Re: Clarity needed
| From: | TG | Date: | Wed, 04 Feb 2009 22:35:29 +0000 |
| Subject: | Re: Clarity needed | ||
| Groups: | php.general | ||
| Request: | Send a blank email to php-general+get-287661@lists.php.net to get a copy of this message | ||
Yup, that's how I've done it before:
tutors
-------------
id
tutorname
courses
-------------
id
coursename
xref_tutors_courses
--------------------------------
tutor_id
course_id
But I've been known to do things goofy before. I'm curious to see how
other people handle it.
-TG
----- Original Message -----
From: tedd <tedd@sperling.com>
To: <php-general@lists.php.net>
Date: Wed, 4 Feb 2009 17:24:35 -0500
Subject: [PHP] Clarity needed
> Hi gang:
>
> I need some fog removed.
>
> I have a problem where I have an unlimited number of tutors teaching
> an unlimited number of courses. When I call upon a tutor, I want to
> see all the courses they teach.
>
> In my old days, I would just set up a linked list of courses and
> attach it to the tutor (another linked list). As a tutor adds
> courses, I would just add the course to the end of the linked list.
> If the tutor deletes a course, then I would remove it from the list
> by changing a single pointer. If I needed a list of all the courses
> the tutor taught, I would just run down the linked list pulling them
> out as needed.
>
> But now I have to think in terms of records in a database. I'll
> eventually figure it out, but what are your suggestions/solutions?
>
> I understand that I can have one record set up for each tutor, and
> another record set up for each course, and then tie the two together
> by another record like an assignment. That way I can have as many
> assignments as I want tying courses to tutors.
>
> It that the way you guys would do it?
>
> Thanks,
>
> tedd