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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