/**
  * Search roles of user
  * @param  integer $id
  * @param  string  $target
  * @param  string  $term
  * @return string
  */
 public function actionSearch($id, $target, $term = '')
 {
     $return = parent::actionSearch($id, $target, $term);
     //非超超超级管理员,不可以分配Super权限
     if (!User::checkIsSuperAdmin() && $return && isset($return['Roles']) && isset($return['Roles']['super'])) {
         unset($return['Roles']['super']);
     }
     return $return;
 }
 public function actionIndex()
 {
     return parent::actionIndex();
 }