module OpenFoodNetwork::Locking
  # http://rhnh.net/2010/06/30/acts-as-list-will-break-in-production
  def with_isolation_level_serializable
    transaction do
      connection.execute "SET SESSION CHARACTERISTICS AS TRANSACTION ISOLATION LEVEL SERIALIZABLE"
      yield
    end
  end
end

class ActiveRecord::Base
  extend OpenFoodNetwork::Locking
end