cantsave.js

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

console.log('\n===========');
console.log('    mongoose version: %s', mongoose.version);
console.log('========\n\n');

var dbname = 'testing_cantsave';
console.log('dbname: %s', dbname);
mongoose.connect('localhost', dbname);
mongoose.connection.on('error', function () {
  console.error('connection error', arguments);
});

var schema = new Schema({
   name    : { type: String, required: true }
  ,customer  : { type: Schema.ObjectId, required: true , ref: 'Customer'}
  ,extension   : { type: Number, required: true}
  ,timeout   : { type: Number, default: 5}
  ,ddi     : { type: String}
  ,email     : { type: String}
  ,description   : { type: String}
  ,pin     : { type: Number}
  ,digits    : [ {  digit   : { type : String}, target  : { type: String} }]
});

var A = mongoose.model('A', schema);

mongoose.connection.on('open', function () {
  var a = new A({
      name: 'cantsave'
    , extension: 33
    , customer: new mongoose.Types.ObjectId });

  a.save(function (err, a) {
    if (err) return done(err);

    A.findById(a, function (err, doc) {
      console.error('found', doc);
      done(err);
    });
  })
});

function done (err) {
  if (err) console.error(err.stack);
  mongoose.connection.db.dropDatabase(function () {
    mongoose.connection.close();
  });
}