ruby on rails - How to make page error404? -

please advice.

userscontroller:

class userscontroller < applicationcontroller   before_action :set_user, only: [:show]    ........   .........    def show     ......   end    private     def set_user       @user = user.find_by_id(params[:id])       render_404 unless @user     end end 

applicattioncontroller:

class applicationcontroller < actioncontroller::base   before_action :set_locale    protect_from_forgery with: :exception    private      def render_404        render file: "public/404.html", status: 404     end   end 

at http://localhost:3000/users/24/ see page user.

at http://localhost:3000/users/24242424/ see page error404.

at http://localhost:3000/qwertyghjfd see error message:

routing error no route matches [get]

i need @ http://localhost:3000/qwertyghjfd saw page error404

in applicationcontroller call render_404 when there routing error

rescue_from actioncontroller::routingerror, :with => : render_404