Related
Uncaught TypeError: Cannot read property 'items' of null
the error is inside initComponent
my error show when i use my xtype: 'treepanel', i think the error inside the initComponent
userName = localStorage.getItem("userName");
Ext.define('TutorialApp.view.main.Main', {
extend : 'Ext.container.Container',
requires :
[
'TutorialApp.view.main.MainController',
'TutorialApp.view.main.MainModel',
'TutorialApp.store.MainTree'
],
xtype : 'app-main',
controller: 'main',
plugins : 'viewport',
viewModel :
{
type : 'main'
},
layout : {
type : 'border'
},
items :
[
{
xtype : 'panel',
bind :
{
title: '{name} '+userName+''
},
region : 'west',
html : '<ul><li>This area is commonly used for navigation, for example, using a "tree" component.</li></ul>',
width : 250,
split : true,
collapsible : true,`enter code here`
bbar :
[
{
text : 'Button',
handler : 'onClickButton'
}
],
items : [
{
xtype : 'treepanel',
rootVisible : true,
store : 'MainTree',
initComponent: function()
{
// declare store
this.store = new TutorialApp.store.MainTree();
// declare all items
this.items = [
{
title: 'Tree'
}
];
this.callParent();
}
}
]
},
{
region : 'center',
xtype : 'tabpanel',
items :
[
{
title : 'Tab 1',
html : '<h2>Content appropriate for the current navigation.</h2>'
}
]
}
]
});
This tree store comes
its a simple store
Ext.define('TutorialApp.store.MainTree', {
extend: 'Ext.data.TreeStore',
root: {
text: 'Root',
expanded: true,
children: [
{
text: 'Child 1',
leaf: true
},
{
text: 'Child 2',
leaf: true
},
{
text: 'Child 3',
expanded: true,
children: [
{
text: 'Grandchild',
leaf: true
}
]
}
]
}
});
any help ?
i think the error inside the initComponent
initComponent is not really supposed to be passed as a config option. If you need to apply your own logic in initComponent, you have to derive your own class. So, instead of:
{
xtype: 'treepanel',
rootVisible: true,
store: 'MainTree',
initComponent: function() {
// declare store
this.store = new TutorialApp.store.MainTree();
// declare all items
this.items = [
{
title: 'Tree'
}
];
this.callParent();
}
}
define your own tree panel:
Ext.define('MyTreePanel', {
extend: 'Ext.panel.Panel',
alias: 'widget.mytreepanel',
initComponent: function() {
// declare store
this.store = new TutorialApp.store.MainTree();
// declare all items
this.items = [
{
title: 'Tree'
}
];
this.callParent();
}
});
and use its xtype:
{
xtype: 'mytreepanel',
rootVisible: true,
store: 'MainTree'
}
I am using ExtJs to create a combobox.
Here is my code:
Ext.define('Form.FormTypeDialog', {
extend : 'Ext.Window',
id: 'formTypeDialog',
formId: null,
callbackFunction : null,
modal: true,
statics : {
show : function(formId, callback) {
Ext.create(Form.FormTypeDialog", {
formId : formId,
callbackFunction : callback
}).show();
}
},
constructor : function(config) {
var me = this;
Ext.apply(this, {
buttons : [
{
text:"#{msgs.form_create_dialog_button_cancel}",
cls : 'secondaryBtn',
handler: function() {
me.close();
}
},
{
text:"#{msgs.form_create_dialog_button_next}",
handler: function() {
// Get selected form type
}
}
]
});
this.callParent(arguments);
},
initComponent:function() {
this.setTitle("#{msgs.form_create_dialog_title}");
this.setHeight(175);
this.setWidth(327);
var formTypeStore = Mystore.Store.createRestStore({
url : getRelativeUrl('/rest/form/formTypes'),
root: 'objects',
fields: ['name','value']
});
this.form = new Ext.form.Panel({
style:'padding:15px;background-color:#fff' ,
border:false,
bodyBorder:false,
items:[
new Ext.form.Label({
text: "#{msgs.form_create_dialog_select_type_label}",
margin: "25 10 25 5"
}),
new Ext.form.ComboBox({
id: 'createformTypeCombo',
margin: "8 10 25 5",
allowBlank: false,
forceSelection: true,
editable:false,
store: formTypeStore,
valueField: 'value',
displayField: 'name',
width: 260,
emptyText: '#{msgs.form_create_dialog_select_type}'
})
]
});
this.items = [
this.form
];
this.callParent(arguments);
}
});
I am creating this window on a xhtml page on a button click using :
Form.FormTypeDialog.show(null, showFormWindowCallBack);
It works fine and combo box is displayed and I can select value.
