How to validate Yii2 dynamic model

Question

I was working on Yii2 and would like to dynamically validate the field, like validate if another field is not selected.

I found below code on Yii2 documentation:

['state', 'required', 'when' => function($model) {
    return $model->country == 'USA';
}]

But the thing is that I am using Yii2 dynamic model. How could I achieve the same thing shown above in dynamic model.

not clear how are you initializing the dynamic model you need to call addRule on the dynamic model like, $model->addRule(['field_name','string',['max'=>255]]) , and then call the validate $model->validate(), this will call the validation and show you the errors, you need to show the code. you are working on. — Muhammad Omer Aslam
– Muhammad Omer Aslam, Commented Nov 9, 2018 at 13:15

WeSee · Accepted Answer · 2023-02-07 22:10:19Z

3

As usual model:

$model = new \yii\base\DynamicModel([
    'name', 'country', 'state'
]);

$model->addRule(
    'state', 'required', ['when' => function($model) {
        return $model->country == 'USA';
    }
]);

edited Feb 7, 2023 at 22:10

WeSee

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answered Nov 9, 2018 at 13:19

Anton Rybalko

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1 Comment

WeSee Over a year ago

Your parameters in addRule are incorrect. addRule requires at least 2 arguments. Should be ->addRule('state', 'required', ['when'...]);. See yiiframework.com/doc/api/2.0/…

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