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Re: Latest DB schema
Forgot to mention.
1) The name problem_list means pl_ prefix that is already taken by person_list.
2) If we are planning to use problems with connections to something else - we need a description for this. Currently, I only defined topic to problem (many-to-many) connection.
2006/11/3, Ilya A. Volynets-Evenbakh <ilya@total-knowledge.com>:
Alexey Parshin wrote:
> I don't think we need versioning on studen't solution. The
> problem_solutions could be replaced with student_solutions if that
> clarifies the situation.
OK.
> We do need something like solution_template or correct_solution - to
> verify solutions automatically. We do need versioning on that one.
That should be part of problem_content, since it is versioned, and (for
things like template-based solutions) can
also be translated.
BTW, I think we need to change problem table names from topic_problem*
to problem_list, etc., since
problems can be linked to other objects (tests, contests), or be
completely stand-alone.
At least it'll be possible in future.
Another (purely cosmetic) thing, I just noticed, is that we have
_contents tables, while
it should be _content.
>
> 2006/11/3, Ilya A. Volynets-Evenbakh <
ilya@total-knowledge.com
> <mailto:ilya@total-knowledge.com>>:
>
> Uh oh
> 1. Solution type is tied to the problem
> 2. Student's solutions to a problem are not versioned. It's not
> content.
> 3. Word "Solution" refers to two different things:
> - Correct solution, that problem author provides, and which is
> carried
> along with the problem itself
> - Student's solution, which student submits for verification
> against
> "Correct solution"
>
> We really need to find a different terminology, to disambiguate
> "solutions"
>
>
> Alexey Parshin wrote:
> > The solutions are submitted to problem_solutions table.
> >
>
> --
> Ilya A. Volynets-Evenbakh
> Total Knowledge. CTO
> http://www.total-knowledge.com <http://www.total-knowledge.com>
>
>
>
>
> --
> Alexey Parshin,
> http://www.sptk.net
--
Ilya A. Volynets-Evenbakh
Total Knowledge. CTO
http://www.total-knowledge.com
--
Alexey Parshin,
http://www.sptk.net