57 lines
2.4 KiB
JavaScript
57 lines
2.4 KiB
JavaScript
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/*
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* Ext JS Library 2.3.0
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* Copyright(c) 2006-2009, Ext JS, LLC.
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* licensing@extjs.com
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*
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* http://extjs.com/license
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*/
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/**
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* @class Ext.data.JsonStore
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* @extends Ext.data.Store
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* Small helper class to make creating Stores for remotely-loaded JSON data easier. JsonStore is pre-configured
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* with a built-in {@link Ext.data.HttpProxy} and {@link Ext.data.JsonReader}. If you require some other proxy/reader
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* combination then you'll have to create a basic {@link Ext.data.Store} configured as needed.<br/>
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<pre><code>
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var store = new Ext.data.JsonStore({
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url: 'get-images.php',
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root: 'images',
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fields: ['name', 'url', {name:'size', type: 'float'}, {name:'lastmod', type:'date'}]
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});
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</code></pre>
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* This would consume a returned object of the form:
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<pre><code>
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{
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images: [
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{name: 'Image one', url:'/GetImage.php?id=1', size:46.5, lastmod: new Date(2007, 10, 29)},
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{name: 'Image Two', url:'/GetImage.php?id=2', size:43.2, lastmod: new Date(2007, 10, 30)}
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]
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}
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</code></pre>
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* An object literal of this form could also be used as the {@link #data} config option.
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* <b>Note: Although they are not listed, this class inherits all of the config options of Store,
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* JsonReader.</b>
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* @cfg {String} url The URL from which to load data through an HttpProxy. Either this
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* option, or the {@link #data} option must be specified.
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* @cfg {Object} data A data object readable by this object's JsonReader. Either this
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* option, or the {@link #url} option must be specified.
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* @cfg {Array} fields Either an Array of field definition objects as passed to
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* {@link Ext.data.Record#create}, or a {@link Ext.data.Record Record} constructor created using {@link Ext.data.Record#create}.<br>
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* <p>This config is used to create the <tt>recordType</tt> parameter to the {@link Ext.data.JsonReader#JsonReader JsonReader}
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* constructor that is implicitly called, and creates the {@link Ext.data.Record Record definition} used by the Store.
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* @constructor
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* @param {Object} config
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*/
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Ext.data.JsonStore = function(c){
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/**
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* @cfg {Ext.data.DataReader} reader @hide
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*/
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/**
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* @cfg {Ext.data.DataProxy} proxy @hide
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*/
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Ext.data.JsonStore.superclass.constructor.call(this, Ext.apply(c, {
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proxy: c.proxy || (!c.data ? new Ext.data.HttpProxy({url: c.url}) : undefined),
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reader: new Ext.data.JsonReader(c, c.fields)
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}));
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};
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Ext.extend(Ext.data.JsonStore, Ext.data.Store);
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