how to append json variable as child nodes using “jstree” jquery plugin - no ajax

Question

I have a jsTree using the json data format. Loading the root nodeset is fine.

My problem is how to append child nodes to the parent node that was clicked.

A

Answer 1

see documentation here: jsTree docu

EDIT

here is the code, you need to change url to your destination, try it

html:

<div id="tree-cat1"></div>

js:

 $("#tree-cat1").jstree({
    "plugins": ["themes", "json_data", "ui"],
    "themes": {"theme": "classic","dots": true,"icons": true},
    "json_data": {
          //root elements
        "data": [{"data":'A node',"state":'closed',"attr":{"id":'A'}}], 
        "ajax": {
            "type": 'POST',
            "data": {"action": 'getChildren'},
            "url": function (node) { 
                var nodeId = node.attr('id'); //id="A"

                return 'yuorPathTo/GetChildrenScript/' + nodeId;
            },
            "success": function (new_data) {
                //where new_data = node children 
                //e.g.: [{'data':'A1 node','attr':{'id':'A1'}}, {'data':'A2 node','attr':{'id':'A2'}}]
                return new_data;
            }
        }
    }
});

OLD PART
something like that will populate opened node with children, if not already done:

 ...
    "json_data": {
          //root elements
        "data": [{"data":'A node',"state":'closed',"attr":{"id":'group_A'}}], 
        "ajax": {
            "type": 'POST',
            "data": {"action": act.GET_GROUPREPORTS},
            "url": function (node) { 
                var nid = node.attr('id'); //id="group_A"
                nid = nid.substr(nid.lastIndexOf('_')+1);

                return module.getDBdata_path + nid;
            },
            "success": function (data) {
                var rid, new_data = data;

                if (typeof data[0] === 'undefined') {
                    new_data = [];
                    for (rid in data) {
                        if(data.hasOwnProperty(rid)) {
                          new_data.push({"data": data[rid], 
                               "attr": {"id": 'rprefix_'+rid, 
                                        "title": ' ', 
                                        "rel": 'report',
                                        "href": module.repView_path+rid
                              }
                          });
                        }
                    }
                }
                return new_data;
            }
        }
    }, ...