public static function supprimerCategorie($nom)
 {
     $nomCat = Categorie::getDefaultCategorie();
     require_once "../Modele/Film.class.php";
     $films = Film::getListeFilms();
     foreach ($films as $film) {
         if ($film['categorie'] == $nom) {
             Film::setDefaultCategorie($nomCat['nom'], $film['id']);
         }
     }
     SingletonRequete::getBase()->requeteParam("DELETE FROM Category WHERE category_name=?", array($nom));
 }