From f3d641cb3c13cf0b6fa24cfe04ab8d1d0ce0b575 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Thu, 18 Sep 2008 12:23:50 +0200
Subject: [PATCH] Improve readonly states for currency Set readonly only if
 there is a currency set

---
 invoice.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/invoice.py b/invoice.py
index eb9ec45d37..db850eebe5 100644
--- a/invoice.py
+++ b/invoice.py
@@ -258,7 +258,7 @@ class Invoice(OSV):
         required=True, states=_STATES, domain="[('party', '=', party)]")
     currency = fields.Many2One('currency.currency', 'Currency', required=True,
         states={
-            'readonly': "state != 'draft' or bool(lines)",
+            'readonly': "state != 'draft' or (bool(lines) and bool(currency))",
         })
     currency_digits = fields.Function('get_currency_digits', type='integer',
             string='Currency Digits', on_change_with=['currency'])