class UpdateJournalForMessage < ActiveRecord::Migration
  def up
    journals = JournalsForMessage.where("m_parent_id is null and jour_type ='Principal' ")
    count = journals.count / 30 + 2
    transaction do
      for i in 1 ... count do i
        journals.page(i).per(30).each do |jour|
          act = UserActivity.where("act_type='JournalsForMessage' and act_id = #{jour.id}").first
          unless act.nil?
            jour.updated_on = act.updated_at
            jour.save
          end
        end
      end
    end
  end

  def down
  end
end