How do I retry entire activerecord transactions in rails?

How do I go about retrying entire ActiveRecord transactions in rails in event of a mysql connection failure for a few seconds?

So far I have gone about retrying just the last query that failed by overriding the execute method of ActiveRecord::ConnectionAdapters::Mysql2Adapter

class ActiveRecord::ConnectionAdapters::Mysql2Adapter
def execute(*args)
    begin
      super(*args)
    rescue ActiveRecord::StatementInvalid => e
      retry
    end
  end
end

This is however leads to inconsistent transactions due to which I decided its better if I retry the entire transaction instead of just the last query.

Is there anyway I can get the details of the current transaction and just retry it from the beginning?