# File lib/after_commit/connection_adapters.rb, line 5
        def transaction_with_callback(*args, &block)
          # @disable_rollback is set to false at the start of the
          # outermost call to #transaction.  After committing, it is
          # set to true to prevent exceptions causing a spurious
          # rollback.
          outermost_call = @disable_rollback.nil?
          @disable_rollback = false if outermost_call
          transaction_without_callback(*args, &block)
        ensure
          @disable_rollback = nil if outermost_call
        end