OptionElementView.php

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<?php
namespace TYPO3\CMS\Form\View\Mail\Plain\Element;

class OptionElementView extends \TYPO3\CMS\Form\View\Mail\Plain\Element\AbstractElementView {

    public function __construct(\TYPO3\CMS\Form\Domain\Model\Element\OptionElement $model, $spaces) {
        parent::__construct($model, $spaces);
    }

    public function render() {
        $data = $this->getData();
        if ($data != '') {
            return str_repeat(chr(32), $this->spaces) . $data;
        }
    }

    protected function getData() {
        $value = '';
        if (array_key_exists('selected', $this->model->getAllowedAttributes()) && $this->model->hasAttribute('selected')) {
            $value = $this->model->getData();
        }
        return $value;
    }

}