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<dl class="meta">
<dt>Revision</dt> <dd><a href="http://core.trac.wordpress.org/changeset/22655">22655</a></dd>
<dt>Author</dt> <dd>koopersmith</dd>
<dt>Date</dt> <dd>2012-11-19 02:43:10 +0000 (Mon, 19 Nov 2012)</dd>
</dl>

<h3>Log Message</h3>
<pre>Media: Optimize media models.

* Merge `Composite` model with general `Attachments` model, as `Attachments.validate` and `Composite.evaluate` were functionally equivalent.
* Queries should only watch `wp.Uploader.queue`, as watching `Attachments.all` results in queries attempting to add attachments before their properties are set (which then results a few too many irrelevant adds/removes). `Attachments.all` should potentially be removed or rethought.

see <a href="http://core.trac.wordpress.org/ticket/21390">#21390</a>.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkwpincludesjsmediamodelsjs">trunk/wp-includes/js/media-models.js</a></li>
<li><a href="#trunkwpincludesjsmediaviewsjs">trunk/wp-includes/js/media-views.js</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkwpincludesjsmediamodelsjs"></a>
<div class="modfile"><h4>Modified: trunk/wp-includes/js/media-models.js (22654 => 22655)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/wp-includes/js/media-models.js        2012-11-19 02:00:01 UTC (rev 22654)
+++ trunk/wp-includes/js/media-models.js        2012-11-19 02:43:10 UTC (rev 22655)
</span><span class="lines">@@ -358,22 +358,64 @@
</span><span class="cx">                 },
</span><span class="cx"> 
</span><span class="cx">                 validate: function( attachment, options ) {
</span><ins>+                        var valid = this.validator( attachment ),
+                                hasAttachment = !! this.getByCid( attachment.cid );
+
</ins><span class="cx">                         // Only retain the `silent` option.
</span><span class="cx">                         options = {
</span><span class="cx">                                 silent: options &amp;&amp; options.silent
</span><span class="cx">                         };
</span><span class="cx"> 
</span><del>-                        return this[ this.validator( attachment ) ? 'add' : 'remove' ]( attachment, options );
</del><ins>+                        if ( ! valid &amp;&amp; hasAttachment )
+                                this.remove( attachment, options );
+                        else if ( valid &amp;&amp; ! hasAttachment )
+                                this.add( attachment, options );
+
+                        return this;
</ins><span class="cx">                 },
</span><span class="cx"> 
</span><ins>+                validateAll: function( attachments ) {
+                        _.each( attachments.models, function( attachment ) {
+                                this.validate( attachment, { silent: true });
+                        }, this );
+
+                        return this;
+                },
+
</ins><span class="cx">                 observe: function( attachments ) {
</span><del>-                        attachments.on( 'add change', this.validate, this );
</del><ins>+                        this.observers = this.observers || [];
+                        this.observers.push( attachments );
+
+                        attachments.on( 'add change remove', this._validateHandler, this );
+                        attachments.on( 'reset', this._validateAllHandler, this );
+
+                        this.validateAll( attachments );
+                        return this;
</ins><span class="cx">                 },
</span><span class="cx"> 
</span><span class="cx">                 unobserve: function( attachments ) {
</span><del>-                        attachments.off( 'add change', this.validate, this );
</del><ins>+                        if ( attachments ) {
+                                attachments.off( null, null, this );
+                                this.observers = _.without( this.observers, attachments );
+
+                        } else {
+                                _.each( this.observers, function( attachments ) {
+                                        attachments.off( null, null, this );
+                                }, this );
+                                delete this.observers;
+                        }
+
+                        return this;
</ins><span class="cx">                 },
</span><span class="cx"> 
</span><ins>+                _validateHandler: function( attachment, attachments, options ) {
+                        return this.validate( attachment, options );
+                },
+
+                _validateAllHandler: function( attachments, options ) {
+                        return this.evaluateAll( attachments, options );
+                },
+
</ins><span class="cx">                 mirror: function( attachments ) {
</span><span class="cx">                         if ( this.mirroring &amp;&amp; this.mirroring === attachments )
</span><span class="cx">                                 return;
</span><span class="lines">@@ -518,15 +560,15 @@
</span><span class="cx">                                 return false;
</span><span class="cx">                         };
</span><span class="cx"> 
</span><del>-                        // Observe the central `Attachments.all` model to watch for new
-                        // matches for the query.
</del><ins>+                        // Observe the central `wp.Uploader.queue` collection to watch for
+                        // new matches for the query.
</ins><span class="cx">                         //
</span><span class="cx">                         // Only observe when a limited number of query args are set. There
</span><span class="cx">                         // are no filters for other properties, so observing will result in
</span><span class="cx">                         // false positives in those queries.
</span><span class="cx">                         allowed = [ 's', 'order', 'orderby', 'posts_per_page', 'post_mime_type' ];
