node

The node attribute has several functions according to circumstances
In either case the node attribute points to the ID column of a database record.

Insert a new node

When you would like to add a new record, the node attribute will be the parent-node to wich you want to add the new subnode.
If the new node should be inserted to the top level of the tree, then node="0".

Updating or deleting nodes

When updating or deleting nodes from the tree, the node attribute indicates the ID of the database record.

Displaying a path

Path example 1: topnode > parentnode > parentnode > node
Path example 2: ~~topnode~~ > rootnode > parentnode > node

In this case, the node represents the starting point for the path "upwards" to the root of the tree (here "topnode"). When defining a rootnode, the path ends there.
*The path display begins after the "topnode" or the "rootnode".