Migrate private versions

This only affects the community site.

readthedocs/builds/migrations/0025_migrate_private_versions.py

@@ -0,0 +1,34 @@
+# Generated by Django 2.2.12 on 2020-06-11 01:14
+
+from django.db import migrations
+from django.conf import settings
+
+
+def forwards_func(apps, schema_editor):
+    """
+    Migrate all private versions to public and hidden.
+
+    .. note::
+
+       This migration is skipped for the corporate site.
+    """
+    if settings.ALLOW_PRIVATE_REPOS:
+        return
+
+    Version = apps.get_model('builds', 'Version')
+    (
+        Version.objects
+        .filter(privacy_level='private')
+        .update(privacy_level='public', hidden=True)
+    )
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('builds', '0024_status_code_choices'),
+    ]
+
+    operations = [
+        migrations.RunPython(forwards_func),
+    ]