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09.13.2008 at 04:15PM PDT, ID: 23729391
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9.1

Trying to create a yui treemenu

Asked by n00b0101 in JavaScript Frameworks, JavaScript

Tags:

I'm using YUI's treeview method and I'm having some issues.

(1) If I just try to echo the response, I keep getting this error:   missing ) in parenthetical
But, if I add exit(); after the echo statement, it'll print out as expected.

(2) For the child nodes that it returns, it presents it as an expandable item, when it shouldn't be expandable at all.  

The mysql query (which looks for child categories for main category A)  outputs a string like this:
{"ResultSet":{"Result":["Category 1","Category 2","Category 3"]}}

I think the only relevant code is the yui code, which is posted below:
Start Free Trial 
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<script type="text/javascript">
 
YAHOO.example.treeExample = function() {
 
    var tree, currentIconMode;
 
    function changeIconMode() {
        var newVal = parseInt(this.value);
        if (newVal != currentIconMode) {
            currentIconMode = newVal;
        }
        buildTree();
    }
    
        function loadNodeData(node, fnLoadComplete)  {
            var nodeLabel = encodeURI(node.label);
            
            //prepare URL for XHR request:
            var sUrl = "/index.php?query=" + nodeLabel;
            
            //prepare our callback object
            var callback = {
            
                //if our XHR call is successful, we want to make use
                //of the returned data and create child nodes.
                success: function(oResponse) {
                    
                    var oResults = eval("(" + oResponse.responseText + ")");
                    if((oResults.ResultSet.Result) && (oResults.ResultSet.Result.length)) {
                        //Result is an array if more than one result, string otherwise
                        if(YAHOO.lang.isArray(oResults.ResultSet.Result)) {
                            for (var i=0, j=oResults.ResultSet.Result.length; i<j; i++) {
                                var tempNode = new YAHOO.widget.TextNode(oResults.ResultSet.Result[i], node, false);
                            }
                        } else {
                            //there is only one result; comes as string:
                            var tempNode = new YAHOO.widget.TextNode(oResults.ResultSet.Result, node, false)
                        }
                    }
                    oResponse.argument.fnLoadComplete();
                },
                
                failure: function(oResponse) {
                    YAHOO.log("Failed to process XHR transaction.", "info", "example");
                    oResponse.argument.fnLoadComplete();
                },
                
                argument: {
                    "node": node,
                    "fnLoadComplete": fnLoadComplete
                },
                
                timeout: 7000
            };
            
            YAHOO.util.Connect.asyncRequest('GET', sUrl, callback);
        }
 
        function buildTree() {
           //create a new tree:
           tree = new YAHOO.widget.TreeView("treeDiv1");
           
           //turn dynamic loading on for entire tree:
           tree.setDynamicLoad(loadNodeData, currentIconMode);
           
           //get root node for tree:
           var root = tree.getRoot();
           
           //add child nodes for tree; our top level nodes are
           var aCategories = ["A","B","C","D"];
           
           for (var i=0, j=aCategories.length; i<j; i++) {
                var tempNode = new YAHOO.widget.TextNode(aCategories[i], root, false);
           }
 
           var tempNode = new YAHOO.widget.TextNode('This is a leaf node', root, false);
           tempNode.isLeaf = true;
           
           tree.draw();
        }
 
 
    return {
        init: function() {
            YAHOO.util.Event.on(["mode0", "mode1"], "click", changeIconMode);
            var el = document.getElementById("mode1");
            if (el && el.checked) {
                currentIconMode = parseInt(el.value);
            } else {
                currentIconMode = 0;
            }
 
            buildTree();
        }
 
    }
} ();
 
//once the DOM has loaded, we can go ahead and set up our tree:
YAHOO.util.Event.onDOMReady(YAHOO.example.treeExample.init, YAHOO.example.treeExample,true)
 
</script>
[+][-]09.13.2008 at 07:42PM PDT, ID: 22470924

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[+][-]09.13.2008 at 08:40PM PDT, ID: 22471044

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[+][-]09.13.2008 at 08:54PM PDT, ID: 22471071

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[+][-]09.13.2008 at 08:56PM PDT, ID: 22471075

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[+][-]09.13.2008 at 09:06PM PDT, ID: 22471086

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About this solution

Zones: JavaScript Frameworks, JavaScript
Tags: yui php
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Solution Provided By: hielo
Participating Experts: 1
Solution Grade: A
 
 
 
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