MongoDB Helper using QBox

app.js

var mongo = require("./mongoHelper").connect("localhost", 27017, "test");
mongo.collection("collname", function(coll) {

});

mongoHelper.js

var qbox = require('qbox');
var mongo = require('mongodb');

exports.connect = function(host, port, database) {
	return new MongoHelper(host, port, database);
};

function MongoHelper(host, port, database) {
	
	var $ = qbox.create();
	
	var db =  new mongo.Db(database, new mongo.Server(host, port), {});
	db.open(function() {
		console.info("Connected to Mongo db: " + database + " @ host: " + host +" port: " + port);
		$.start();
	});
	
	this.collection = function(name, callback) {
		
		$.ready(function() {
			
			db.collection(name, afterCollConnected);
			
			function afterCollConnected (err, coll) {

				if(err) {
					console.error("Connecting to collection:routes failed /n" + JSON.stringify(err));
					throw new Error("Connecting to collection:routes failed /n" + JSON.stringify(err));
				} else {
					console.info("Connected to collection: " + name);
					callback(coll);
				}
			}
		});
	};
}