From 2b29428e32832861f8ebe650dcea3201edf07f16 Mon Sep 17 00:00:00 2001
From: Helmut Merz <helmutm@cy55.de>
Date: Tue, 8 Nov 2011 13:37:36 +0100
Subject: [PATCH] more fault-tolerance: avoid errors when title or description
 is None

---
 concept.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/concept.py b/concept.py
index 14367ea..02e7bea 100644
--- a/concept.py
+++ b/concept.py
@@ -429,6 +429,8 @@ class IndexAttributes(object):
         if self.adaptedIndexAttributes is not None:
             return self.adaptedIndexAttributes.text()
         description = self.context.description
+        if description is None:
+            description = u''
         if isinstance(description, I18NValue):
             description = ' '.join(description.values())
         actx = self.adapted
@@ -441,6 +443,8 @@ class IndexAttributes(object):
     def title(self):
         context = self.context
         title = context.title
+        if title is None:
+            title = u''
         if isinstance(title, I18NValue):
             title = ' '.join(title.values())
         return ' '.join((getName(context), title)).strip()