From 4134312db600f1a86fd8f0f9cfb7b0b9d58fba78 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Marek=20St=C4=99pniowski?= <marek@stepniowski.com>
Date: Sat, 6 Sep 2008 18:51:02 +0200
Subject: [PATCH 1/1] Added foreign key to parent book on Book model.

---
 catalogue/models.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/catalogue/models.py b/catalogue/models.py
index 057236dc2..e80bd259a 100644
--- a/catalogue/models.py
+++ b/catalogue/models.py
@@ -81,6 +81,8 @@ class Book(models.Model):
     odt_file = models.FileField(_('ODT file'), upload_to='books/odt', blank=True)
     html_file = models.FileField(_('HTML file'), upload_to='books/html', blank=True)
     
+    parent = models.ForeignKey('self', blank=True, null=True)
+    
     objects = managers.ModelTaggedItemManager(Tag)
     tags = managers.TagDescriptor(Tag)
     
-- 
2.20.1