Friday, April 29, 2011

Re: should teacher and student stay together???

On Fri, Apr 29, 2011 at 11:28 AM, Tan Cheng <davidtan824@gmail.com> wrote:
> Hi all,
>
> A very basic question, I naively believe that there's no dumb
> question...
>
> I'm creating a database, and the users are categorized into teachers
> and students, obviously, one student has and belongs to many teachers
> and vice versa, so there is a HABTM relationship between students and
> teachers.
>
> So in cake, which is the better approach?
>
> 1) Put them in the "users" table and use a field to distinguish
> students and teachers, but <b>how do I describe the HABTM relationship
> between them? Do I need to create a "students_teachers" table?</b>

You could add 2 columns to your users table, model & foreign_key. The
students & teachers tables can also have a user_id column to associate
back the other way.

> 2) Create three tables, "students", "teachers", and a
> "students_teachers" table.

Yes, do that as well. These are not mutually exclusive.

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