stats:proc:signupgroup
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| Both sides previous revision Previous revision Next revision | Previous revision Next revision Both sides next revision | ||
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stats:proc:signupgroup [2011/09/29 00:38] Patrick Michel |
stats:proc:signupgroup [2011/09/29 19:37] Patrick Michel |
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| <code xcend> | <code xcend> | ||
| - | signUpGroup(ident id, ident studentId, ident groupId) { | + | signUpGroup(ident uid, ident id, ident studentId, ident groupId) { |
| + | assume exists //accounts/account[uid]/assistant[id] || //accounts/account[uid]/student/id = studentId; | ||
| + | | ||
| assume exists //exercises/exercise[id]/students/student[studentId]; # implies the existence of the exercise | assume exists //exercises/exercise[id]/students/student[studentId]; # implies the existence of the exercise | ||
| assume exists //exercises/exercise[id]/groups/group[groupId]; # also implies it, but once is really enough | assume exists //exercises/exercise[id]/groups/group[groupId]; # also implies it, but once is really enough | ||
| | | ||
| assume not exists //exercises/exercise[id]/students/student[studentId]/group; | assume not exists //exercises/exercise[id]/students/student[studentId]/group; | ||
| - | assume count(groupId, //exercises/exercise[id]/students/student/group) < //exercises/exercise[id]/groups/group[groupId]/maxSize; | + | assume //exercises/exercise[id]/groups/group[groupId]/curSize < //exercises/exercise[id]/groups/group[groupId]/maxSize; |
| | | ||
| insert //exercises/exercise[id]/students/student[studentId]/group groupId; | insert //exercises/exercise[id]/students/student[studentId]/group groupId; | ||
| - | } # roles: assistant[id], student[studentId] | + | update //exercises/exercise[id]/groups/group[groupId]/curSize (//exercises/exercise[id]/groups/group[groupId]/curSize + 1); |
| + | } | ||
| </code> | </code> | ||
stats/proc/signupgroup.txt · Last modified: 2013/07/10 12:34 (external edit)
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