public static function add()
{
// copy permissions from the other node.
$rootNode = GroupTreeNode::add();
$treeID = parent::add($rootNode);
$tree = self::getByID($treeID);
return $tree;
}
public static function add($name)
{
// copy permissions from the other node.
$rootNode = TopicCategoryTreeNode::add();
$treeID = parent::add($rootNode);
$tree = self::getByID($treeID);
$tree->setTopicTreeName($name);
// by default, topic trees are viewable by all
$guestGroupEntity = GroupPermissionAccessEntity::getOrCreate(UserGroup::getByID(GUEST_GROUP_ID));
$pk = TopicCategoryTreeNodePermissionKey::getByHandle('view_topic_category_tree_node');
$pk->setPermissionObject($rootNode);
$pa = PermissionAccess::create($pk);
$pa->addListItem($guestGroupEntity);
$pt = $pk->getPermissionAssignmentObject();
$pt->assignPermissionAccess($pa);
return $tree;
}