Fix delete of assignments with related agenda items.

openslides/assignment/models.py

@@ -207,12 +207,6 @@ class Assignment(models.Model, SlideMixin):
     def get_agenda_title(self):
         return self.name
 
-    def delete(self):
-        # Remove any Agenda-Item, which is related to this assignment.
-        for item in Item.objects.filter(related_sid=self.sid):
-            item.delete()
-        super(Assignment, self).delete()
-
     def slide(self):
         """
         return the slide dict

tests/assignment/test_models.py

@@ -0,0 +1,32 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+"""
+    Tests for openslides.assignment.models
+    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+    :copyright: 2011–2013 by OpenSlides team, see AUTHORS.
+    :license: GNU GPL, see LICENSE for more details.
+"""
+
+from django.test.client import Client
+
+from openslides.utils.test import TestCase
+from openslides.agenda.models import Item
+from openslides.assignment.models import Assignment
+from openslides.participant.models import User
+
+
+class AssignmentModelTest(TestCase):
+    def setUp(self):
+        # Admin
+        self.admin = User.objects.get(pk=1)
+        self.admin_client = Client()
+        self.admin_client.login(username='admin', password='admin')
+
+    def test_delete_with_related_item(self):
+        assignment = Assignment.objects.create(name='assignment_name_fgdhensbch34zfu1284ds', posts=1)
+        response = self.admin_client.get('/assignment/1/agenda/')
+        self.assertRedirects(response, '/agenda/')
+        self.assertEqual(Item.objects.get(pk=1).get_title(), 'assignment_name_fgdhensbch34zfu1284ds')
+        assignment.delete()
+        self.assertTrue(Item.objects.filter(pk=1).exists())