But if I open and close it 4 times, then in next show it shows the values but It do not allow me to select the last two value. I can only select first value.
Please suggest.
Note: I have tried copying and executing this code in forms of other pages of my application. But behavior is same in all cases.
This combobox is on a Ext.Window.
EDIT:
JSON RESPONSE FROM Rest:
{"attributes":null,"complete":true,"count":3,"errors":null,"failure":false,"metaData":null,"objects":[{"name":"Application
Provisioning Policy Form","value":"Application"},{"name":"Role
Provisioning Policy Form","value":"Role"},{"name":"Workflow
Form","value":"Workflow"}],"requestID":null,"retry":false,"retryWait":0,"status":"success","success":true,"warnings":null}
I have re-created this code, I had some errors showing in Firefox using your code directly so I've changed some things.
Running the code below and calling Ext.create("Form.FormTypeDialog", {}).show(); in the console window, then closing the window and repeating does not replicate this issue. Could you try using the code I have and see if you still have the same problem.
Ext.application({
name: 'HelloExt',
launch: function () {
Ext.define('Form.FormTypeDialog', {
extend: 'Ext.Window',
id: 'formTypeDialog',
formId: null,
callbackFunction: null,
modal: true,
constructor: function (config) {
var me = this;
Ext.apply(this, {
buttons: [
{
text: "#{msgs.form_create_dialog_button_cancel}",
cls: 'secondaryBtn',
handler: function () {
me.close();
}
},
{
text: "#{msgs.form_create_dialog_button_next}",
handler: function () {
// Get selected form type
}
}
]
});
this.callParent(arguments);
},
initComponent: function () {
this.setTitle("#{msgs.form_create_dialog_title}");
this.setHeight(175);
this.setWidth(327);
var myData = [
["Application Provisioning Policy Form", "Application"],
["Role Provisioning Policy Form", "Role"],
["Workflow Form", "Workflow"],
];
var formTypeStore = Ext.create("Ext.data.ArrayStore", {
fields: [
'name',
'value'
],
data: myData,
storeId: "myStore"
});
this.form = Ext.create("Ext.form.Panel", {
style: 'padding:15px;background-color:#fff',
border: false,
bodyBorder: false,
items: [
Ext.create("Ext.form.Label", {
text: "#{msgs.form_create_dialog_select_type_label}",
margin: "25 10 25 5"
}),
Ext.create("Ext.form.ComboBox", {
id: 'createformTypeCombo',
margin: "8 10 25 5",
allowBlank: false,
forceSelection: true,
editable: false,
store: formTypeStore,
valueField: 'value',
displayField: 'name',
width: 260,
emptyText: '#{msgs.form_create_dialog_select_type}'
})
]
});
this.items = [
this.form
];
this.callParent(arguments);
}
});
Ext.create('Ext.Button', {
text: 'Click me',
renderTo: Ext.getBody(),
handler: function() {
Ext.create("Form.FormTypeDialog", {}).show();
}
});
}
});
You can also play around with this code using / forking from this Fiddle
It is not clear what your problem is.
I use remote combo follows:
Ext.define('ComboRemote', {
extend: 'Ext.form.ComboBox',
xtype: 'ComboRemote',
emptyText: 'empty',
width: 75,
displayField: 'name',
valueField: 'id',
store: {
model: 'ComboModel',
proxy: {
type: 'rest',
url: '/serv/Res',
extraParams: {
query: ''
},
reader: {
root: "result", type: 'json'
}
},
autoLoad: true,
},
queryMode: 'remote',
pageSize: false,
lastQuery: '',
minChars: 0});
Ext.define('ComboModel', {
extend: 'Ext.data.Model',
fields: [
'id',
'name'
]});
I hope to help
Try these possible solutions
1. Make AutoLoad property for store as true.
2. Add delay of some ms
My question s in relation to the possible answer in this post Sencha Touch 2 - How to get form values?
