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<div xmlns:ext="http://www.extjs.com" class="body-wrap"><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
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>
constructor.</p>
<p>Example code:</p>
<pre><code><b>var</b> myReader = <b>new</b> Ext.data.JsonReader({
<i>// metadata configuration options:</i>
<a href="output/Ext.data.JsonReader.html#Ext.data.JsonReader-idProperty" ext:member="idProperty" ext:cls="Ext.data.JsonReader">idProperty</a>: <em>'id'</em>
<a href="output/Ext.data.JsonReader.html#Ext.data.JsonReader-root" ext:member="root" ext:cls="Ext.data.JsonReader">root</a>: <em>'rows'</em>,
<a href="output/Ext.data.JsonReader.html#Ext.data.JsonReader-totalProperty" ext:member="totalProperty" ext:cls="Ext.data.JsonReader">totalProperty</a>: <em>'results'</em>,
<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>
<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>
<i>// constructor that provides mapping <b>for</b> reading the record data objects</i>
<a href="output/Ext.data.DataReader.html#Ext.data.DataReader-fields" ext:member="fields" ext:cls="Ext.data.DataReader">fields</a>: [
<i>// map Record's <em>'firstname'</em> field to data object's key of same name</i>
{name: <em>'name'</em>, mapping: <em>'firstname'</em>},
<i>// map Record's <em>'job'</em> field to data object's <em>'occupation'</em> key</i>
{name: <em>'job'</em>, mapping: <em>'occupation'</em>}
]
});</code></pre>
<p>This would consume a JSON data object of the form:</p><pre><code>{
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>
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>
<i>// record data objects:</i>
{ <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> },
{ <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> },
...
]
}</code></pre>
<p><b><u>Automatic configuration using metaData</u></b></p>
<p>It is possible to change a JsonReader's metadata at any time by including
a <b><tt>metaData</tt></b> property in the JSON data object. If the JSON data
object has a <b><tt>metaData</tt></b> property, a <a href="output/Ext.data.Store.html" ext:cls="Ext.data.Store">Store</a>
object using this Reader will reconfigure itself to use the newly provided
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>
event. The metachange event handler may interrogate the <b><tt>metaData</tt></b>
property to perform any configuration required.</p>
<p>Note that reconfiguring a Store potentially invalidates objects which may
refer to Fields or Records which no longer exist.</p>
<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>
<p>The first data packet from the server would configure the reader by
containing a <b><tt>metaData</tt></b> property <b>and</b> the data. For
example, the JSON data object might take the form:</p><pre><code>{
metaData: {
<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>,
<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>,
<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>
<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>,
<em>"<a href="output/Ext.data.DataReader.html#Ext.data.DataReader-fields" ext:member="fields" ext:cls="Ext.data.DataReader">fields</a>"</em>: [
{<em>"name"</em>: <em>"name"</em>},
{<em>"name"</em>: <em>"job"</em>, <em>"mapping"</em>: <em>"occupation"</em>}
],
<i>// used by store to set its sortInfo</i>
<em>"sortInfo"</em>:{
<em>"field"</em>: <em>"name"</em>,
<em>"direction"</em>: <em>"ASC"</em>
},
<i>// <a href="output/Ext.PagingToolbar.html" ext:cls="Ext.PagingToolbar">paging data</a> (<b>if</b> applicable)</i>
<em>"start"</em>: 0,
<em>"limit"</em>: 2,
<i>// custom property</i>
<em>"foo"</em>: <em>"bar"</em>
},
<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>
<em>"success"</em>: true,
<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>
<em>"results"</em>: 2000,
<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>
<i>// (this data simulates 2 results <a href="output/Ext.PagingToolbar.html" ext:cls="Ext.PagingToolbar">per page</a>)</i>
<em>"rows"</em>: [ <i>// <b>*Note:</b> this must be an Array</i>
{ <em>"id"</em>: 1, <em>"name"</em>: <em>"Bill"</em>, <em>"occupation"</em>: <em>"Gardener"</em> },
{ <em>"id"</em>: 2, <em>"name"</em>: <em>"Ben"</em>, <em>"occupation"</em>: <em>"Horticulturalist"</em> }
]
}</code></pre>
<p>The <b><tt>metaData</tt></b> property in the JSON data object should contain:</p>
<div class="mdetail-params"><ul>
<li>any of the configuration options for this class</li>
<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
the JsonReader will use as an argument to the
<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
configure the layout of the Records it will produce.</li>
<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
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
<a href="output/Ext.data.Store.html#Ext.data.Store-sortInfo" ext:member="sortInfo" ext:cls="Ext.data.Store">sortInfo</a> property</li>
<li>any custom properties needed</li>
</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
will be passed to Ext.data.Record.create, or a Record
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
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>
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
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
which contains the Array of row objects. Defaults to undefined.
