From 53b04dec5492d104f03bc8f9a939c6fdc1818742 Mon Sep 17 00:00:00 2001
From: Charles Haley <>
Date: Sat, 3 Jul 2010 19:39:48 +0100
Subject: [PATCH] Check that db.get_collections () exists and is callable.

---
 src/calibre/gui2/library/models.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/calibre/gui2/library/models.py b/src/calibre/gui2/library/models.py
index c487a8a252..7ffbc42f02 100644
--- a/src/calibre/gui2/library/models.py
+++ b/src/calibre/gui2/library/models.py
@@ -937,6 +937,7 @@ class DeviceBooksModel(BooksModel): # {{{
             cname = self.column_map[index.column()]
             if cname in ('title', 'authors') or \
                     (cname == 'collections' and \
+                     callable(getattr(self.db, 'supports_collections', None)) and \
                      self.db.supports_collections() and \
                      prefs['preserve_user_collections']):
                 flags |= Qt.ItemIsEditable