gistfile1.txt

class CallLog < ActiveRecord::Base
  has_one :transaction, :as => :transaction_object
  composed_of :rate, :class_name => "Money", :mapping => [%w(rate_cents cents), %w(currency currency) ]
  
  def update_call_time(session)
    if session.in_conference?
      time = Time.now - last_billed_time
      self.last_billed_time = Time.now
      self.billable_time = billable_time + time
      save!
      session.transaction.update_phone_transaction
    end
  end
end