Multiselect Fixed by Changing Columns

backend/.idea/misc.xml

@@ -8,5 +8,5 @@
       </list>
     </option>
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_20" default="true" project-jdk-name="20" project-jdk-type="JavaSDK" />
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="20" project-jdk-type="JavaSDK" />
 </project>

backend/src/main/java/com/example/backend/anwprj/Database/DataBaseHandler.java

@@ -360,7 +360,7 @@ public class DataBaseHandler {
         try {
 
 
-            st.executeUpdate("update modules set activated=" + m.getActivated() + ", semesterid=" + m.getsemesterid() + ", name='" + m.getName() + "' where id=" + m.getid());
+            st.executeUpdate("update modules set activated=" + m.getActivated() + ", userid=" + m.getUserid() + " where id=" + m.getid());
 
 
             return getModule(m.getid());
@@ -382,6 +382,16 @@ public class DataBaseHandler {
         }
     }
 
+    public boolean deleteModuleBySemesterID(int id) {
+        try {
+            st.executeUpdate("delete from modules where semesterid=" + id);
+            st.executeUpdate("delete from entries where semesterid=" + id);
+            return true;
+        } catch (Exception ex) {
+            return false;
+        }
+    }
+
     public boolean deleteModule(int id) {
         try {
             st.executeUpdate("delete from modules where id=" + id);

backend/src/main/java/com/example/backend/anwprj/controller/ModuleController.java

@@ -169,6 +169,18 @@ public class ModuleController
     DELETE
     Delete A Module
      */
+    @CrossOrigin
+    @DeleteMapping("/module/bysemesterid")
+    public void deleteModuleBySemesterID(@RequestParam(name = "sessionid") String sessionid, @RequestParam(name="id") int id)
+    {
+        User u = UserSessionIDHandler.getUserBySessionID(sessionid);
+        if (u != null && u.getPermissions() == UserPermissions.admin.getValue())
+        {
+            db.deleteModuleBySemesterID(id);
+        }
+
+    }
+
     @CrossOrigin
     @DeleteMapping("/module")
     public void deleteModule(@RequestParam(name = "sessionid") String sessionid, @RequestParam(name="id") int id)