Show paid tickets instead of available quota in event list

src/pretix/base/migrations/0081_quota_cached_availability_paid_orders.py

@@ -0,0 +1,28 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.5 on 2017-10-18 09:06
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+def clear_quota_caches(app, schema_editor):
+    Quota = app.get_model('pretixbase', 'Quota')
+    Quota.objects.all().update(cached_availability_time=None)
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('pretixbase', '0080_auto_20171016_1553'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='quota',
+            name='cached_availability_paid_orders',
+            field=models.PositiveIntegerField(blank=True, null=True),
+        ),
+        migrations.RunPython(
+            clear_quota_caches, migrations.RunPython.noop
+        )
+    ]