notification email on student unlinking

sails/src/api/controllers/StudentController.js

@@ -478,6 +478,7 @@ module.exports = {
       //
       // Remove relationship
       //
+      var supervisor = stuSup.supervisor.toJSON();
       stuSup.destroy();
 
       //
@@ -487,11 +488,11 @@ module.exports = {
       if (student.license && student.license.number) {
         mailService.mailer()
         .send({
-          to: stuSup.supervisor.email,
+          to: supervisor.email,
           text: sails.__(
             {
               phrase: 'student_unlinked',
-              locale: stuSup.supervisor.lang
+              locale: supervisor.lang
             },
             {
               name: student.name,
@@ -508,18 +509,18 @@ module.exports = {
       //
       const socketToOmit = req.isSocket ? req.socket : undefined;
       const unlinkSupervisorFromStudentEvent = sails.hooks.events.unlinkSupervisorFromStudent(
-        stuSup.student,
-        stuSup.supervisor
+        student.id,
+        supervisor.id
       );
 
       sails.hooks.events.broadcastEvent(
-        sails.hooks.rooms.supervisor(stuSup.supervisor),
+        sails.hooks.rooms.supervisor(supervisor.id),
         unlinkSupervisorFromStudentEvent,
         socketToOmit
       );
 
       sails.hooks.events.broadcastEvent(
-        sails.hooks.rooms.student(stuSup.student),
+        sails.hooks.rooms.student(student.id),
         unlinkSupervisorFromStudentEvent,
         socketToOmit
       );