class Email

email.rb

class Email < Message
  attr_accessor :to, :cc, :bcc

  validates :to, :presence => true, :on => :create
  validates :to, :cc, :bcc, :emails => true

  normalize_attribute :subject, :message

  attr_accessible :to, :cc, :bcc, :subject, :message

  def set_participants
    self << sender

    [to, cc, bcc].flatten.compact.each do |address|
      if matched_user = account.users.with_email(address).first
        self << matched_user
      end
    end

    [to, cc, bcc].flatten.compact.each do |address|
      self << account.find_user_or_contact_by_email_or_create_contact(address) do |contact|
        contact.user = users.first
      end
    end
  end

  def store_delivery_info
    self.delivery_info = { 
      :to => [to].flatten.compact,
      :cc => [cc].flatten.compact,
      :bcc => [bcc].flatten.compact
    }
  end
end