[TYPO3-mvc] validator: email, but not required?

[Bastian Waidelich]

Stig Nørgaard Færch wrote:

> If I validate a property as e-mail, it will also fail an empty value. It
> of course makes some sense, as an empty value doesn't comply as an
> e-mail address.

This issue has recently been fixed in FLOW3 (after some discussion) [1].
Maybe someone feels like backporting this - unfortunately it is a 
breaking change though..

> But I need it to pass when empty as well. What is the preferred to do
> this way?

Probably the easiest solution for now would be to create a 
EmailOrEmptyValidator like:

class Tx_YourExt_Validation_EmailAddressOrEmptyValidator extends 
Tx_Extbase_Validation_Validator_EmailAddressValidator {
	public function isValid($value) {
		if ($value === NULL || $value === '') {
			return TRUE;
		}
		return parent::isValid($value);
	}
}

(untested)


But, obviously this should be possible without custom validators too.

HTH
Bastian

[1] http://forge.typo3.org/issues/33300