docs/api/Ext.data.writer.Writer.html

   1 <!DOCTYPE html><html><head><title>Ext.data.writer.Writer | Ext JS 4.0 Documentation</title><script type="text/javascript" src="../ext-all.js"></script><link rel="stylesheet" href="../reset.css" type="text/css"><link rel="stylesheet" href="../scrollbars.css" type="text/css"><link rel="stylesheet" href="../docs.css" type="text/css"><link id="styleCss" rel="stylesheet" href="../style.css" type="text/css"><script type="text/javascript" src="../prettify.js"></script><link rel="stylesheet" href="../prettify.css" type="text/css"><!-- link(rel: 'stylesheet', href: req.baseURL + '/css/ext4.css', type: 'text/css')--><link rel="shortcut icon" type="image/ico" href="../favicon.ico"><!--[if IE]>
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   6 </head><body id="ext-body" class="iScroll"><div id="notice" class="notice">For up to date documentation and features, visit
   7 <a href="http://docs.sencha.com/ext-js/4-0">http://docs.sencha.com/ext-js/4-0</a></div><div class="wrapper"><div class="head-band"></div><div class="header"><h2><a href="../index.html">Sencha Documentation</a></h2></div><div id="search"><form><input type="text" placeholder="Search" id="search-field" autocomplete="off" name="q"></form><div id="search-box"></div></div><div id="treePanel"></div><div id="container"><script type="text/javascript">
   8
   9     req = {
  10         liveURL: '.',
  11         standAloneMode: true,
  12         origDocClass: 'Ext.data.writer.Writer',
  13         docClass: 'Ext.data.writer.Writer',
  14         docReq: 'Ext.data.writer.Writer',
  15         version: '4.0',
  16         baseURL: '.',
  17         baseDocURL: '.',
  18         baseProdURL: '.'
  19     };
  20
  21     clsInfo = {};
  22
  23
  24
  25 </script>
  26
  27 <script type="text/javascript" src="../search.js"></script>
  28 <!--script type="text/javascript" src="/new/javascripts/app/examples.js"></script-->
  29 <script type="text/javascript" src="../class_tree.js"></script>
  30 <script type="text/javascript" src="../class_doc.js"></script>
  31 <script type="text/javascript">
  32     req.source = 'Writer.html#Ext-data.writer.Writer';
  33     clsInfo = {"methods":["Writer","getRecordData","write"],"cfgs":["nameProperty","writeAllFields"],"properties":[],"events":[],"subclasses":["Ext.data.writer.Json","Ext.data.writer.Xml"]};
  34     Ext.onReady(function() {
  35         Ext.create('Docs.classPanel');
  36     });
  37 </script><div id="top-block" class="top-block"><h1 id="clsTitle" class="cls"><a href="../source/Writer.html#Ext-data.writer.Writer" target="_blank">Ext.data.writer.Writer</a></h1></div><div id="docContent"><div id="doc-overview-content"><div class="lft"><p>Base Writer class used by most subclasses of <a href="Ext.data.proxy.Server.html" rel="Ext.data.proxy.Server" class="docClass">Ext.data.proxy.Server</a>. This class is
  38 responsible for taking a set of <a href="Ext.data.Operation.html" rel="Ext.data.Operation" class="docClass">Ext.data.Operation</a> objects and a <a href="Ext.data.Request.html" rel="Ext.data.Request" class="docClass">Ext.data.Request</a>
  39 object and modifying that request based on the Operations.</p>
  40
  41
  42
  43
  44 <p>For example a <a href="Ext.data.writer.Json.html" rel="Ext.data.writer.Json" class="docClass">Ext.data.writer.Json</a> would format the Operations and their <a href="Ext.data.Model.html" rel="Ext.data.Model" class="docClass">Ext.data.Model</a>
  45 instances based on the config options passed to the JsonWriter's constructor.</p>
  46
  47
  48
  49
  50 <p>Writers are not needed for any kind of local storage - whether via a
