public function getRecentlyCreatedBooks($count = 20, $page = 0, $additionalQuery = false)
{
$query = $this->permissionService->enforceBookRestrictions($this->book)->orderBy('created_at', 'desc');
if ($additionalQuery !== false && is_callable($additionalQuery)) {
$additionalQuery($query);
}
return $query->skip($page * $count)->take($count)->get();
}