Hibernate - Spring - ConstraintViolationException - UniqueConstraint - spring-boot

Question

I'm trying to make some fixtures for my Profile model but every time I'm trying to save it "again" after I did an update, I get this message:
nested exception is org.hibernate.exception.ConstraintViolationException: could not execute statement
This is my Profile class:
#Entity
#Data
#Builder
#ToString(of = {"birthday", "discordId", "description", "spokenLanguages"})
#NoArgsConstructor
#AllArgsConstructor
#Table(name = "profile", uniqueConstraints = #UniqueConstraint(columnNames = "discordId"))
public class Profile implements Serializable {
/**
*
*/
private static final long serialVersionUID = 1L;
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private int idProfile;
private Date birthday;
#Column(name="discordId", insertable=true, updatable=false)
private String discordId;
private String description;
#ElementCollection(fetch = FetchType.EAGER)
private Set<String> spokenLanguages = new LinkedHashSet<String>();
#JsonIgnore
#OneToMany(fetch = FetchType.EAGER)
private Set<ProfileGame> profileGames = new LinkedHashSet<>();
#OneToOne(mappedBy = "profile", cascade = CascadeType.ALL, fetch = FetchType.LAZY, optional = false)
private User user;
#ManyToOne
private TimeSlot timeSlot;
}
Here is the call:
#Order(7)
#Test
void fillProfileGame() {
List<Profile> profileList = this.profileRepository.findAll();
for (Profile profile : profileList) {
List<Game> gameList = this.gameRepository.findAll();
Collections.shuffle(gameList);
int rndNbGame = new Random().ints(1, 5).findFirst().getAsInt();
for (int i = 1; i <= rndNbGame; i++) {
int rndLevel = new Random().ints(1, 100).findFirst().getAsInt();
int rndRanking = new Random().ints(1, 3000).findFirst().getAsInt();
Game rndGame = gameList.get(0);
gameList.remove(0);
ProfileGame profileGames = new ProfileGame(profile, rndGame, "level-" + rndLevel,
"ranking-" + rndRanking);
this.profileGameRepository.save(profileGames);
this.gameRepository.save(rndGame);
}
this.profileRepository.save(profile);
}
}
So what I understand is that Hibernate won't let me update this object because it has a unique contraint field ?
How do we proceed when we want a field to be unique and still being able to update other fields ?

Answer 1

From the code snippet, what I see is that there are some unique constraints applied on the column 'discordId'.
#Table(name = "profile", uniqueConstraints = #UniqueConstraint(columnNames = "discordId"))
and
#Column(name="discordId", insertable=true, updatable=false)
private String discordId;
As you can see, there is a parameter 'updatable' which is set to false. Therefore, when you are trying to update an already existing object, hibernate is throwing UniqueConstraintViolationException.
To fix this, set 'updatable=true' or remove it altogether and it should work fine.
#Column(name="discordId", insertable=true, updatable=true)
private String discordId;