protected function toggleParticipant(Event $event)
{
$isParticipant = !empty(EventUser::where('user_id', $this->request->participant_id)->where('event_id', $event->id)->first());
if ($isParticipant) {
$event->users()->detach([$this->request->participant_id]);
$value = -1;
} else {
$event->users()->attach([$this->request->participant_id]);
$value = 1;
}
return data([compact('value')]);
}