-# -*- 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 models, migrations
+import django.db.models.deletion
class Migration(migrations.Migration):
('image_link', models.URLField(null=True, verbose_name='link', blank=True)),
('image_license', models.CharField(max_length=255, null=True, verbose_name='license name', blank=True)),
('image_license_link', models.URLField(null=True, verbose_name='license link', blank=True)),
- ('book', models.ForeignKey(verbose_name='book', blank=True, to='catalogue.Book', null=True)),
+ ('book', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, verbose_name='book', blank=True, to='catalogue.Book', null=True)),
],
options={
'ordering': ('vip', 'text'),