Passing through the options argument to 'change' events.

jashkenas · jashkenas · commit fa9a4c879d9d · 2010-11-30T15:35:43.000-05:00
diff --git a/backbone.js b/backbone.js
@@ -186,7 +186,7 @@
       }
 
       // Fire the `"change"` event, if the model has been changed.
-      if (!options.silent && this._changed) this.change();
+      if (!options.silent && this._changed) this.change(options);
       return this;
     },
 
@@ -207,7 +207,7 @@
       if (!options.silent) {
         this._changed = true;
         this.trigger('change:' + attr, this);
-        this.change();
+        this.change(options);
       }
       return this;
     },
@@ -230,7 +230,7 @@
         for (attr in old) {
           this.trigger('change:' + attr, this);
         }
-        this.change();
+        this.change(options);
       }
       return this;
     },
@@ -309,8 +309,8 @@
 
     // Call this method to manually fire a `change` event for this model.
     // Calling this will cause all objects observing the model to update.
-    change : function() {
-      this.trigger('change', this);
+    change : function(options) {
+      this.trigger('change', this, options);
       this._previousAttributes = _.clone(this.attributes);
       this._changed = false;
     },
diff --git a/test/model.js b/test/model.js
@@ -148,7 +148,7 @@ $(document).ready(function() {
     equals(model.get('two'), null);
   });
 
-  test("Model: changed, hasChanged, changedAttributes, previous, previousAttributes", function() {
+  test("Model: change, hasChanged, changedAttributes, previous, previousAttributes", function() {
     var model = new Backbone.Model({name : "Tim", age : 10});
     model.bind('change', function() {
       ok(model.hasChanged('name'), 'name changed');
@@ -162,6 +162,19 @@ $(document).ready(function() {
     equals(model.get('name'), 'Rob');
   });
 
+  test("Model: change with options", function() {
+    var value;
+    var model = new Backbone.Model({name: 'Rob'});
+    model.bind('change', function(model, options) {
+      value = options.prefix + model.get('name');
+    });
+    model.set({name: 'Bob'}, {silent: true});
+    model.change({prefix: 'Mr. '});
+    equals(value, 'Mr. Bob');
+    model.set({name: 'Sue'}, {prefix: 'Ms. '});
+    equals(value, 'Ms. Sue');
+  });
+
   test("Model: save within change event", function () {
     var model = new Backbone.Model({firstName : "Taylor", lastName: "Swift"});
     model.bind('change', function () {
