From c594b231afbbafa12937554adb50a2cf71d1a44e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Nicolas=20=C3=89vrard?= <nicoe@b2ck.com>
Date: Fri, 11 Jul 2014 18:18:36 +0200
Subject: [PATCH] Make party readonly in case there is lines

issue3942
review5321002
---
 sale.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sale.py b/sale.py
index f8b896c3c5..bcf7d3201a 100644
--- a/sale.py
+++ b/sale.py
@@ -67,7 +67,8 @@ class Sale(Workflow, ModelSQL, ModelView):
         depends=['state'])
     party = fields.Many2One('party.party', 'Party', required=True, select=True,
         states={
-            'readonly': Eval('state') != 'draft',
+            'readonly': ((Eval('state') != 'draft')
+                | (Eval('lines', [0]) & Eval('party'))),
             },
         depends=['state'])
     party_lang = fields.Function(fields.Char('Party Language'),