public static function saveSport(Sport $sport)
 {
     $conn = connection::getConnectionObject();
     $con = $conn->getConnection();
     $sql = $con->prepare("INSERT INTO Sport VALUES (?,?)");
     $sportid = $sport->getSportId();
     $sportname = $sport->getName();
     $sql->bind_param("ss", $sportid, $sportname);
     if ($sql->execute() == TRUE) {
         /*echo "New record created successfully (sport added)";*/
     } else {
         //echo "Error in adding sport: " . $sql . "<br>" ;
         echo "Error in adding sport:";
     }
 }