A simple and very generic controller for my RESTful-API node module

gistfile1.coffee

mongoose = require 'mongoose'
Model    = mongoose.model 'Room'

single_model = 'room'
plural_model = 'rooms'

# exports.before_filters = []
# exports.after_filters = []
# exports.secure = (req, is_nested, is_secure_callback) -> is_secure_callback(null, true)

exports.finder = (req, ident, is_index, callback) ->
  if is_index
    Model.find({}, callback)
  else
    Model.findOne({_id: ident}, callback)

exports.index = (req, res, data) -> data null, req[plural_model]
exports.read = (req, res, data) -> data null, req[single_model]
exports.create = (req, res, data) -> Model.create req.body, data
exports.delete = (req, res, data) -> Model.delete { _id: req[single_model]._id }, data
exports.update = (req, res, data) ->
  req[single_model].set req.body
  req[single_model].save (err) -> data(err, req[single_model])