</span><del>-                        if ( _( this.args ).chain().keys().difference( allowed ).isEmpty().value() )
-                                this.observe( Attachments.all );
</del><ins>+                        if ( wp.Uploader &amp;&amp; _( this.args ).chain().keys().difference( allowed ).isEmpty().value() )
+                                this.observe( wp.Uploader.queue );
</ins><span class="cx">                 },
</span><span class="cx"> 
</span><span class="cx">                 more: function( options ) {
</span><span class="lines">@@ -732,83 +774,4 @@
</span><span class="cx">                 }
</span><span class="cx">         });
</span><span class="cx"> 
</span><del>-        /**
-         * wp.media.model.Composite
-         *
-         * Creates a model that can simultaneously pull from two or more collections.
-         */
-        media.model.Composite = Attachments.extend({
-                initialize: function( models, options ) {
-                        this.observe( this, { silent: true });
-                        Attachments.prototype.initialize.apply( this, arguments );
-                },
-
-                evaluate: function( attachment, options ) {
-                        var valid = this.validator( attachment ),
-                                hasAttachment = !! this.getByCid( attachment.cid );
-
-                        if ( ! valid &amp;&amp; hasAttachment )
-                                this.remove( attachment, options );
-                        else if ( valid &amp;&amp; ! hasAttachment )
-                                this.add( attachment, options );
-
-                        return this;
-                },
-
-                validator: function() {
-                        return true;
-                },
-
-                evaluateAll: function( attachments, options ) {
-                        _.each( attachments.models, function( attachment ) {
-                                this.evaluate( attachment, { silent: true });
-                        }, this );
-
-                        return this;
-                },
-
-                observe: function( attachments, options ) {
-                        var silent = options &amp;&amp; options.silent;
-                        this.observers = this.observers || [];
-                        this.observers.push( attachments );
-
-                        attachments.on( 'add remove',  silent ? this._evaluateSilentHandler : this._evaluateHandler, this );
-                        attachments.on( 'reset',  silent ? this._evaluateAllSilentHandler : this._evaluateAllHandler, this );
-
-                        this.evaluateAll( attachments, options );
-                        return this;
-                },
-
-                unobserve: function( attachments ) {
-                        if ( attachments ) {
-                                attachments.off( null, null, this );
-                                this.observers = _.without( this.observers, attachments );
-
-                        } else {
-                                _.each( this.observers, function( attachments ) {
-                                        attachments.off( null, null, this );
-                                }, this );
-                                delete this.observers;
-                        }
-
-                        return this;
-                },
-
-                _evaluateHandler: function( attachment, attachments, options ) {
-                        return this.evaluate( attachment, options );
-                },
-
-                _evaluateAllHandler: function( attachments, options ) {
-                        return this.evaluateAll( attachments, options );
-                },
-
-                _evaluateSilentHandler: function( attachment, attachments, options ) {
-                        return this.evaluate( attachment, _.defaults({ silent: true }, options ) );
-                },
-
-                _evaluateAllSilentHandler: function( attachments, options ) {
-                        return this.evaluateAll( attachments, _.defaults({ silent: true }, options ) );
-                }
-        });
-
</del><span class="cx"> }(jQuery));
</span><span class="cx">\ No newline at end of file
</span></span></pre></div>
<a id="trunkwpincludesjsmediaviewsjs"></a>
<div class="modfile"><h4>Modified: trunk/wp-includes/js/media-views.js (22654 => 22655)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/wp-includes/js/media-views.js        2012-11-19 02:00:01 UTC (rev 22654)
+++ trunk/wp-includes/js/media-views.js        2012-11-19 02:43:10 UTC (rev 22655)
</span><span class="lines">@@ -387,7 +387,7 @@
</span><span class="cx">                                 this.set( '_library', original = this.get('library') );
</span><span class="cx"> 
</span><span class="cx">                         // Create a composite library in its place.
</span><del>-                        composite = new media.model.Composite( null, {
</del><ins>+                        composite = new media.model.Attachments( null, {
</ins><span class="cx">                                 props: _.pick( original.props.toJSON(), 'order', 'orderby' )
</span><span class="cx">                         });
</span><span class="cx"> 
</span><span class="lines">@@ -2410,6 +2410,7 @@
</span><span class="cx"> 
</span><span class="cx">                         _.each(['add','remove'], function( method ) {
</span><span class="cx">                                 this.collection.on( method, function( attachment, attachments, options ) {
</span><ins>+                                        console.log( method, 'attachment', attachment.id, 'at', options.index );
</ins><span class="cx">                                         this[ method ]( attachment, options.index );
</span><span class="cx">                                 }, this );
</span><span class="cx">                         }, this );
</span></span></pre>
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