misc: cleanup remaining tables from django-admin-tools (#48614)

src/authentic2/migrations/0030_clean_admin_tools_tables.py

@@ -0,0 +1,30 @@
+from django.db import migrations
+import logging
+
+
+def noop(apps, schema_editor):
+    pass
+
+
+def clean_admin_tools_tables(apps, schema_editor):
+    try:
+        with schema_editor.connection.cursor() as cursor:
+            cursor.execute("SELECT table_name FROM information_schema.tables "
+                           "WHERE table_schema = current_schema() "
+                           "AND table_name LIKE 'admin_tools%'")
+            rows = cursor.fetchall()
+            for table_name, in rows:
+                cursor.execute('DROP TABLE "%s" CASCADE' % table_name)
+    except Exception:
+        logging.getLogger(__name__).exception('migration authentic2.0030 failed')
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('authentic2', '0029_auto_20201013_1614'),
+    ]
+
+    operations = [
+        migrations.RunPython(clean_admin_tools_tables, noop),
+    ]