CFile::checkForDb

static function checkForDb($arFields, $field)
{
	if(isset($arFields[$field]) && is_array($arFields[$field]))
	{
		$arFile = $arFields[$field];

		if($arFile["name"] == "")
		{
			return "";
		}

		$fileName = self::transformName($arFile["name"]);
		return self::validateFile($fileName, $arFile);
	}
	else
	{
		return "";
	}
}