Does Mongoose support the Mongodb `findAndModify` method?

The feature is not well (read: at all) documented, but after reading through the source code, I came up with the following solution.

Create your collection schema.

var Counters = new Schema({  _id: String,  next: Number     });

Create a static method on the schema which will expose the findAndModify method of the model's collection.

Counters.statics.findAndModify = function (query, sort, doc, options, callback) {  return this.collection.findAndModify(query, sort, doc, options, callback);};

Create your model.

var Counter = mongoose.model('counters', Counters);

Find and modify!

Counter.findAndModify({ _id: 'messagetransaction' }, [], { $inc: { next: 1 } }, {}, function (err, counter) {  if (err) throw err;  console.log('updated, counter is ' + counter.next);});

Bonus

Counters.statics.increment = function (counter, callback) {  return this.collection.findAndModify({ _id: counter }, [], { $inc: { next: 1 } }, callback);};Counter.increment('messagetransaction', callback);

This is fully supported in Mongoose 3.x now, though the name is slightly different.

http://mongoosejs.com/docs/api.html#model_Model.findOneAndUpdate

http://mongoosejs.com/docs/api.html#model_Model.findByIdAndUpdate

http://mongoosejs.com/docs/api.html#model_Model.findOneAndRemove

http://mongoosejs.com/docs/api.html#model_Model.findByIdAndRemove

Made working version increment for Mongoose 3.x

var mongoose = require('mongoose');var CounterSchema = new mongoose.Schema({    _id: String,    next: {type: Number, default: 1}});CounterSchema.statics.increment = function (counter, callback) {    return this.findByIdAndUpdate(counter, { $inc: { next: 1 } }, {new: true, upsert: true, select: {next: 1}}, callback);};

Use something like this:

Counter.increment('photo', function (err, result) {    if (err) {        console.error('Counter on photo save error: ' + err); return;    }    photo.cid = result.next;    photo.save();});

I hope someone come in handy