class UpdateGroupOrderTotals < ActiveRecord::Migration[4.2]
  def self.up
    say "If you have ever modified an order after it was settled, the group_order's " +
        'price may be calculated incorrectly. This can take a lot of time on a ' +
        'large database.'

    say 'If you do want to update the ordergroup totals, open the rails console ' +
        '(by running `rails c`), and enter:'

    say 'GroupOrder.all.each { |go| go.order.closed? and go.update_price! }', subitem: true

    say 'You may want to check first that no undesired accounting issues are introduced. ' +
        'It may be wise to discuss this with those responsible for the ordering finances.'
  end

  def self.down; end
end