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Ext.Defer gives getAsynchronousLoad Error

I've just defined a combobox. Firstly it loads a countrylist and when select a value it's fire a change event which doing a ajax query to DB within searching service;
The thing; this configuration works pretty well when I click and open combobox items. But when I'm typing to combobox's field it's fires listener's store.load and because of none of country selected yet, the search query url gives not found errors of course.
{
xtype: 'countrycombo',
itemId: 'countryName',
name:'country',
afterLabelTextTpl: MyApp.Globals.required,
allowBlank: false,
flex: 1,
// forceSelection: false,
// typeAhead: true,
// typeAheadDelay: 50,
store: {
proxy: {
type: 'ajax',
// isSynchronous: true,
url: MyApp.Globals.getUrl() + '/country/list?limit=250',
// timeout: 300000,
reader: {
type: 'json',
rootProperty: 'data'
}
},
pageSize: 0,
sorters: 'description',
autoLoad: true
}
,
listeners: {
change: function (combo, countryId) {
var cityStore = Ext.getStore('cityCombo');
cityStore.getProxy()
.setUrl(MyAppp.Globals.getUrl() + '/city/view/search?query=countryid:'+ countryId);
// Ext.defer(cityStore.load, 100);
cityStore.load();
}
}
},
I've tried several things as you see in code above to set a delay/timeout for load during typing to combobox text field; Ext.defer, timeoutconfig on proxy, typeAhead config on combo but none of them worked!
I thought that Ext.defer is the best solution but it gives this error:
Uncaught TypeError: me.getAsynchronousLoad is not a function at load (ProxyStore.js?_dc=15169)
How can I set a delay/timeout to combobox to fires load function?

Instead of Ext.defer(cityStore.load, 100);
try using this :
Ext.defer(function(){
cityStore.load
}, 300);
If this doest work, try increasing your delay
or you can put a logic before loading
like this :
if(countryId.length == 5){
cityStore.load
}
This will ensure that you Entered the right values before loading
Hope this helps, and Goodluck on your project

well.. I've tried to implement #Leroy's advice but somehow Ext.defer did not fire cityStore.load. So I keep examine similar situations on google and found Ext.util.DelayedTask
So configured the listerens's change to this and it's works pretty well;
listeners: {
change: function (combo, countryId) {
var alert = new Ext.util.DelayedTask(function () {
Ext.Msg.alert('Info!', 'Please select a country');
});
var cityStore = Ext.getStore('cityCombo');
cityStore.getProxy().setUrl(MyApp.Globals.getUrl() + '/city/view/search?query=countryid:'+ countryId);
if (typeof countryId === 'number') {
cityStore.load();
} else {
alert.delay(8000);
}
}
}

Open only one popup window (panel)

So i have this function onDisplayError which is called each time if request fails. This means if user press save button and 3 request are failing i currently getting 3 popup messages. My goal is that this function checks if my popup window is already opened. If it is then i will append errors in my already opened window otherwise it should open this error popup
onDisplayError: function (response, message) {
var errorPanel = Ext.create('myApp.view.popup.error.Panel',{
shortMessage: message,
trace: response
});
if(errorPanel.rendered == true){
console.log('Do some other stuff');
}else{
errorPanel.show();
}
},
This is Panel.js
Ext.define('myApp.view.popup.error.Panel', {
extend: 'Ext.panel.Panel',
requires: [
'myApp.view.popup.error.PanelController'
],
controller: 'myApp_view_popup_error_PanelController',
title: 'Fail',
glyph: 'xf071#FontAwesome',
floating: true,
draggable: true,
modal: true,
closable: true,
buttonAlign: 'center',
layout: 'border',
shortMessage: false,
width: 800,
height: 200,
initComponent: function() {
this.items = [
this.getMessagePanel(),
this.getDetailsPanel()
];
this.callParent(arguments);
},
getMessagePanel: function() {
if(!this.messagePanel) {
var message = this.shortMessage;
this.messagePanel = Ext.create('Ext.panel.Panel', {
bodyPadding: 5,
height: 200,
region: 'center',
border: false,
html: message
});
}
return this.messagePanel;
},
getDetailsPanel: function() {
if(!this.detailsPanel) {
this.detailsPanel = Ext.create('Ext.panel.Panel', {
title: 'Details',
hidden: true,
region: 'south',
scrollable: true,
bodyPadding: 5,
height: 400,
html: '<pre>' + JSON.stringify(this.trace, null, 4) + '</pre>'
});
}
return this.detailsPanel;
}
The problem is that i'm still getting multiple popups displayed. I think that the problem is that var errorPanel loses reference so it can't check if this popup (panel) is already opened. How to achieve desired effect? I'm working with extjs 6. If you need any additional information's please let me know and i will provide.

You could provide to your component definition a special xtype.
Ext.define('myApp.view.popup.error.Panel', {
extend: 'Ext.panel.Panel',
xtype:'myxtype'
and then you could have a very condensed onDisplayError function:
onDisplayError: function (response, message) {
var errorPanel = Ext.ComponentQuery.query('myxtype')[0] || Ext.widget('myxtype');
errorPanel.appendError(message, response)
errorPanel.show();
},
The panel's initComponent function should initialize an empty window, and appendError should contain your logic to append an error (which may be the first error as well as the second or the third) to the list of errors in the panel.

Using Ext.create will always create a new instance of that class.
You can use the reference config to create a unique reference to the panel.
Then, use this.lookupReference('referenceName') in the controller to check if the panel already exists, and show().
You also have to set closeAction: 'hide' in the panel, to avoid panel destruction on close.
Otherwise, you can save a reference to the panel in the controller
this.errorPanel = Ext.create('myApp.view.popup.error.Panel' ....
Then, if (this.errorPanel) this.errorPanel.show();
else this.errorPanel = Ext.create...

Selectize: Setting Default Value in onInitialize with setValue

I have a web application with multiple Selectize objects initialized on the page. I'm trying to have each instance load a default value based on the query string when the page loads, where ?<obj.name>=<KeywordID>. All URL parameters have already been serialized are are a dictionary call that.urlParams.
I know there are other ways to initializing Selectize with a default value I could try; but, I'm curious why calling setValue inside onInitialize isn't working for me because I'm getting any error messages when I run this code.
I'm bundling all this JavaScript with Browserify, but I don't think that's contributing to this problem.
In terms of debugging, I've tried logging this to the console inside onInititalize and found that setValue is up one level in the Function.prototype property, the options property is full of data from load, the key for those objects inside options corresponds to the KeywordID. But when I log getValue(val) to the console, I get an empty string. Is there a way to make this work or am I ignoring something about Selectize or JavaScript?
module.exports = function() {
var that = this;
...
this.selectize = $(this).container.selectize({
valueField: 'KeywordID', // an integer value
create: false,
labelField: 'Name',
searchField: 'Name',
preload: true,
allowEmptyOptions: true,
closeAfterSelect: true,
maxItems: 1,
render: {
option: function(item) {
return that.template(item);
},
},
onInitialize: function() {
var val = parseInt(that.urlParams[that.name], 10); // e.g. 5
this.setValue(val);
},
load: function(query, callback) {
$.ajax({
url: that.url,
type: 'GET',
error: callback,
success: callback
})
}
});
};
...

After sprinkling in some console.logs into Selectize.js, I found that the ajax data hadn't been imported, when the initialize event was triggered. I ended up finding a solution using jQuery.when() to make setValue fire after the data had been loaded, but I still wish I could find a one-function-does-one-thing solution.
module.exports = function() {
var that = this;
...
this.selectize = $(this).container.selectize({
valueField: 'KeywordID', // an integer value
create: false,
labelField: 'Name',
searchField: 'Name',
preload: true,
allowEmptyOptions: true,
closeAfterSelect: true,
maxItems: 1,
render: {
option: function(item) {
return that.template(item);
},
},
load: function(query, callback) {
var self = this;
$.when( $.ajax({
url: that.url,
type: 'GET',
error: callback,
success: callback
}) ).then(function() {
var val = parseInt(that.urlParams[that.name], 10); // e.g. 5
self.setValue(val);
});
}
});
};
...

