insert office in the list of valid supervisors

sails/src/api/models/Student.js

@@ -329,12 +329,17 @@ module.exports = {
 
 
       // filter null entries and map them to the supervisor object
-      var ss = _.compact(_.compact(stuSups).map(x => x.supervisor));
-      var so = _.compact(_.compact(supOffs).map(x => x.supervisor));
+      var ss = _.compact(_.compact(stuSups).map(x => x.supervisor)); // supervisors linked to student
+      var so = _.compact(_.compact(supOffs).map(x => x.supervisor)); // supervisors linked to office
 
       // filter from the second list those found in the first list
       var sups = so.filter(a => ss.findIndex(b => b.id == a.id) >= 0);
 
+      return [sups, Supervisor.find(id_sup)];
+    })
+    .spread((sups, me) => {
+      // The requester is an office, so it has to be appended to the list of valid supervisors
+      sups.append(me);
       return callback(null, sups);
     })
     .catch((err) => {