diff -r 23416a833ca8 -r f3875fbe206a server/python/django2/renkanmanager/migrations/0007_foreign_key_final.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/server/python/django2/renkanmanager/migrations/0007_foreign_key_final.py	Mon Jun 20 14:44:40 2016 +0200
@@ -0,0 +1,42 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.9.4 on 2016-06-17 09:50
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('renkanmanager', '0006_foreign_key_fields_migrate_data'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='renkan',
+            name='current_revision_guid',
+        ),
+        migrations.RemoveField(
+            model_name='renkan',
+            name='source_revision_guid',
+        ),
+        migrations.RemoveField(
+            model_name='renkan',
+            name='workspace_guid',
+        ),
+        migrations.RemoveField(
+            model_name='revision',
+            name='parent_renkan_guid',
+        ),
+        migrations.AlterField(
+            model_name='renkan',
+            name='workspace',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, related_name='renkans', to='renkanmanager.Workspace'),
+        ),
+        migrations.AlterField(
+            model_name='revision',
+            name='parent_renkan',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='revisions', to='renkanmanager.Renkan'),
+        ),
+    ]