1 <div class="body-wrap" xmlns:ext="http://www.extjs.com"><div class="top-tools"><a class="inner-link" href="#Ext.data.JsonReader-props"><img src="../resources/images/default/s.gif" class="item-icon icon-prop">Properties</a> <a class="inner-link" href="#Ext.data.JsonReader-methods"><img src="../resources/images/default/s.gif" class="item-icon icon-method">Methods</a> <a class="inner-link" href="#Ext.data.JsonReader-events"><img src="../resources/images/default/s.gif" class="item-icon icon-event">Events</a> <a class="inner-link" href="#Ext.data.JsonReader-configs"><img src="../resources/images/default/s.gif" class="item-icon icon-config">Config Options</a> <a class="bookmark" href="../docs/?class=Ext.data.JsonReader"><img src="../resources/images/default/s.gif" class="item-icon icon-fav">Direct Link</a> </div><div class="inheritance res-block"><pre class="res-block-inner"><a href="output/Ext.data.DataReader.html" ext:member="" ext:cls="Ext.data.DataReader">DataReader</a> <img src="resources/elbow-end.gif">JsonReader</pre></div><h1>Class <a href="source/JsonReader.html#cls-Ext.data.JsonReader">Ext.data.JsonReader</a></h1><table cellspacing="0"><tr><td class="label">Package:</td><td class="hd-info">Ext.data</td></tr><tr><td class="label">Defined In:</td><td class="hd-info"><a href="source/JsonReader.html#cls-Ext.data.JsonReader">JsonReader.js</a></td></tr><tr><td class="label">Class:</td><td class="hd-info"><a href="source/JsonReader.html#cls-Ext.data.JsonReader">JsonReader</a></td></tr><tr><td class="label">Subclasses:</td><td class="hd-info"><a href="output/Ext.data.ArrayReader.html" ext:cls="Ext.data.ArrayReader">ArrayReader</a></td></tr><tr><td class="label">Extends:</td><td class="hd-info"><a href="output/Ext.data.DataReader.html" ext:cls="Ext.data.DataReader" ext:member="">DataReader</a></td></tr></table><div class="description"><p>Data reader class to create an Array of <a href="output/Ext.data.Record.html" ext:cls="Ext.data.Record">Ext.data.Record</a> objects
2 from a JSON packet based on mappings in a provided <a href="output/Ext.data.Record.html" ext:cls="Ext.data.Record">Ext.data.Record</a>
5 <pre><code><b>var</b> myReader = <b>new</b> Ext.data.JsonReader({
6 <i>// metadata configuration options:</i>
7 <a href="output/Ext.data.JsonReader.html#Ext.data.JsonReader-idProperty" ext:member="idProperty" ext:cls="Ext.data.JsonReader">idProperty</a>: <em>'id'</em>
8 <a href="output/Ext.data.JsonReader.html#Ext.data.JsonReader-root" ext:member="root" ext:cls="Ext.data.JsonReader">root</a>: <em>'rows'</em>,
9 <a href="output/Ext.data.JsonReader.html#Ext.data.JsonReader-totalProperty" ext:member="totalProperty" ext:cls="Ext.data.JsonReader">totalProperty</a>: <em>'results'</em>,
10 <a href="output/Ext.data.DataReader.html#Ext.data.DataReader-messageProperty" ext:member="messageProperty" ext:cls="Ext.data.DataReader">Ext.data.DataReader.messageProperty</a>: <em>"msg"</em> <i>// The element within the response that provides a user-feedback message (optional)</i>
12 <i>// the fields config option will internally create an <a href="output/Ext.data.Record.html" ext:cls="Ext.data.Record">Ext.data.Record</a></i>
13 <i>// constructor that provides mapping <b>for</b> reading the record data objects</i>
14 <a href="output/Ext.data.DataReader.html#Ext.data.DataReader-fields" ext:member="fields" ext:cls="Ext.data.DataReader">fields</a>: [
15 <i>// map Record's <em>'firstname'</em> field to data object's key of same name</i>
16 {name: <em>'name'</em>},
17 <i>// map Record's <em>'job'</em> field to data object's <em>'occupation'</em> key</i>
18 {name: <em>'job'</em>, mapping: <em>'occupation'</em>}
21 <p>This would consume a JSON data object of the form:</p><pre><code>{
22 results: 2000, <i>// Reader's configured <a href="output/Ext.data.JsonReader.html#Ext.data.JsonReader-totalProperty" ext:member="totalProperty" ext:cls="Ext.data.JsonReader">totalProperty</a></i>
