How can I set a required field for a certain form?

Question

Yii

I have a model where there are already mandatory lines, Let's say when saving or editing. And let's say my situation is such that if the order was rejected, then you need to specify the reason for the refusal, it must be mandatory, but if this is done in the model, then the data in the database will not be created and edited and everything is desirable to be in one table without creating with a new table. That is, I need to make only one required field in one form, I tried this

<?php $form = ActiveForm::begin([]); ?>

<?= $form->field($model, 'declined')->textInput(['required']) ?>

<?= Html::submitButton('Отправить', ['class' => 'btn btn-primary'])?>

<?php ActiveForm::end()?>

But something doesn't work

Answer 1

use scripts