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Re: Latest DB schema

The problem is solved, if solution is presented and signed by some teacher.
While placing the signature is trivial (another table with id and two references, to solution and to teacher), we still have to think on how to enforce the "teacher" role. Is it one of the ACLs for the problem?

2006/11/3, Ilya A. Volynets-Evenbakh <ilya@total-knowledge.com>:
OK. This looks very good to me. Even better then what I had originally
in mind
(Per-object notifications, that would be sent to all authors in case of
object change). Per-object per-user preferences are certainly better!

Now, another thing that Sergey brought up, and which wasn't answered yet:

>> Also how do we know if a problem was "solved"/"not yet solved" by student?

Alexey Parshin,

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