suppression de thread en cascade

WEB-INF/src/controleur/ThreadController.java

@@ -8,6 +8,7 @@ import jakarta.servlet.http.HttpServlet;
 import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;
 import modele.dao.DaoFollower;
+import modele.dao.DaoThread;
 import modele.dto.Follower;
 
 @WebServlet("/thread")
@@ -23,6 +24,7 @@ public class ThreadController extends HttpServlet {
         String action = (String) req.getParameter("action");
         String vue;
         DaoFollower daoFollower = new DaoFollower();
+        DaoThread daoThread = new DaoThread();
         int idThread = Integer.parseInt(req.getParameter("id"));
         Follower follow = new Follower(username, idThread);
 
@@ -39,6 +41,10 @@ public class ThreadController extends HttpServlet {
                 daoFollower.delete(follow);
                 vue = "WEB-INF/vue/filsSuivis.jsp";
                 break;
+            case "delete":
+                daoThread.delete(idThread);
+                vue = "WEB-INF/vue/accueil.jsp";
+                break;
             default:
                 vue = "WEB-INF/vue/fils.jsp";
         }

WEB-INF/vue/compte.jsp

@@ -113,7 +113,7 @@
                                 </div>
                                 <div class="d-flex">
                                     <a class="me-3 align-self-center btn btn-primary" href="?chat=<%= thread.getId_thread() %>">Ouvrir <i class="bi-chat-fill"></i></a>
-                                    <a class="me-3 align-self-center btn btn-danger" href="?delete=<%= thread.getId_thread() %>">Supprimer <i class="bi-x-circle-fill"></i></a>
+                                    <a class="me-3 align-self-center btn btn-danger" href="thread?action=delete&id=<%= thread.getId_thread() %>">Supprimer <i class="bi-x-circle-fill"></i></a>
                                 </div>
                             </div>
                         </div>

baseDeDonnee/init.sql

 DROP TABLE IF EXISTS followers;
 DROP TABLE IF EXISTS messages;
-DROP TABLE IF EXISTS followers;
 DROP TABLE IF EXISTS threads;
 DROP TABLE IF EXISTS users;
 
@@ -26,7 +25,7 @@ CREATE TABLE followers (
     
     PRIMARY KEY (username, id_thread),
     FOREIGN KEY (username) REFERENCES users(username),
-    FOREIGN KEY (id_thread) REFERENCES threads(id_thread)
+    FOREIGN KEY (id_thread) REFERENCES threads(id_thread) ON DELETE CASCADE
 );
 
 CREATE TABLE messages (
@@ -37,6 +36,6 @@ CREATE TABLE messages (
     time        TIMESTAMP WITH TIME ZONE,
 
     FOREIGN KEY (sender) REFERENCES users(username),
-    FOREIGN KEY (id_thread) REFERENCES threads(id_thread)
+    FOREIGN KEY (id_thread) REFERENCES threads(id_thread) ON DELETE CASCADE
 );