Question

i have a doubt. Imagine that i have three categories: student, worker, student/worker.

the correct is :

           ProfissonalArea

    |           |                  |
    |           |                  |
student    worker/student        worker

or exists a better way to do that? the problem is that a student can have a work.

thanks

Answer 1

Why does a person have to be associated with one category only? That will only force you to enumerate all possible combinations. You would probably be better off with a multi-value field where multiple categories can be specified simultaneously.

If that is not possible, at least use inheritance, so that e.g. the case of a working student will be an implementation of both a worker and a student, rather than a different thing altogether.