An e...</div><div class="long">[undefined] <b>Required</b>. The name of the property
which contains the Array of row objects. Defaults to <tt>undefined</tt>.
An exception will be thrown if the root property is undefined. The data
packet value for this property should be an empty array to clear the data
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
retrieve the success attribute. Defaults to success. See
Ext.data.DataP...</div><div class="long">[success] Name of the property from which to
retrieve the success attribute. Defaults to <tt>success</tt>. See
<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>
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
retrieve the total number of records in the dataset. This is only needed
i...</div><div class="long">[total] Name of the property from which to
retrieve the total number of records in the dataset. This is only needed
if the whole dataset is not passed in one go, but is being paged from
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
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
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
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 class="constructor"><a href="source/JsonReader.html#cls-Ext.data.JsonReader">JsonReader</a></b><span class="openparen">( </span><span title="Required" class="required">Object meta</span><span class="comma">, </span><span title="Required" class="required">Array/Object recordType</span><span class="closeparen"> )</span><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
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>
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 class="method"><a href="source/DataReader.html#method-Ext.data.DataReader-isData">isData</a></b><span class="openparen">( </span><span title="Required" class="required">Object data</span><span class="closeparen"> )</span><span class="colon"> : </span><span class="return">Boolean</span><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
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
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 class="method"><a href="source/JsonReader.html#method-Ext.data.JsonReader-read">read</a></b><span class="openparen">( </span><span title="Required" class="required">Object response</span><span class="closeparen"> )</span><span class="colon"> : </span><span class="return">Object</span><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
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 class="method"><a href="source/JsonReader.html#method-Ext.data.JsonReader-readRecords">readRecords</a></b><span class="openparen">( </span><span title="Required" class="required">Object o</span><span class="closeparen"> )</span><span class="colon"> : </span><span class="return">Object</span><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
in the config as 'root, and optionally a property, specified in the config as 'totalProperty'
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
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 class="method"><a href="source/JsonReader.html#method-Ext.data.JsonReader-readResponse">readResponse</a></b><span class="openparen">( </span><span title="Required" class="required">String action</span><span class="comma">, </span><span title="Required" class="required">Object response</span><span class="closeparen"> )</span><span class="colon"> : </span><span class="return">Response</span><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 class="method"><a href="source/DataReader.html#method-Ext.data.DataReader-realize">realize</a></b><span class="openparen">( </span><span title="Required" class="required">Record/Record[] record</span><span class="comma">, </span><span title="Required" class="required">Object/Object[] data</span><span class="closeparen"> )</span><span class="colon"> : </span><span class="return">void</span><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.
You <b>must</b> return at least the database pk using the idProperty defined in your DataReader configuration. The incoming
data from server will be merged with the data in the local record.
In addition, you <b>must</b> return record-data from the server in the same order received.
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 class="method"><a href="source/DataReader.html#method-Ext.data.DataReader-update">update</a></b><span class="openparen">( </span><span title="Required" class="required">Record/Record[] rs</span><span class="comma">, </span><span title="Required" class="required">Object/Object[] data</span><span class="closeparen"> )</span><span class="colon"> : </span><span class="return">void</span><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.
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.
If returning data from multiple-records after a batch-update, you <b>must</b> return record-data from the server in
the same order received. Will perform a commit as well, un-marking dirty-fields. Store's "update" event will be
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>
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