How to convert value in validation?

Question

Yii

Such a question, I have a widget with a MaskedInput currency format. There you drive in, let's say 101111120, in the input 10 111 120 '. Only when you send the form to save the value field writes the value must be a number. From the integer format, I switched to doulbe, but I still didn’t solve
the problem in the view

<?= $form->field($model, 'oplata')->widget(MaskedInput::className(), [
                    'clientOptions' => [
                        'alias' => 'decimal',
                        'groupSeparator' => ' ',
                        'autoGroup' => true,
                    ],
                'options' => ['placeholder' => 'Cтоимость', 'class' => 'inputWidget-form'],
            ])->label(false) ?>

In the model

public function rules()
    {
        return [
            [[ 'oplata'], 'number'],
        ];
    }

Roughly speaking, I need to specify in the validation $model->oplata = str_replace(" ", "", $model->oplata);

Answer 1

As soon as spaces appear in a string, it can no longer be a number, it's a string.

['oplata', 'filter', 'filter' => function ($value) {
        return str_replace(" ", "", $value);
    }],

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