JonKernPA

class Blog
  include MongoMapper::Document

  # Attributes ::::::::::::::::::::::::::::::::::::::::::::::::::::::
  key :title, String
  key :category_id, ObjectId
  key :archive_after, Time

  # Assocations :::::::::::::::::::::::::::::::::::::::::::::::::::::
  belongs_to :category

JonKernPA

class Idea
  include MongoMapper::Document
  key :brilliance, String, :default => "Dark Matter Sucks!"
  many :ratings
  belongs_to :user
  key :user_id, ObjectId

  def to_s
    text = "#{user.name} had this IDEA: #{brilliance}\n\tRATINGS:\n"
    ratings.each do |r|

anfedorov

function I(x) { return x; }

function walk(obj, pre, post) {
    var k, v;
    obj = (pre||I)(obj);
    if (typeof(obj) === 'object') {
        for (k in obj) if (obj.hasOwnProperty(k)) {
            v = (post||I)(walk(obj[k], pre, post));
            if (v === undefined) {
                delete obj[k];