23 rows: [ <i>// Reader's configured <a href="output/Ext.data.JsonReader.html#Ext.data.JsonReader-root" ext:member="root" ext:cls="Ext.data.JsonReader">root</a></i>
24 <i>// record data objects:</i>
25 { <a href="output/Ext.data.JsonReader.html#Ext.data.JsonReader-idProperty" ext:member="idProperty" ext:cls="Ext.data.JsonReader">id</a>: 1, firstname: <em>'Bill'</em>, occupation: <em>'Gardener'</em> },
26 { <a href="output/Ext.data.JsonReader.html#Ext.data.JsonReader-idProperty" ext:member="idProperty" ext:cls="Ext.data.JsonReader">id</a>: 2, firstname: <em>'Ben'</em> , occupation: <em>'Horticulturalist'</em> },
30 <p><b><u>Automatic configuration using metaData</u></b></p>
31 <p>It is possible to change a JsonReader's metadata at any time by including
32 a <b><tt>metaData</tt></b> property in the JSON data object. If the JSON data
33 object has a <b><tt>metaData</tt></b> property, a <a href="output/Ext.data.Store.html" ext:cls="Ext.data.Store">Store</a>
34 object using this Reader will reconfigure itself to use the newly provided
35 field definition and fire its <a href="output/Ext.data.Store.html#Ext.data.Store-metachange" ext:member="metachange" ext:cls="Ext.data.Store">metachange</a>
36 event. The metachange event handler may interrogate the <b><tt>metaData</tt></b>
37 property to perform any configuration required.</p>
38 <p>Note that reconfiguring a Store potentially invalidates objects which may
39 refer to Fields or Records which no longer exist.</p>
40 <p>To use this facility you would create the JsonReader like this:</p><pre><code><b>var</b> myReader = <b>new</b> Ext.data.JsonReader();</code></pre>
41 <p>The first data packet from the server would configure the reader by
42 containing a <b><tt>metaData</tt></b> property <b>and</b> the data. For
43 example, the JSON data object might take the form:</p><pre><code>{
45 <em>"<a href="output/Ext.data.JsonReader.html#Ext.data.JsonReader-idProperty" ext:member="idProperty" ext:cls="Ext.data.JsonReader">idProperty</a>"</em>: <em>"id"</em>,
46 <em>"<a href="output/Ext.data.JsonReader.html#Ext.data.JsonReader-root" ext:member="root" ext:cls="Ext.data.JsonReader">root</a>"</em>: <em>"rows"</em>,
47 <em>"<a href="output/Ext.data.JsonReader.html#Ext.data.JsonReader-totalProperty" ext:member="totalProperty" ext:cls="Ext.data.JsonReader">totalProperty</a>"</em>: <em>"results"</em>
48 <em>"<a href="output/Ext.data.JsonReader.html#Ext.data.JsonReader-successProperty" ext:member="successProperty" ext:cls="Ext.data.JsonReader">successProperty</a>"</em>: <em>"success"</em>,
49 <em>"<a href="output/Ext.data.DataReader.html#Ext.data.DataReader-fields" ext:member="fields" ext:cls="Ext.data.DataReader">fields</a>"</em>: [
50 {<em>"name"</em>: <em>"name"</em>},
51 {<em>"name"</em>: <em>"job"</em>, <em>"mapping"</em>: <em>"occupation"</em>}
53 <i>// used by store to set its sortInfo</i>
55 <em>"field"</em>: <em>"name"</em>,
56 <em>"direction"</em>: <em>"ASC"</em>
58 <i>// <a href="output/Ext.PagingToolbar.html" ext:cls="Ext.PagingToolbar">paging data</a> (<b>if</b> applicable)</i>
61 <i>// custom property</i>
62 <em>"foo"</em>: <em>"bar"</em>
64 <i>// Reader's configured <a href="output/Ext.data.JsonReader.html#Ext.data.JsonReader-successProperty" ext:member="successProperty" ext:cls="Ext.data.JsonReader">successProperty</a></i>
65 <em>"success"</em>: true,
66 <i>// Reader's configured <a href="output/Ext.data.JsonReader.html#Ext.data.JsonReader-totalProperty" ext:member="totalProperty" ext:cls="Ext.data.JsonReader">totalProperty</a></i>
67 <em>"results"</em>: 2000,
68 <i>// Reader's configured <a href="output/Ext.data.JsonReader.html#Ext.data.JsonReader-root" ext:member="root" ext:cls="Ext.data.JsonReader">root</a></i>
69 <i>// (this data simulates 2 results <a href="output/Ext.PagingToolbar.html" ext:cls="Ext.PagingToolbar">per page</a>)</i>
