yamadapc

var mongoose = require('mongoose');
var native = mongoose.Document.prototype.toObject;

module.exports = function(schema/* options [could make it safer :)]*/) {
  schema.methods.toObject = function() {
    var _this = this;
    
    var obj = mongoose.Document.prototype.toObject.apply(this, arguments);
    
    var extraneous = Object.keys(this).filter(function(key) {