public function deleteEvent($eid)
 {
     EventListItem::deleteEventListItem($eid);
     Poll::deleteEventPolls($eid);
     $users = Invite::deleteInvites($eid);
     foreach ($users as $user) {
         Self::sendCancellation($eid, $user->email);
     }
     Event::deleteEvent($eid);
     return view('events/success_delete_event');
 }