From d5614f167fc952955900769af23a983eb5dc353d Mon Sep 17 00:00:00 2001
From: Sergi Almacellas Abellana <sergi@koolpi.com>
Date: Fri, 1 Jul 2016 11:39:38 +0200
Subject: [PATCH] Manage readonly state on margin fields

Related to: https://bugs.tryton.org/issue5628
Now it's allowed to change the cost_price (so the margins are updated) on the
quotation state also.
---
 sale.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sale.py b/sale.py
index 58f64e3..a3408ac 100644
--- a/sale.py
+++ b/sale.py
@@ -71,6 +71,7 @@ class SaleLine:
     cost_price = fields.Numeric('Cost Price', digits=price_digits,
         states={
             'invisible': Eval('type') != 'line',
+            'readonly': ~Eval('sale_state').in_(['draft', 'quotation']),
             }, depends=['type'])
     margin = fields.Function(fields.Numeric('Margin',
             digits=(16, Eval('_parent_sale', {}).get('currency_digits', 2)),