merge

src/main/java/fr/istic/taa/jaxrs/DAO/QuizzDAO.java

@@ -10,14 +10,14 @@ public class QuizzDAO extends AbstractJpaDao<Integer, Quizz> {
         this.setClass(Quizz.class);
     }
 
-    public void deleteAllQustion(int quizzId) {
+    public void deleteAllQuestion(int quizzId) {
         EntityTransaction t = em.getTransaction();
         try {
             if (!t.isActive()) t.begin();
             Quizz quizz = em.find(Quizz.class, quizzId);
             if (quizz != null) {
                 quizz.getQuestions().clear();
-                em.merge(quizz); // ✅ merge instead of persist
+                em.merge(quizz);
             }
             t.commit();
         } catch (Exception e) {