Yii2 How to set different validation rules for multiple input of one attribute?

Question

Yii

Let's say there are two inputs for one model attribute:
$form->field($model, 'price[]')->textInput(['id'=>'price1'])
$form->field($model, 'price []')->textInput(['id'=>'price2'])
I need to configure the validation so that the first input is required for input, and the second is not.

Answer 1

What type of attribute do you have? From the code, you can see that the model will receive an array. Array and validate with a function on the server, or validate on the client.