-- EXAMS ARE TODO; THIS IS JUST AN UNUSED STUB
Exam
    course              CourseId
    name                Text
    description         Text
    begin               UTCTime
    end                 UTCTime
    registrationBegin   UTCTime
    registrationEnd     UTCTime
    deregistrationEnd   UTCTime
    ratingVisible       Bool     -- may participants see their own rating yet
    statisticsVisible   Bool     -- may participants view statistics over all participants (should not be allowed for 'small' courses)
--ExamEdit
--    user                UserId
--    time                UTCTime
--    exam                ExamId
--ExamUser
--    user                UserId
--    examId              ExamId
--    -- CONTINUE HERE: Include rating in this table or separately?
--    UniqueExamUser user   examId
-- By default this file is used in Model.hs (which is imported by Foundation.hs)