From b925659d504ae7ca11f84de07a97f56c730e047a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Wed, 10 Sep 2008 14:38:56 +0200
Subject: [PATCH] Make empty list in clause is converted into true

---
 trytond/osv/orm.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/trytond/osv/orm.py b/trytond/osv/orm.py
index b4c11d1645..6b7a094293 100644
--- a/trytond/osv/orm.py
+++ b/trytond/osv/orm.py
@@ -2231,6 +2231,8 @@ class ORM(object):
         for args2 in list_args:
             qu1b, qu2b = self.__where_calc_oper(cursor,
                     user, args2, tables, tables_args, context=context)
+            if not qu1b:
+                qu1b = 'true'
             if qu1 and qu1b:
                 qu1 += ' ' + operator + ' ' + qu1b
             elif qu1b: