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<title>The source code</title>
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<pre class="prettyprint lang-js"><div id="cls-Ext.data.Record"></div>/**
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* @class Ext.data.Record
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* <p>Instances of this class encapsulate both Record <em>definition</em> information, and Record
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* <em>value</em> information for use in {@link Ext.data.Store} objects, or any code which needs
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* to access Records cached in an {@link Ext.data.Store} object.</p>
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* <p>Constructors for this class are generated by passing an Array of field definition objects to {@link #create}.
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* Instances are usually only created by {@link Ext.data.Reader} implementations when processing unformatted data
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* <p>Note that an instance of a Record class may only belong to one {@link Ext.data.Store Store} at a time.
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* In order to copy data from one Store to another, use the {@link #copy} method to create an exact
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* copy of the Record, and insert the new instance into the other Store.</p>
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* <p>When serializing a Record for submission to the server, be aware that it contains many private
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* properties, and also a reference to its owning Store which in turn holds references to its Records.
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* This means that a whole Record may not be encoded using {@link Ext.util.JSON.encode}. Instead, use the
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* <code>{@link #data}</code> and <code>{@link #id}</code> properties.</p>
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* <p>Record objects generated by this constructor inherit all the methods of Ext.data.Record listed below.</p>
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* This constructor should not be used to create Record objects. Instead, use {@link #create} to
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* generate a subclass of Ext.data.Record configured with information about its constituent fields.
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* @param {Object} data (Optional) An object, the properties of which provide values for the new Record's
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* fields. If not specified the <code>{@link Ext.data.Field#defaultValue defaultValue}</code>
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* for each field will be assigned.
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* @param {Object} id (Optional) The id of the Record. This id should be unique, and is used by the
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* {@link Ext.data.Store} object which owns the Record to index its collection of Records. If
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* an <code>id</code> is not specified a <b><code>{@link #phantom}</code></b> Record will be created
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* with an {@link #Record.id automatically generated id}.
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Ext.data.Record = function(data, id){
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// if no id, call the auto id method
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this.id = (id || id === 0) ? id : Ext.data.Record.id(this);
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this.data = data || {};
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<div id="method-Ext.data.Record-create"></div>/**
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* Generate a constructor for a specific Record layout.
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* @param {Array} o An Array of <b>{@link Ext.data.Field Field}</b> definition objects.
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* The constructor generated by this method may be used to create new Record instances. The data
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* object must contain properties named after the {@link Ext.data.Field field}
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* <b><tt>{@link Ext.data.Field#name}s</tt></b>. Example usage:<pre><code>
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// create a Record constructor from a description of the fields
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var TopicRecord = Ext.data.Record.create([ // creates a subclass of Ext.data.Record
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{{@link Ext.data.Field#name name}: 'title', {@link Ext.data.Field#mapping mapping}: 'topic_title'},
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{name: 'author', mapping: 'username', allowBlank: false},
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{name: 'totalPosts', mapping: 'topic_replies', type: 'int'},
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{name: 'lastPost', mapping: 'post_time', type: 'date'},
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{name: 'lastPoster', mapping: 'user2'},
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{name: 'excerpt', mapping: 'post_text', allowBlank: false},
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// In the simplest case, if no properties other than <tt>name</tt> are required,
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// a field definition may consist of just a String for the field name.
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// create Record instance
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var myNewRecord = new TopicRecord(
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title: 'Do my job please',
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excerpt: 'No way dude!',
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id // optionally specify the id of the record otherwise {@link #Record.id one is auto-assigned}
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myStore.{@link Ext.data.Store#add add}(myNewRecord);
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* @return {function} A constructor which is used to create new Records according
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* to the definition. The constructor has the same signature as {@link #Ext.data.Record}.
