Grails 3/GORM - Log entry upon record change

Question

I have the following User class:

class User implements Serializable {

    private static final long serialVersionUID = 1

    transient springSecurityService

    String username
    String password
    String email

    String firstName
    String middleName
    String lastName

    ...

}

I want to make a new domain object UserNameChange when the first, middle, or last name changes:

class UserNameChange {
    User user
    String firstName
    String middleName
    String lastName
}

I know I can do this in a transactional service, but it would be better if I could accomplish the same thing in the User class. How can I do this atomically? For instance, is "beforeUpdate" always done transactionally?

Answer 1

By default the domain class' methods are NOT transactional. So you would have to use withTransaction():

class User {
  def beforeUpdate() {
    if( ![ 'firstName', 'middleName', 'lastName' ].any{ isDirty it } ) return 
    User.withTransaction{
      new UserNameChange( ... ).save()
    }
  }
}

You might also want to take a look at audit plugin