Checking multiple attributes inside built-in validator in Yii 2

Question

Checking multiple attributes inside built-in validator in Yii 2

I know that you can validate a single attribute using the built-in validator , for example:

['country', 'validateCountry']

public function validateCountry($attribute, $params)
{
    if (!in_array($this->$attribute, ['USA', 'Web'])) {
        $this->addError($attribute, 'The country must be either "USA" or "Web".');
    }
}

But how do I go to multiple attributes in the validator? ... or should I just reference them via $this

in the validator?

+3

php yii yii2

Brett 27 nov. '14 at 10:30

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2 answers

In Yii2, you have to write it like below:

['username', 'customValidator', 'params' => ['extraFields' => 'email']]

+4

Zhang buzz Dec 11. 15 at 7:28 am

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topher · Accepted Answer · 2014-11-27T11:31:11+0000

Instead of directly accessing additional fields, for example using $this->email

, you can pass additional attributes as a field in params

for example how it compareValidator

works, i.e.

['username', 'customValidator', 'params' => ['extraFields' => 'email']]


public function customValidator($attribute, $params) {
    //access extrafields using $this->{$params['extraFields']}
}

Checking multiple attributes inside built-in validator in Yii 2

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