diff -r b5daed0ce08b -r 4f07ad576fee src/ldtplatform/management/commands/migrate18.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/ldtplatform/management/commands/migrate18.py	Tue May 12 14:57:27 2015 +0200
@@ -0,0 +1,31 @@
+from django.core.management.base import NoArgsCommand
+from django.db import connection
+from django.core.management import call_command
+from django.contrib.contenttypes.models import ContentType
+
+class Command(NoArgsCommand):
+    help = "Migrate existing database to Django 1.8"
+
+    def handle_noargs(self, **options):
+        # delete tables
+        cursor = connection.cursor()
+        for tname in [ "jogging_log", "auth_message",
+                      "django_openid_consumer_association",
+                      "django_openid_consumer_nonce",
+                      "piston_consumer", "piston_nonce",
+                      "piston_resource", "piston_token",
+                      "south_migrationhistory", "social_auth_nonce",
+                      "social_auth_association", "social_auth_usersocialauth"]:
+            cursor.execute("DROP TABLE IF EXISTS \"%s\" CASCADE;" % tname)
+        
+        call_command('migrate', 'contenttypes', fake_initial=True, interactive=False)
+        call_command('migrate', 'auth', fake_initial=True, interactive=False)
+        call_command('migrate', 'user', fake_initial=True, interactive=False)
+        call_command('migrate', 'default', interactive=False)
+        call_command('migrate', 'oauth_provider', fake=True, interactive=False)
+        call_command('migrate', fake_initial=True, interactive=False)
+        
+        
+        ContentType.objects.filter(app_label="auth", model="user").delete()
+        ContentType.objects.filter(app_label="user", model="userprofile").delete()
+        ContentType.objects.filter(app_label="user", model="ldt").delete()