Promise utilities for Sequelize models
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This project is no longer maintained and part of my source code "attic". Do not use this repository without fully understanding the code.

Promise utilities for Sequelize models.


Define a model in sequelize and create a Qdb instance for the model.

var Sequelize = require('sequelize');
var Qdb = require('q-db');

var sequelize = new Sequelize('somethingsomethingmysql');

var user = sequelize.define('user', {
    id       : { type: Sequelize.INTEGER, autoIncrement: true, primaryKey: true },
    name     : { type: Sequelize.STRING },
    password : { type: Sequelize.STRING }

var quser = new Qdb(sequelize, user);

Then you can use it and it'll return promises for just about anything.

// create a user with the given properties
var promise = quser.create({ name: 'philipp', password: 'notplaintextplease' });
// update password where name = 'philipp'
var promise = quser.update({ password: 'wait' }, { name: 'philipp' });

With everything being properties and promises it gets really when you combine it with a framework like Connect, Express. Especially when you have extra middleware that handles promises:

// Adds the `.promise` method to every response object, so promises can be returned
app.use(function (req, res, next) {
    res.promise = function (promise) {
            .then(function (result) {
                res.json(200, result);
            .fail(function (err) {
                res.json(err.httpcode || 500, err.message);

Assuming you'd want to return all properties of a model, you'd be able to do something like this:

app.get('/api/todo/:id', function (req, res) {