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stats:proc:signupgroup [2011/10/15 20:19]
Patrick Michel
stats:proc:signupgroup [2013/07/10 12:34] (current)
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 <code xcend> <code xcend>
 signUpGroup(ident uid, ident id, ident studentId, ident groupId) { signUpGroup(ident uid, ident id, ident studentId, ident groupId) {
-  assume exists ​//exercises/​exercise[id] && ​//exercises/​exercise[id]/​open &&  +  assume exists /​exercise[id] && /​exercise[id]/​open &&  
-         ​exists ​//accounts/​account[uid]/​student && ​//accounts/​account[uid]/​student/​id = studentId +         ​exists /​account[uid]/​student && /​account[uid]/​student/​id = studentId 
-      || exists ​//accounts/​account[uid]/​assistant[id];​+      || exists /​account[uid]/​assistant[id];​
  
-  assume exists ​//exercises/​exercise[id]/students/​student[studentId];​ # implies the existence of the exercise +  assume exists /​exercise[id]/​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 /​exercise[id]/​group[groupId];​ # also implies it, but once is really enough
   ​   ​
-  assume not exists ​//exercises/​exercise[id]/students/​student[studentId]/​group;​ +  assume not exists /​exercise[id]/​student[studentId]/​group;​ 
-  assume ​//exercises/​exercise[id]/groups/​group[groupId]/​curSize < //exercises/​exercise[id]/groups/​group[groupId]/​maxSize;​+  assume /​exercise[id]/​group[groupId]/​curSize < /​exercise[id]/​group[groupId]/​maxSize;​
   ​   ​
-  insert ​//exercises/​exercise[id]/students/​student[studentId]/​group groupId; +  insert /​exercise[id]/​student[studentId]/​group groupId; 
-  update ​//exercises/​exercise[id]/groups/​group[groupId]/​curSize (//exercises/​exercise[id]/groups/​group[groupId]/​curSize + 1);+  update /​exercise[id]/​group[groupId]/​curSize (/​exercise[id]/​group[groupId]/​curSize + 1);
 } }
 </​code>​ </​code>​
stats/proc/signupgroup.1318702777.txt.gz · Last modified: 2011/10/15 20:19 by Patrick Michel