public function __construct($items = null) {
// if the first parameter is not an array, or we have more than one parameter, collate all parameters to an array
// otherwise use the passed array
$itemsArr = (!is_array($items) || count(func_get_args()) > 1) ? func_get_args() : $items;
parent::__construct($itemsArr);
foreach($this->items as $item) {
$item->setContainerFieldSet($this);
}
}
