Menu::getChildren

protected function getChildren(array $parentIds = array(0))
{
	if(empty($parentIds))
		return array();

	$result = array();

	$dbRes = BitrixSaleDeliveryServicesTable::getList(array(
		"filter" => array(
			"=PARENT_ID" => $parentIds
		),
		"select" => array(
			"ID", "NAME", "DESCRIPTION", "CLASS_NAME"
		),
		"order" => array(
			"SORT" =>"ASC",
			"NAME" => "ASC"
		)
	));

	$services = array();
	$parents = array();

	while($service = $dbRes->fetch())
	{
		$services[$service["ID"]] = $service;
		$result[$service["ID"]] = array();

		if(is_callable($service["CLASS_NAME"].'::canHasChildren') &&  $service["CLASS_NAME"]::canHasChildren())
			$parents[] =  $service["ID"];
	}

	if(!empty($parents))
		$childrenList = $this->getChildren($parents);

	foreach($services as $serviceId => $service)
	{
		$canHasChildren = in_array($serviceId, $parents);

		if($canHasChildren && !empty($childrenList[$serviceId]))
			$children = $childrenList[$serviceId];
		else
			$children =array();

		foreach($children as $key => $child)
			if(!$child["can_has_children"])
				unset($children[$key]);

		$item = array(
			"text" => htmlspecialcharsbx($service["NAME"]),
			"title" => htmlspecialcharsbx($service["DESCRIPTION"]),
			"url" => "sale_delivery_service_list.php?lang=".LANGUAGE_ID."&filter_group=".$serviceId."&PARENT_ID=".$serviceId."&apply_filter=y",
			"page_icon" => "sale_page_icon",
			//"icon" => $canHasChildren ? "sale_section_icon" : "",
			"can_has_children" => $canHasChildren,
			"more_url" => array(
				"sale_delivery_service_edit.php?lang=".LANGUAGE_ID."&PARENT_ID=".$serviceId
			),
			"items_id" => "sale_delivery_service_list_".$serviceId,
		);

		if($canHasChildren && !empty($children))
		{
			$item["items"] = $children;
			$item["dynamic"] = true;
			$item["items_id"] = "menu_sale_delivery_".$serviceId;
		}

		$result[$serviceId] = $item;
	}

	return $result;
}