Sencha Touch Tree Store 'Object has no method getRootNode' - sencha-touch

Question

I am developing an Android 2.3.3 app using PhoneGap and Sencha Touch 2 ...
I have an Login view from which i redirect to nested list view in my app ... I used an inline store for the nested list and i defined the type as 'tree' for the store ...
The first time i am trying to load the app and when i click on Login it is giving me an error ... The error is stated below :
Uncaught TypeError: Object [object Object] has no method 'getRootNode' at file:///android_asset/www/sencha/sencha-touch-all.js:15
But after getting the error if i force close the app and open it again everything is working fine ...
My code is :
Login.js
Ext.define("DDLApp.view.Login", {
//extent panel class
extend: "Ext.form.Panel",
//DOM in fieldset
requires: "Ext.form.FieldSet",
xtype: 'formLogin',
id:'loginForm',
config: {
scrollable: 'vertical',
id: 'login',
items: [
{
xtype: "toolbar",
docked: "top",
},
{
xtype: "toolbar", //Toolbar with heading as login
docked: "top",
title: "Login",
ui:'light',
id:"idHeaderTwo",
cls:"clsLoginHeader"
},
{
xtype: 'textfield', //textfield for username
name: 'Username',
required: true,
id:"idUserName",
cls:"clsUserName",
useClearIcon: false
},
{
xtype: 'passwordfield', //textfield for password
name: 'password',
required: true,
id:"idPassword",
cls:"clsPassword",
useClearIcon: false
},
{
xtype: 'button', //Login button
text: 'Login',
ui: 'confirm',
cls:'btnLogin',
width:'30%',
handler: function(SuccessFlag) { //Login button handler
ui: 'confirm',
console.log('Login Button pressed');
var form = Ext.getCmp('login');
//get username and password from form elements
var user = form.getValues().Username;
var pwd = form.getValues().password;
var msg = new Ext.MessageBox();
onLoad();
if(user == "" || pwd == "")
{
var errMsg = '';
if(user == "")
{
errMsg+= 'Username is required<br/>';
}
if(pwd == "")
{
errMsg+= 'Password is required';
}
msg.show({
title: 'LOGIN ERROR',
message: errMsg,
ui:'light',
cls: 'vm_error',
showAnimation: 'fadeIn',
hideAnimation: 'fadeOut',
buttons: [{text:'OK',itemId:'ok'}],
fn:function(){
Ext.emptyFn();
}
});
}
else
{
form.setMasked({
xtype:'loadmask',
message:'Loading...'
});
//Check for network connectivity
if(onDeviceReady())
{
//Fire a json service
Ext.util.JSONP.request({
url: DDLApp.app.oneTimeServiceUrl,
dataType: "jsonp",
params: {
type:'fetch',
username:user,
password:pwd
},
success: function (result) {
//if username and password matches
if(result.Success == true)
{
//setLocalStorage(result);
localStorage.setItem('userName',user);
localStorage.setItem('userPassword',pwd);
localStorage.setItem('totalData',JSON.stringify(result.Data));
localStorage.setItem('userData',JSON.stringify(result.Data.user));
localStorage.setItem('userIncidentData',JSON.stringify(result.Data.incidentList));
localStorage.setItem('impactData',JSON.stringify(result.Data.impact));
localStorage.setItem('incidentTypeData',JSON.stringify(result.Data.incident_type));
localStorage.setItem('categoryData',JSON.stringify(result.Data.category));
localStorage.setItem('statusData',JSON.stringify(result.Data.statusDropdown));
var indexPanel = Ext.create('DDLApp.view.Main');
Ext.Viewport.add(indexPanel);
