ExtJS Ext.data.JsonStore loadData
Can you help me solve the issue I'm running into with the loadData function as part of the Ext.data.JsonStore? I've created a basic example of the problem I'm running into:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Ext JSON example</title>
<script type="text/javascript" src="lib/ext-base.js"></script>
<script type="text/javascript" src="lib/ext-all.js"></script>
<script>
function example() {
var exampleData = "{'exampleJSON' : {'exampleArray':[{'exampleID':1,'name':'Fred','description':'a guy'},{'exampleID':2,'name':'sue','description':'a girl'}]}}";
var exampleStore = new Ext.data.JsonStore({
data: new Ext.data.MemoryProxy(exampleData),
autoLoad: false,
root: 'exampleJSON.exampleArray',
fields: [
{mapping: "exampleID", name: 'exampleID'},
{mapping: "name", name: 'name'},
{mapping: "description", name: 'description'}
],
listener: {
load: function (oStore, ayRecords, oOptions )
{
alert('loaded successfully');
}
}
});
exampleStore.loadData(exampleData);
}
</script>
</head>
<body>
<center><button onclick="example();">Click for Example</button></center>
</body>
</html>
The problem I'm running into is I'm getting this error reported by Firebug: obj.exampleJSON is undefined This is likely being caused when I set the root as 'exampleJSON.exampleArray'. Can someone help point out what I'm doing wrong?
(using ExtJs 4.1.0)
Thanks guys.
EDIT: to set this up, place ext-all.js and ext-base.js in a lib folder.
Answer
Your code is wrong in a number of places:
Ext.define('MyModel', {
extend: 'Ext.data.Model',
fields: ['exampleID', 'name', 'description']
});
function example() {
var exampleData = [{
exampleID: 1,
name: 'Fred',
description: 'a guy'
}, {
exampleID: 2,
name: 'sue',
description: 'a girl'
}];
var exampleStore = new Ext.data.Store({
model: 'MyModel',
data: exampleData
});
}
Also, there's no ext-base file for Ext 4, so it's a redundant include.