'This opens log view to view and add new log for this vehicle, groupby default to only show effective costs
@return: the costs log view'

@api.multi
def act_show_log_cost(self):

    self.ensure_one()
    res = self.env['ir.actions.act_window'].for_xml_id('fleet', 'fleet_vehicle_costs_action')
    res.update(context=dict(self.env.context, default_vehicle_id=self.id, search_default_parent_false=True), domain=[('vehicle_id', '=', self.id)])
    return res
