CODEWITHSUNDEEP
javadatabasejpaplayframeworknested
John Doe
John Doe

Reputation: 1

Automatic save() for Nested Objects in PLAY! JPA

I have a Play!Framework application with the following structure:

@Entity
public class User extends Model{

    public User(String name, String email) {
        UserConfig userConfig = new UserConfig(this);
        userConfig.save();
    }
}

@Entity
public class UserConfig extends Model{

    @ManyToOne
    public User user;

    public UserOptions(User user) {
        this.user = user;
}

I create an instance of User through CRUD's admin page (CRUD module for Play! framework).

I thought that CRUD will automatically create the instance of UserConfig, but it doesn't.

What should I do to make CRUD save the nested entity?

Upvotes: 0

Views: 630

Answers (1)

Eugene Retunsky
Eugene Retunsky

Reputation: 13139

Use CascadeType attribute of ManyToMany or ManyToOne annotation. E.g. @ManyToOne(cascade = CascadeType.ALL).

More about the CascadeType here: http://docs.oracle.com/javaee/5/api/javax/persistence/CascadeType.html

Upvotes: 2

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