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Ext.data.Record.create = function(o){
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var f = Ext.extend(Ext.data.Record, {});
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p.fields = new Ext.util.MixedCollection(false, function(field){
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for(var i = 0, len = o.length; i < len; i++){
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p.fields.add(new Ext.data.Field(o[i]));
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f.getField = function(name){
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return p.fields.get(name);
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Ext.data.Record.PREFIX = 'ext-record';
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Ext.data.Record.AUTO_ID = 1;
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Ext.data.Record.EDIT = 'edit';
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Ext.data.Record.REJECT = 'reject';
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Ext.data.Record.COMMIT = 'commit';
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<div id="method-Ext.data.Record-Record.id"></div>/**
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* Generates a sequential id. This method is typically called when a record is {@link #create}d
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* and {@link #Record no id has been specified}. The returned id takes the form:
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* <tt>{PREFIX}-{AUTO_ID}</tt>.<div class="mdetail-params"><ul>
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* <li><b><tt>PREFIX</tt></b> : String<p class="sub-desc"><tt>Ext.data.Record.PREFIX</tt>
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* (defaults to <tt>'ext-record'</tt>)</p></li>
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* <li><b><tt>AUTO_ID</tt></b> : String<p class="sub-desc"><tt>Ext.data.Record.AUTO_ID</tt>
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* (defaults to <tt>1</tt> initially)</p></li>
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* @param {Record} rec The record being created. The record does not exist, it's a {@link #phantom}.
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* @return {String} auto-generated string id, <tt>"ext-record-i++'</tt>;
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Ext.data.Record.id = function(rec) {
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return [Ext.data.Record.PREFIX, '-', Ext.data.Record.AUTO_ID++].join('');
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Ext.data.Record.prototype = {
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<div id="prop-Ext.data.Record-fields"></div>/**
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* <p><b>This property is stored in the Record definition's <u>prototype</u></b></p>
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* A MixedCollection containing the defined {@link Ext.data.Field Field}s for this Record. Read-only.
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* @type Ext.util.MixedCollection
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<div id="prop-Ext.data.Record-data"></div>/**
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* An object hash representing the data for this Record. Every field name in the Record definition
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* is represented by a property of that name in this object. Note that unless you specified a field
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* with {@link Ext.data.Field#name name} "id" in the Record definition, this will <b>not</b> contain
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* an <tt>id</tt> property.
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<div id="prop-Ext.data.Record-id"></div>/**
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* The unique ID of the Record {@link #Record as specified at construction time}.
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<div id="prop-Ext.data.Record-dirty"></div>/**
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* Readonly flag - true if this Record has been modified.
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<div id="prop-Ext.data.Record-modified"></div>/**
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* This object contains a key and value storing the original values of all modified
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* fields or is null if no fields have been modified.
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<div id="prop-Ext.data.Record-phantom"></div>/**
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* <tt>false</tt> when the record does not yet exist in a server-side database (see
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* {@link #markDirty}). Any record which has a real database pk set as its id property
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* is NOT a phantom -- it's real.
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join : function(store){
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<div id="prop-Ext.data.Record-store"></div>/**
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* The {@link Ext.data.Store} to which this Record belongs.
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* @type {Ext.data.Store}
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<div id="method-Ext.data.Record-set"></div>/**
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* Set the {@link Ext.data.Field#name named field} to the specified value. For example:
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// record has a field named 'firstname'
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var Employee = Ext.data.Record.{@link #create}([
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// update the 2nd record in the store:
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var rec = myStore.{@link Ext.data.Store#getAt getAt}(1);
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// set the value (shows dirty flag):
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rec.set('firstname', 'Betty');
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// commit the change (removes dirty flag):
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rec.{@link #commit}();
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// update the record in the store, bypass setting dirty flag,
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// and do not store the change in the {@link Ext.data.Store#getModifiedRecords modified records}
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rec.{@link #data}['firstname'] = 'Wilma'); // updates record, but not the view
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rec.{@link #commit}(); // updates the view
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* <b>Notes</b>:<div class="mdetail-params"><ul>
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* <li>If the store has a writer and <code>autoSave=true</code>, each set()
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* will execute an XHR to the server.</li>
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* <li>Use <code>{@link #beginEdit}</code> to prevent the store's <code>update</code>
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* event firing while using set().</li>
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* <li>Use <code>{@link #endEdit}</code> to have the store's <code>update</code>
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* @param {String} name The {@link Ext.data.Field#name name of the field} to set.
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* @param {String/Object/Array} value The value to set the field to.
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set : function(name, value){
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var isObj = (typeof value === 'object');
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if(!isObj && String(this.data[name]) === String(value)){
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} else if (isObj && Ext.encode(this.data[name]) === Ext.encode(value)) {
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if(typeof this.modified[name] == 'undefined'){
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this.modified[name] = this.data[name];
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this.data[name] = value;
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afterEdit : function(){
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this.store.afterEdit(this);
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afterReject : function(){
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this.store.afterReject(this);
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afterCommit : function(){
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this.store.afterCommit(this);
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<div id="method-Ext.data.Record-get"></div>/**
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* Get the value of the {@link Ext.data.Field#name named field}.
