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stats:proc:removeparticipant [2011/09/29 00:26] Patrick Michel |
stats:proc:removeparticipant [2013/07/10 12:34] (current) |
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<code xcend> | <code xcend> | ||
- | removeParticipant(ident id, ident studentId) { | + | removeParticipant(ident uid, ident id, ident studentId) { |
- | assume exists //exams/exam[id]/results/participant[studentId]; # implies the exam exists, which is implicitly true anyway | + | assume exists /account[uid]/student && /account[uid]/student/id = studentId && /exam[id]/free |
+ | || exists /account[uid]/examiner[id]; | ||
- | remove //exams/exam[id]/results/participant[studentId]; | + | assume exists /exam[id]/participant[studentId]; # implies the exam exists, which is implicitly true anyway |
- | } # roles: examiner[id] | + | |
+ | assume size(/exam[id]/participant[studentId]/result) = 0; # don't allow to remove if results are there | ||
+ | |||
+ | remove /exam[id]/participant[studentId]; | ||
+ | } | ||
</code> | </code> | ||