yii asynchronous custom validation and verification methods

First, the asynchronous verification, ajax generally used to verify the uniqueness more

1, model validation turned 
[[ 'Mobile_ID', 'IP'], 'UNIQUE', 'Message' => Yii :: T ( 'App', 'E10010')], 
2, the controller authentication method 
// ajax asynchronous The only verification 
if (Yii :: $ app-> request- > isAjax && Yii :: $ app-> request-> isPost && $ model-> load (Yii :: $ app-> request-> post ())) { 
    :: $ APP- Yii> Response-> the format :: = the Response FORMAT_JSON; 
    $ = Yii :: $ APP- the params> request-> POST ( 'CardNumber'); 
    $ valiArr = [ 'Mobile_ID']; // according to some Analyzing conditions, which fields a request to verify the 
    return the validate the ActiveForm :: (Model $, $ valiArr); 
} 
. 3, view layer enables asynchronous validation 
field (Model $, 'Mobile_ID', [<= $ form-?> 
                        'enableAjaxValidation to be '=> to true, 
                    ]);
                    ?> 


Second, the custom validation method 
call to $ models-> method validation will trigger custom fields when validate () method
 model layer
['idinfobind', 'checkIdInfoBind', 'on' => 'add'],
 public function checkIdInfoBind($attribute)
    {
        $where = Yii::$app->request->post()['Unit']['idinfobind'];
        $namedata = Top::find()->where(['id' => $where])->one();
//        $studentiddata = Top::find()->where(['student_id' => $where])->one();
        if (empty($namedata) ) {
            $this->addError($attribute, Yii::t('app', 'user id info bind failed'));//添加错误信息
        }
        
    }