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* @param {String} name The {@link Ext.data.Field#name name of the field} to get the value of.
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* @return {Object} The value of the field.
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get : function(name){
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return this.data[name];
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<div id="method-Ext.data.Record-beginEdit"></div>/**
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* Begin an edit. While in edit mode, no events (e.g.. the <code>update</code> event)
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* are relayed to the containing store.
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* See also: <code>{@link #endEdit}</code> and <code>{@link #cancelEdit}</code>.
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beginEdit : function(){
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this.modified = this.modified || {};
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<div id="method-Ext.data.Record-cancelEdit"></div>/**
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* Cancels all changes made in the current edit operation.
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cancelEdit : function(){
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this.editing = false;
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delete this.modified;
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<div id="method-Ext.data.Record-endEdit"></div>/**
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* End an edit. If any data was modified, the containing store is notified
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* (ie, the store's <code>update</code> event will fire).
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endEdit : function(){
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this.editing = false;
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<div id="method-Ext.data.Record-reject"></div>/**
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* Usually called by the {@link Ext.data.Store} which owns the Record.
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* Rejects all changes made to the Record since either creation, or the last commit operation.
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* Modified fields are reverted to their original values.
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* <p>Developers should subscribe to the {@link Ext.data.Store#update} event
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* to have their code notified of reject operations.</p>
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* @param {Boolean} silent (optional) True to skip notification of the owning
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* store of the change (defaults to false)
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reject : function(silent){
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var m = this.modified;
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if(typeof m[n] != "function"){
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delete this.modified;
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this.editing = false;
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<div id="method-Ext.data.Record-commit"></div>/**
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* Usually called by the {@link Ext.data.Store} which owns the Record.
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* Commits all changes made to the Record since either creation, or the last commit operation.
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* <p>Developers should subscribe to the {@link Ext.data.Store#update} event
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* to have their code notified of commit operations.</p>
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* @param {Boolean} silent (optional) True to skip notification of the owning
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* store of the change (defaults to false)
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commit : function(silent){
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delete this.modified;
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this.editing = false;
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<div id="method-Ext.data.Record-getChanges"></div>/**
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* Gets a hash of only the fields that have been modified since this Record was created or commited.
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getChanges : function(){
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var m = this.modified, cs = {};
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if(m.hasOwnProperty(n)){
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cs[n] = this.data[n];
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hasError : function(){
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return this.error !== null;
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clearError : function(){
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<div id="method-Ext.data.Record-copy"></div>/**
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* Creates a copy of this Record.
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* @param {String} id (optional) A new Record id, defaults to {@link #Record.id autogenerating an id}.
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* Note: if an <code>id</code> is not specified the copy created will be a
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* <code>{@link #phantom}</code> Record.
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copy : function(newId) {
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return new this.constructor(Ext.apply({}, this.data), newId || this.id);
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<div id="method-Ext.data.Record-isModified"></div>/**
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* Returns <tt>true</tt> if the passed field name has been <code>{@link #modified}</code>
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* since the load or last commit.
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* @param {String} fieldName {@link Ext.data.Field.{@link Ext.data.Field#name}
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isModified : function(fieldName){
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return !!(this.modified && this.modified.hasOwnProperty(fieldName));
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<div id="method-Ext.data.Record-isValid"></div>/**
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* By default returns <tt>false</tt> if any {@link Ext.data.Field field} within the
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* record configured with <tt>{@link Ext.data.Field#allowBlank} = false</tt> returns
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* <tt>true</tt> from an {@link Ext}.{@link Ext#isEmpty isempty} test.
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isValid : function() {
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return this.fields.find(function(f) {
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return (f.allowBlank === false && Ext.isEmpty(this.data[f.name])) ? true : false;
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},this) ? false : true;
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<div id="method-Ext.data.Record-markDirty"></div>/**
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* <p>Marks this <b>Record</b> as <code>{@link #dirty}</code>. This method
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* is used interally when adding <code>{@link #phantom}</code> records to a
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* {@link Ext.data.Store#writer writer enabled store}.</p>
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* <br><p>Marking a record <code>{@link #dirty}</code> causes the phantom to
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* be returned by {@link Ext.data.Store#getModifiedRecords} where it will
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* have a create action composed for it during {@link Ext.data.Store#save store save}
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markDirty : function(){
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this.fields.each(function(f) {
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this.modified[f.name] = this.data[f.name];
b'\\ No newline at end of file'