[FIX] base_calendar: res.users.lang may be NULL

bzr revid: odo@openerp.com-20121217222629-0btejze060msu6sl

diff --git a/addons/base_calendar/base_calendar.py b/addons/base_calendar/base_calendar.py
index b1f49df..247debe 100644 (file)
--- a/addons/base_calendar/base_calendar.py
+++ b/addons/base_calendar/base_calendar.py
@@ -303,7 +303,7 @@ class calendar_attendee(osv.osv):
             if name == 'language':
                 user_obj = self.pool.get('res.users')
                 lang = user_obj.read(cr, uid, uid, ['lang'], context=context)['lang']
-                result[id][name] = lang.replace('_', '-')
+                result[id][name] = lang.replace('_', '-') if lang else False
 
         return result