$syncData = Book::visible()
->whereIn('id', $bookIds)
- ->get(['id'])->pluck('id')->mapWithKeys(function ($bookId) use ($numericIDs) {
+ ->pluck('id')
+ ->mapWithKeys(function ($bookId) use ($numericIDs) {
return [$bookId => ['order' => $numericIDs->search($bookId)]];
});