Add regression test for case where internal create channel method tri…

…ggers undeletion.

Fix error.

contentcuration/contentcuration/tests/views/test_views_internal.py

@@ -777,6 +777,23 @@ def test_creates_channel(self):
         except Channel.DoesNotExist:
             self.fail("Channel was not created")
 
+    def test_updates_already_created_channel(self):
+        """
+        Test that it creates a channel with the given id
+        """
+        deleted_channel = channel()
+        deleted_channel.deleted = True
+        deleted_channel.save(actor_id=self.user.id)
+        self.channel_data.update({"name": "Updated name", "id": deleted_channel.id})
+        self.admin_client().post(
+            reverse_lazy("api_create_channel"), data={"channel_data": self.channel_data}, format="json"
+        )
+        try:
+            c = Channel.objects.get(id=self.channel_data["id"])
+            self.assertEqual(c.name, "Updated name")
+        except Channel.DoesNotExist:
+            self.fail("Channel was not created")
+
     def test_creates_cheftree(self):
         """
         Test that it creates a channel with the given id

contentcuration/contentcuration/views/internal.py

@@ -519,7 +519,9 @@ def create_channel(channel_data, user):
     if files:
         map_files_to_node(user, channel.chef_tree, files)
     channel.chef_tree.save()
-    channel.save()
+    # If the channel was previously deleted, this save will undelete it
+    # so will require the actor_id to be set
+    channel.save(actor_id=user.id)
 
     # Delete chef tree if it already exists
     if old_chef_tree and old_chef_tree != channel.staging_tree: