Develop Reference

Loading elements in Ext Panel using Ext ComponentLoader

I have defined a model type that represent an object with xtype 'image'. Now i'm trying to load this objects in Ext.Panel from JSON using ComponentLoader:
Ext.define('ItemModel', {
extend: 'Ext.data.Model',
idProperty: 'itemModel',
fields: [{
name: 'id',
type: 'int'
},{
name: 'xtype',
type: 'string'
},{
name: 'src',
type: 'string'
}]
});
var previews = Ext.create('Ext.Panel',{
layout: 'column',
height: 500,
items: {
loader:{
autoLoad : true,
url: 'php/read.php',
renderer: "component"
}
}
});
But i get such error:
TypeError: me.el is null
me.container = Ext.get(me.el.dom.parentNode);
JSON which returned by read.php looks just like this:
{"items":[{"id":0,"xtype":"image","src":"img\/newalbum.png"},{"id":1,"xtype":"image","src":"img\/newalbum1.png"}]}
But if i'm create a 'store' with 'reader', and trying iterate loaded objects, it's works fine:
Ext.define('ItemModel', {
extend: 'Ext.data.Model',
idProperty: 'itemModel',
fields: [{
name: 'id',
type: 'int'
},{
name: 'xtype',
type: 'string'
},{
name: 'src',
type: 'string'
}]
});
Ext.define('ItemModelStore', {
extend: 'Ext.data.Store',
model: 'ItemModel',
proxy: {
type: 'ajax',
url: 'php/read.php',
reader: {
type: 'json',
root: 'items'
}
}
});
var itemModelStore = Ext.create('ItemModelStore');
itemModelStore.load(function() {
itemModelStore.each(function(record){
alert(record.get('src'));
});
});

ExtJS 4.2.0 undefined model

I thought I had defined a model for my store, but my console and also my application seem to disagree.
My code looks something like this:
Ext.define("Deeper", {
extend: 'Ext.data.Model',
fields: [{
name: 'ID',
type: 'int'
}, {
name: 'someoneElsesID',
type: 'int'
}, {
name: 'anotherID',
type: 'int'
}],
belongsTo: 'Higher'
});
Ext.define("Higher", {
extend: 'Ext.data.Model',
fields: [{
name: 'name',
type: 'string'
}, {
name: 'status',
type: 'int'
}],
hasMany: {
model: 'Deeper',
name: 'deeper'
}
});
after that, I created the following store:
var store = Ext.create('Ext.data.Store', {
model: 'Higher',
autoLoad: true,
proxy: {
type: 'ajax',
url: 'some/correct/url.json',
reader: {
type: 'json',
root: 'name'
}
}
});
My grid shows inline data correctly, so I tried console.debug(store)
The result is:
model: undefined
and
modelDefaults: null
So where did I go wrong?

Laoding JSON data into Ext.data.Tree store on click on a button

I have created a tree panel in ExtJs 4.1 and that panel is associated with store. I have some JSON data available in a variable. How can I load that into into tree store on click of a button.
Ext.define('User', {
extend: 'Ext.data.Model',
fields: [
{name: 'id', type: 'int'},
{name: 'name', type: 'string'},
{name: 'phone', type: 'string', mapping: 'phoneNumber'}
]
});
var data = {
users: [
{
id: 1,
name: 'Ed Spencer',
phoneNumber: '555 1234'
},
{
id: 2,
name: 'Abe Elias',
phoneNumber: '666 1234'
}
]
};
//note how we set the 'root' in the reader to match the data structure above
var store = Ext.create('Ext.data.TreeStore', {
autoLoad: false,
model: 'User',
proxy: {
type: 'memory',
}
});
How can I load data on click of a button?

var store = Ext.create('Ext.data.TreeStore', {
model: yourModel, // make sure the model fits
proxy: {
data : yourData, // this is your var with json
type: 'memory',
reader: {
type: 'json'
}
},
});
Check out the answers over here: Load static data to Ext.data.TreeStore
To run your code on a button click, do:
Ext.create('Ext.Button', {
text: 'Click me',
handler: function() {
// load the store
}
});

Try store.data = data, It appears that there is no methods like 'setData', just try store.data = data maybe it will work

you can use store.loadData method on buttons click. Check doc here.

JSON Store can't load PHP data - EXTJS 4

Ext.define('GoogleMarkerModel', {
extend: 'Ext.data.Model',
fields: [
{name: 'ID', type: 'int'},
{name: 'Locating', type: 'int'},
{name: 'MainPower', type: 'int'},
{name: 'Acc', type: 'int'},
{name: 'PowerOff', type: 'int'},
{name: 'Alarm', type: 'int'},
{name: 'Speed', type: 'int'},
{name: 'Direction', type: 'int'},
{name: 'Latitude', type: 'float'},
{name: 'Longitude', type: 'float'},
{name: 'DateTime', type: 'date'},
{name: 'MainID', type: 'int'},
{name: 'IOState', type: 'int'},
{name: 'OilState', type: 'int'}]
});
var MarkerStore = Ext.create('Ext.data.JsonStore', {
model: 'GoogleMarkerModel',
autoLoad: true,
proxy: {
type: 'ajax',
url: 'get-googlemarker.php',
baseParams: { //here you can define params you want to be sent on each request from this store
mainid: 'value1'
},
reader: {
type: 'json',
idProperty:'MainID',
}
}
});
this code i use to call the MarkerStore and passing the parameter mainid with value 1
MarkerStore.load({
params: { //here you can define params on 'per request' basis
mainid: 1,
}
})
when i use web browser to get-googlemarker.php and mainid=1 will return those value
http://localhost/GPS/examples/tabs/get-googlemarker.php?mainid=1
[{"ID":"1808","Locating":"1","MainPower":"0","Acc":"1","PowerOff":"1","Alarm":"128","Speed":"0","Direction":"293","Latitude":"5.391788482666016","Longitude":"100.29693603515625","DateTime":"2013-02-19 15:44:36","MainID":"1","IOState":"0","OilState":"0"}]
but i m trying to list out all data,unfortunately the JSON store are null, i suspect the data are not store in the MarkerStore, below code are i m trying to list out the data,but is nothing write on console FireBug.
MarkerStore.each( function (model) {
console.log( model.get('MainID') );
});
any idea?

Try to remove autoload = true property from the store.

MarkerStore.on('load', function(store, records) {
for (var i = 0; i < records.length; i++) {
console.log(records[i].get('Latitude'));
lati = records[i].get('Latitude');
};
});
should use this code, then will print the data on console. the above question print store data code are wrong,actually data are success saved in JSON store

Your code works, but the main problem is when you call MarkerStore.each the store is empty at this time(Ajax is Asynchronous). Your script is faster as the ajax with the data. If you use the following simple snippet you will see your "mainID".
setTimeout(function(){
MarkerStore.each( function (model) {
console.log( model.get('MainID') );
});
}, 1500, MarkerStore);

Making sure an ExtJS checkboxfield updates its model

I have inherited an ExtJs4 project, and I've got a fairly basic question.
I have a view that has a newly added checkbox field as one of the items, like so:
{
boxLabel: 'Test Message?',
xtype: 'checkboxfield',
id: 'cbTextMessage',
checked: false,
name: 'testMessage',
inputValue: true,
uncheckedValue: false
}
When the record is active, this value changes to the appropriate checked or unchecked state. When creating a new record, the value is set to the value of the checkbox. However, when editing an existing record, the model never gets updated to any value other than the original value.
The model:
Ext.define('PushAdmin.model.Message', {
extend: 'Ext.data.Model',
idProperty: 'id',
requires: ['Proxy.ParameterProxy'],
fields: [
{ name: 'id', type: 'int' },
{ name: 'games', type: 'auto',
convert: function(data, model) {
data = ( data && !Ext.isArray(data) ) ? [data] : data;
return data;
}
},
{ name: 'msgEnglish', type: 'string' },
{ name: 'msgFrench', type: 'string' },
{ name: 'msgSpanish', type: 'string' },
{ name: 'testMessage', type: 'bool' },
{ name: 'sendAt', type: 'date' },
{ name: 'note', type: 'string'},
{ name: 'status', type: 'string' },
],
proxy: {
type: 'rest',
url: '/apnsadmin/rest/Message',
pageParam: undefined,
startParam: undefined,
limitParam: undefined,
reader: {
type: 'json',
root: 'data',
successProperty: 'success'
}
}
});
And finally this is the function that gets called when the save button is clicked.
click: function () {
var grid = this.getQueuedMessagesGrid();
var sm = grid.getSelectionModel();
var selectedRecord = sm.getCount() > 0 ? sm.getSelection()[0] : undefined;
this.getMessageForm().getForm().updateRecord();
var newRecord = this.getMessageForm().getForm().getRecord();
if (selectedRecord!=undefined) {
console.log(selectedRecord);
console.log(newRecord);
selectedRecord.save();
} else {
// New record!
console.log("Saving new record");
grid.getStore().add(newRecord);
newRecord.save();
}
this.getMessageForm().setDisabled(true);
this.getMessageForm().getForm().reset();
}
},
I am aware that things are probably not the proper ExtJS way to do things, but since this is mostly working I am trying not to have to rewrite large chunks of it. I'd just like to know what I'm doing wrong in adding this checkbox/boolean field to the form.