diff -r e00a24b711a0 -r 23416a833ca8 server/python/django2/renkanmanager/migrations/0004_foreign_key_fields_initial.py
--- a/server/python/django2/renkanmanager/migrations/0004_foreign_key_fields_initial.py	Mon Jun 13 14:23:58 2016 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,43 +0,0 @@
-# -*- coding: utf-8 -*-
-# Generated by Django 1.9.1 on 2016-04-19 10:08
-from __future__ import unicode_literals
-
-from django.db import migrations, models
-import django.db.models.deletion
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('renkanmanager', '0003_auto_20160105_0954'),
-    ]
-
-    operations = [
-        migrations.AlterModelOptions(
-            name='renkan',
-            options={'permissions': (('view_renkan', 'Can view renkan'),)},
-        ),
-        migrations.AlterModelOptions(
-            name='revision',
-            options={'permissions': (('view_revision', 'Can view revision'),)},
-        ),
-        migrations.AlterModelOptions(
-            name='workspace',
-            options={'permissions': (('view_workspace', 'Can view workspace'),)},
-        ),
-        migrations.AddField(
-            model_name='renkan',
-            name='source_revision',
-            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='renkan_source_revision', to='renkanmanager.Revision', to_field='revision_guid'),
-        ),
-        migrations.AddField(
-            model_name='renkan',
-            name='workspace',
-            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, to='renkanmanager.Workspace', to_field='workspace_guid'),
-        ),
-        migrations.AddField(
-            model_name='revision',
-            name='parent_renkan',
-            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, to='renkanmanager.Renkan', to_field='renkan_guid'),
-        ),
-    ]