70 <em>"rows"</em>: [ <i>// <b>*Note:</b> this must be an Array</i>
71 { <em>"id"</em>: 1, <em>"name"</em>: <em>"Bill"</em>, <em>"occupation"</em>: <em>"Gardener"</em> },
72 { <em>"id"</em>: 2, <em>"name"</em>: <em>"Ben"</em>, <em>"occupation"</em>: <em>"Horticulturalist"</em> }
75 <p>The <b><tt>metaData</tt></b> property in the JSON data object should contain:</p>
76 <div class="mdetail-params"><ul>
77 <li>any of the configuration options for this class</li>
78 <li>a <b><tt><a href="output/Ext.data.Record.html#Ext.data.Record-fields" ext:member="fields" ext:cls="Ext.data.Record">fields</a></tt></b> property which
79 the JsonReader will use as an argument to the
80 <a href="output/Ext.data.Record.html#Ext.data.Record-create" ext:member="create" ext:cls="Ext.data.Record">data Record create method</a> in order to
81 configure the layout of the Records it will produce.</li>
82 <li>a <b><tt><a href="output/Ext.data.Store.html#Ext.data.Store-sortInfo" ext:member="sortInfo" ext:cls="Ext.data.Store">sortInfo</a></tt></b> property
83 which the JsonReader will use to set the <a href="output/Ext.data.Store.html" ext:cls="Ext.data.Store">Ext.data.Store</a>'s
84 <a href="output/Ext.data.Store.html#Ext.data.Store-sortInfo" ext:member="sortInfo" ext:cls="Ext.data.Store">sortInfo</a> property</li>
85 <li>any custom properties needed</li>
86 </ul></div></div><div class="hr"></div><a id="Ext.data.JsonReader-configs"></a><h2>Config Options</h2><table cellspacing="0" class="member-table"><tbody><tr><th colspan="2" class="sig-header">Config Options</th><th class="msource-header">Defined By</th></tr><tr class="config-row expandable inherited"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.DataReader-fields"></a><b><a href="source/DataReader.html#cfg-Ext.data.DataReader-fields">fields</a></b> : Array/Object<div class="mdesc"><div class="short">Either an Array of Field definition objects (which
87 will be passed to Ext.data.Record.create, or a Record
88 constructor ...</div><div class="long"><p>Either an Array of <a href="output/Ext.data.Field.html" ext:cls="Ext.data.Field">Field</a> definition objects (which
89 will be passed to <a href="output/Ext.data.Record.html#Ext.data.Record-create" ext:member="create" ext:cls="Ext.data.Record">Ext.data.Record.create</a>, or a <a href="output/Ext.data.Record.html" ext:cls="Ext.data.Record">Record</a>
90 constructor created from <a href="output/Ext.data.Record.html#Ext.data.Record-create" ext:member="create" ext:cls="Ext.data.Record">Ext.data.Record.create</a>.</p></div></div></td><td class="msource"><a href="output/Ext.data.DataReader.html#fields" ext:member="#fields" ext:cls="Ext.data.DataReader">DataReader</a></td></tr><tr class="config-row "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.JsonReader-idProperty"></a><b><a href="source/JsonReader.html#cfg-Ext.data.JsonReader-idProperty">idProperty</a></b> : String<div class="mdesc">[id] Name of the property within a row object
91 that contains a record identifier value. Defaults to <tt>id</tt></div></td><td class="msource">JsonReader</td></tr><tr class="config-row inherited"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.DataReader-messageProperty"></a><b><a href="source/DataReader.html#cfg-Ext.data.DataReader-messageProperty">messageProperty</a></b> : String<div class="mdesc">[undefined] Optional name of a property within a server-response that represents a user-feedback message.</div></td><td class="msource"><a href="output/Ext.data.DataReader.html#messageProperty" ext:member="#messageProperty" ext:cls="Ext.data.DataReader">DataReader</a></td></tr><tr class="config-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.JsonReader-root"></a><b><a href="source/JsonReader.html#cfg-Ext.data.JsonReader-root">root</a></b> : String<div class="mdesc"><div class="short">[undefined] Required. The name of the property
92 which contains the Array of row objects. Defaults to undefined.
