Use a slightly modified version of Backbone's inherits as a generic means of adding prototypal inheritance.

Author: benpickles

src/collection.js

@@ -10,6 +10,10 @@
     }
   }
 
+  Collection.extend = function() {
+    return Model.Utils.inherits(this)
+  }
+
   var methods = [
     // name      chainable?   enumerable?  updateLength?
     "every",       false,       true,         false,

src/model.js

@@ -1,31 +1,10 @@
 var Model = function(name, func) {
-  // The model constructor.
-  var model = function(attributes) {
-    this.attributes = Model.Utils.extend({}, attributes)
-    this.changes = {};
-    this.errors = new Model.Errors(this);
-    this.uid = [name, Model.UID.generate()].join("-")
-    if (Model.Utils.isFunction(this.initialize)) this.initialize()
-    this.emit("initialize", this)
-  };
-
-  // Use module functionality to extend itself onto the constructor. Meta!
-  Model.Module.extend.call(model, Model.Module)
+  var model = Model.Model.extend()
 
   model._name = name
-  model.anyInstance = new Model.EventEmitter()
   model.collection = new Model.Collection()
-  model.persistence = Model.NullPersistence
-  model.unique_key = "id"
-  model
-    .extend(Model.Callbacks)
-    .extend(Model.ClassMethods)
-
   model.collection.listenTo(model.anyInstance)
 
-  model.prototype = new Model.Model
-  model.prototype.constructor = model
-
   if (Model.Utils.isFunction(func)) func.call(model, model, model.prototype)
 
   return model;

src/model_model.js

@@ -1,4 +1,20 @@
-Model.Model = function() {}
+Model.Model = function(attributes) {
+  this.attributes = Model.Utils.extend({}, attributes)
+  this.changes = {}
+  this.errors = new Model.Errors(this)
+  this.uid = [name, Model.UID.generate()].join("-")
+  if (Model.Utils.isFunction(this.initialize)) this.initialize()
+  this.emit("initialize", this)
+}
+
+Model.Model.extend = function() {
+  var child = Model.Utils.inherits(this)
+  child.anyInstance = new Model.EventEmitter()
+  child.persistence = Model.NullPersistence
+  child.unique_key = "id"
+  Model.Utils.extend(child, Model.ClassMethods)
+  return child
+}
 
 Model.Model.prototype = {
   attr: function(name, value) {

src/model_module.js

@@ -21,6 +21,20 @@ Model.Utils = {
     return -1
   },
 
+  inherits: function(parent) {
+    var ctor = function() {}
+    ctor.prototype = parent.prototype
+
+    var child = function() {
+      parent.apply(this, arguments)
+    }
+
+    child.prototype = new ctor()
+    child.prototype.constructor = child
+
+    return child
+  },
+
   isFunction: function(obj) {
     return Object.prototype.toString.call(obj) === "[object Function]"
   }

src/model_utils.js

@@ -20,7 +20,6 @@
 <script src="../src/model_model.js"></script>
 <script src="../src/model_local_storage.js"></script>
 <script src="../src/model_log.js"></script>
-<script src="../src/model_module.js"></script>
 <script src="../src/null_persistence.js"></script>
 <script src="../src/model_rest.js"></script>
 <script src="../src/model_uid.js"></script>
@@ -36,7 +35,6 @@
 <script src="tests/model_id_test.js"></script>
 <script src="tests/model_class_methods_test.js"></script>
 <script src="tests/model_errors_test.js"></script>
-<script src="tests/model_module_test.js"></script>
 <script src="tests/model_rest_test.js"></script>
 <script src="tests/model_uid_test.js"></script>
 <script src="tests/model_local_storage_test.js"></script>