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- <pre class="prettyprint lang-js">/*!
- * Ext JS Library 3.3.1
- * Copyright(c) 2006-2010 Sencha Inc.
- * licensing@sencha.com
- * http://www.sencha.com/license
- */
-<div id="cls-Ext.data.Record"></div>/**
- * @class Ext.data.Record
- * <p>Instances of this class encapsulate both Record <em>definition</em> information, and Record
- * <em>value</em> information for use in {@link Ext.data.Store} objects, or any code which needs
- * to access Records cached in an {@link Ext.data.Store} object.</p>
- * <p>Constructors for this class are generated by passing an Array of field definition objects to {@link #create}.
- * Instances are usually only created by {@link Ext.data.Reader} implementations when processing unformatted data
- * objects.</p>
- * <p>Note that an instance of a Record class may only belong to one {@link Ext.data.Store Store} at a time.
- * In order to copy data from one Store to another, use the {@link #copy} method to create an exact
- * copy of the Record, and insert the new instance into the other Store.</p>
- * <p>When serializing a Record for submission to the server, be aware that it contains many private
- * properties, and also a reference to its owning Store which in turn holds references to its Records.
- * This means that a whole Record may not be encoded using {@link Ext.util.JSON.encode}. Instead, use the
- * <code>{@link #data}</code> and <code>{@link #id}</code> properties.</p>
- * <p>Record objects generated by this constructor inherit all the methods of Ext.data.Record listed below.</p>
- * @constructor
- * <p>This constructor should not be used to create Record objects. Instead, use {@link #create} to
- * generate a subclass of Ext.data.Record configured with information about its constituent fields.<p>
- * <p><b>The generated constructor has the same signature as this constructor.</b></p>
- * @param {Object} data (Optional) An object, the properties of which provide values for the new Record's
- * fields. If not specified the <code>{@link Ext.data.Field#defaultValue defaultValue}</code>
- * for each field will be assigned.
- * @param {Object} id (Optional) The id of the Record. The id is used by the
- * {@link Ext.data.Store} object which owns the Record to index its collection
- * of Records (therefore this id should be unique within each store). If an
- * <code>id</code> is not specified a <b><code>{@link #phantom}</code></b>
- * Record will be created with an {@link #Record.id automatically generated id}.
- */
-Ext.data.Record = function(data, id){
- // if no id, call the auto id method
- this.id = (id || id === 0) ? id : Ext.data.Record.id(this);
- this.data = data || {};
-};
-
-<div id="method-Ext.data.Record-create"></div>/**
- * Generate a constructor for a specific Record layout.
- * @param {Array} o An Array of <b>{@link Ext.data.Field Field}</b> definition objects.
- * The constructor generated by this method may be used to create new Record instances. The data
- * object must contain properties named after the {@link Ext.data.Field field}
- * <b><tt>{@link Ext.data.Field#name}s</tt></b>. Example usage:<pre><code>
-// create a Record constructor from a description of the fields
-var TopicRecord = Ext.data.Record.create([ // creates a subclass of Ext.data.Record
- {{@link Ext.data.Field#name name}: 'title', {@link Ext.data.Field#mapping mapping}: 'topic_title'},
- {name: 'author', mapping: 'username', allowBlank: false},
- {name: 'totalPosts', mapping: 'topic_replies', type: 'int'},
- {name: 'lastPost', mapping: 'post_time', type: 'date'},
- {name: 'lastPoster', mapping: 'user2'},
- {name: 'excerpt', mapping: 'post_text', allowBlank: false},
- // In the simplest case, if no properties other than <tt>name</tt> are required,
- // a field definition may consist of just a String for the field name.
- 'signature'
-]);
-
-// create Record instance
-var myNewRecord = new TopicRecord(
- {
- title: 'Do my job please',
- author: 'noobie',
- totalPosts: 1,
- lastPost: new Date(),
- lastPoster: 'Animal',
- excerpt: 'No way dude!',
- signature: ''
- },
- id // optionally specify the id of the record otherwise {@link #Record.id one is auto-assigned}
-);
-myStore.{@link Ext.data.Store#add add}(myNewRecord);
-</code></pre>
- * @method create
- * @return {Function} A constructor which is used to create new Records according
- * to the definition. The constructor has the same signature as {@link #Record}.
