mdm\admin\models\AuthItem::save PHP Метод

    public function save()
    {
        if ($this->validate()) {
            $manager = Configs::authManager();
            if ($this->_item === null) {
                if ($this->type == Item::TYPE_ROLE) {
                    $this->_item = $manager->createRole($this->name);
                } else {
                    $this->_item = $manager->createPermission($this->name);
                }
                $isNew = true;
            } else {
                $isNew = false;
                $oldName = $this->_item->name;
            }
            $this->_item->name = $this->name;
            $this->_item->description = $this->description;
            $this->_item->ruleName = $this->ruleName;
            $this->_item->data = $this->data === null || $this->data === '' ? null : Json::decode($this->data);
            if ($isNew) {
                $manager->add($this->_item);
            } else {
                $manager->update($oldName, $this->_item);
            }
            Helper::invalidate();
            return true;
        } else {
            return false;
        }
    }

 /**
  * Creates a new AuthItem model.
  * If creation is successful, the browser will be redirected to the 'view' page.
  * @return mixed
  */
 public function actionCreate()
 {
     $model = new AuthItem(null);
     if ($model->load(Yii::$app->getRequest()->post(), '') && $model->save()) {
         MenuHelper::invalidate();
     }
     return $model;
 }