diff -r e00a24b711a0 -r 23416a833ca8 server/python/django2/renkanmanager/migrations/0005_foreign_key_fields_datamigration.py
--- a/server/python/django2/renkanmanager/migrations/0005_foreign_key_fields_datamigration.py	Mon Jun 13 14:23:58 2016 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,36 +0,0 @@
-# -*- coding: utf-8 -*-
-# Generated by Django 1.9.1 on 2016-04-14 12:23
-from __future__ import unicode_literals
-
-from django.db import migrations
-
-
-def populate_foreign_keys(apps, schema_editor):
-    renkans = apps.get_model('renkanmanager', 'Renkan')
-    revisions = apps.get_model('renkanmanager', 'Revision')
-    workspaces = apps.get_model('renkanmanager', 'Workspace')
-    for renkan in renkans.objects.all():
-        current_revision_for_renkan = revisions.objects.get(revision_guid=renkan.current_revision_guid)
-        renkan.current_revision = current_revision_for_renkan
-        if renkan.source_revision_guid:
-            current_source_for_renkan = revisions.objects.get(revision_guid=renkan.source_revision_guid)
-            renkan.source_revision = current_source_for_renkan
-        if renkan.workspace_guid:
-            workspace_for_renkan = revisions.objects.get(revision_guid=renkan.workspace_guid)
-            renkan.workspace = workspace_for_renkan
-        renkan.save()
-    for revision in revisions.objects.all():
-        parent_renkan_for_revision = renkans.objects.get(renkan_guid=revision.parent_renkan_guid)
-        revision.parent_renkan = parent_renkan_for_revision
-        revision.save()
-            
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('renkanmanager', '0004_foreign_key_fields_initial'),
-    ]
-
-    operations = [
-        migrations.RunPython(populate_foreign_keys)
-    ]