class AddEndsToMultiOrder < ActiveRecord::Migration[7.0]
  def change
    add_column :multi_orders, :ends, :datetime

    reversible do |dir|
      dir.up do
        MultiOrder.reset_column_information

        MultiOrder.find_each do |multi_order|
          max_ends = multi_order.orders.maximum(:ends)
          multi_order.update_columns(ends: max_ends) if max_ends.present?
        end
      end
    end
  end
end