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[wolnelektury.git] / src / catalogue / migrations / 0010_bookpopularity.py

diff --git a/src/catalogue/migrations/0010_bookpopularity.py b/src/catalogue/migrations/0010_bookpopularity.py
index 42fd6cb..81834f9 100644 (file)
--- a/src/catalogue/migrations/0010_bookpopularity.py
+++ b/src/catalogue/migrations/0010_bookpopularity.py
@@ -1,7 +1,8 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
+# This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
+# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
+#
 from django.db import migrations, models
+import django.db.models.deletion
 
 
 class Migration(migrations.Migration):
@@ -16,7 +17,7 @@ class Migration(migrations.Migration):
             fields=[
                 ('id', models.AutoField(verbose_name='ID', serialize=False, auto_created=True, primary_key=True)),
                 ('count', models.IntegerField(default=0)),
-                ('book', models.OneToOneField(related_name='popularity', to='catalogue.Book')),
+                ('book', models.OneToOneField(on_delete=django.db.models.deletion.CASCADE, related_name='popularity', to='catalogue.Book')),
             ],
         ),
     ]