/**
* Checks if the given value is a valid email address.
* If at least one error occurred, the result is FALSE.
* The regexp is a modified version of the last one shown on
* http://www.regular-expressions.info/email.html
*
* @param mixed $value The value that should be validated
* @return boolean TRUE if the value is valid, FALSE if an error occured
*/
public function isValid($value)
{
if (empty($value)) {
return true;
} else {
return parent::isValid($value);
}
}
/**
* @param string $emailAddress
* @return bool
*/
protected function validEmail($emailAddress)
{
return parent::validEmail(trim($emailAddress));
}