Im having the same issue trying to retrieve the values from a form in a View using a Controller.
My current error is Uncaught TypeError: Object # has no method 'getValues'
View:
Ext.define("App.view.Login", {
extend: 'Ext.form.Panel',
requires: [
'Ext.field.Password'
],
id: 'loginview',
config: {
items: [{
xtype: 'titlebar',
title: 'Login',
docked: 'top'
},
{
xtype: 'fieldset',
id: 'loginForm',
defaults: {
required: true
},
items: [{
items: [{
xtype: 'textfield',
name: 'username',
label: 'Username:'
},
{
xtype: 'passwordfield',
name: 'password',
label: 'Password:'
}]
}]
},
{
xtype: 'toolbar',
layout: {
pack: 'center'
}, // layout
ui: 'plain',
items: [{
xtype: 'button',
text: 'Register',
id: 'register',
ui: 'action',
}, {
xtype: 'button',
text: 'Login',
id: 'login',
ui: 'confirm',
}] // items (toolbar)
}]
}
});
Controller:
Ext.define('App.controller.Login', {
extend: 'Ext.app.Controller',
requires: [
'App.view.Login',
'Ext.MessageBox'
],
config: {
refs: {
loginForm: '#loginForm',
register: '#register',
login: '#login'
},
control: {
register: {
tap: 'loadRegisterView'
},
login: {
tap: 'loginUser'
}
},
history: null
},
loadRegisterView: function(btn, evt) {
/*var firststep = Ext.create('App.view.Register');
Ext.Viewport.setActiveItem(firststep);*/
},
loginUser: function(btn, evt) {
var values = loginForm.getValues();
console.log(values);
}
});
Thanks
Edit:
So the below code works but its not how i see everyone doing it.
var form = Ext.getCmp('loginview');
console.log(form.getValues());
Everyone else does this.getLoginView().getValues(); . I dont understand "this" is in the wrong scope and where would getLoginView even be declared? No one ever includes this information in their snippets. Here is another example Sencha Touch 2 - How to get form values?
Add xtype in view below the "id":
xtype: 'loginform',
and then replace the reference of loginForm with this:
loginForm: 'loginform',
Your code will work. The mistake you were doing is you were trying to access the method of 'formpanel' in 'fieldset'.
I'm trying to learn how to use Sencha Touch to build web apps. I've been following the tutorial Here and I am a bit stuck. Below have created one controller, two views and a model (All other code is copy & paste from the tutorial). The first view, Index works great. However if I try to access the second, it brings up a blank page, none of the toolbar buttons work and it doesn't fire the alert.
If I do comment out the line this.application.viewport.setActiveItem(this.editGyms);, the alert will fire, but obviously, it doesn't render the page.
I've looked at a couple other tutorials, and they seem to also be using the setActiveItem member to switch views.. Am I missing something, or do I have to somehow deactivate the first view to activate the second or something?