- * @static
- */
-Ext.data.Record.create = function(o){
- var f = Ext.extend(Ext.data.Record, {});
- var p = f.prototype;
- p.fields = new Ext.util.MixedCollection(false, function(field){
- return field.name;
- });
- for(var i = 0, len = o.length; i < len; i++){
- p.fields.add(new Ext.data.Field(o[i]));
- }
- f.getField = function(name){
- return p.fields.get(name);
- };
- return f;
-};
-
-Ext.data.Record.PREFIX = 'ext-record';
-Ext.data.Record.AUTO_ID = 1;
-Ext.data.Record.EDIT = 'edit';
-Ext.data.Record.REJECT = 'reject';
-Ext.data.Record.COMMIT = 'commit';
-
-
-<div id="method-Ext.data.Record-Record.id"></div>/**
- * Generates a sequential id. This method is typically called when a record is {@link #create}d
- * and {@link #Record no id has been specified}. The returned id takes the form:
- * <tt>{PREFIX}-{AUTO_ID}</tt>.<div class="mdetail-params"><ul>
- * <li><b><tt>PREFIX</tt></b> : String<p class="sub-desc"><tt>Ext.data.Record.PREFIX</tt>
- * (defaults to <tt>'ext-record'</tt>)</p></li>
- * <li><b><tt>AUTO_ID</tt></b> : String<p class="sub-desc"><tt>Ext.data.Record.AUTO_ID</tt>
- * (defaults to <tt>1</tt> initially)</p></li>
- * </ul></div>
- * @param {Record} rec The record being created. The record does not exist, it's a {@link #phantom}.
- * @return {String} auto-generated string id, <tt>"ext-record-i++'</tt>;
- */
-Ext.data.Record.id = function(rec) {
- rec.phantom = true;
- return [Ext.data.Record.PREFIX, '-', Ext.data.Record.AUTO_ID++].join('');
-};
-
-Ext.data.Record.prototype = {
- <div id="prop-Ext.data.Record-fields"></div>/**
- * <p><b>This property is stored in the Record definition's <u>prototype</u></b></p>
- * A MixedCollection containing the defined {@link Ext.data.Field Field}s for this Record. Read-only.
- * @property fields
- * @type Ext.util.MixedCollection
- */
- <div id="prop-Ext.data.Record-data"></div>/**
- * An object hash representing the data for this Record. Every field name in the Record definition
- * is represented by a property of that name in this object. Note that unless you specified a field
- * with {@link Ext.data.Field#name name} "id" in the Record definition, this will <b>not</b> contain
- * an <tt>id</tt> property.
- * @property data
- * @type {Object}
- */
- <div id="prop-Ext.data.Record-id"></div>/**
- * The unique ID of the Record {@link #Record as specified at construction time}.
- * @property id
- * @type {Object}
- */
- <div id="prop-Ext.data.Record-node"></div>/**
- * <p><b>Only present if this Record was created by an {@link Ext.data.XmlReader XmlReader}</b>.</p>
- * <p>The XML element which was the source of the data for this Record.</p>
- * @property node
- * @type {XMLElement}
- */
- <div id="prop-Ext.data.Record-json"></div>/**
- * <p><b>Only present if this Record was created by an {@link Ext.data.ArrayReader ArrayReader} or a {@link Ext.data.JsonReader JsonReader}</b>.</p>
- * <p>The Array or object which was the source of the data for this Record.</p>
- * @property json
- * @type {Array|Object}
- */
- <div id="prop-Ext.data.Record-dirty"></div>/**
- * Readonly flag - true if this Record has been modified.
- * @type Boolean
- */
- dirty : false,
- editing : false,
- error : null,
- <div id="prop-Ext.data.Record-modified"></div>/**
- * This object contains a key and value storing the original values of all modified
- * fields or is null if no fields have been modified.
- * @property modified
- * @type {Object}
- */
- modified : null,
- <div id="prop-Ext.data.Record-phantom"></div>/**
- * <tt>true</tt> when the record does not yet exist in a server-side database (see
- * {@link #markDirty}). Any record which has a real database pk set as its id property
- * is NOT a phantom -- it's real.
