Add change / delete events

lib/dao.js

@@ -126,6 +126,7 @@ DataAccessObject.create = function (data, callback) {
     function modelCreated() {
       if (--wait === 0) {
         callback(gotError ? errors : null, instances);
+        if(!gotError) instances.forEach(Model.emit.bind('changed'));
       }
     }
   }
@@ -168,6 +169,7 @@ DataAccessObject.create = function (data, callback) {
           saveDone.call(obj, function () {
             createDone.call(obj, function () {
               callback(err, obj);
+              if(!err) Model.emit('changed', obj);
             });
           });
         }, obj);
@@ -607,6 +609,7 @@ DataAccessObject.remove =
   DataAccessObject.deleteAll =
     DataAccessObject.destroyAll = function destroyAll(where, cb) {
       if (stillConnecting(this.getDataSource(), this, arguments)) return;
+      var Model = this;
 
       if (!cb && 'function' === typeof where) {
         cb = where;
@@ -615,6 +618,7 @@ DataAccessObject.remove =
       if (!where) {
         this.getDataSource().connector.destroyAll(this.modelName, function (err, data) {
           cb && cb(err, data);
+          if(!err) Model.emit('deletedAll');
         }.bind(this));
       } else {
         // Support an optional where object
@@ -622,6 +626,7 @@ DataAccessObject.remove =
         where = this._coerce(where);
         this.getDataSource().connector.destroyAll(this.modelName, where, function (err, data) {
           cb && cb(err, data);
+          if(!err) Model.emit('deletedAll', where);
         }.bind(this));
       }
     };
@@ -635,11 +640,13 @@ DataAccessObject.removeById =
   DataAccessObject.deleteById =
     DataAccessObject.destroyById = function deleteById(id, cb) {
       if (stillConnecting(this.getDataSource(), this, arguments)) return;
+      var Model = this;
 
       this.getDataSource().connector.destroy(this.modelName, id, function (err) {
         if ('function' === typeof cb) {
           cb(err);
         }
+        if(!err) Model.emit('deleted', id);
       }.bind(this));
     };
 
@@ -684,6 +691,7 @@ setRemoting(DataAccessObject.count, {
  */
 DataAccessObject.prototype.save = function (options, callback) {
   if (stillConnecting(this.getDataSource(), this, arguments)) return;
+  var Model = this.constructor;
 
   if (typeof options == 'function') {
     callback = options;
@@ -740,6 +748,9 @@ DataAccessObject.prototype.save = function (options, callback) {
           updateDone.call(inst, function () {
             saveDone.call(inst, function () {
               callback(err, inst);
+              if(!err) {
+                Model.emit('changed', inst);
+              }
             });
           });
         });
@@ -811,7 +822,8 @@ DataAccessObject.prototype.updateAttributes = function updateAttributes(data, cb
   if (stillConnecting(this.getDataSource(), this, arguments)) return;
 
   var inst = this;
-  var model = this.constructor.modelName;
+  var Model = this.constructor
+  var model = Model.modelName;
 
   if (typeof data === 'function') {
     cb = data;
@@ -851,6 +863,7 @@ DataAccessObject.prototype.updateAttributes = function updateAttributes(data, cb
             done.call(inst, function () {
               saveDone.call(inst, function () {
                 cb(err, inst);
+                if(!err) Model.emit('changed', inst);
               });
             });
           });