HomeController.js
Ext.regController('Home', {
//Index
index: function()
{
if ( ! this.indexView)
{
this.indexView = this.render({
xtype: 'HomeIndex',
});
}
this.application.viewport.setActiveItem(this.indexView);
},
editGyms: function()
{
if ( ! this.editGyms)
{
this.editGyms = this.render({
xtype: 'EditGymStore',
});
}
this.application.viewport.setActiveItem(this.editGyms);
Ext.Msg.alert('Test', "Edit's index action was called!");
},
});
views/home/HomeIndexView.js
App.views.wodList = new Ext.List({
id: 'WODList',
store: 'WODStore',
disableSelection: true,
fullscreen: true,
itemTpl: '<div class="list-item-title"><b>{title}</b></div>' + '<div class="list-item-narrative">{wod}</div>'
});
App.views.HomeIndex = Ext.extend(Ext.Panel, {
items: [App.views.wodList]
});
Ext.reg('HomeIndex', App.views.HomeIndex);
views/home/EditGymStore.js
App.views.EditGymStore = Ext.extend(Ext.Panel, {
html: 'Edit Gyms Displayed Here',
});
Ext.reg('EditGymStore', App.views.EditGymStore);
models/appModel.js
Ext.regModel('WOD', {
idProperty: 'id',
fields: [
{ name: 'id', type: 'int' },
{ name: 'date', type: 'date', dateFormat: 'c' },
{ name: 'title', type: 'string' },
{ name: 'wod', type: 'string' },
{ name: 'url', type: 'string' }
],
validations: [
{ type: 'presence', field: 'id' },
{ type: 'presence', field: 'title' }
]
});
Ext.regStore('WODStore', {
model: 'WOD',
sorters: [{
property: 'id',
direction: 'DESC'
}],
proxy: {
type: 'localstorage',
id: 'wod-app-localstore'
},
// REMOVE AFTER TESTING!!
data: [
{ id: 1, date: new Date(), title: '110806 - Title1', wod: '<br/><br/>Desc1</br><br/>' },
{ id: 1, date: new Date(), title: '110806 - Title1', wod: '<br/><br/>Desc2</br><br/>' }
]
});
viewport.js with toolbar
App.views.viewport = Ext.extend(Ext.Panel, {
fullscreen: true,
layout: 'card',
cardSwitchAnimation: 'slide',
scroll: 'vertical',
styleHtmlContent: true,
style: 'background: #d8e2ef',
dockedItems: [
{
xtype: 'toolbar',
title: 'The Daily WOD',
buttonAlign: 'right',
items: [
{
id: 'loginButton',
text: 'Login',
ui: 'action',
handler: function() {
Ext.Msg.alert('Login', "This will allow you to Login!");
}
},
{
xtype: 'spacer'
},
{
xtype: 'button',
iconMask: true,
iconCls: 'refresh',
ui: 'action',
handler: function() {
Ext.Msg.alert('Refresh', "Refresh!");
}
}]
},
],
});
Thanks for the help!!
In HomeController.js your action function (editGyms) is the same name as the variable you're using for your view (this.editGyms) so when it tries to setActiveItem(this.editGyms) its actually passing the controllers action function rather than the results of this.render({...})
Either change the name of the controller action or change the name of the variable you use to hold the view.. like
editGyms: function() {
if ( ! this.editGymView) {
this.editGymView = this.render({
xtype: 'EditGymStore',
});
}
this.application.viewport.setActiveItem(this.editGymView);
Ext.Msg.alert('Test', "Edit's index action was called!");
}
I am colleagues with the guy that wrote the tutorial you are referring to. You should add a comment on that post because I described your problem to him and he said that he knows the solution.
You can just add a link to this page so that you won't need to describe everything again.
Also he will (very) soon publish the 3rd part of that tutorial that will cover some similar things.
I'm having trouble understanding how I need to define and use the MVC model for my test EXTjs4 app. Consider the following structure.
