Yii2: Conditional Validator always returns required

Question

I am trying to use Yii2\'s conditional validator as given in the guide like:

Model code

public function rules()
{
   // $discharged = function($model) {          


        

Answer 1

Try to add enableClientValidation parameter as the following:

 ['discharge_date', 'required', 'when' => function($model) {
        return $model->discharged == 1;
 }, 'enableClientValidation' => false]