CODEWITHSUNDEEP
javamongodbspring-boot
Netsab612
Netsab612

Reputation: 103

How can I auto generate date with SpringBoot+MongoDB

I am using Spring Boot to access my MongoDB database. I have an entity called User and a UserRepository to have CRUD operations. I would like that each time I add a user, it also add a creation and update date. With traditionnal SQL database and JPA, I would use @PrePersist and @PreUpdate.

What would be the best way to do it in this case ?

I paste my User code below (but it is super simple) :

public class User {

    @Id
    public String id;

    public String username;

    public String password;

}

And the UserRepository :

@RepositoryRestResource(collectionResourceRel = "users", path="users")
    public interface UsersRepository extends MongoRepository<User, String>{

    public User findByUsername(String username);

}

Upvotes: 1

Views: 4074

Answers (1)

Saumil
Saumil

Reputation: 186

You would have to enable auditing feature and update User domain object.

  • Add joda-time maven dependency.

    <dependency> <groupId>joda-time</groupId> <artifactId>joda-time</artifactId> <version>2.9.9</version> </dependency>

  • Enable auditing support in spring configuration.

    <mongo:auditing />

  • Add 2 more properties in User.

@CreatedDate
private DateTime createdOn;

@LastModifiedDate
private DateTime updatedOn;

Please note, createdOn only gets added for the first time when Id field is set.

Upvotes: 4

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