From 70d7f49afe605e4d82fe7e5811616ebde33d17f2 Mon Sep 17 00:00:00 2001
From: FinnStutzenstein <finn.stutzenstein@hotmail.de>
Date: Mon, 25 Feb 2019 11:12:58 +0100
Subject: [PATCH] Fixed deletion of agenda items.

Introduced by #4352
---
 openslides/agenda/signals.py             |  2 +-
 tests/integration/agenda/test_viewset.py | 29 ++++++++++++++++++++++++
 2 files changed, 30 insertions(+), 1 deletion(-)

diff --git a/openslides/agenda/signals.py b/openslides/agenda/signals.py
index e18c4475d..a772b0dd8 100644
--- a/openslides/agenda/signals.py
+++ b/openslides/agenda/signals.py
@@ -37,7 +37,7 @@ def listen_to_related_object_post_delete(sender, instance, **kwargs):
     Receiver function to delete agenda items. It is connected to the signal
     django.db.models.signals.post_delete during app loading.
     """
-    if hasattr(instance, "get_agenda_title"):
+    if hasattr(instance, "get_agenda_title_information"):
         content_type = ContentType.objects.get_for_model(instance)
         try:
             # Attention: This delete() call is also necessary to remove
diff --git a/tests/integration/agenda/test_viewset.py b/tests/integration/agenda/test_viewset.py
index ee44730a6..fd7f3a98b 100644
--- a/tests/integration/agenda/test_viewset.py
+++ b/tests/integration/agenda/test_viewset.py
@@ -18,6 +18,35 @@ from openslides.utils.test import TestCase
 from ..helpers import count_queries
 
 
+class ContentObjects(TestCase):
+    """
+    Tests content objects with Topic as a content object.
+    Asserts, that it is recognizes as a content object and tests creation
+    and deletion of it and the related agenda item.
+    """
+
+    def setUp(self):
+        self.client = APIClient()
+        self.client.login(username="admin", password="admin")
+
+    def test_topic_is_content_object(self):
+        assert hasattr(Topic(), "get_agenda_title_information")
+
+    def test_create_content_object(self):
+        topic = Topic.objects.create(title="test_title_fk3Oc209JDiunw2!wwoH")
+
+        assert topic.agenda_item is not None
+        response = self.client.get(reverse("item-detail", args=[topic.agenda_item.pk]))
+        self.assertEqual(response.status_code, status.HTTP_200_OK)
+
+    def test_delete_content_object(self):
+        topic = Topic.objects.create(title="test_title_lwOCK32jZGFb37DpmoP(")
+        item_id = topic.agenda_item.id
+        topic.delete()
+        response = self.client.get(reverse("item-detail", args=[item_id]))
+        self.assertEqual(response.status_code, status.HTTP_404_NOT_FOUND)
+
+
 class RetrieveItem(TestCase):
     """
     Tests retrieving items.