Small MC

orders.js

$.observable = function(model) {
  model.Vent = $({});

  var handleEvent = function(vent, args) {
    var argArr = Array.prototype.slice.call(args);
    model.Vent[vent].apply(model.Vent, argArr);
    return model;
  };

  model.trigger = function() { return handleEvent('trigger', arguments); };
  model.on      = function() { return handleEvent('on', arguments); };
  model.off     = function() { return handleEvent('off', arguments); };
  model.one     = function() { return handleEvent('one', arguments); };

  return model;
};

/* Models */
var Orders = function() {
  var self = this;

  self.new = function(data) {
    self.trigger( "new", [data]);
  };

  self.get = function() {
    $.ajax({
      method: 'GET',
      dataType: 'json',
      url: [whatever]
    }).done(self.new);
  };

  $.observable(self);
};

/* Controller */
$(function() {
  var orders = new Orders;

  orders.get();

  /* Listen for events on the model */
  orders.on('new', function(e, data) {
    console.log("data from the model GET", data);
  });
  
});