From aca59617f7d12e16b842cdb53597416e95969614 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Fri, 2 Jan 2015 15:49:55 +0100
Subject: [PATCH] Redefine _order instead of duplicate order on id

issue3439
review6781002
---
 purchase.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/purchase.py b/purchase.py
index bfd06535c0..ca2264dec7 100644
--- a/purchase.py
+++ b/purchase.py
@@ -155,8 +155,10 @@ class Purchase(Workflow, ModelSQL, ModelView, TaxableMixin):
     @classmethod
     def __setup__(cls):
         super(Purchase, cls).__setup__()
-        cls._order.insert(0, ('purchase_date', 'DESC'))
-        cls._order.insert(1, ('id', 'DESC'))
+        cls._order = [
+            ('purchase_date', 'DESC'),
+            ('id', 'DESC'),
+            ]
         cls._error_messages.update({
                 'warehouse_required': ('A warehouse must be defined for '
                     'quotation of purchase "%s".'),