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stats:proc:unregisterstudent

Unregister Student

unregisterStudent(ident uid, ident id, ident studentId) {
  assume exists /exercise[id] && /exercise[id]/open && 
         exists /account[uid]/student && /account[uid]/student/id = studentId
      || exists /account[uid]/assistant[id];
 
  assume exists /exercise[id]/student[studentId]; # implies the exercise exists
 
  assume size(/exercise[id]/student[studentId]/result) = 0; # don't allow unregistering if results are there
  assume not exists /exercise[id]/student[studentId]/group; # don't allow if signed in a group
 
  remove /exercise[id]/student[studentId];
}
stats/proc/unregisterstudent.txt · Last modified: 2013/07/10 12:34 (external edit)