From 42d321f236f15ffeabe525a0358cc401467678ab Mon Sep 17 00:00:00 2001
From: Jeremy Ashkenas <jashkenas@gmail.com>
Date: Tue, 17 Jan 2012 11:55:15 -0500
Subject: [PATCH] Fixes #570, supports Model#save(key, value)

---
 backbone.js   | 11 ++++++++++-
 test/model.js |  9 +++++++++
 2 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/backbone.js b/backbone.js
index bb4ebf3b..fa0dba72 100644
--- a/backbone.js
+++ b/backbone.js
@@ -291,7 +291,16 @@
     // Set a hash of model attributes, and sync the model to the server.
     // If the server returns an attributes hash that differs, the model's
     // state will be `set` again.
-    save : function(attrs, options) {
+    save : function(key, value, options) {
+      var attrs;
+      if (_.isObject(key) || key == null) {
+        attrs = key;
+        options = value;
+      } else {
+        attrs = {};
+        attrs[key] = value;
+      }
+
       options = options ? _.clone(options) : {};
       if (attrs && !this.set(attrs, options)) return false;
       var model = this;
diff --git a/test/model.js b/test/model.js
index e60dba69..19806682 100644
--- a/test/model.js
+++ b/test/model.js
@@ -331,6 +331,15 @@ $(document).ready(function() {
     ok(_.isEqual(lastRequest[1], doc));
   });
 
+  test("Model: save in positional style", function() {
+    var model = new Backbone.Model();
+    model.sync = function(method, model, options) {
+      options.success();
+    };
+    model.save('title', 'Twelfth Night');
+    equals(model.get('title'), 'Twelfth Night');
+  });
+
   test("Model: fetch", function() {
     doc.fetch();
     ok(lastRequest[0], 'read');