[MRG] from tunk 6.1

(lp:c2c-addons/6.1  rev 24.1.1)

currency_rate_update/__openerp__.py

@@ -75,8 +75,6 @@ If in multi-company mode, the base currency will be the first company's currency
 found in database.
 
 Thanks to main contributors : Grzegorz Grzelak, Alexis de Lattre
-
-
 """,
     "depends" : ["base",
                  "account"], #Added to ensure account security groups are present

currency_rate_update/currency_rate_update.py

@@ -98,11 +98,12 @@ class Currency_rate_update_service(osv.osv):
                         ]
 
     def _check_max_delta_days(self, cr, uid, ids):
-        for i in ids:
-            value_to_check = self.read(cr, uid, i, ['max_delta_days'])['max_delta_days']
-            if value_to_check >= 0:
-                return True
-            else: return False
+        for company in self.read(cr, uid, ids, ['max_delta_days']):
+            if company['max_delta_days'] >= 0:
+                continue
+            else:
+                return False
+        return True
 
     _constraints = [
         (_check_max_delta_days, "'Max delta days' must be >= 0", ['max_delta_days']),