/**
* This event is fired after the payment method has been selected. It can be used to store
* additional payment info in the cart.
*
* @author Max Milbers
* @author Valérie isaksen
*
* @param VirtueMartCart $cart: the actual cart
* @return null if the payment was not selected, true if the data is valid, error message if the data is not vlaid
*
*/
public function plgVmOnSelectCheckPayment(VirtueMartCart $cart)
{
return parent::OnSelectCheck($cart);
}
