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 | class UpdatePurchaseWindowsAttributes < ActiveRecord::Migration
  def change
    add_column :purchase_windows, :objectid, :string
    add_column :purchase_windows, :checksum, :string
    add_column :purchase_windows, :checksum_source, :text
    remove_column :purchase_windows, :short_name, :string
    remove_column :purchase_windows, :dates, :date
    remove_column :purchase_windows, :organisation_id, :integer
    add_reference :purchase_windows, :referential, type: :bigint, index: true
  end
end
 |