  51 <a href="Ext.data.proxy.WebStorage.html" rel="Ext.data.proxy.WebStorage" class="docClass">Web Storage proxy</a> (see <a href="Ext.data.proxy.LocalStorage.html" rel="Ext.data.proxy.LocalStorage" class="docClass">localStorage</a>
  52 and <a href="Ext.data.proxy.SessionStorage.html" rel="Ext.data.proxy.SessionStorage" class="docClass">sessionStorage</a>) or just in memory via a
  53 <a href="Ext.data.proxy.Memory.html" rel="Ext.data.proxy.Memory" class="docClass">MemoryProxy</a>.</p>
  54
  55 <div class="members"><div class="m-cfgs"><div class="definedBy">Defined By</div><a name="configs"></a><h3 class="cfg p">Config Options</h3><h4 class="cfgGroup">Other Configs</h4><div id="config-nameProperty" class="member f ni"><a href="Ext.data.writer.Writer.html#config-nameProperty" rel="config-nameProperty" class="expand more ar"><span>&nbsp;</span></a><div class="title"><div class="meta"><a href="Ext.data.writer.Writer.html" class="definedIn docClass">Ext.data.writer.Writer</a><br/><a href="../source/Writer.html#Ext-data.writer.Writer-cfg-nameProperty" class="viewSource">view source</a></div><a name="nameProperty"></a><a name="config-nameProperty"></a><a href="Ext.data.writer.Writer.html#" rel="config-nameProperty" class="cls expand">nameProperty</a><span> : String</span></div><div class="description"><div class="short">This property is used to read the key for each value that will be sent to the server.
  56 For example:
  57
  58 Ext.define('Perso...</div><div class="long"><p>This property is used to read the key for each value that will be sent to the server.
  59 For example:</p>
  60
  61 <pre><code>Ext.define('Person', {
  62     extend: 'Ext.data.Model',
  63     fields: [{
  64         name: 'first',
  65         mapping: 'firstName'
  66     }, {
  67         name: 'last',
  68         mapping: 'lastName'
  69     }, {
  70         name: 'age'
  71     }]
  72 });
  73 new Ext.data.writer.Writer({
  74     writeAllFields: true,
  75     nameProperty: 'mapping'
  76 });
  77
  78 // This will be sent to the server
  79 {
  80     firstName: 'first name value',
  81     lastName: 'last name value',
  82     age: 1
  83 }
  84
  85 </code></pre>
  86
  87
  88 <p>Defaults to <tt>name</tt>. If the value is not present, the field name will always be used.</p>
  89 </div></div></div><div id="config-writeAllFields" class="member ni"><a href="Ext.data.writer.Writer.html#config-writeAllFields" rel="config-writeAllFields" class="expand more ar"><span>&nbsp;</span></a><div class="title"><div class="meta"><a href="Ext.data.writer.Writer.html" class="definedIn docClass">Ext.data.writer.Writer</a><br/><a href="../source/Writer.html#Ext-data.writer.Writer-cfg-writeAllFields" class="viewSource">view source</a></div><a name="writeAllFields"></a><a name="config-writeAllFields"></a><a href="Ext.data.writer.Writer.html#" rel="config-writeAllFields" class="cls expand">writeAllFields</a><span> : Boolean</span></div><div class="description"><div class="short">True to write all fields from the record to the server. If set to false it
  90 will only send the fields that were modifi...</div><div class="long"><p>True to write all fields from the record to the server. If set to false it
  91 will only send the fields that were modified. Defaults to <tt>true</tt>. Note that any fields that have
  92 <a href="Ext.data.Field.html#persist" rel="Ext.data.Field#persist" class="docClass">Ext.data.Field.persist</a> set to false will still be ignored.</p>
