Yii2 validation. Run filter on multiple attributes

Question

public function rules()
{
    return [
        [['option_list', 'modifier'], 'filter', 'filter' => function($value) {
            // I can get the value but I don't know to which attribute it belongs (option_list or modifier)
        }],
    ];
}

How do I get an attribute name which is being processed? The only workaround that I found is to make separate filter for each attribute...

oakymax · Accepted Answer · 2017-07-04 08:22:04Z

1

The first parameter passed to validation function is $attribute so You can use it as follows

public function rules()
{
    return [
        [['option_list', 'modifier'], function($attribute) {
            // use $this->$attribute for conditions or filtering
            // use $this->addError($attribute, '<error message>') for adding errors
        }],
    ];
}

see http://www.yiiframework.com/doc-2.0/guide-input-validation.html#creating-validators

edited Jul 4, 2017 at 8:22

answered Jul 4, 2017 at 7:46

oakymax

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4 Comments

Sergey Onishchenko Over a year ago

Yes, it is, but for validators. Notice, that I use "filter".

oakymax Over a year ago

@SergeyOnishchenko yes, but actually filter is just one of Yii2 core validators. in own rule you can easily perform filtering too.

Sergey Onishchenko Over a year ago

Yes this is ok, but in this case it's not so obvious that data modification is taking place instead of validation.

oakymax Over a year ago

@SergeyOnishchenko it's just the semantic value of validation rule name. You can name your validation rule function myFilter and use it as filter. Or You can create own validation class with proper call semantic (maybe inherited from built-in Filter)

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