system/modules/short_urls/dca/tl_short_urls.php
public function validateDomain($varValue, DataContainer $dc)
    {
        $this->validate($dc->activeRecord->name, $varValue);
        return $varValue;
    }
public function validateDomain($varValue, DataContainer $dc)
    {
        $this->validate($dc->activeRecord->name, $varValue);
        return $varValue;
    }
Process and validate the name of a short url
@param mixed         $varValue
@param DataContainer $dc
@return string
@throws Exception