2 Trees + Connector_PHP - prevent drag on connector tree?

Suite and Optimus Suite 5
#1

I have an app where I drag a list of xml_generated documents from one container to a second container-- a connector_php tree of categories. I would like documents to be dragged anywhere,in any container, but have the categories be fixed (no drag, but category can be dropped on).



I’ve added a db field “nodrag” = true, but don’t know how to render this in the connector so it displays on the site as UserData.

Then I would use a custom function to prevent drag of these UserData items.



Here’s the general idea:

tree.attachEvent(“onBeforeDrag”,function(){

var testdnd = tree.getUserData(id,“nodrag”).value;

if (testdnd = “true”) {return false;} else {return true;}

});



Any ideas on how to solve?







// the connector_php code//



    function no_dragging_categories($data){

        if ($data->get_value(“nodrag”) = “true”)

            add the tag “true”;

            }

    $tree = new TreeConnector($res);

    $tree->event->attach(“beforeRender”,“no_dragging_categories”);

    $tree->render_table(“CATEGORYLIST”,“taskId”,“taskName”,“”,“parentId”);





// the html code//

…



//–CATEGORIES TREE - RHS --//

        tree=new dhtmlXTreeObject(“treeboxbox_tree”,“100%”,“100%”,0);

        tree.setImagePath(“…/dhtmlxSuite/dhtmlxTree/codebase/imgs/”);

        tree.enableDragAndDrop(true,false);

        tree.attachEvent(“onDblClick”,function(id){document.location.href=tree.getUserData(id,“url”);return true;});

        tree.loadXML(“get-categories.php”);

        //need to make this trees elements not draggable - use userdata



//–DOCUMENTS TREE - LHS --//

        tree2=new dhtmlXTreeObject(“treeboxbox_tree2”,“100%”,“100%”,0);

        tree2.setImagePath(“…/dhtmlxSuite/dhtmlxTree/codebase/imgs/”);

        tree2.enableDragAndDrop(true);

        tree2.makeAllDraggable();

        tree2.attachEvent(“onDblClick”,function(id){document.location.href=tree2.getUserData(id,“url”);return true;});

        tree2.loadXML(“get-docs.php”);



//–PREVENT DRAGS AND DROPS ONTO DOCUMENTS TREE --//

        function no_drag_to_docs(id_drag, id_landing) {return false;}

        tree2.setOnDragIn(no_drag_to_docs);



//–PREVENT MOVING CATEGORIES, allow documents dnd here only --//

        tree.attachEvent(“onBeforeDrag”,function(id){

         var testdnd = tree.getUserData(id,“nodrag”).value;

         doLog(testdnd);

         if (testdnd = “true”) {return false;} else {return true;}

        });



#2


beforeRender handler can be as follows:


function no_dragging_categories($data){
if ($data->get_value(“nodrag”) = “true”)
$data->set_user_data(“nodrag”,“true”);
}
$tree = new TreeConnector($res);
$tree->event->attach(“beforeRender”,“no_dragging_categories”);
$tree->render_table(“CATEGORYLIST”,“taskId”,“taskName”,“nodrag”,“parentId”);