/**
* Destroy the given book.
* @param Book $book
* @throws \Exception
*/
public function destroy(Book $book)
{
foreach ($book->pages as $page) {
$this->pageRepo->destroy($page);
}
foreach ($book->chapters as $chapter) {
$this->chapterRepo->destroy($chapter);
}
$book->views()->delete();
$book->permissions()->delete();
$this->permissionService->deleteJointPermissionsForEntity($book);
$book->delete();
}