Yii2 表单中未显示自定义模型属性的验证错误

我有一个具有以下自定义属性的模型：主题名称、主题详细信息（字符串字段）。我还有一个带有自定义属性和自定义规则的模型表单。在表单字段中插入错误数据时，会出现模型错误，但不会显示

型号代码：

......
 public function rules()
 {
    return [
             ...
             [['topics_names','topics_details'],'string'],
             [['topics_names'],'checkCorrectAndSetTopics'],
   ];
 }

 public function checkCorrectAndSetTopics(){
    if($this->topics_names AND $this->topics_details){
        $topicsNamesArray = explode(',',$this->topics_names);
        $topicsDetailsArray = explode(';',$this->topics_details);

        if(sizeof($topicsNamesArray) !== sizeof($topicsDetailsArray)){
            $this->addError('topics_names', \Yii::t('app', 'The topics names and details sets have different sizes'));
            return FALSE;
        }
    }      
    return TRUE;
}

问题是，当第二条规则被滥用时，表单不会显示任何错误，但会出现错误。我在调试下面的代码时检查了它

表格编号：

   ..........
        <?php
            ActiveForm::$autoIdPrefix = createRandomId();//Function which creates a random id
            $form = ActiveForm::begin(
              ['enableAjaxValidation' => true, "options"=>  ["class"=>"extra-form"]]);
        ?>

        <?= $form->errorSummary($model);  ?>

        <?= $form->field($model, 'topics_names')->textInput()
                ->label(\Yii::t('app', 'Topics Names'))?>
        <?= $form->field($model, 'topics_details')->textarea(['rows' => 6])
                ->label(\Yii::t('app', 'Topics Details'))?>


    ........   

---

首先，非常确定您不需要返回true或false，您只需要添加错误。第二件事，在您的示例中，您命名了属性，您在定义函数时实际上可以得到这个属性，因此您的函数可以如下所示

public function checkCorrectAndSetTopics($attribute, $model){
    if($this->topics_names AND $this->topics_details){
        $topicsNamesArray = explode(',',$this->topics_names);
        $topicsDetailsArray = explode(';',$this->topics_details);

        if(sizeof($topicsNamesArray) !== sizeof($topicsDetailsArray)){
            $this->addError($attribute, \Yii::t('app', 'The topics names and details sets have different sizes'));
        }
    }      
}

public function checkCorrectAndSetTopics($attribute, $model){
    if($this->topics_names AND $this->topics_details){
        $topicsNamesArray = explode(',',$this->topics_names);
        $topicsDetailsArray = explode(';',$this->topics_details);

        if(sizeof($topicsNamesArray) !== sizeof($topicsDetailsArray)){
            $this->addError($attribute, \Yii::t('app', 'The topics names and details sets have different sizes'));
        }
    }      
}