93 An e...</div><div class="long">[undefined] <b>Required</b>. The name of the property
94 which contains the Array of row objects. Defaults to <tt>undefined</tt>.
95 An exception will be thrown if the root property is undefined. The data
96 packet value for this property should be an empty array to clear the data
97 or show no data.</div></div></td><td class="msource">JsonReader</td></tr><tr class="config-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.JsonReader-successProperty"></a><b><a href="source/JsonReader.html#cfg-Ext.data.JsonReader-successProperty">successProperty</a></b> : String<div class="mdesc"><div class="short">[success] Name of the property from which to
98 retrieve the success attribute. Defaults to success. See
99 Ext.data.DataP...</div><div class="long">[success] Name of the property from which to
100 retrieve the success attribute. Defaults to <tt>success</tt>. See
101 <a href="output/Ext.data.DataProxy.html" ext:cls="Ext.data.DataProxy">Ext.data.DataProxy</a>.<a href="output/Ext.data.DataProxy.html#Ext.data.DataProxy-exception" ext:member="exception" ext:cls="Ext.data.DataProxy">exception</a>
102 for additional information.</div></div></td><td class="msource">JsonReader</td></tr><tr class="config-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.JsonReader-totalProperty"></a><b><a href="source/JsonReader.html#cfg-Ext.data.JsonReader-totalProperty">totalProperty</a></b> : String<div class="mdesc"><div class="short">[total] Name of the property from which to
103 retrieve the total number of records in the dataset. This is only needed
104 i...</div><div class="long">[total] Name of the property from which to
105 retrieve the total number of records in the dataset. This is only needed
106 if the whole dataset is not passed in one go, but is being paged from
107 the remote server. Defaults to <tt>total</tt>.</div></div></td><td class="msource">JsonReader</td></tr></tbody></table><a id="Ext.data.JsonReader-props"></a><h2>Public Properties</h2><table cellspacing="0" class="member-table"><tbody><tr><th colspan="2" class="sig-header">Property</th><th class="msource-header">Defined By</th></tr><tr class="property-row inherited"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.DataReader-buildExtractors"></a><b><a href="source/DataReader.html#prop-Ext.data.DataReader-buildExtractors">buildExtractors</a></b> : Object<div class="mdesc">Abstract method, overridden in DataReader extensions such as <a href="output/Ext.data.JsonReader.html" ext:cls="Ext.data.JsonReader">Ext.data.JsonReader</a> and <a href="output/Ext.data.XmlReader.html" ext:cls="Ext.data.XmlReader">Ext.data.XmlReader</a></div></td><td class="msource"><a href="output/Ext.data.DataReader.html#buildExtractors" ext:member="#buildExtractors" ext:cls="Ext.data.DataReader">DataReader</a></td></tr><tr class="property-row inherited"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.DataReader-extractValues"></a><b><a href="source/DataReader.html#prop-Ext.data.DataReader-extractValues">extractValues</a></b> : Object<div class="mdesc">Abstract method overridden in DataReader extensions such as <a href="output/Ext.data.JsonReader.html" ext:cls="Ext.data.JsonReader">Ext.data.JsonReader</a> and <a href="output/Ext.data.XmlReader.html" ext:cls="Ext.data.XmlReader">Ext.data.XmlReader</a></div></td><td class="msource"><a href="output/Ext.data.DataReader.html#extractValues" ext:member="#extractValues" ext:cls="Ext.data.DataReader">DataReader</a></td></tr><tr class="property-row inherited"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.DataReader-getId"></a><b><a href="source/DataReader.html#prop-Ext.data.DataReader-getId">getId</a></b> : Object<div class="mdesc">Abstract method created in extension's buildExtractors impl.</div></td><td class="msource"><a href="output/Ext.data.DataReader.html#getId" ext:member="#getId" ext:cls="Ext.data.DataReader">DataReader</a></td></tr><tr class="property-row inherited"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.DataReader-getMessage"></a><b><a href="source/DataReader.html#prop-Ext.data.DataReader-getMessage">getMessage</a></b> : Object<div class="mdesc">Abstract method created in extension's buildExtractors impl.</div></td><td class="msource"><a href="output/Ext.data.DataReader.html#getMessage" ext:member="#getMessage" ext:cls="Ext.data.DataReader">DataReader</a></td></tr><tr class="property-row inherited"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.DataReader-getRoot"></a><b><a href="source/DataReader.html#prop-Ext.data.DataReader-getRoot">getRoot</a></b> : Object<div class="mdesc">Abstract method created in extension's buildExtractors impl.