/**
* Check for GET Params existence
*
* @note The PRESENCE of key is tested, not its value
*
* @param string $param
* Desired Param from Dynamic Params
*
* @return boolean
* TRUE if exists, FALSE otherwise OR if a
* Next\HTTP\Request\RequestException is caught
*
* @throws Next\Controller\ControllerException
* Testing existence of internal properties
*/
public function __isset($param)
{
$param = trim($param);
if (substr($param, 0, 1) == '_') {
throw ControllerException::unnecessaryTest();
}
try {
return $this->_application->getRequest()->getQuery($param) !== FALSE;
} catch (RequestException $e) {
return FALSE;
}
}
