The treeitem class allows you to logically store tree-based structures.

Example:

Let's have a tree with 3 nodes. It's important that we always have a "root" key.

$root = new TreeItem("root", 1); $item1 = new TreeItem("node1",2); $item2 = new TreeItem("node2",3); $item3 = new TreeItem("node3",4);

$root->addItem($item1); $root->addItem($item2); $root->addItem($item3);

This represents the tree we described above.

If you know the ID of the item you want to add to, there's no need to have a specific item handy, but rather you can use the "addItemToID" function.

 Methods

TreeItem(string $name, string $id, boolean $collapsed) 

addItem(object $item) 

addItemToID(object $item, string $id) 

collapseAll(string $start) 

expandAll(string $start) 

getCollapsedList(array $list) 

getExpandedList(array $list) 

getFlatTree($item, $flat_tree) 

getItemByID(string $id) : object

getParentNodes($parentNodes, $stop_id) 

getRealCollapsedList($list) 

getTreeParentNodes($parentNodes, $id) 

hasCollapsedNode($item_id) 

isCustomAttributeSet(string $item) 

markCollapsed(string $id) 

markExpanded(string $id) 

removeItem(string $id) 

traverse(object $objects, integer $level) 

 Properties

$collapsed : boolean

$collapsed_icon : string

$custom : array

$expanded_icon : string

$id : string

$lastnode_icon : string

$level : integer

$name : string

$parent : array

$subitems : array