</div></td><td class="msource"><a href="output/Ext.data.DataReader.html#getRoot" ext:member="#getRoot" ext:cls="Ext.data.DataReader">DataReader</a></td></tr><tr class="property-row inherited"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.DataReader-getSuccess"></a><b><a href="source/DataReader.html#prop-Ext.data.DataReader-getSuccess">getSuccess</a></b> : Object<div class="mdesc">Abstract method created in extension's buildExtractors impl.</div></td><td class="msource"><a href="output/Ext.data.DataReader.html#getSuccess" ext:member="#getSuccess" ext:cls="Ext.data.DataReader">DataReader</a></td></tr><tr class="property-row inherited"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.DataReader-getTotal"></a><b><a href="source/DataReader.html#prop-Ext.data.DataReader-getTotal">getTotal</a></b> : Object<div class="mdesc">Abstract method created in extension's buildExtractors impl.</div></td><td class="msource"><a href="output/Ext.data.DataReader.html#getTotal" ext:member="#getTotal" ext:cls="Ext.data.DataReader">DataReader</a></td></tr><tr class="property-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.JsonReader-jsonData"></a><b><a href="source/JsonReader.html#prop-Ext.data.JsonReader-jsonData">jsonData</a></b> : Object<div class="mdesc"><div class="short">After any data loads, the raw JSON data is available for further custom processing. If no data is
108 loaded or there is...</div><div class="long">After any data loads, the raw JSON data is available for further custom processing. If no data is
109 loaded or there is a load exception this property will be undefined.</div></div></td><td class="msource">JsonReader</td></tr><tr class="property-row "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.JsonReader-meta"></a><b><a href="source/JsonReader.html#prop-Ext.data.JsonReader-meta">meta</a></b> : Mixed<div class="mdesc">This JsonReader's metadata as passed to the constructor, or as passed in
110 the last data packet's <b><tt>metaData</tt></b> property.</div></td><td class="msource">JsonReader</td></tr></tbody></table><a id="Ext.data.JsonReader-methods"></a><h2>Public Methods</h2><table cellspacing="0" class="member-table"><tbody><tr><th colspan="2" class="sig-header">Method</th><th class="msource-header">Defined By</th></tr><tr class="method-row expandable"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.JsonReader-JsonReader"></a><b><a href="source/JsonReader.html#cls-Ext.data.JsonReader">JsonReader</a></b>( <code>Object meta</code>, <code>Array/Object recordType</code> )
111 <div class="mdesc"><div class="short">Create a new JsonReader</div><div class="long">Create a new JsonReader<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>meta</code> : Object<div class="sub-desc">Metadata configuration options.</div></li><li><code>recordType</code> : Array/Object<div class="sub-desc"><p>Either an Array of <a href="output/Ext.data.Field.html" ext:cls="Ext.data.Field">Field</a> definition objects (which
112 will be passed to <a href="output/Ext.data.Record.html#Ext.data.Record-create" ext:member="create" ext:cls="Ext.data.Record">Ext.data.Record.create</a>, or a <a href="output/Ext.data.Record.html" ext:cls="Ext.data.Record">Record</a>
113 constructor created from <a href="output/Ext.data.Record.html#Ext.data.Record-create" ext:member="create" ext:cls="Ext.data.Record">Ext.data.Record.create</a>.</p></div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">JsonReader</td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.DataReader-isData"></a><b><a href="source/DataReader.html#method-Ext.data.DataReader-isData">isData</a></b>( <code>Object data</code> )
115 Boolean<div class="mdesc"><div class="short">Returns true if the supplied data-hash looks and quacks like data. Checks to see if it has a key
116 corresponding to id...</div><div class="long">Returns true if the supplied data-hash <b>looks</b> and quacks like data. Checks to see if it has a key
117 corresponding to idProperty defined in your DataReader config containing non-empty pk.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>data</code> : Object<div class="sub-desc"></div></li></ul><strong>Returns:</strong><ul><li><code>Boolean</code><div class="sub-desc"></div></li></ul></div></div></div></td><td class="msource"><a href="output/Ext.data.DataReader.html#isData" ext:member="#isData" ext:cls="Ext.data.DataReader">DataReader</a></td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.JsonReader-read"></a><b><a href="source/JsonReader.html#method-Ext.data.JsonReader-read">read</a></b>( <code>Object response</code> )
119 Object<div class="mdesc"><div class="short">This method is only used by a DataProxy which has retrieved data from a remote server.</div><div class="long">This method is only used by a DataProxy which has retrieved data from a remote server.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>response</code> : Object<div class="sub-desc">The XHR object which contains the JSON data in its responseText.</div></li></ul><strong>Returns:</strong><ul><li><code>Object</code><div class="sub-desc">data A data block which is used by an Ext.data.Store object as
