如何在odoo中从一个表单视图重定向到另一个表单视图？

Even though button appears it does not redirect me anywhere.I want first button to redirect to sale.order form view (id 605) which contains discount and second button to sale2.order form view (id 575) which does not contain any discount to items.Should i do anything in python code or just modify my xml code?Even though button appears it does not redirect