Game-Jaming/Backend/Controllers/GameJam/UpdateGameJam.php

<?php
require_once "../../../bootstrap.php";
require_once "../Admin/Admin.php";
use Backend\Models\GameJam;

if(isAdmin()){
    if(isset($_POST['updateGameJam'])) {
        $gameJam = GameJam::find($_POST['gameJamId']);
        if($gameJam){

            $gameJam->name = $_POST['gameJamName'];

            $gameJam->start_time = $_POST["startDate"]."T".$_POST["startTime"];

            $gameJam->end_time = $_POST["endDate"]."T".$_POST["endTime"];

            if (!empty($_POST['keyWord'])) {
                $gameJam->key_word = $_POST['keyWord'];
            }else{
                $gameJam->key_word = null;
            }

            $gameJam->description = $_POST['description'];
            if ($gameJam->save()) {

            }
        }
    }

}