fix issue in state

odex25_purchase/purchase_requisition_custom/models/purchase_order.py

@@ -537,7 +537,8 @@ class PurchaseOrderCustom(models.Model):
     def button_confirm(self):
         for order in self:
             if order.state not in ['draft']:
-                return super(PurchaseOrderCustom, self).button_confirm()
+                order.write({'state': 'purchase'})
+                return True
             order._add_supplier_to_product()
             # Deal with double validation process
             if order._approval_allowed():