class ActiveRecord::ConnectionAdapters::TransactionState

def committed?
  @state == :committed
end

def initialize(state = nil)
  @state = state
  @parent = nil
end

def rolledback?
  @state == :rolledback
end

def set_state(state)
  if !VALID_STATES.include?(state)
    raise ArgumentError, "Invalid transaction state: #{state}"
  end
  @state = state
end