[FIX] sale_stock: product_id_change fix

bzr revid: qdp-launchpad@openerp.com-20121001170920-fv2ueuyecml908gi

addons/sale_stock/sale_stock.py

@@ -610,14 +610,18 @@ class sale_order_line(osv.osv):
             lang=lang, update_tax=update_tax, date_order=date_order, packaging=packaging, fiscal_position=fiscal_position, flag=flag, context=context)
 
         if not product:
-            return {'value': {'th_weight': 0, 'product_packaging': False,
-                'product_uos_qty': qty}, 'domain': {'product_uom': [],
-                   'product_uos': []}}
+            res['value'].update({'product_packaging': False})
+            return res
+
+        #update of result obtained in super function
         res_packing = self.product_packaging_change(cr, uid, ids, pricelist, product, qty, uom, partner_id, packaging, context=context)
         res['value'].update(res_packing.get('value', {}))
         warning_msgs = res_packing.get('warning') and res_packing['warning']['message'] or ''
         product_obj = product_obj.browse(cr, uid, product, context=context)
         res['value']['delay'] = (product_obj.sale_delay or 0.0)
+        res['value']['type'] = product_obj.type
+
+        #check if product is available, and if not: raise an error
         uom2 = False
         if uom:
             uom2 = product_uom_obj.browse(cr, uid, uom)
@@ -625,7 +629,6 @@ class sale_order_line(osv.osv):
                 uom = False
         if not uom2:
             uom2 = product_obj.uom_id
-
         compare_qty = float_compare(product_obj.virtual_available * uom2.factor, qty * product_obj.uom_id.factor, precision_rounding=product_obj.uom_id.rounding)
         if (product_obj.type=='product') and int(compare_qty) == -1 \
           and (product_obj.procure_method=='make_to_stock'):
@@ -634,7 +637,8 @@ class sale_order_line(osv.osv):
                      max(0,product_obj.virtual_available), product_obj.uom_id.name,
                      max(0,product_obj.qty_available), product_obj.uom_id.name)
             warning_msgs += _("Not enough stock ! : ") + warn_msg + "\n\n"
-        # get unit price
+
+        #update of warning messages
         if warning_msgs:
             warning = {
                        'title': _('Configuration Error!'),