app\http\controllers\UserController::saveSidebarState PHP Method

    public function saveSidebarState()
    {
        if (Input::has('show_left')) {
            Session::put(SESSION_LEFT_SIDEBAR, boolval(Input::get('show_left')));
        }
        if (Input::has('show_right')) {
            Session::put(SESSION_RIGHT_SIDEBAR, boolval(Input::get('show_right')));
        }
        return RESULT_SUCCESS;
    }