I have this action. This action let all the users to see all sale orders

            Sales Orders        ir.actions.act_window        sale.order        form        tree,form,calendar,graph                { 'search_default_my_sale_orders_filter': 1}/
        [('state', 'not in', ('draft', 'sent', 'cancel'))]    
Now, I want to add some users to a group called group_restrictions, in order to show the users of this groups the sale orders with user_id = capital. I tried something like this but it's not working, it's still showing me all users. Could you help me?

            Sales Orders Inherit        ir.actions.act_window        sale.order                        [('state', 'not in', ('draft', 'sent', 'capital')),('user_id','=','mendoza')]