public function getFileUri($fieldName = null)
    {
        $path = self::UPLOAD_DIR_NAME . "/" . $this->getTableName();

        if ($fieldName) {
            $path .= "/" . $fieldName;
        }

        foreach ($this->getFileInfo() as $fileInfo) {
            if (isset($fileInfo["field"]) && isset($fileInfo["uri"]) && $fieldName == $fileInfo["field"]) {
                $path = $fileInfo["uri"];
                break;
            }
        }

        return $path;
    }