add(:object_id, references(:objects, type: :id), null: false)
add(:user_id, references(:users, type: :uuid, on_delete: :delete_all), null: false)
end
add(:object_id, references(:objects, type: :id), null: false)
add(:user_id, references(:users, type: :uuid, on_delete: :delete_all), null: false)
end