Dojo Forum

Here's a snippet from TreeV3.js, which I have traced down as the culprit for moving a node to its destination on drop.  What does the "this.doMove.apply" call do? I see there's a doMove method, but what does "apply" do to it??

What I am aiming for is for the addchild event to be called and the info sent to the server, but not actually HAPPEN on the screen, so I can map 2 elements together in my database based on their ids 

move:function (child, newParent, index) {
    if (!child.parent) {
        dojo.raise(this.widgetType + ": child can be moved only while it's attached");
    }
  alert('inside Tree move');
    var oldParent = child.parent;
    var oldTree = child.tree;
    var oldIndex = child.getParentIndex();
    var newTree = newParent.tree;
    var newParent = newParent;
    var newIndex = index;
    var message = {oldParent:oldParent, oldTree:oldTree, oldIndex:oldIndex, newParent:newParent, newTree:newTree, newIndex:newIndex, child:child};
    dojo.event.topic.publish(oldTree.eventNames.beforeMoveFrom, message);
    dojo.event.topic.publish(newTree.eventNames.beforeMoveTo, message);
    this.doMove.apply(this, arguments);
    dojo.event.topic.publish(oldTree.eventNames.afterMoveFrom, message);
    dojo.event.topic.publish(newTree.eventNames.afterMoveTo, message);
}, doMove:function (child, newParent, index) {
    child.doDetach();
    newParent.doAddChild(child, index);
}