demarches-normaliennes/db/migrate/20210630101808_add_parent_id_to_procedure_revision_type_de_champ.rb

class AddParentIdToProcedureRevisionTypeDeChamp < ActiveRecord::Migration[6.1]
  def change
    add_belongs_to :procedure_revision_types_de_champ, :parent, index: true, foreign_key: { to_table: :procedure_revision_types_de_champ }
  end
end