  93 </div></div></div></div><div class="m-methods"><a name="methods"></a><div class="definedBy">Defined By</div><h3 class="mth p">Methods</h3><div id="method-Writer" class="member f ni"><a href="Ext.data.writer.Writer.html#method-Writer" rel="method-Writer" class="expand more ar"><span>&nbsp;</span></a><div class="title"><div class="meta"><a href="Ext.data.writer.Writer.html" class="definedIn docClass">Ext.data.writer.Writer</a><br/><a href="../source/Writer.html#Ext-data.writer.Writer-method-constructor" class="viewSource">view source</a></div><a name="Writer"></a><a name="method-Writer"></a><a href="Ext.data.writer.Writer.html#" rel="method-Writer" class="cls expand">Writer</a>(
  94 <span class="pre">Object config</span>)
  95  : void</div><div class="description"><div class="short"><p>&nbsp;</p></div><div class="long">
  96 <h3 class="pa">Parameters</h3><ul><li><span class="pre">config</span> : Object<div class="sub-desc"><p>Optional config object</p>
  97 </div></li></ul><h3 class="pa">Returns</h3><ul><li><span class="pre">void</span>&nbsp; &nbsp;
  98 </li></ul></div></div></div><div id="method-getRecordData" class="member ni"><a href="Ext.data.writer.Writer.html#method-getRecordData" rel="method-getRecordData" class="expand more ar"><span>&nbsp;</span></a><div class="title"><div class="meta"><a href="Ext.data.writer.Writer.html" class="definedIn docClass">Ext.data.writer.Writer</a><br/><a href="../source/Writer.html#Ext-data.writer.Writer-method-getRecordData" class="viewSource">view source</a></div><a name="getRecordData"></a><a name="method-getRecordData"></a><a href="Ext.data.writer.Writer.html#" rel="method-getRecordData" class="cls expand">getRecordData</a>(
  99 <span class="pre">Object record</span>)
 100  : Object</div><div class="description"><div class="short">Formats the data for each record before sending it to the server. This
 101 method should be overridden to format the data...</div><div class="long"><p>Formats the data for each record before sending it to the server. This
 102 method should be overridden to format the data in a way that differs from the default.</p>
 103 <h3 class="pa">Parameters</h3><ul><li><span class="pre">record</span> : Object<div class="sub-desc"><p>The record that we are writing to the server.</p>
 104 </div></li></ul><h3 class="pa">Returns</h3><ul><li><span class="pre">Object</span>&nbsp; &nbsp;<p>An object literal of name/value keys to be written to the server.
 105 By default this method returns the data property on the record.</p>
 106 </li></ul></div></div></div><div id="method-write" class="member ni"><a href="Ext.data.writer.Writer.html#method-write" rel="method-write" class="expand more ar"><span>&nbsp;</span></a><div class="title"><div class="meta"><a href="Ext.data.writer.Writer.html" class="definedIn docClass">Ext.data.writer.Writer</a><br/><a href="../source/Writer.html#Ext-data.writer.Writer-method-write" class="viewSource">view source</a></div><a name="write"></a><a name="method-write"></a><a href="Ext.data.writer.Writer.html#" rel="method-write" class="cls expand">write</a>(
 107 <span class="pre">Ext.data.Request request</span>)
 108  : Ext.data.Request</div><div class="description"><div class="short"><p>Prepares a Proxy's <a href="Ext.data.Request.html" rel="Ext.data.Request" class="docClass">Ext.data.Request</a> object</p>
 109 </div><div class="long"><p>Prepares a Proxy's <a href="Ext.data.Request.html" rel="Ext.data.Request" class="docClass">Ext.data.Request</a> object</p>
 110 <h3 class="pa">Parameters</h3><ul><li><span class="pre">request</span> : Ext.data.Request<div class="sub-desc"><p>The request object</p>
 111 </div></li></ul><h3 class="pa">Returns</h3><ul><li><span class="pre">Ext.data.Request</span>&nbsp; &nbsp;<p>The modified request object</p>
 112 </li></ul></div></div></div></div></div></div></div><div id="pageContent"></div></div></div></div></body></html>