You just need to add the option before setting it as the value, as this line in addItem will be checking for it:
if (!self.options.hasOwnProperty(value)) return;
inside onInitialize you would do:
var val = that.urlParams[that.name]; //It might work with parseInt, I haven't used integers in selectize options though, only strings.
var opt = {id:val, text:val};
self.addOption(opt);
self.setValue(opt.id);

Instead of using onInitialize you could add a load trigger to the selectize. This will fire after the load has finished and will execute setValue() as expected.
var $select = $(this).container.selectize({
// ...
load: function(query, callback) {
// ...
}
});
var selectize = $select[0].selectize;
selectize.on('load', function(options) {
// ...
selectize.setValue(val);
});
Note that for this you first have to get the selectize instanze ($select[0].selectize).

in my case it need refresh i just added another command beside it
$select[0].selectize.setValue(opt);
i added this
$select[0].selectize.options[opt].selected = true;
and changes applied
but i dont know why?

You can initialize each selectize' selected value by setting the items property. Fetch the value from your querystring then add it as an item of the items property value:
const selectedValue = getQueryStringValue('name') //set your query string value here
$('#sel').selectize({
valueField: 'id',
labelField: 'title',
preload: true,
options: [
{ id: 0, title: 'Item 1' },
{ id: 1, title: 'Item 2' },
],
items: [ selectedValue ],
});
Since it accepts array, you can set multiple selected items

Custom HTML - Rally TreeGrid

Hello i am receiving an error from the code below, and not sure why because i thought i was defining it. I want to make sure my code is working properly before i add complexity to the report.
launch: function() {
this._createGrid();
},
_createGrid: function() {
Ext.create('Rally.data.wsapi.TreeStoreBuilder').build({
models: ['PortfolioItem/Initiative'],
autoLoad: true,
enableHierarchy: true
}).then({
success: function(store) {
var myGrid = Ext.create('Ext.Container', {
items: [{
xtype: 'rallytreegrid',
columnCfgs: ['Name', 'Owner'],
store: store
}],
renderTo: Ext.getBody()
});
}
});
this.add(myGrid);
},
});
"Error: success callback for Deferred transformed result of Deferred transformed result of Deferred threw: ReferenceError: myGrid is not defined"
I am new to this so any help would be greatly appreciated!

You issue you're running into is probably due to some confusion in how components and containers behave in ExtJS combined with the this scoping issue mentioned in the answer above.
Here's how I would write it:
_createGrid: function() {
Ext.create('Rally.data.wsapi.TreeStoreBuilder').build({
models: ['PortfolioItem/Initiative'],
autoLoad: true,
enableHierarchy: true
}).then({
success: function(store) {
//The app class is already a container, so you can just
//directly add the grid to it
this.add({
xtype: 'rallytreegrid',
itemId: 'myGrid',
columnCfgs: ['Name', 'Owner'],
store: store
});
},
scope: this //make sure the success handler executes in correct scope
});
}
You also don't need to feel like you need to keep a myGrid reference around since you can always find it using the built-in component querying feature of ExtJS:
var myGrid = this.down('#myGrid');

You're defining myGrid inside of the success function scope, then trying to use it at the end of the _createGrid function, where it is undefined. I assume you're trying to do it that way because this is not bound correctly inside the success function. Try this instead:
_createGrid: function() {
var self = this;
Ext.create('Rally.data.wsapi.TreeStoreBuilder').build({
models: ['PortfolioItem/Initiative'],
autoLoad: true,
enableHierarchy: true
}).then({
success: function(store) {
var myGrid = Ext.create('Ext.Container', {
items: [{
xtype: 'rallytreegrid',
columnCfgs: ['Name', 'Owner'],
store: store
}],
renderTo: Ext.getBody()
});
self.add(myGrid);
}
});
},

