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stats:proc:unregisterstudent [2011/10/02 10:28]
Patrick Michel stats:proc:removestudent renamed to stats:proc:unregisterstudent
stats:proc:unregisterstudent [2011/11/07 16:02]
Patrick Michel
Line 3: Line 3:
 <code xcend> <code xcend>
 unregisterStudent(ident uid, ident id, ident studentId) { unregisterStudent(ident uid, ident id, ident studentId) {
-  assume //​accounts/​account[uid]/​student/​id = studentId;+  assume ​exists //​exercises/​exercise[id] && //​exercises/​exercise[id]/​open &&  
 +         ​exists //​accounts/​account[uid]/​student && ​//​accounts/​account[uid]/​student/​id = studentId 
 +      || exists //​accounts/​account[uid]/​assistant[id];
  
-  assume exists //​exercises/​exercise[id]/students/​student[studentId];​ # implies the exercise exists+  assume exists //​exercises/​exercise[id]/​student[studentId];​ # implies the exercise exists 
 + 
 +  assume size(//​exercises/​exercise[id]/​students/​student[studentId]/​result) = 0; # don't allow unregistering if results are there 
 +  assume not exists //​exercises/​exercise[id]/​students/​student[studentId]/​group;​ # don't allow if signed in a group
   ​   ​
   remove //​exercises/​exercise[id]/​students/​student[studentId];​   remove //​exercises/​exercise[id]/​students/​student[studentId];​
 } }
 </​code>​ </​code>​
stats/proc/unregisterstudent.txt · Last modified: 2013/07/10 12:34 (external edit)