From 9f7ba142538fb3ab73691db0970b4348f66cbf93 Mon Sep 17 00:00:00 2001
From: Kersten Jeremy <jke@openerp.com>
Date: Tue, 1 Apr 2014 18:14:40 +0200
Subject: [PATCH] [FIX] Calendar mail_message : check context before to use it

bzr revid: jke@openerp.com-20140401161440-w2jjr0a5u49lwnsj
---
 addons/calendar/calendar.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/addons/calendar/calendar.py b/addons/calendar/calendar.py
index 3dc1fa75b8d..12a1cec79f4 100644
--- a/addons/calendar/calendar.py
+++ b/addons/calendar/calendar.py
@@ -1582,6 +1582,8 @@ class mail_message(osv.Model):
         return super(mail_message, self).search(cr, uid, args, offset=offset, limit=limit, order=order, context=context, count=count)
 
     def _find_allowed_model_wise(self, cr, uid, doc_model, doc_dict, context=None):
+        if context is None:
+            context = {}
         if doc_model == 'calendar.event':
             order = context.get('order', self._order)
             for virtual_id in self.pool[doc_model].get_recurrent_ids(cr, uid, doc_dict.keys(), [], order=order, context=context):