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stats:proc:addparticipant [2011/09/29 18:55]
Patrick Michel
stats:proc:addparticipant [2013/07/10 12:34] (current)
Line 3: Line 3:
 <code xcend> <code xcend>
 addParticipant(ident uid, ident id, ident studentId) { addParticipant(ident uid, ident id, ident studentId) {
-  assume exists //accounts/​account[uid]/​examiner[id];​+  assume exists /account[uid]/student && /​account[uid]/​student/​id = studentId && /​exam[id]/​free 
 +      || exists ​/​account[uid]/​examiner[id];​
  
-  assume exists ​//exams/exam[id]; # implicitly true in OO implementations +  assume exists /exam[id]; # implicitly true in OO implementations 
-  assume ​exists //accounts/​account/​student[studentId];+  assume ​count (studentId, ​/​account/​student/id) = 1;
   ​   ​
-  assume not exists ​//exams/exam[id]/results/​participant[studentId];​+  assume not exists /​exam[id]/​participant[studentId];​
   ​   ​
-  insert ​//exams/exam[id]/results/​participant[studentId];​+  insert /​exam[id]/​participant[studentId];​
 } }
 </​code>​ </​code>​
  
  
stats/proc/addparticipant.1317315313.txt.gz · Last modified: 2011/09/29 18:55 by Patrick Michel