var mongoose = require('mongoose') var Schema = mongoose.Schema; console.log('Running mongoose version %s', mongoose.version); /** * Console schema */ var consoleSchema = Schema({ name: String , manufacturer: String , released: Date }) var Console = mongoose.model('Console', consoleSchema); /** * Game schema */ var gameSchema = Schema({ name: String , developer: String , released: Date , consoles: [{ type: Schema.Types.ObjectId, ref: 'Console' }] }) var Game = mongoose.model('Game', gameSchema); /** * Connect to the console database on localhost with * the default port (27017) */ mongoose.connect('mongodb://localhost/console', function (err) { // if we failed to connect, abort if (err) throw err; // we connected ok createData(); }) /** * Data generation */ function createData () { Console.create({ name: 'Nintendo 64' , manufacturer: 'Nintendo' , released: 'September 29, 1996' }, function (err, nintendo64) { if (err) return done(err); Game.create({ name: 'Legend of Zelda: Ocarina of Time' , developer: 'Nintendo' , released: new Date('November 21, 1998') , consoles: [nintendo64] }, function (err) { if (err) return done(err); example(); }) }) } /** * Population */ function example () { Game .findOne({ name: /^Legend of Zelda/ }) .populate('consoles') .exec(function (err, ocinara) { if (err) return done(err); console.log( '"%s" was released for the %s on %s' , ocinara.name , ocinara.consoles[0].name , ocinara.released.toLocaleDateString()); done(); }) } function done (err) { if (err) console.error(err); Console.remove(function () { Game.remove(function () { mongoose.disconnect(); }) }) }