MongoDB Controller
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Mongoid is an ODM (Object Document Mapper)
Framework for MongoDB, written in Ruby.

Mongoid (pronounced mann-goyd) is an Object-Document-Mapper
(ODM) for MongoDB written in Ruby. It was conceived in August,
2009 during a whiskey-induced evening at the infamous Oasis
in Florida, USA by Durran Jordan.

The philosophy of Mongoid is to provide a familiar API to
Ruby developers who have been using Active Record or Data Mapper,
while leveraging the power of MongoDB's schemaless and performant
document-based design, dynamic queries, and atomic modifier operations.

Sample Syntax:

class Artist
  include Mongoid::Document
  field :name, type: String
  embeds_many :instruments
end

class Instrument
  include Mongoid::Document
  field :name, type: String
  embedded_in :artist
end

syd = Artist.where(name: "Syd Vicious").between(age: 18..25).first
syd.instruments.create(name: "Bass")
syd.with(database: "bands", session: "backup").save!