How to loaded ExtJS TreePanel from database table column2 as a ChildNode - oracle

Question

`My oracle database and getting Tree-panel :
Now I would like to display database table from column2 asa each
Parent Node as Child Node please let me know how could I make it also
my Json Data I am getting result like that please let me know how could I get child node ?
My Expected result like :
This is the JSON data :
[{
"id":1,"reportTreeType":0,"text":"Root","reportType":null,"reportUrl":"", "hidden":false,
"children":[{
"id":5,"reportTreeType":0,"text":"Hardware","reportT‌​ype":"HardReport","reportUrl":"","hidden":false,"children":[], "leaf":false,"dirName":"","href":"","reportId":0,"qtip":""}]
I have tried ExtJS Tree-Panel below like but I am getting from table-1 column1 parent node not getting column2 child nodes ?
Ext
.onReady(function() {
var tree = new Ext.tree.TreePanel(
{id : 'treePanel',
el : 'tree-div',
useArrows : true,
title : 'Export',
autoScroll : true,
width : 250,
region : 'west',
animate : true,
enableDD : true,
containerScroll : true,
enableKeyEvents : true,
collapsible : true,
split : true,
rootVisible : false,
border : false,
// auto create TreeLoader
dataUrl :'<c:url value="/customize/ExportReport.do?method=getExport"/>',
root : {
nodeType : 'async',
text : 'Root',
draggable : false,
id : '-1',
expanded:true,
//here Children node I cannot able to rendered where I have made mistake ?
children:[{
text: reportT‌​ype, //TreeNode Java class variable
leaf: true }]
}
} }); });

Answer 1

If I understand well, you would like that Hardware is a child of Root and HardReport a child of Hardware.
I think there is no direct solution in ExtJs.
you change your backend to send the correct data
you have to manually parse the JSON
you load the data in a first tree store, and then you build a second tree store by looping through the first.