Resolve empty successful deletes

packages/ember-model/lib/rest_adapter.js

@@ -90,7 +90,7 @@ Ember.RESTAdapter = Ember.Adapter.extend({
         url = this.buildURL(record.constructor, get(record, primaryKey)),
         self = this;
 
-    return this.ajax(url, record.toJSON(), "DELETE").then(function(data) {  // TODO: Some APIs may or may not return data
+    return this.ajax(url, record.toJSON(), "DELETE").then(function(data) {
       self.didDeleteRecord(record, data);
     });
   },
@@ -124,6 +124,7 @@ Ember.RESTAdapter = Ember.Adapter.extend({
   },
 
   _ajax: function(url, params, method, settings) {
+    var self = this;
     if (!settings) {
       settings = this.ajaxSettings(url, method);
     }
@@ -148,14 +149,22 @@ Ember.RESTAdapter = Ember.Adapter.extend({
           jqXHR.then = null;
         }
 
-        Ember.run(null, reject, jqXHR);
+        self._handleRejections(method, jqXHR, resolve, reject);
       };
 
 
       Ember.$.ajax(settings);
    });
   },
 
+  _handleRejections: function(method, jqXHR, resolve, reject) {
+    if (method === "DELETE" && jqXHR.status >= 200 && jqXHR.status < 300) {
+      Ember.run(null, resolve, null);
+    } else {
+      Ember.run(null, reject, jqXHR);
+    }
+  },
+
   _loadRecordFromData: function(record, data) {
     var rootKey = get(record.constructor, 'rootKey'),
         primaryKey = get(record.constructor, 'primaryKey');

packages/ember-model/tests/adapter/rest_adapter_test.js

@@ -881,3 +881,33 @@ test("buildURL() creates url from model's url, id, and url suffix", function() {
   url = adapter.buildURL(RESTModel, "123");
   equal(url, "/posts/123.json" );
 });
+
+test('_handleRejections() will resolve empty successful DELETEs', function() {
+  expect(1);
+  var resolve = function(data) {
+    ok(data === null, "resolved with null");
+  };
+  Ember.run(function() {
+    adapter._handleRejections("DELETE", {status: 200}, resolve, Ember.$.noop);
+  });
+});
+
+test('_handleRejections() will reject empty responses for other verbs', function() {
+  expect(1);
+  var reject = function(data) {
+    ok(data.status === 200, "rejected with 200 status");
+  };
+  Ember.run(function() {
+    adapter._handleRejections("PUT", {status: 200}, Ember.$.noop, reject);
+  });
+});
+
+test('_handleRejections() will reject DELETEs with unsuccessful status codes', function() {
+  expect(1);
+  var reject = function(data) {
+    ok(data.status === 403, "rejected with 403 status");
+  };
+  Ember.run(function() {
+    adapter._handleRejections("DELETE", {status: 403}, Ember.$.noop, reject);
+  });
+});