/** * Returns the message groups this message group is part of. * @since 2011-12-25 * @return array */ public static function getParentGroups(MessageGroup $group) { // Take the first message, get a handle for it and check // if that message belongs to other groups. Those are the // parent aggregate groups. Ideally we loop over all keys, // but this should be enough. $keys = array_keys($group->getDefinitions()); $title = Title::makeTitle($group->getNamespace(), $keys[0]); $handle = new MessageHandle($title); $ids = $handle->getGroupIds(); foreach ($ids as $index => $id) { if ($id === $group->getId()) { unset($ids[$index]); } } return $ids; }