Extjs 4, Dynamic Tree and store re-mapping - extjs

Question

I need to Extjs Tree panel with dynamic remote data(JSON) for file listing.
and the date field name is not fit to Extjs tree store field. so I need to re-mapping to make fit, like adding leaf field and text field.
the return JSON data is like this:
[{
"id":1,
"yourRefNo":"A91273",
"documentName":"Test Document",
"documentFileName":"login_to_your_account-BLUE.jpg",
"updatedBy":"root root",
"updatedAt":"\/Date(1343012244000)\/"
}]
and this is the tree panel:
Ext.define('App.view.Document.DocumentList', {
extend :'Ext.tree.Panel',
rootVisible : false,
alias: 'widget.Document_list',
store: 'DocumentList_store'
});
and this is the store:
Ext.define('App.store.DocumentList_store', {
extend: "Ext.data.TreeStore",
model: 'App.model.DocumentList_model',
proxy: {
type: 'ajax',
url: '/Document/GetDocumentList/',
actionMethods: {
read: 'POST'
},
reader: {
type: 'json',
root: '' // there is no root
},
pageParam: undefined,
startParam: undefined,
pageParam: undefined
},
root: {
children: []
},
autoLoad: false,
listeners: {
append: function (thisNode, newChildNode, index, eOpts) {
console.log(newChildNode.get('documentName')); // 'Test Document'
newChildNode.set('leaf', true);
newChildNode.set('text', newChildNode.get('documentName'));
// it does not add to tree panel.
}
}
});
after load data from server, and it call the append function well. but after that, nothing show up in tree panel.
What I am doing wrong? please advice me.
Thanks
[EDIT]
This is the model,
Ext.define("App.model.DocumentList_model", {
extend: "Ext.data.Model",
fields: [
'id','yourRefNo','documentName','documentFileName','updatedBy','updatedAt'
]
});

Answer 1

I'm fusing your code with a piece of working code of mine. Try see if this works:
Model:
Ext.define("App.model.DocumentList_model", {
extend: 'Ext.data.Model',
fields: [
{name: 'id'},
{name: 'yourRefNo'},
{name: 'documentName' },
{name: 'documentFileName'},
{name: 'updatedBy'},
{name: 'updatedAt', convert: function(v) { return v;} }, // Notice you can do field conversion here
{name: 'leaf', type: 'boolean', defaultValue: false, persist: false},
],
proxy: {
type: 'ajax',
url: '/Document/GetDocumentList/',
actionMethods: {
read: 'POST'
},
reader: {
type: 'json',
root: 'children'
},
},
});
Store:
Ext.define('App.store.DocumentList_store', {
extend: "Ext.data.TreeStore",
model: 'App.model.DocumentList_model',
root: {
text: 'Root',
id: null,
expanded: true
},
autoLoad: false,
});
JSON Response:
{
"success":true,
"children":[{
"id":1,
"yourRefNo":"A91273",
"documentName":"Test Document",
"documentFileName":"login_to_your_account-BLUE.jpg",
"updatedBy":"root root",
"updatedAt":"\/Date(1343012244000)\/",
"leaf":false
}]
}