Incrementing Object not working ( mongoose, node.js, express, mongodb ) - mongodb

Question

I have a commit of this app up here
The basic problem is, in server.js # line 234 I have a method that increments the counter in the param oject. This does not work - you can look in models.js for the appropriate datamodels.
At line 242, I have another increment to a counter in the pivot object which is an array of docs within a param object. Here, the counter which is set up identically works - I'm not sure what I'm doing wrong here.
EDIT: Added code from github
The data models
var Pivot = new Schema({
value : {type: String, validate: [validateLength, 'length error'] }
, destination : {type: String, validate: [validateUrl, 'url error'] }
, counter : {type: Number, default: 0 }
});
var Param = new Schema({
title : {type: String, validate: [validateLength, 'length error'] }
, desc : {type: String, validate: [validateDesc, 'length error'] }
, defaultUrl : {type: String, validate: [validateUrl, 'url error'] }
, counter : {type: Number, default: 0 }
, pivots : [Pivot]
});
mongoose.model('Param', Param);
The Route Pre-Param conditions
app.param('title', function(req,res, next){
Param.findOne({"title":req.param('title')}, function(err, record){
if (err) return next(err);
if (!record) return next (new Error('Parameter Not Found') );
req.record = record;
next();
});
});
app.param('value', function(req,res, next){
req.pivot = req.record.findPivot(req);
if (!req.pivot) return next (new Error('Pivot Not Found') );
next();
});
The Redirects
app.get('/redirect/:title', function(req, res, next){
req.record.counter++;
req.record.save();
res.redirect(req.record.defaultUrl);
});
app.get('/redirect/:title/:value', function(req, res, next){
req.pivot.counter++;
req.record.save();
res.redirect(req.pivot.destination);
});
Some Debugging
console.dir(req.record.counter)
Seems to output the parent object, and counter shows up as [Circular].
{ _atomics: {},
_path: 'counter',
_parent:
{ doc:
{ counter: [Circular],
pivots: [Object],
_id: 4dce2a3399107a8a2100000c,
title: 'varun',
desc: 'my blog',
defaultUrl: 'http://varunsrin.posterous.com/' },
activePaths:
{ paths: [Object],
states: [Object],
stateNames: [Object],
map: [Function] },
saveError: null,
isNew: false,
pres: { save: [Object] },
errors: undefined } }
Running console.dir(req.pivot.counter) on a pivot 'gmail' of the param above returns. In this case, the counter increments and displays successfully
{ _atomics: {},
_path: 'counter',
_parent:
{ parentArray:
[ [Circular],
_atomics: [],
validators: [],
_path: 'pivots',
_parent: [Object],
_schema: [Object] ],
parent: undefined,
doc:
{ counter: [Circular],
_id: 4dce2a6499107a8a21000011,
value: 'gmail',
destination: 'http://www.gmail.com/' },
activePaths:
{ paths: [Object],
states: [Object],
stateNames: [Object] },
saveError: null,
isNew: false,
pres: { save: [Object] },
errors: undefined } }

Answer 1

Confirmed, this is working again with Mongoose v1.3.5 - the code was fine, Mongoose had a bug.
Turned out to be a bug in Mongoose v.1.3.1 - 1.3.3. It has been fixed in a recent commit, but isnt in the main build yet
https://github.com/LearnBoost/mongoose/issues/342