From 3c9f4f2fac422162a29f5114b7b257a09f7bc80e Mon Sep 17 00:00:00 2001
From: "VRA(OpenERP)" <>
Date: Fri, 5 Feb 2010 17:05:25 +0530
Subject: [PATCH] [FIX] Sale/Purchase : Worfklow instance had to ve removed
 while setting record's workflow back to draft state

lp bug: https://launchpad.net/bugs/401801 fixed

bzr revid: jvo@tinyerp.com-20100205113525-5l4pb805w19s6c9q
---
 addons/purchase/purchase.py | 2 ++
 addons/sale/sale.py         | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/addons/purchase/purchase.py b/addons/purchase/purchase.py
index cc300516dd0..8f58dc32c10 100644
--- a/addons/purchase/purchase.py
+++ b/addons/purchase/purchase.py
@@ -300,6 +300,8 @@ class purchase_order(osv.osv):
         self.write(cr, uid, ids, {'state':'draft','shipped':0})
         wf_service = netsvc.LocalService("workflow")
         for p_id in ids:
+            # Deleting the existing instance of workflow for PO
+            wf_service.trg_delete(uid, 'purchase.order', p_id, cr)            
             wf_service.trg_create(uid, 'purchase.order', p_id, cr)
         return True
 
diff --git a/addons/sale/sale.py b/addons/sale/sale.py
index 36cd10a4311..263c5f3c233 100644
--- a/addons/sale/sale.py
+++ b/addons/sale/sale.py
@@ -303,6 +303,8 @@ class sale_order(osv.osv):
         self.pool.get('sale.order.line').write(cr, uid, line_ids, {'invoiced': False, 'state': 'draft', 'invoice_lines': [(6, 0, [])]})
         wf_service = netsvc.LocalService("workflow")
         for inv_id in ids:
+            # Deleting the existing instance of workflow for SO
+            wf_service.trg_delete(uid, 'sale.order', inv_id, cr)
             wf_service.trg_create(uid, 'sale.order', inv_id, cr)
         return True