Question

I would like a node of a specific type to always appear at the bottom of a parent node. For example:

• Parent
  • Node Type A
  • Node Type A
  • Node Type A
  • Node Type B

Here, you would be able to drag and drop to move/manually sort nodes of Type A, but Type B would always appear below those nodes.

Is this possible and if so, can anyone give me some pointers?

Answer 1

Try this:

crrm : {
    move : {
        check_move : function (m) {
            var oldIndex = m.cop;
            var newIndex = m.cp;
            var oldParent = m.op;
            var newParent = m.np;

            if($("> ul > li[rel=typeB]", newParent).length == 0){ // no B Items in this folder
                return false;
            }
            // allow moving node only if "we are not going to place it to the end of the folder" or if "we are moving B node"
            return $("> ul > li", newParent).length != newIndex || m.o.attr("rel") == "typeB"; 
        }
    }
},