Merge pull request #1675 from edx/christina/tab-new

Convert tabs to use RESTful API

cms/static/js/models/explicit_url.js

@@ -0,0 +1,14 @@
+/**
+ * A model that simply allows the update URL to be passed
+ * in as an argument.
+ */
+define(["backbone"], function(Backbone){
+    return Backbone.Model.extend({
+        defaults: {
+            "explicit_url": ""
+        },
+        url: function() {
+            return this.get("explicit_url");
+        }
+    });
+});

cms/static/js/spec/models/explicit_url_spec.js

@@ -0,0 +1,12 @@
+define(['js/models/explicit_url'],
+    function (Model) {
+        describe('Model ', function () {
+            it('allows url to be passed in constructor', function () {
+                expect(new Model({'explicit_url': '/fancy/url'}).url()).toBe('/fancy/url');
+            });
+            it('returns empty string if url not set', function () {
+                expect(new Model().url()).toBe('');
+            });
+        });
+    }
+);