Source Model

class Source
  include Mongoid::Document
  include Mongoid::Slug
  include Mongoid::Timestamps # adds created_at and updated_at fields

  attr_reader :twitter_username, :rss_username

  embeds_one :twitter, :class_name => "Twitter"
  
  # fields
  field :name,        :type => String
  field :url,         :type => String
  field :active,      :type => Boolean, :default => true
  field :deleted,     :type => Boolean, :default => false
  field :source_type, :type => String,  :default => 'fighter'
  slug  :name

  
  # validations
  validates_inclusion_of  :source_type, :in => ['fighter', 'promotion', 'news-site', 'reporter']
  validates_presence_of   :name, :url, :source_type
  validates_uniqueness_of :url, :name
  
  # indexes
  index :name
  index :active
  index :deleted
  index [[:active, Mongo::DESCENDING], [:deleted, Mongo::DESCENDING]]
  index [[:slug, Mongo::DESCENDING], [:active,  Mongo::DESCENDING], [:deleted, Mongo::DESCENDING]]
  
  # scopes
  scope :active, where(:active => true, :deleted => false)
  
  def self.source_types
    types = []
    types.push(['Fighter', 'fighter'])
    types.push(['Promotion', 'promotion'])
    types.push(['News Source', 'news-site'])
    types.push(['Reporter', 'reporter'])
  end

  def twitter_username
    self.twitter.username
  end
  
  def rss_username
    "rss"
  end

end

Twitter Model

class Twitter
  # TODO
  # I think the problem might be the field names and how i am doing them in the forms
  include Mongoid::Document
  include Mongoid::Timestamps # adds created_at and updated_at fields

  field :username,      :type => String
  field :uid,           :type => String
  field :name,          :type => String

  before_update :get_uid
  
  embedded_in :source, :inverse_of => :twitter
  
  def get_uid 
    puts "*" * 150
    puts "THIS WAS CALLED"
    puts "*" * 150
   self.uid = "123123123123123"
  end
  
end