Question

Hey all,
I’m very new to mongodb, mongoose and node.js. I would like to create a little demo to see how mongoose works. After installing (and testing the correctes of) node.js I downloaded mongoose and tried the following code (also provided on the mongoose website):

require.paths.unshift('vendor/mongoose');
var mongoose = require('mongoose').Mongoose;

mongoose.model('User', {

properties: ['first', 'last', 'age', 'updated_at'],

cast: {
  age: Number,
  'nested.path': String
},

indexes: ['first'],

setters: {
    first: function(v){
        return this.v.capitalize();
    }
},

getters: {
    full_name: function(){ 
        return this.first + ' ' + this.last 
    }
},

methods: {
    save: function(fn){
        this.updated_at = new Date();
        this.__super__(fn);
    }
},

static: {
    findOldPeople: function(){
        return this.find({age: { '$gt': 70 }});
    }
}

});

var db = mongoose.connect('mongodb://localhost/db');

var User = db.model('User');

var u = new User();
u.name = 'John';
u.save(function(){
sys.puts('Saved!');
});

User.find({ name: 'john' }).all(function(array){

});

The problem is that when I run node myfile.js I got the following error:

node.js:181
    throw e; // process.nextTick error, or 'error' event on first tick
    ^
Error: Cannot find module 'mongoose'
at Function._resolveFilename (module.js:320:11)
at Function._load (module.js:266:25)
at require (module.js:364:19)
at Object.<anonymous> (/my/path/to/mongoose+node test/myfile.js:2:16)
at Module._compile (module.js:420:26)
at Object..js (module.js:426:10)
at Module.load (module.js:336:31)
at Function._load (module.js:297:12)
at Array.<anonymous> (module.js:439:10)
at EventEmitter._tickCallback (node.js:173:26)

Now, I have to say again that I’m really new to this, so my folder called “mongoose+node test” has inside only the mongoose folder which contains a bunch of JavaScript files, and of course myfile.js. Am I maybe missing something?

Answer 1

In the new version, you don’t need to use .Mongoose .

Just replace the following :

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

with:

var mongoose = require('mongoose')