Mongoose

Paquet Node.js pour l'accès à un service MongoDB

Liens

• http://www.atinux.fr/2011/10/15/tutoriel-sur-mongoose-mongodb-avec-node-js/
• http://mongoosejs.com/docs/index.html
• Building Node Applications with MongoDB and Backbone (source code)

Premiers pas

1. suivez l'installation de MongoDB
2. suivez l'installation de Node.js
3. Exécutez le programme Node.js suivant

npm install mongoose
node blog.js
node findblog.js

blog.js

var mongoose = require('mongoose');
var Schema = mongoose.Schema;

mongoose.connect('mongodb://localhost/blog', function(err) {
  if (err) { throw err; }
});

console.log("Create Schema");

var blogSchema = new Schema({
  title:  String,
  author:  { type : String, match: /^[a-zA-Z0-9-_]+$/ },
  body:   String,
  url:   String,
  comments: [{ body: String, date: Date }],
  date: { type: Date, default: Date.now },
  hidden: Boolean,
  meta: {
    votes: Number,
    favs:  Number
  }
});

// assign a function to the "statics" object of our blogSchema
blogSchema.statics.findByAuthor = function (author, cb) {
  this.find({ author: new RegExp(author, 'i') }, cb);
}

// blogSchema.set('autoIndex', false);

console.log("Create Model");

var Blog = mongoose.model('Blog', blogSchema);

console.log("Create Blogs");


var b1 = new Blog({
    title: 'FablabAIR',
    author: 'dd',
    body: 'AIR is a fablab (fabrication laboratory) for engineering students in Grenoble. AIR helps them to innovate, invent and make ambient intelligence (AmI) products.',
    url: 'http://air.imag.fr',
});
b1.save(function (err) {
  if (err) { throw err; }
  console.log('Successful new blog');
});

var b2 = new Blog({
    title: 'FabMSTIC',
    author: 'jm',
    body: 'AIR is a fablab (fabrication laboratory) for researchs and eduction in computer sciences and mathematics',
    url: 'http://fabmstic.liglab.fr',
});
b2.save(function (err) {
  if (err) { throw err; }
  console.log('Successful new blog');
});

findblog.js

var mongoose = require('mongoose');
var Schema = mongoose.Schema;

mongoose.connect('mongodb://localhost/blog', function(err) {
  if (err) { throw err; }
});

console.log("Create Schema");

var blogSchema = new Schema({
  title:  String,
  author:  { type : String, match: /^[a-zA-Z0-9-_]+$/ },
  body:   String,
  url:   String,
  comments: [{ body: String, date: Date }],
  date: { type: Date, default: Date.now },
  hidden: Boolean,
  meta: {
    votes: Number,
    favs:  Number
  }
});

// assign a function to the "statics" object of our blogSchema
blogSchema.statics.findByAuthor = function (author, cb) {
  this.find({ author: new RegExp(author, 'i') }, cb);
}

// blogSchema.set('autoIndex', false);

console.log("Create Model");

var Blog = mongoose.model('Blog', blogSchema);

console.log("Find Blogs");

Blog.find(function (err, blogs) {
  if (err) return console.error(err);
  console.log(blogs)
});

Blog.findByAuthor('dd', function (err, blogs) {
  if (err) return console.error(err);
  console.log(blogs);
});

Vérifiez depuis le shell mongo (./bon/mongo)

use blog
show collections
db.blogs.find()