From 0fab39cc6d416047ee2603456adf6bfb3245f24c Mon Sep 17 00:00:00 2001
From: "aag (OpenERP)" <aag@tinyerp.co.in>
Date: Thu, 13 Jan 2011 17:07:35 +0530
Subject: [PATCH] [FIX] Product:delete a product category if it contained
 products previously

lp bug: https://launchpad.net/bugs/698023 fixed

bzr revid: aag@tinyerp.co.in-20110113113735-ed412zqg9dc1ve0c
---
 addons/product/product.py | 25 ++++++++++++++++++++++++-
 1 file changed, 24 insertions(+), 1 deletion(-)

diff --git a/addons/product/product.py b/addons/product/product.py
index eabd9494908..0529c217dbe 100644
--- a/addons/product/product.py
+++ b/addons/product/product.py
@@ -302,7 +302,17 @@ class product_template(osv.osv):
         'loc_case': fields.char('Case', size=16),
         'company_id': fields.many2one('res.company', 'Company',select=1),
     }
-
+    
+    def unlink(self, cr, uid, ids, context=None):
+       temp = self.read(cr, uid, ids,context=context)
+       unlink_ids = []
+       for t in temp:
+           unlink_ids.append(t['id'])
+       osv.osv.unlink(self, cr, uid, unlink_ids, context=context)
+       return True
+    
+    
+  
     def _get_uom_id(self, cr, uid, *args):
         cr.execute('select id from product_uom order by id limit 1')
         res = cr.fetchone()
@@ -482,6 +492,19 @@ class product_product(osv.osv):
         'pricelist_id': fields.dummy(string='Pricelist', relation='product.pricelist', type='many2one'),
         'name_template': fields.related('product_tmpl_id', 'name', string="Name", type='char', size=128, store=True),
     }
+    
+    def unlink(self, cr, uid, ids, context=None):
+        unlink_ids = []
+        unlink_product_tmpl_ids = []
+        for product in self.browse(cr, uid, ids, context=context):
+            tmpl_id = product.product_tmpl_id.id
+            # Check if the product is last product of this template
+            other_product_ids = self.search(cr, uid, [('product_tmpl_id', '=', tmpl_id), ('id', '!=', product.id)], context=context)
+            if not other_product_ids:
+                 unlink_product_tmpl_ids.append(tmpl_id)
+            unlink_ids.append(product.id)
+        self.pool.get('product.template').unlink(cr, uid, unlink_product_tmpl_ids, context=context)
+        return super(product_product, self).unlink(cr, uid, unlink_ids, context=context)
 
     def onchange_uom(self, cursor, user, ids, uom_id,uom_po_id):
         if uom_id and uom_po_id: