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stats:proc:unregisterstudent [2011/10/15 19:42]
Patrick Michel
stats:proc:unregisterstudent [2012/05/29 16:49]
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 exists //​accounts/​account[uid]/​student+  assume ​exists //​exercises/​exercise[id] && //​exercises/​exercise[id]/​open &&  
-  assume ​//​accounts/​account[uid]/​student/​id = studentId;+         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]/​students/​student[studentId];​ # implies the exercise exists
  
-  assume //​exercises/​exercise[id]/​open;​ 
-  ​ 
   assume size(//​exercises/​exercise[id]/​students/​student[studentId]/​result) = 0; # don't allow unregistering if results are there   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)