public function returnOrder()
{
$cartManager = new CartManager();
$bookManager = new BookManager();
$userManager = new UserManager();
$cartId = "";
$books = "";
if (!empty($_POST)) {
$cartId = trim(strip_tags($_POST['cartId']));
// Retrouver la commande correspondante
$booksIds = $cartManager->findAllBooksIdsInCart($cartId);
$books = $bookManager->showBooks($booksIds);
// Récupérer l'id de l'utilisateur
$userId = $cartManager->getUserIdByCart($cartId);
$user = $userManager->find($userId);
$data = ['books' => $books, 'user' => $user];
$this->show('admin/confirm_order_return', $data);
} else {
$this->show('admin/confirm_order_return');
}
}