/**
* Recursively set attributes on an item and its' children
*
* @param ItemInterface $menu
* @param array $attr
*/
public function setRecursiveAttribute(ItemInterface $menu, array $attr)
{
$itemIterator = new RecursiveItemIterator($menu->getIterator());
$iterator = new \RecursiveIteratorIterator($itemIterator, \RecursiveIteratorIterator::SELF_FIRST);
foreach ($iterator as $menuItem) {
/** @var ItemInterface $menuItem */
$menuItem->setChildrenAttributes($attr);
}
}