Add Model.extend to add class methods to the model.

lib/bundler.rb

@@ -35,6 +35,7 @@ def files
           model_instance_methods
           model_local_storage
           model_log
+          model_module
           model_rest
           model_uid
           model_version

src/model.js

@@ -8,12 +8,15 @@ var Model = function(name, func) {
     if (jQuery.isFunction(this.initialize)) this.initialize()
   };
 
-  // Apply class methods and extend with any custom class methods. Make sure
-  // vitals are added last so they can't be overridden.
-  jQuery.extend(model, Model.Callbacks, Model.ClassMethods, {
-    _name: name,
-    collection: []
-  });
+  // Use module functionality to extend itself onto the constructor. Meta!
+  Model.Module.extend.call(model, Model.Module)
+
+  model._name = name
+  model.collection = []
+  model.unique_key = "id"
+  model
+    .extend(Model.Callbacks)
+    .extend(Model.ClassMethods)
 
   // Add default and custom instance methods.
   jQuery.extend(model.prototype, Model.Callbacks, Model.InstanceMethods)

src/model_class_methods.js

@@ -1,6 +1,4 @@
 Model.ClassMethods = {
-  unique_key: 'id',
-
   add: function() {
     var added = [];
 

src/model_module.js

@@ -0,0 +1,6 @@
+Model.Module = {
+  extend: function(obj) {
+    jQuery.extend(this, obj)
+    return this
+  }
+};

test/tests/model_module.js

@@ -0,0 +1,14 @@
+module("Model.Module")
+
+test("extend", function() {
+  var A = Model("A")
+  var B = Model("B")
+  var module = {
+    greet: function() { return "Hi " + this._name }
+  }
+  A.extend(module)
+  B.extend(module)
+
+  equals(A.greet(), "Hi A")
+  equals(B.greet(), "Hi B")
+})

test/views/index.erb

@@ -22,6 +22,7 @@
 <script src="tests/model_callbacks.js"></script>
 <script src="tests/model_class_methods.js"></script>
 <script src="tests/model_errors.js"></script>
+<script src="tests/model_module.js"></script>
 <script src="tests/model_rest.js"></script>
 <script src="tests/model_uid.js"></script>
 <script src="tests/model_local_storage.js"></script>