From 0d3b06d6a674da8abff6b06dea30a33bbe993a09 Mon Sep 17 00:00:00 2001
From: Rucha Patel <ruchakpatel@gmail.com>
Date: Sat, 20 Sep 2008 18:06:51 +0530
Subject: [PATCH] Added function unlink in sale order for not to delete
 confirmed SO

bzr revid: ruchakpatel@gmail.com-20080920123651-p2yw2mh586w6sl8d
---
 addons/sale/sale.py | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/addons/sale/sale.py b/addons/sale/sale.py
index 45783dd5978..2d278491fee 100644
--- a/addons/sale/sale.py
+++ b/addons/sale/sale.py
@@ -260,6 +260,17 @@ class sale_order(osv.osv):
     _order = 'name desc'
 
     # Form filling
+    def unlink(self, cr, uid, ids):
+        sale_orders = self.read(cr, uid, ids, ['state'])
+        unlink_ids = []
+        for s in sale_orders:
+            if s['state'] in ['draft','canceled']:
+                unlink_ids.append(s['id'])
+            else:
+                raise osv.except_osv(_('Invalid action !'), _('Cannot delete Sale Order(s) which are already confirmed !'))
+        osv.osv.unlink(self, cr, uid, unlink_ids)
+        return True
+    
     def onchange_shop_id(self, cr, uid, ids, shop_id):
         v={}
         if shop_id: