# File lib/active_record/vendor/simple.rb, line 209
    def transaction_name
      raise TransactionError, "Transaction Error: No transaction open." if @__transaction_checkpoint__.nil?
      Transaction::Simple.debug_io << "#{'|' * @__transaction_level__} Transaction Name: #{@__transaction_names__[-1].inspect}\n" unless Transaction::Simple.debug_io.nil?
      @__transaction_names__[-1]
    end