120 a cache of Ext.data.Records.</div></li></ul></div></div></div></td><td class="msource">JsonReader</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.JsonReader-readRecords"></a><b><a href="source/JsonReader.html#method-Ext.data.JsonReader-readRecords">readRecords</a></b>( <code>Object o</code> )
122 Object<div class="mdesc"><div class="short">Create a data block containing Ext.data.Records from a JSON object.</div><div class="long">Create a data block containing Ext.data.Records from a JSON object.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>o</code> : Object<div class="sub-desc">An object which contains an Array of row objects in the property specified
123 in the config as 'root, and optionally a property, specified in the config as 'totalProperty'
124 which contains the total size of the dataset.</div></li></ul><strong>Returns:</strong><ul><li><code>Object</code><div class="sub-desc">data A data block which is used by an Ext.data.Store object as
125 a cache of Ext.data.Records.</div></li></ul></div></div></div></td><td class="msource">JsonReader</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.JsonReader-readResponse"></a><b><a href="source/JsonReader.html#method-Ext.data.JsonReader-readResponse">readResponse</a></b>( <code>String action</code>, <code>Object response</code> )
127 Response<div class="mdesc"><div class="short">Decode a JSON response from server.</div><div class="long">Decode a JSON response from server.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>action</code> : String<div class="sub-desc">[Ext.data.Api.actions.create|read|update|destroy]</div></li><li><code>response</code> : Object<div class="sub-desc">The XHR object returned through an Ajax server request.</div></li></ul><strong>Returns:</strong><ul><li><code>Response</code><div class="sub-desc">A {@link Ext.data.Response Response} object containing the data response, and also status information.</div></li></ul></div></div></div></td><td class="msource">JsonReader</td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.DataReader-realize"></a><b><a href="source/DataReader.html#method-Ext.data.DataReader-realize">realize</a></b>( <code>Record/Record[] record</code>, <code>Object/Object[] data</code> )
129 void<div class="mdesc"><div class="short">Used for un-phantoming a record after a successful database insert. Sets the records pk along with new data from ser...</div><div class="long">Used for un-phantoming a record after a successful database insert. Sets the records pk along with new data from server.
130 You <b>must</b> return at least the database pk using the idProperty defined in your DataReader configuration. The incoming
131 data from server will be merged with the data in the local record.
132 In addition, you <b>must</b> return record-data from the server in the same order received.
133 Will perform a commit as well, un-marking dirty-fields. Store's "update" event will be suppressed.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>record</code> : Record/Record[]<div class="sub-desc">The phantom record to be realized.</div></li><li><code>data</code> : Object/Object[]<div class="sub-desc">The new record data to apply. Must include the primary-key from database defined in idProperty field.</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.data.DataReader.html#realize" ext:member="#realize" ext:cls="Ext.data.DataReader">DataReader</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.DataReader-update"></a><b><a href="source/DataReader.html#method-Ext.data.DataReader-update">update</a></b>( <code>Record/Record[] rs</code>, <code>Object/Object[] data</code> )
135 void<div class="mdesc"><div class="short">Used for updating a non-phantom or "real" record's data with fresh data from server after remote-save.
136 If returning d...</div><div class="long">Used for updating a non-phantom or "real" record's data with fresh data from server after remote-save.
137 If returning data from multiple-records after a batch-update, you <b>must</b> return record-data from the server in
138 the same order received. Will perform a commit as well, un-marking dirty-fields. Store's "update" event will be
139 suppressed as the record receives fresh new data-hash<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>rs</code> : Record/Record[]<div class="sub-desc"></div></li><li><code>data</code> : Object/Object[]<div class="sub-desc"></div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.data.DataReader.html#update" ext:member="#update" ext:cls="Ext.data.DataReader">DataReader</a></td></tr></tbody></table><a id="Ext.data.JsonReader-events"></a><h2>Public Events</h2><div class="no-members">This class has no public events.</div></div>