function addNonAcademicAchievement(Achievement $achievement)
 {
     $connectionObject = Connection::getInstance();
     $connection = $connectionObject->get_connection();
     $student_id = $achievement->getStudentId();
     $school_id = $achievement->getSchoolId();
     $achievement_case = $achievement->getAchievementCase();
     $date = $achievement->getDate();
     $case = $achievement->getCase();
     $place = $achievement->getPlace();
     $stmt = $connection->prepare("INSERT INTO achievement (student_id, school_id, achievement_case) VALUES (?,?,?)");
     $stmt->bind_param("iis", $student_id, $school_id, $achievement_case);
     $result = $stmt->execute();
     $stmt->close();
     $achievement_id = mysqli_insert_id($connection);
     $stmt = $connection->prepare("INSERT INTO non_acadamic (achievement_id,ncase,place,date) VALUES (?,?,?,?)");
     $stmt->bind_param("isis", $achievement_id, $case, $place, $date);
     $result = $stmt->execute();
     $stmt->close();
     return $result;
 }