debug shows that's the unique id of the node assigmnent
class eznodeassignment {
var $PersistentDataDirty = false;
var $ID = 6875;
var $RemoteID = 0;
var $ParentRemoteID = '';
var $ContentobjectID = 6868;
var $ContentObjectVersion = 1;
var $ParentNode = 69;
...
}
the folder itself gets the values:
class ezcontentobjecttreenode {
...
var $Name = 'Billetter';
var $ClassIdentifier = 'folder';
var $ClassName = 'Folder';
<b> var $NodeID = '4359';</b>
var $ParentNodeID = '69';
var $MainNodeID = '4359';
var $ContentObjectID = '6868';
...
}