public function applyForLeave()
 {
     $all = Input::all();
     $mgr = $this->getManager();
     $authUserId = $this->getUserId();
     $all['mgr_id'] = $mgr['id'];
     $all['user_id'] = $authUserId;
     $all['status'] = 'Eequest';
     //TODO
     //1) check if user exceed the no of days entitled for leaves fer year.
     $entitle = Entitlement::where('id', '=', $all['entitlement_id'])->first();
     /*
     $leaves = LeaveRequest::where('user_id', '=', $authUserId)
       ->where('entitlement_id', '=',  $all['entitlement_id'])->get();
     */
     $noOfDays = $entitle['no_of_days'];
     $leaveSum = DB::table('leave_requests')->where('user_id', '=', $authUserId)->where('entitlement_id', '=', $all['entitlement_id'])->sum('no_of_days');
     $totalLeaves = $leaveSum + $all['no_of_days'];
     if ($totalLeaves > $noOfDays) {
         return Response::jsend('fail', array('msg' => sprintf("You are Exceeding the Limit of %s", $entitle['name'])));
     }
     //2) if the user is already applied to that leave
     //3) create Leave request.
     LeaveRequest::create($all);
     return Response::jsend('success', array('msg' => 'Leave request is submitted.'));
 }