public function update()
 {
     $id = $_POST['id'];
     $name = $_POST['name'];
     $description = $_POST['description'];
     $start_date = $_POST['start_date'];
     $end_date = $_POST['end_date'];
     if (!empty($_POST['state'])) {
         $state = "2";
     } else {
         $state = "1";
     }
     Concours::update($id, $name, $description, $start_date, $end_date, $state);
     $lotName = $_POST['lotName'];
     $lotDescription = $_POST['lotDescription'];
     $imageId = $_POST['imageId'];
     $albumId = "1676393335976779";
     Lot::update($lotName, $lotDescription, $id, $imageId, $albumId);
 }