dumbed down driver

config/test.js

@@ -4,5 +4,5 @@ module.exports = {
     password: "admin",
     // user: "root",
     // password: "F5530A8D59CC1AE8CB100C2A9A11709EC351107A94E4BB29204CB228678BAE69",
-    database: "blog"
+    database: "test"
 };

lib/Base.js

@@ -87,8 +87,8 @@ Base.extend.call(Base.prototype, {
    */
   init: function() {
     this._cid = ++__cid;
-    this._changed = {};
     Base.extend.apply(this, arguments);
+    this._previous = {};
   },
 
   /**
@@ -111,7 +111,7 @@ Base.extend.call(Base.prototype, {
       var value = options, name = attrs;
       options = arguments[2];
       if (this[name] && this[name] === value) return this;
-      this._changed[name] = value;
+      this._previous[name] = this[name];
       this[name] = value;
       this.trigger('change');
     }
@@ -145,39 +145,35 @@ Base.extend.call(Base.prototype, {
   },
 
   /**
-   * changed
+   * dirty
    *
    * @return {object} attributes
    */
-  changed: function() {
+  dirty: function() {
     var attrs = {};
-    for(var key in this) {
-      if (key.charAt(0) === '_') continue;
-      if (typeof this[key] === 'function') continue;
-      if (!this.hasOwnProperty(key)) continue;
-      attrs[key] = this.get(key);
+    for(var key in this._previous) {
+      attrs[key] = this[key];
     }
     return attrs;
   },
 
   /**
-   * previous
+   * cleanUp
    *
-   * @return {object} attributes
+   * @return {this}
    */
-  previous: function() {
-    return this._changed;
+  cleanUp: function() {
+    this._previous = {};
+    return this;
   },
 
   /**
-   * clearChanges
+   * previous
    *
-   * @param {string} name attribute
-   * @return {this}
+   * @return {object} attributes
    */
-  clearChanges: function() {
-    this._changed = {};
-    return this;
+  previous: function() {
+    return this._previous;
   },
 
   /**