Add data source attach example

examples/datasource-app.js

@@ -1,4 +1,5 @@
 var DataSource = require('../../jugglingdb').DataSource;
+var ADL = require('../../jugglingdb').ADL;
 var ds = new DataSource('memory');
 
 // define models
@@ -91,5 +92,21 @@ Article.create(function(e, article) {
     });
 });
 
+// should be able to attach a data source to an existing model
+var adl = new ADL();
 
+Color = adl.define('Color', {
+  name: String
+});
+
+// attach
+ds.attach(Color);
+
+Color.create({name: 'red'});
+Color.create({name: 'green'});
+Color.create({name: 'blue'});
+
+Color.all(function (err, colors) {
+  console.log(colors);
+});
 

lib/adl.js

@@ -329,7 +329,7 @@ function hiddenProperty(where, property, value) {
     Object.defineProperty(where, property, {
         writable: false,
         enumerable: false,
-        configurable: false,
+        configurable: true,
         value: value
     });
 }

lib/datasource.js

@@ -241,17 +241,29 @@ DataSource.prototype.mixin = function (ModelCtor) {
  */
 
 DataSource.prototype.attach = function (ModelCtor) {
+  var properties = ModelCtor.schema.definitions[ModelCtor.modelName].properties;
+  var settings = ModelCtor.schema.definitions[ModelCtor.modelName].settings;
+
   this.mixin(ModelCtor);
 
   if(this.adapter) {
     // pass control to adapter
     this.adapter.define({
         model: ModelCtor,
-          properties: ModelCtor.properties,
-          settings: ModelCtor.settings
+        properties: properties,
+        settings: settings
     });
   }
   
+  // redefine the schema
+  hiddenProperty(ModelCtor, 'schema', this);
+  
+  // add to def
+  this.definitions[ModelCtor.modelName] = {
+      properties: properties,
+      settings: settings
+  };
+  
   return this;
 }
 

lib/model.js

@@ -32,6 +32,7 @@ ModelBaseClass.prototype._initProperties = function (data, applySetters) {
     var self = this;
     var ctor = this.constructor;
     var ds = ctor.schema.definitions[ctor.modelName];
+    
     var properties = ds.properties;
     data = data || {};