

tests/agenda/tests.py

@@ -198,6 +198,25 @@ class ViewTest(TestCase):
         response = c.get('/agenda/%s/' % item.id)
         self.assertContains(response, 'quai5OTeephaequ0xei0')
 
+    def test_change_item_order(self):
+        data = {
+            'i1-self': 1,
+            'i1-weight': 50,
+            'i1-parent': 0,
+            'i2-self': 2,
+            'i2-weight': 50,
+            'i2-parent': 1}
+        response = self.adminClient.post('/agenda/', data)
+
+        # Test values in response.
+        items = response.context['items']
+        self.assertIsNone(items[0].parent)
+        self.assertEqual(items[1].parent_id, 1)
+
+        # Test values in DB
+        self.assertIsNone(Item.objects.get(pk=1).parent)
+        self.assertEqual(Item.objects.get(pk=2).parent_id, 1)
+
 
 class ConfigTest(TestCase):
     def setUp(self):