Fixed broken uuid migration

api/funkwhale_api/music/migrations/0023_auto_20180407_1010.py

@@ -4,7 +4,6 @@ from django.conf import settings
 from django.db import migrations, models
 import django.db.models.deletion
 import django.utils.timezone
-import uuid
 
 
 class Migration(migrations.Migration):
@@ -18,17 +17,17 @@ class Migration(migrations.Migration):
         migrations.AddField(
             model_name='album',
             name='uuid',
-            field=models.UUIDField(db_index=True, default=uuid.uuid4, unique=True),
+            field=models.UUIDField(db_index=True, null=True, unique=True),
         ),
         migrations.AddField(
             model_name='artist',
             name='uuid',
-            field=models.UUIDField(db_index=True, default=uuid.uuid4, unique=True),
+            field=models.UUIDField(db_index=True, null=True, unique=True),
         ),
         migrations.AddField(
             model_name='importbatch',
             name='uuid',
-            field=models.UUIDField(db_index=True, default=uuid.uuid4, unique=True),
+            field=models.UUIDField(db_index=True, null=True, unique=True),
         ),
         migrations.AddField(
             model_name='importjob',
@@ -38,17 +37,17 @@ class Migration(migrations.Migration):
         migrations.AddField(
             model_name='importjob',
             name='uuid',
-            field=models.UUIDField(db_index=True, default=uuid.uuid4, unique=True),
+            field=models.UUIDField(db_index=True, null=True, unique=True),
         ),
         migrations.AddField(
             model_name='lyrics',
             name='uuid',
-            field=models.UUIDField(db_index=True, default=uuid.uuid4, unique=True),
+            field=models.UUIDField(db_index=True, null=True, unique=True),
         ),
         migrations.AddField(
             model_name='track',
             name='uuid',
-            field=models.UUIDField(db_index=True, default=uuid.uuid4, unique=True),
+            field=models.UUIDField(db_index=True, null=True, unique=True),
         ),
         migrations.AddField(
             model_name='trackfile',
@@ -68,12 +67,12 @@ class Migration(migrations.Migration):
         migrations.AddField(
             model_name='trackfile',
             name='uuid',
-            field=models.UUIDField(db_index=True, default=uuid.uuid4, unique=True),
+            field=models.UUIDField(db_index=True, null=True, unique=True),
         ),
         migrations.AddField(
             model_name='work',
             name='uuid',
-            field=models.UUIDField(db_index=True, default=uuid.uuid4, unique=True),
+            field=models.UUIDField(db_index=True, null=True, unique=True),
         ),
         migrations.AlterField(
             model_name='importbatch',

api/funkwhale_api/music/migrations/0024_populate_uuid.py

+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+import os
+import uuid
+from django.db import migrations, models
+
+
+def populate_uuids(apps, schema_editor):
+    models = [
+        'Album',
+        'Artist',
+        'Importbatch',
+        'Importjob',
+        'Lyrics',
+        'Track',
+        'Trackfile',
+        'Work',
+    ]
+    for m in models:
+        kls = apps.get_model('music', m)
+        qs = kls.objects.filter(uuid__isnull=True).only('id')
+        print('Setting uuids for {} ({} objects)'.format(m, len(qs)))
+        for o in qs:
+            o.uuid = uuid.uuid4()
+            o.save(update_fields=['uuid'])
+
+
+def rewind(apps, schema_editor):
+    pass
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('music', '0023_auto_20180407_1010'),
+    ]
+
+    operations = [
+        migrations.RunPython(populate_uuids, rewind),
+        migrations.AlterField(
+            model_name='album',
+            name='uuid',
+            field=models.UUIDField(db_index=True, default=uuid.uuid4, unique=True),
+        ),
+        migrations.AlterField(
+            model_name='artist',
+            name='uuid',
+            field=models.UUIDField(db_index=True, default=uuid.uuid4, unique=True),
+        ),
+        migrations.AlterField(
+            model_name='importbatch',
+            name='uuid',
+            field=models.UUIDField(db_index=True, default=uuid.uuid4, unique=True),
+        ),
+        migrations.AlterField(
+            model_name='importjob',
+            name='uuid',
+            field=models.UUIDField(db_index=True, default=uuid.uuid4, unique=True),
+        ),
+        migrations.AlterField(
+            model_name='lyrics',
+            name='uuid',
+            field=models.UUIDField(db_index=True, default=uuid.uuid4, unique=True),
+        ),
+        migrations.AlterField(
+            model_name='track',
+            name='uuid',
+            field=models.UUIDField(db_index=True, default=uuid.uuid4, unique=True),
+        ),
+        migrations.AlterField(
+            model_name='trackfile',
+            name='uuid',
+            field=models.UUIDField(db_index=True, default=uuid.uuid4, unique=True),
+        ),
+        migrations.AlterField(
+            model_name='work',
+            name='uuid',
+            field=models.UUIDField(db_index=True, default=uuid.uuid4, unique=True),
+        ),
+    ]