RequestComments::delete PHP Method

    public function delete($id)
    {
        if ($this->user->getClass() < User::CLASS_ADMIN) {
            throw new Exception(L::get("PERMISSION_DENIED"), 401);
        }
        $comment = $this->get($id);
        $this->db->query("DELETE FROM request_comments WHERE id = " . $comment["id"]);
        $this->request->updateCommentsAmount($id, 1);
    }

 case validateRoute('POST', 'requests/\\d+/comments'):
     $requests = new Requests($db, $user);
     $mailbox = new Mailbox($db, $user);
     $comments = new RequestComments($db, $user, $requests, $mailbox);
     $comments->add((int) $params[1], $postdata["data"]);
     httpResponse($result, $totalCount);
     break;
 case validateRoute('PATCH', 'requests/\\d+/comments/\\d+'):
     $comments = new RequestComments($db, $user);
     $comments->update((int) $params[1], (int) $params[3], $postdata["postData"]);
     httpResponse($result, $totalCount);
     break;
 case validateRoute('DELETE', 'requests/\\d+/comments/\\d+'):
     $requests = new Requests($db, $user);
     $comments = new RequestComments($db, $user, $requests);
     $comments->delete((int) $params[3]);
     httpResponse();
     break;
 case validateRoute('GET', 'mailbox'):
     $mailbox = new Mailbox($db, $user);
     list($result, $totalCount) = $mailbox->query((int) $_GET["location"] ?: 0, (int) $_GET["limit"] ?: 10, (int) $_GET["index"] ?: 0);
     httpResponse($result, $totalCount);
     break;
 case validateRoute('PATCH', 'mailbox/\\d+'):
     $mailbox = new Mailbox($db, $user);
     httpResponse($mailbox->update((int) $params[1], $postdata));
     break;
 case validateRoute('POST', 'mailbox'):
     $mailbox = new Mailbox($db, $user);
     httpResponse($mailbox->create($postdata));
     break;