UserUtils::getDepartmentNames

static function getDepartmentNames($departmentIds)
{
	$result = Array();
	if (!ModuleManager::isModuleInstalled('intranet'))
	{
		return $result;
	}

	$cacheTtl = 2592000;
	$cacheName = 'iblock_structure';
	$cachePath = '/bx/user/company/structure';
	$iblockStructureId = ConfigOption::get('intranet', 'iblock_structure', 0);

	$taggedCache = Application::getInstance()->getTaggedCache();

	$companyStructure = Array();
	$cache = DataCache::createInstance();
	if ($cache->initCache($cacheTtl, $cacheName, $cachePath) && false)
	{
		$companyStructure = $cache->getVars();
	}
	else if ($iblockStructureId <= 0 || !Loader::includeModule('iblock'))
	{
		return $result;
	}
	else
	{
		$orm = BitrixIblockSectionTable::getList(Array('select' => Array('ID', 'NAME', 'DEPTH_LEVEL', 'IBLOCK_SECTION_ID'), 'filter' => Array('=IBLOCK_ID' => $iblockStructureId, '=ACTIVE' => 'Y',),));
		while ($department = $orm->fetch())
		{
			$companyStructure[$department['ID']] = $department;
		}

		$taggedCache->startTagCache($cachePath);
		$taggedCache->registerTag('iblock_id_'.$iblockStructureId);
		$taggedCache->endTagCache();

		if ($cache->startDataCache())
		{
			$cache->endDataCache($companyStructure);
		}
	}

	if (is_array($departmentIds) && !empty($departmentIds))
	{
		foreach ($departmentIds as $id)
		{
			if (!array_key_exists($id, $companyStructure))
			{
				continue;
			}

			$result[] = $companyStructure[$id];
		}
	}

	return $result;
}