mongoose

简单例子

http://mongoosejs.com/docs/index.html

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$ npm install mongoose
var mongoose = require('mongoose');
mongoose.connect('mongodb://localhost/test');
var db = mongoose.connection;
db.on('error', console.error.bind(console, 'connection error:'));
db.once('open', function() {
  // we're connected!
  之后的所有处理都在这里
});

之后的所有处理都在 db.once 里面

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var kittySchema = mongoose.Schema({
  name: String
});
kittySchema.methods.speak = function () {
  var greeting = this.name
    ? "Meow name is " + this.name
    : "I don't have a name";
  console.log(greeting);
}

var Kitten = mongoose.model('Kitten', kittySchema);

var fluffy = new Kitten({ name: 'fluffy' });
fluffy.speak(); // "Meow name is fluffy"

  fluffy.save(function (err, fluffy) {
    if (err) return console.error(err);
    fluffy.speak();
  });

Kitten.find(function (err, kittens) {
  if (err) return console.error(err);
  console.log(kittens);
})


Kitten.find({ name: /^fluff/ }, callback);

schema