From 9c64ce80683c3622bde8ab215e732e9b3e9a5c9c Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Wed, 18 Aug 2010 09:57:25 -0600
Subject: [PATCH] Content Server: Do not add empty categories to the top level
 OPDS feed

---
 src/calibre/library/server/opds.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/calibre/library/server/opds.py b/src/calibre/library/server/opds.py
index f32e5ad47a..e1cbb79599 100644
--- a/src/calibre/library/server/opds.py
+++ b/src/calibre/library/server/opds.py
@@ -550,6 +550,8 @@ class OPDSServer(object):
                 (_('Title'), _('Title'), 'Otitle'),
                 ]
         for category in categories:
+            if len(categories[category]) == 0:
+                continue
             if category == 'formats':
                 continue
             meta = category_meta.get(category, None)