ExtJS 4 TreePanel autoload

I have an Ext.tree.Panel which is has a TreeStore. This tree is in a tab. The problem is that when my application loads all of the trees used in the application load their data, even though the store is on autoLoad: false.
How could I prevent autoloading on the tree?
Ext.define('...', {
extend: 'Ext.container.Container',
alias: 'widget.listcontainer',
layout: {
type: 'vbox',
align: 'stretch'
},
items: [{
xtype: 'container',
html: "...",
border: 0
}, {
xtype: '...',
flex: 1,
bodyPadding: 5,
margin: '9 0 0 0'
}]
});
Ext.define('...', {
extend: 'Ext.data.TreeStore',
model: '...',
proxy: {
type: 'ajax',
reader: {
type: 'json',
root: 'data'
},
api: {
read: 'some url'
}
}
});
Ext.define('...', {
extend: 'Ext.tree.Panel',
alias: 'widget....',
id: '...',
title: '...',
height: 400,
collapsible: true,
useArrows: true,
rootVisible: false,
multiSelect: true,
singleExpand: true,
autoScroll: true,
store: '...',
columns: [...]
});
P.S. I've found out if I change rootVisible to true on the tree this problem doesn't happen, but then it shows to root node(which I don't want).

I hit the same problem, and to avoid an implicit request, I specified a root inline in the TreeStore's configuration, like:
Ext.create('Ext.data.TreeStore', {
model: '...',
proxy: {
type: 'ajax',
reader: {
type: 'json',
root: 'data'
},
api: {
read : 'some url'
}
folderSort: true,
rootVisible: false,
root: {expanded: true, text: "", "data": []} // <- Inline root
});
After an explicit .load the inline root is overwritten.

If root is invisible then AJAX tree will automatically load first level of hierarchy (as you already proved by yourself).
I think the best way is to make root visible or create tree after some actions. I wrote code that prevent AJAX request that loads data:
var preventTreeLoad = true;
store.on('beforeexpand', function(node) {
if (node == this.getRootNode() && preventTreeLoad) {
Ext.Ajax.abort(this.proxy.activeRequest);
delete this.proxy.activeRequest;
}
}, store);
var b = Ext.create('Ext.Button', {
text: 'Click me',
renderTo: 'btn',
});
b.on('click', function() {
preventTreeLoad = false;
this.load();
}, store);
But I'm not recommended to use this approach. For example, if javascript wasn't so fast - Ajax request may be send (response will not be read but server will execute operation).

You can put a dummy proxy in place when defining the tree, then set the real proxy when you want to begin using the tree/store. For example:
var store = Ext.define('Ext.data.TreeStore', {
...
// dummy proxy to avoid autoLoad on tree store construction
proxy: {
type: 'ajax',
url: ''
},
...
);
Then, when you want to use it for the first time,
store.setProxy({
type: 'ajax',
url: 'http://some/real/url',
...
});
store.load();

You can solve it with a small override:
Ext.override(Ext.tree.View,
{
setRootNode: function(node)
{
var me = this;
me.store.setNode(node);
me.node = node;
if (!me.rootVisible && me.store.autoLoad)
{
node.expand();
}
}
});
afterlayout you need a load()

Adding to what XenoN said (though many years later when I hit the same issue)
If the expanded property is set to true in the store definition, it will auto load even if autoLoad is set to false. this is unique to a TreeStore.
However, if we do want the store to load and expand we need to
Set expanded = true sometimes in code after creation (when we want) this also fires the loading of the previously created store.
setting store.setRoot({expanded:true}); within the consumer of the store which is Ext.tree.Panel.
This will load the store when you want it to load it.
seems like after that, store.load() is redundant since the expanded = true makes the store's proxy to load up and go to the server. weird, I know.

Simplest way is setting Store's root property
Ext.create('Ext.data.TreeStore', {
....
autoLoad:false,
root: {
expanded: false
}
});

Try with children and autoLoad : false :
root: {
children : []
}