mongoose

minhas-praticas.js

  , mongoose = require('mongoose')
  , dbURI = 'mongodb://localhost/boilerplate'
  , db = mongoose.connection
  ;
mongoose.connect(dbURI);
// CONNECTION EVENTS
// Quando a conexão der certo
db.on('connected', function () {
  console.log('Conexão mongoose aberta com ' + dbURI);
});

// Se a conexão apresentar erros
db.on('error',function (err) {
  console.log('Error: ' + err);
});

// Quando for desconectar
db.on('disconnected', function () {
  console.log('Conexão mongoose desconectada');
});

// Quando a conexão abrir
db.on('open', function () {
  console.log('Conexão mongoose aberta');
});

// Se o processo Node finalizar, fechar a conexão do Mongosse
process.on('SIGINT', function() {
  db.close(function () {
    console.log('Conexão mongoose fechada porque o processo node foi terminado');
    process.exit(0);
  });
});

mongoose-connection-best-practices

// Bring Mongoose into the app
var mongoose = require( 'mongoose' );

// Build the connection string
var dbURI = 'mongodb://localhost/mongoose-best-practices';

// Create the database connection
mongoose.connect(dbURI);

// CONNECTION EVENTS
// When successfully connected
mongoose.connection.on('connected', function () {
  console.log('Mongoose default connection open to ' + dbURI);
});

// If the connection throws an error
mongoose.connection.on('error',function (err) {
  console.log('Mongoose default connection error: ' + err);
});

// When the connection is disconnected
mongoose.connection.on('disconnected', function () {
  console.log('Mongoose default connection disconnected');
});

// When the connection is open
mongoose.connection.on('open', function () {
  console.log('Mongoose default connection is open');
});

// If the Node process ends, close the Mongoose connection
process.on('SIGINT', function() {
  mongoose.connection.close(function () {
    console.log('Mongoose default connection disconnected through app termination');
    process.exit(0);
  });
});

um-schema-mongoose.js

//Schema
var Schema = mongoose.Schema
  , registerSchema = new Schema({
    name: { type: String, default: '', required: true }
      , date: { type: String, default: '', required: true }
      , email: { type: String, default: '', required: true}
      , created_at: { type: Date, default: Date.now }
  });
  
  //
  var regUser = mongoose.model('Users', registerSchema);
  //
  
  var dados = {
    name: req.param('name')
      , date : req.param('date')
      , email : req.param('email')
  };
  var newDate = new regUser(dados)
    , msg = ''
    ;
  newDate.save(function(err, data){
    if(err){
      console.log('Erro: ', err);
      msg = 'Erro: ' + err;
    }else{
      console.log('Usuario cadastrado: ', data);
      msg = 'Usuario cadastrado: ' + JSON.stringify(data);
    }
  });
  res.end(msg);