private function checkCasts($casts)
{
$user = Auth::user();
$currentCasts = array_filter($casts, 'is_numeric');
$newCasts = array_diff($casts, $currentCasts);
foreach ($newCasts as $newCast) {
$cast = Cast::create(['name' => $newCast]);
$user->casts()->save($cast);
$currentCasts[] = $cast->id;
}
return $currentCasts;
}
