Java Community | Help. Code. Learn.•4d ago

How to set UUID as a primary key, and make an entry?

@Table("restaurant_group")
public class RestaurantGroup extends Base {
    @Id
    @GeneratedValue(strategy = GenerationType.UUID)
    private UUID id;

@Table("restaurant_group")
public class RestaurantGroup extends Base {
    @Id
    @GeneratedValue(strategy = GenerationType.UUID)
    private UUID id;

4 Replies

JavaBot•4d ago

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Rag...JN 🌌 🦡 👽 💰 🐊OP•4d ago

So if I tried to do this (without setting UUID manually)

    @Override
    public Mono<RestaurantGroup> createRestaurantGroup(String userId, RestaurantGroupCreateDTO restaurantGroupCreateDTO) {
        RestaurantGroup restaurantGroup = RestaurantGroupMapper.restaurantGroupCreateDTOToRestaurantGroup(restaurantGroupCreateDTO);
//        UUID uuid = UUID.randomUUID();
//        restaurantGroup.setId(uuid);
        return restaurantGroupRepository.save(restaurantGroup);
    }

    @Override
    public Mono<RestaurantGroup> createRestaurantGroup(String userId, RestaurantGroupCreateDTO restaurantGroupCreateDTO) {
        RestaurantGroup restaurantGroup = RestaurantGroupMapper.restaurantGroupCreateDTOToRestaurantGroup(restaurantGroupCreateDTO);
//        UUID uuid = UUID.randomUUID();
//        restaurantGroup.setId(uuid);
        return restaurantGroupRepository.save(restaurantGroup);
    }

It throws error as null value in column \"id\" of relation \"restaurant_group\" violates not-null constraint" If I tried to set manually (by uncommenting the lines)

Failed to update table [restaurant_group]; Row with Id [d3d8d8dd-305f-4cda-9e69-0d764d66837b] does not exist",

Failed to update table [restaurant_group]; Row with Id [d3d8d8dd-305f-4cda-9e69-0d764d66837b] does not exist",

I use webflux ok I found the solution

Rag...JN 🌌 🦡 👽 💰 🐊OP•4d ago

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How to set UUID as a primary key, and make an entry?