[619] | 1 | /* |
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| 2 | * Ext JS Library 2.2.1 |
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| 3 | * Copyright(c) 2006-2009, Ext JS, LLC. |
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| 4 | * licensing@extjs.com |
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| 5 | * |
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| 6 | * http://extjs.com/license |
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| 7 | */ |
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| 8 | |
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| 9 | /** |
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| 10 | * @class Ext.data.JsonStore |
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| 11 | * @extends Ext.data.Store |
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| 12 | * Small helper class to make creating Stores for remotely-loaded JSON data easier. JsonStore is pre-configured |
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| 13 | * with a built-in {@link Ext.data.HttpProxy} and {@link Ext.data.JsonReader}. If you require some other proxy/reader |
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| 14 | * combination then you'll have to create a basic {@link Ext.data.Store} configured as needed.<br/> |
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| 15 | <pre><code> |
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| 16 | var store = new Ext.data.JsonStore({ |
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| 17 | url: 'get-images.php', |
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| 18 | root: 'images', |
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| 19 | fields: ['name', 'url', {name:'size', type: 'float'}, {name:'lastmod', type:'date'}] |
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| 20 | }); |
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| 21 | </code></pre> |
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| 22 | * This would consume a returned object of the form: |
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| 23 | <pre><code> |
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| 24 | { |
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| 25 | images: [ |
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| 26 | {name: 'Image one', url:'/GetImage.php?id=1', size:46.5, lastmod: new Date(2007, 10, 29)}, |
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| 27 | {name: 'Image Two', url:'/GetImage.php?id=2', size:43.2, lastmod: new Date(2007, 10, 30)} |
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| 28 | ] |
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| 29 | } |
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| 30 | </code></pre> |
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| 31 | * An object literal of this form could also be used as the {@link #data} config option. |
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| 32 | * <b>Note: Although they are not listed, this class inherits all of the config options of Store, |
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| 33 | * JsonReader.</b> |
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| 34 | * @cfg {String} url The URL from which to load data through an HttpProxy. Either this |
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| 35 | * option, or the {@link #data} option must be specified. |
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| 36 | * @cfg {Object} data A data object readable by this object's JsonReader. Either this |
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| 37 | * option, or the {@link #url} option must be specified. |
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| 38 | * @cfg {Array} fields Either an Array of field definition objects as passed to |
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| 39 | * {@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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| 40 | * <p>This config is used to create the <tt>recordType</tt> parameter to the {@link Ext.data.JsonReader#JsonReader JsonReader} |
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| 41 | * constructor that is implicitly called, and creates the {@link Ext.data.Record Record definition} used by the Store. |
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| 42 | * @constructor |
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| 43 | * @param {Object} config |
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| 44 | */ |
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| 45 | Ext.data.JsonStore = function(c){ |
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| 46 | /** |
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| 47 | * @cfg {Ext.data.DataReader} reader @hide |
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| 48 | */ |
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| 49 | /** |
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| 50 | * @cfg {Ext.data.DataProxy} proxy @hide |
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| 51 | */ |
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| 52 | Ext.data.JsonStore.superclass.constructor.call(this, Ext.apply(c, { |
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| 53 | proxy: c.proxy || (!c.data ? new Ext.data.HttpProxy({url: c.url}) : undefined), |
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| 54 | reader: new Ext.data.JsonReader(c, c.fields) |
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| 55 | })); |
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| 56 | }; |
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| 57 | Ext.extend(Ext.data.JsonStore, Ext.data.Store); |
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