core: add index on folder and sas properties of SithFile to speed up SAS

core/migrations/0031_auto_20190906_1615.py

@@ -0,0 +1,27 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.24 on 2019-09-06 14:15
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [("core", "0030_auto_20190704_1500")]
+
+    operations = [
+        migrations.AlterField(
+            model_name="sithfile",
+            name="is_folder",
+            field=models.BooleanField(
+                db_index=True, default=True, verbose_name="is folder"
+            ),
+        ),
+        migrations.AlterField(
+            model_name="sithfile",
+            name="is_in_sas",
+            field=models.BooleanField(
+                db_index=True, default=False, verbose_name="is in the SAS"
+            ),
+        ),
+    ]