/**
  * Remove the specified resource from storage.
  *
  * @param  int $id
  * @return Response
  */
 public function destroy($slug, $id)
 {
     $event = Event::findBySlug($slug);
     if ($id == 'self') {
         if (\Auth::check()) {
             EventRegistration::where('user_id', '=', \Auth::id())->where('event_id', '=', $event->id)->delete();
         }
     } else {
         EventRegistration::destroy($id);
     }
 }