--- /dev/null
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.20 on 2019-06-26 08:33
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+ dependencies = [
+ ('catalogue', '0025_merge'),
+ ]
+
+ operations = [
+ migrations.AddField(
+ model_name='book',
+ name='preview_key',
+ field=models.CharField(blank=True, max_length=32, null=True),
+ ),
+ ]