- * @property phantom
- * @type {Boolean}
- */
- phantom : false,
-
- // private
- join : function(store){
- <div id="prop-Ext.data.Record-store"></div>/**
- * The {@link Ext.data.Store} to which this Record belongs.
- * @property store
- * @type {Ext.data.Store}
- */
- this.store = store;
- },
-
- <div id="method-Ext.data.Record-set"></div>/**
- * Set the {@link Ext.data.Field#name named field} to the specified value. For example:
- * <pre><code>
-// record has a field named 'firstname'
-var Employee = Ext.data.Record.{@link #create}([
- {name: 'firstname'},
- ...
-]);
-
-// update the 2nd record in the store:
-var rec = myStore.{@link Ext.data.Store#getAt getAt}(1);
-
-// set the value (shows dirty flag):
-rec.set('firstname', 'Betty');
-
-// commit the change (removes dirty flag):
-rec.{@link #commit}();
-
-// update the record in the store, bypass setting dirty flag,
-// and do not store the change in the {@link Ext.data.Store#getModifiedRecords modified records}
-rec.{@link #data}['firstname'] = 'Wilma'; // updates record, but not the view
-rec.{@link #commit}(); // updates the view
- * </code></pre>
- * <b>Notes</b>:<div class="mdetail-params"><ul>
- * <li>If the store has a writer and <code>autoSave=true</code>, each set()
- * will execute an XHR to the server.</li>
- * <li>Use <code>{@link #beginEdit}</code> to prevent the store's <code>update</code>
- * event firing while using set().</li>
- * <li>Use <code>{@link #endEdit}</code> to have the store's <code>update</code>
- * event fire.</li>
- * </ul></div>
- * @param {String} name The {@link Ext.data.Field#name name of the field} to set.
- * @param {String/Object/Array} value The value to set the field to.
- */
- set : function(name, value){
- var encode = Ext.isPrimitive(value) ? String : Ext.encode;
- if(encode(this.data[name]) == encode(value)) {
- return;
- }
- this.dirty = true;
- if(!this.modified){
- this.modified = {};
- }
- if(this.modified[name] === undefined){
- this.modified[name] = this.data[name];
- }
- this.data[name] = value;
- if(!this.editing){
- this.afterEdit();
- }
- },
-
- // private
- afterEdit : function(){
- if (this.store != undefined && typeof this.store.afterEdit == "function") {
- this.store.afterEdit(this);
- }
- },
-
- // private
- afterReject : function(){
- if(this.store){
- this.store.afterReject(this);
- }
- },
-
- // private
- afterCommit : function(){
- if(this.store){
- this.store.afterCommit(this);
- }
- },
-
- <div id="method-Ext.data.Record-get"></div>/**
- * Get the value of the {@link Ext.data.Field#name named field}.
- * @param {String} name The {@link Ext.data.Field#name name of the field} to get the value of.
- * @return {Object} The value of the field.
- */
- get : function(name){
- return this.data[name];
- },
-
- <div id="method-Ext.data.Record-beginEdit"></div>/**
- * Begin an edit. While in edit mode, no events (e.g.. the <code>update</code> event)
- * are relayed to the containing store.
- * See also: <code>{@link #endEdit}</code> and <code>{@link #cancelEdit}</code>.
- */
- beginEdit : function(){
- this.editing = true;
- this.modified = this.modified || {};
- },
-
- <div id="method-Ext.data.Record-cancelEdit"></div>/**
- * Cancels all changes made in the current edit operation.
- */
- cancelEdit : function(){
- this.editing = false;
- delete this.modified;
- },
-
- <div id="method-Ext.data.Record-endEdit"></div>/**
- * End an edit. If any data was modified, the containing store is notified
- * (ie, the store's <code>update</code> event will fire).
- */
- endEdit : function(){
- this.editing = false;
- if(this.dirty){
- this.afterEdit();
- }
- },
-
- <div id="method-Ext.data.Record-reject"></div>/**
- * Usually called by the {@link Ext.data.Store} which owns the Record.
