Ip\Internal\Grid\Model\Field\RepositoryFile::createData PHP Метод

    public function createData($postData)
    {
        if (!isset($postData[$this->field][0])) {
            return array();
        }
        if ($this->fileLimit == 1) {
            $value = $postData[$this->field][0];
        } else {
            $value = json_encode($postData[$this->field]);
        }
        return array($this->field => $value);
    }