From b5129816dcefb4078d280c7827793e96e4c0a83d Mon Sep 17 00:00:00 2001
From: Cedric Snauwaert <csn@openerp.com>
Date: Wed, 13 Mar 2013 16:43:42 +0100
Subject: [PATCH] [FIX]res_currency: change value from 0 to 1 when no rate is
 associated to a given period of time in order to prevent division by zero
 error

bzr revid: csn@openerp.com-20130313154342-g1d1jj3g061evf56
---
 openerp/addons/base/res/res_currency.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/openerp/addons/base/res/res_currency.py b/openerp/addons/base/res/res_currency.py
index 9e5eec6cfed..20db3ecee98 100644
--- a/openerp/addons/base/res/res_currency.py
+++ b/openerp/addons/base/res/res_currency.py
@@ -21,12 +21,15 @@
 
 import re
 import time
+import logging
 
 from openerp import tools
 from openerp.osv import fields, osv
 from openerp.tools import float_round, float_is_zero, float_compare
 from openerp.tools.translate import _
 
+_logger = logging.getLogger(__name__)
+
 CURRENCY_DISPLAY_PATTERN = re.compile(r'(\w+)\s*(?:\((.*)\))?')
 
 class res_currency(osv.osv):
@@ -49,7 +52,9 @@ class res_currency(osv.osv):
                 id, rate = cr.fetchall()[0]
                 res[id] = rate
             else:
-                res[id] = 0
+                #to prevent division by zero in case no rate exist for the defined period, we put the rate to one
+                _logger.warning(("No currency rate associated for currency_id %d" % (id)))
+                res[id] = 1
         return res
     _name = "res.currency"
     _description = "Currency"