- * Rejects all changes made to the Record since either creation, or the last commit operation.
- * Modified fields are reverted to their original values.
- * <p>Developers should subscribe to the {@link Ext.data.Store#update} event
- * to have their code notified of reject operations.</p>
- * @param {Boolean} silent (optional) True to skip notification of the owning
- * store of the change (defaults to false)
- */
- reject : function(silent){
- var m = this.modified;
- for(var n in m){
- if(typeof m[n] != "function"){
- this.data[n] = m[n];
- }
- }
- this.dirty = false;
- delete this.modified;
- this.editing = false;
- if(silent !== true){
- this.afterReject();
- }
- },
-
- <div id="method-Ext.data.Record-commit"></div>/**
- * Usually called by the {@link Ext.data.Store} which owns the Record.
- * Commits all changes made to the Record since either creation, or the last commit operation.
- * <p>Developers should subscribe to the {@link Ext.data.Store#update} event
- * to have their code notified of commit operations.</p>
- * @param {Boolean} silent (optional) True to skip notification of the owning
- * store of the change (defaults to false)
- */
- commit : function(silent){
- this.dirty = false;
- delete this.modified;
- this.editing = false;
- if(silent !== true){
- this.afterCommit();
- }
- },
-
- <div id="method-Ext.data.Record-getChanges"></div>/**
- * Gets a hash of only the fields that have been modified since this Record was created or commited.
- * @return Object
- */
- getChanges : function(){
- var m = this.modified, cs = {};
- for(var n in m){
- if(m.hasOwnProperty(n)){
- cs[n] = this.data[n];
- }
- }
- return cs;
- },
-
- // private
- hasError : function(){
- return this.error !== null;
- },
-
- // private
- clearError : function(){
- this.error = null;
- },
-
- <div id="method-Ext.data.Record-copy"></div>/**
- * Creates a copy (clone) of this Record.
- * @param {String} id (optional) A new Record id, defaults to the id
- * of the record being copied. See <code>{@link #id}</code>.
- * To generate a phantom record with a new id use:<pre><code>
-var rec = record.copy(); // clone the record
-Ext.data.Record.id(rec); // automatically generate a unique sequential id
- * </code></pre>
- * @return {Record}
- */
- copy : function(newId) {
- return new this.constructor(Ext.apply({}, this.data), newId || this.id);
- },
-
- <div id="method-Ext.data.Record-isModified"></div>/**
- * Returns <tt>true</tt> if the passed field name has been <code>{@link #modified}</code>
- * since the load or last commit.
- * @param {String} fieldName {@link Ext.data.Field.{@link Ext.data.Field#name}
- * @return {Boolean}
- */
- isModified : function(fieldName){
- return !!(this.modified && this.modified.hasOwnProperty(fieldName));
- },
-
- <div id="method-Ext.data.Record-isValid"></div>/**
- * By default returns <tt>false</tt> if any {@link Ext.data.Field field} within the
- * record configured with <tt>{@link Ext.data.Field#allowBlank} = false</tt> returns
- * <tt>true</tt> from an {@link Ext}.{@link Ext#isEmpty isempty} test.
- * @return {Boolean}
- */
- isValid : function() {
- return this.fields.find(function(f) {
- return (f.allowBlank === false && Ext.isEmpty(this.data[f.name])) ? true : false;
- },this) ? false : true;
- },
-
- <div id="method-Ext.data.Record-markDirty"></div>/**
- * <p>Marks this <b>Record</b> as <code>{@link #dirty}</code>. This method
- * is used interally when adding <code>{@link #phantom}</code> records to a
- * {@link Ext.data.Store#writer writer enabled store}.</p>
- * <br><p>Marking a record <code>{@link #dirty}</code> causes the phantom to
- * be returned by {@link Ext.data.Store#getModifiedRecords} where it will
- * have a create action composed for it during {@link Ext.data.Store#save store save}
- * operations.</p>
- */
- markDirty : function(){
- this.dirty = true;
- if(!this.modified){
- this.modified = {};
- }
- this.fields.each(function(f) {
- this.modified[f.name] = this.data[f.name];
- },this);
- }
-};
-</pre>
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