app.js
Ext.application({
name: 'AM',
appFolder: 'app',
controllers: ['Cards', 'Fourscrum'],
launch: function () {
Ext.create('Ext.container.Viewport', {
defaults: { flex: 1 },
layout: {
type: 'hbox',
align: 'stretch',
},
items:
[
Ext.widget('Fourscrum')
]
});
Controller:
Cards.js
Ext.define('AM.controller.Cards', {
extend: 'Ext.app.Controller',
stores: ['BacklogCards', 'InprogressCards', 'ReviewCards', 'DoneCards', 'Cards', 'Priorities', 'Sizes'],
models: ['Card', 'Priority', 'Size'],
views: ['card.List', 'priority.prioritycombo', 'card.Edit'],
Fourscrum.js
Ext.define('AM.controller.Fourscrum', {
extend: 'Ext.app.Controller',
stores: ['BacklogCards', 'InprogressCards', 'ReviewCards', 'DoneCards', 'Cards', 'Priorities', 'Sizes'],
models: ['Card', 'Priority', 'Size'],
views: ['scrum.Fourscrum', 'card.List'],
view.scrum.Fourscrum.js
Ext.define('AM.view.scrum.Fourscrum', { // *** Variable
extend: 'Ext.panel.Panel',
alias: 'widget.Fourscrum', // *** Variable
width: 400,
height: 300,
layout: 'column',
title: 'Scrum', // *** Variable
items:
[
Ext.widget('cardlist',
{
alias: 'widget.backlogcardlist',
title: "Backlog",
store: 'BacklogCards'
}),
Ext.widget('cardlist',
{
alias: 'widget.backlogcardlist',
title: "Backlog",
store: 'BacklogCards'
}),
Ext.widget('cardlist',
{
alias: 'widget.inprogresscardlist',
title: "In Progress",
store: "InprogressCards"
}),
Ext.widget('cardlist',
{
alias: 'widget.reviewcardlist',
title: "Review",
store: "ReviewCards"
}),
Ext.widget('cardlist',
{
alias: 'widget.donecardlist',
title: "Done",
store: "DoneCards"
})
]
});
My ideal structure for this app is as follows:
Viewport defined (inside app.js)
which contains a Fourscrum.js view (which is just a panel)
which contains 4 different List.js views (which are just grids).
Trying to accomplish this, I currently get a few errors when i start messing with the above code:
Item undefined
namespace undefined
Does anyone know why this doesn't work?
PS. I can get this example to work if I replace my 'cardlist' widgets with panels directly defined in the Fourscrum view.
PPS. This also works properly if I forego the Fourscrum container panel all together :(
EDIT:
I felt my explanation was a little unclear so I've uploaded an image to help describe the program. I'm not sure where I need to define the stores, models, and views with this nested structure. So I've repeated it in both controllers. I hope that's not what is causing the problem.
EDIT2:
Ext.define('AM.view.card.List', {
extend: 'Ext.grid.Panel',
alias: 'widget.cardlist',
//title: 'List',
//store: 'Cards',
//multiSelect: true,
viewConfig: {
plugins: {
ptype: 'gridviewdragdrop',
dragGroup: 'ddzone',
dropGroup: 'ddzone'
}
},
// selType: 'cellmodel',
// plugins: [
// Ext.create('Ext.grid.plugin.CellEditing', {
// clicksToEdit: 1
// })
// ],
columns: [
{
header: 'ID',
dataIndex: 'external_id',
field: 'textfield',
width: 30
},
{
header: 'Name',
dataIndex: 'name',
field: 'textfield',
width: 150
},
{
header: 'Priority',
dataIndex: 'priority_id',
renderer: function (value) {
var display = '';
Ext.data.StoreManager.get("Priorities").each(function (rec) {
if (rec.get('id') === value) {
display = rec.get('short_name');
return false;
}
});
return display;
},
width: 60,
field: { xtype: 'PriorityCombo' }
},
{
header: 'Size',
dataIndex: 'size_id',
renderer: function (value) {
var display = '';
Ext.data.StoreManager.get("Sizes").each(function (rec) {
if (rec.get('id') === value) {
display = rec.get('short_name');
return false;
}
});
return display;
},
width: 60
},
{
xtype: 'actioncolumn',
width: 16,
items: [{
icon: 'Styles/Images/zoom.png', // Use a URL in the icon config
tooltip: 'Zoom In',
handler: function (grid, rowIndex, colIndex) {
var rec = grid.getStore().getAt(rowIndex);
alert("Edit " + rec.get('name'));
}
}]
}
]
});
I think I see a big problem in your code (if you pasted all of it).
In your view definitions if you are extending Ext components you MUST have the following function that ends in the callParent method like below.
initComponent: function() {
this.items = this.buildMyItems();
this.callParent(arguments);
},
buildMyItems: function(){
//my code
}
Robodude,
According to the Class guide on Sencha.com all widgets must be contained in properly named class files. I don't think you can simultaneously define and create your widgets in the panel definition.
Split out your definitions from the panel config. Also dont forget to enable the auto loader:
Ext.Loader.setConfig({
enabled : true
});