Ext.Viewport.setActiveItem(indexPanel,{type: 'slide', direction: 'right'});
form.unmask();
}
else{
msg.show({
title: 'LOGIN ERROR',
message: 'Invalid Username/Password',
ui:'light',
cls: 'vm_error',
showAnimation: 'fadeIn',
hideAnimation: 'fadeOut',
buttons: [{text:'OK',itemId:'ok'}],
fn:function(){
Ext.emptyFn();
}
});
form.unmask();
}
}
});
}
////If network is not present
else
{
form.unmask();
msg.show({
title: 'NETWORK CONNECTION ERROR',
message: "We're Sorry but it appears your device is not connected to the internet . Please check your internet settings and try again.",
ui:'light',
cls: 'vm_error',
showAnimation: 'fadeIn',
hideAnimation: 'fadeOut',
buttons: [{text:'Retry',itemId:'retry'}],
fn:function(){
window.location.reload();
}
});
}
}
},
},
{
xtype: 'button', //clear button
text: 'Clear',
width:'30%',
ui: 'confirm',
cls:'btnClear',
style: 'background:#4A4245;',
handler: function() {
this.up('formpanel').reset(); //reset all form elements
},
}
]
},
});
IncidentsList.js
Ext.define("DDLApp.view.IncidentsList", {
extend: "Ext.Container",
xtype: 'incidentsList',
id: 'idIncList',
requires:[
'Ext.dataview.NestedList',
'Ext.data.proxy.Memory',
'Ext.data.TreeStore',
],
alias:'widget.incidentslist',
config: {
id: 'idIncidentList',
layout:'fit',
items: [
{
xtype: "toolbar",
docked: "top",
cls:'clsDDLHeader',
items: [
{xtype:'spacer'},
{ xtype: 'title' ,
cls: 'clsRightTitle',
id: 'idIncidentsListTitle',
title:"Welcome",
},
]
},
{
xtype: "toolbar",
ui:'light',
id:"idHeaderTwo",
cls:"clsHeaderTwo" ,
items: [
{ xtype: 'title' ,
cls: 'clsLeftTitle',
title: "My Incidents",
},
{xtype:'spacer'}
]
},
{
xtype: 'nestedlist',
id:'idIncidentList',
onItemDisclosure:true,
cls:'clsNestedIncidentList',
toolbar:{id:'idNestedIncidentList'},
loadingText: "Loading Incidents...",
emptyText: "<div class=\"empty-text\">No Incidents Found.</div>",
getItemTextTpl: function() {
var tplConstructor =
'<tpl if="TKT_STATUS_NAME == \'CLOSED\'">'+
'<div class="vm_statusRed">'+
'</tpl>'+
'<tpl if="TKT_STATUS_NAME == \'OPENED\'">'+
'<div class="vm_statusYellow">'+
'</tpl>'+
'<tpl if="TKT_STATUS_NAME == \'ASSIGNED\'">'+
'<div class="vm_statusGreen">'+
'</tpl>'+
'<tpl if="TKT_STATUS_NAME == \'PENDING\'">'+
'<div class="vm_statusRed">'+
'</tpl>'+
'<tpl if="TKT_STATUS_NAME == \'RESOLVED\'">'+
'<div class="vm_statusOrange">'+
'</tpl>'+
'<tpl if="TKT_STATUS_NAME == \'REOPEN\'">'+
'<div class="vm_statusYellow">'+
'</tpl>'+
'<div class="vm_dvList"><h4 class="vm_txtName"><span class="vm_listHeader"><label>Inci.#{TKT_ID} by </label><label class="vm_txtFirstName"><i>{FIRST_NAME:ellipsis(15, true)}</i></label></span><div class="date vm_clsDate">{CREATED_ON:date("d-M-y H:i")}</div></h4>'+
'<div class="vm_title">{TKT_SUBJECT}</div>'+
'<div class="vm_subDesc">{TKT_DESC}</div></div></div>';
return tplConstructor;
},
store: {
type: 'tree',
fields: ['TKT_ID', 'CREATED_ON', 'FIRST_NAME', 'TKT_STATUS_NAME', 'TKT_SUBJECT', 'TKT_DESC', 'SEV_DESC', 'SERVICE_NAME', 'CATEGORY_NAME', {
name: 'leaf',
defaultValue: true
}],
root: {
leaf: false
},
data : localStorage.userIncidentData,
proxy: {
type: 'memory',
reader: {
type: 'json',
rootProperty: 'incidentList'
}
}
},
detailCard: {
xtype: "fieldset",
scrollable: true,
id: "idIncidentDetails",
