From 940bbdb18c045bf0626037ef41aa417c3f693655 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Fri, 2 Jan 2015 15:49:24 +0100
Subject: [PATCH] Redefine _order instead of duplicate order on id

issue3439
review14831002
---
 invoice.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/invoice.py b/invoice.py
index a6322010d4..6b87ac7755 100644
--- a/invoice.py
+++ b/invoice.py
@@ -186,8 +186,10 @@ class Invoice(Workflow, ModelSQL, ModelView, TaxableMixin):
         super(Invoice, cls).__setup__()
         cls._check_modify_exclude = ['state', 'payment_lines', 'cancel_move',
                 'invoice_report_cache', 'invoice_report_format']
-        cls._order.insert(0, ('number', 'DESC'))
-        cls._order.insert(1, ('id', 'DESC'))
+        cls._order = [
+            ('number', 'DESC'),
+            ('id', 'DESC'),
+            ]
         cls._error_messages.update({
                 'missing_tax_line': ('Invoice "%s" has taxes defined but not '
                     'on invoice lines.\nRe-compute the invoice.'),