Department::getList

static function getList()
{
	if (!self::checkModules())
		return false;

	if (BitrixImUser::getInstance()->isExtranet())
		return Array();

	$departmentIblockId = (int)BitrixMainConfigOption::get('intranet', 'iblock_structure', 0);
	if ($departmentIblockId <= 0)
		return Array();

	$cacheId = 'im_structure_'.$departmentIblockId;
	$cachePath = '/bx/imc/intranet/department/';

	$cache = BitrixMainApplication::getInstance()->getCache();
	$taggedCache = BitrixMainApplication::getInstance()->getTaggedCache();

	if($cache->initCache(self::CACHE_TOKEN_TTL, $cacheId, $cachePath) && false)
	{
		return $cache->getVars();
	}

	$taggedCache->startTagCache($cachePath);

	$sec = CIBlockSection::GetList(
		Array("left_margin"=>"asc", "SORT"=>"ASC"),
		Array("ACTIVE"=>"Y", "IBLOCK_ID"=>$departmentIblockId),
		false,
		Array('ID', 'NAME', 'DEPTH_LEVEL', 'UF_HEAD', 'IBLOCK_SECTION_ID')
	);

	$departments = Array();

	while($ar = $sec->GetNext(true, false))
	{
		$departments[$ar['ID']] = Array(
			'ID' => (int)$ar['ID'],
			'NAME' => $ar['NAME'],
			'FULL_NAME' => $ar['DEPTH_LEVEL'] > 1? $ar['NAME'].' / '.$departments[$ar['IBLOCK_SECTION_ID']]['FULL_NAME']: $ar['NAME'],
			'MANAGER_USER_ID' => (int)$ar['UF_HEAD'],
		);
	}

	$taggedCache->registerTag('iblock_id_'.$departmentIblockId);
	$taggedCache->endTagCache();

	$cache->startDataCache();
	$cache->endDataCache($departments);

	return $departments;
}