From 56936c86ab90cf9a2d5f249a8a1fb5d44f0bcd38 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Norman=20J=C3=A4ckel?= <openslides@normanjaeckel.de>
Date: Mon, 7 Mar 2016 18:54:05 +0100
Subject: [PATCH] Used bulk_create to create the initial projector during
 migration. Fixed #2035.

---
 openslides/core/migrations/0001_initial.py | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/openslides/core/migrations/0001_initial.py b/openslides/core/migrations/0001_initial.py
index 6ffa3f415..e8092db39 100644
--- a/openslides/core/migrations/0001_initial.py
+++ b/openslides/core/migrations/0001_initial.py
@@ -2,7 +2,6 @@
 # Generated by Django 1.9.2 on 2016-03-02 01:22
 from __future__ import unicode_literals
 
-import json
 import uuid
 
 import django.db.models.deletion
@@ -13,15 +12,21 @@ from django.db import migrations, models
 import openslides.utils.models
 
 
-def add_default_projector_via_sql():
+def add_default_projector(apps, schema_editor):
     """
     Adds default projector and activates clock.
     """
+    # We get the model from the versioned app registry;
+    # if we directly import it, it will be the wrong version.
+    Projector = apps.get_model('core', 'Projector')
     projector_config = {}
     projector_config[uuid.uuid4().hex] = {
         'name': 'core/clock',
         'stable': True}
-    return ["INSERT INTO core_projector (config, scale, scroll) VALUES ('{}', 0, 0);".format(json.dumps(projector_config))]
+    # We use bulk_create here because we do not want model's save() method
+    # to be called because we do not want our autoupdate signals to be
+    # triggered.
+    Projector.objects.bulk_create([Projector(config=projector_config)])
 
 
 class Migration(migrations.Migration):
@@ -105,5 +110,5 @@ class Migration(migrations.Migration):
             },
             bases=(openslides.utils.models.RESTModelMixin, models.Model),
         ),
-        migrations.RunSQL(add_default_projector_via_sql()),
+        migrations.RunPython(add_default_projector),
     ]