javascript - Why doesn't this node.js + mongoose code save to the DB? - Stack Overflow

I'm learning Node.js + mongodb using a simple tutorial - the problem is that I can't get it to save().

This is the code I'm running:

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

PostSchema = new Schema({
    title: String,
    body: String,
    date: Date
});

mongoose.connect('mongodb://localhost/posterdb');
mongoose.model('Post', PostSchema);
var Post = mongoose.model('Post');

// create a post and save it
var post = new Post();

post.title = 'My first post';
post.body = 'Post body';
post.date = Date.now();

post.save(function(err) {
    console.log('error check');
    if(err) { throw err; }
    console.log('saved');
    mongoose.disconnect();
});

It doesn't print anything on the console. Any ideas?

I'm learning Node.js + mongodb using a simple tutorial - the problem is that I can't get it to save().

This is the code I'm running:

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

PostSchema = new Schema({
    title: String,
    body: String,
    date: Date
});

mongoose.connect('mongodb://localhost/posterdb');
mongoose.model('Post', PostSchema);
var Post = mongoose.model('Post');

// create a post and save it
var post = new Post();

post.title = 'My first post';
post.body = 'Post body';
post.date = Date.now();

post.save(function(err) {
    console.log('error check');
    if(err) { throw err; }
    console.log('saved');
    mongoose.disconnect();
});

It doesn't print anything on the console. Any ideas?

• javascript
• mongodb
• node.js
• mongoose

Share Follow asked Dec 7, 2011 at 8:00 Bee SanBee San 2,67522 gold badges2121 silver badges2020 bronze badges 4

• 1 Does the connection get established? Try the event mongoose.connection.on("open", function() { ... }). – pimvdb Commented Dec 7, 2011 at 8:08
• Hmm, interesting. It doesn't get established. mongoose.connect('mongodb://localhost/posterdb', function(err){ console.log(err); }); Prints : { stack: [Getter/Setter], arguments: undefined, type: undefined, message: 'failed to connect to [localhost:27017]' } – Bee San Commented Dec 7, 2011 at 8:14
• 1 Are you sure the server is running at that host and port? – pimvdb Commented Dec 7, 2011 at 8:19
• Indeed, the server wasn't running. Had no data directory by default. Thanks! – Bee San Commented Dec 7, 2011 at 8:28

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2 Answers 2

Sorted by: Reset to default 4

Turns out my mongodb server wasn't running because I didn't have a /data/db directory installed by default upon installing mongo in ubuntu. Created that, started the server, everything worked fine. Solved.

If anyone found this question for the same reason I did, then maybe this will help:

Found that I couldn't save a new object to my collection. I had made a schema method named validate() which interfered with MongoDB's validate() function, so that's why it wasn't saving to the DB and was giving me zero errors. So don't name a method in your schema entitled validate(). Hopefully my dumbness will save you a lot of time.