Custom Validation Not Working- Yii2-app-basic-Yii2

Question

I Posted one question yesterday regarding custom validation for radio button Textfield Mandatory On Radio Button. I got answer. But, that was not exact answer. But, it solve

Answer 1

Atlast, i got my answer

     //company_name
      ['company_name', 'required', 'when' => function($model){
        return ($model->user_type == 'Firm' ? true : false);
      }, 'whenClient' => "function (attribute, value) {
          return $('input[type=\"radio\"][name=\"Users[user_type]\"]:checked').val() == 'Firm';
      }"],