items: [
{
xtype: 'textfield',
name: 'TKT_SUBJECT',
label: 'Subject',
labelAlign: 'top',
cls:'vm_textFields',
clearIcon:false,
disabled:true
},
{
xtype: 'textareafield',
name: 'TKT_DESC',
label: 'Description',
labelAlign: 'top',
cls:'vm_textFields',
clearIcon:false,
disabled:true
},
{
xtype: 'textfield',
name: 'SEV_DESC',
label: 'Impact',
labelWidth:'45%',
cls:'vm_textFields',
clearIcon:false,
disabled:true
},
{
xtype: 'textfield',
name: 'SERVICE_NAME',
id:'displayIncident',
cls:'vm_textFields',
label: 'IncidentType',
labelWidth:'45%',
disabled:true
},
{
xtype: 'textfield',
label: 'Category',
name: 'CATEGORY_NAME',
cls:'vm_textFields',
id:'getCategory',
labelWidth:'45%',
disabled:true
},
],
},
listeners: {
itemtap: function(nestedList, list, index, element, post) {
this.getDetailCard().items.items[0].setHtml(post._data.TKT_SUBJECT);
this.getDetailCard().items.items[1].setHtml(post._data.TKT_DESC);
this.getDetailCard().items.items[2].setHtml(post._data.SEV_DESC);
this.getDetailCard().items.items[3].setHtml(post._data.SERVICE_NAME);
this.getDetailCard().items.items[4].setHtml(post._data.CATEGORY_NAME);
}
}
},
{html:'No Incidents Found....',id:'idEmptyText'}],
},
initialize: function() {
this.callParent(arguments);
var incidentStore = Ext.getCmp('idIncidentList').getStore();
Ext.getCmp("idEmptyText").hide();
var getLoginData = localStorage.getItem('userData');
var parseData = JSON.parse(getLoginData);
var fname = parseData[0].FIRST_NAME;
var getIncidentData = localStorage.getItem('userIncidentData');
var parseIncidentData = JSON.parse(getIncidentData);
this.down("#idIncidentsListTitle").setTitle("Welcome, " + fname);
if(localStorage.userIncidentData != '[""]')
{
Ext.getCmp("idEmptyText").hide();
incidentStore.setData(localStorage.userIncidentData).load();
}
else
{
this.down("#inclist").hide();
this.down("#idEmptyText").show();
var msg = new Ext.MessageBox();
msg.show({
title: 'NO INCIDENTS FOUND',
message: 'No Incidents have reported by this user',
ui:'light',
cls: 'vm_error',
showAnimation: 'fadeIn',
hideAnimation: 'fadeOut',
buttons: [{text:'OK',itemId:'ok'}],
fn:function(){
Ext.emptyFn();
}
});
}
},
});
I need to get rid of this error as soon as possible ... Everything in my app is working fine from the second time onwards ... I think the problem is with the store i have defined ... Please help me guys ... Thanks in Advance ...!!!

Answer 1

My store is defined inline in my IncidentList View itself ...
store: {
type: 'tree',
fields: ['TKT_ID', 'CREATED_ON', 'FIRST_NAME', 'TKT_STATUS_NAME', 'TKT_SUBJECT', 'TKT_DESC', 'SEV_DESC', 'SERVICE_NAME', 'CATEGORY_NAME', {
name: 'leaf',
defaultValue: true
}],
root: {
leaf: false
},
data : localStorage.userIncidentData,
proxy: {
type: 'memory',
reader: {
type: 'json',
rootProperty: 'incidentList'
}
}
},

Answer 2

This is true: Object [object Object] has no method getRootNode
This method is no longer available in ST2, take a look at the API docs.
Actually, this is the only place in ST code that has this method left. Try editing sencha code in TreeStore
removeAll: function() {
this.getRootNode().removeAll(true);
this.callParent(arguments);
},
to
removeAll: function() {
this.getRoot().removeAll(true);
this.callParent(arguments);
},