10-3 儲存學生投稿稿件

1. 儲存的$op值為submission_data_store，會送至index.php，故會執行index.php的這段流程。
2. 在轉向部份，記得加上op=submission_data_show，這樣才會顯示學生投稿，而非顯示投稿主題。

   //新增資料
   case 'submission_data_store':
       $id = Submission_data::store();
       header("location: {$_SERVER['PHP_SELF']}?op=submission_data_show&id=$id");
       exit;

3. 修改class/Submission_data.php的store()，然後擷取出投稿主題的投稿密碼，並比對輸入的密碼，若是不同，則轉向離開。審核時間務必註解掉，另外，亦可加入投稿的最後更新時間。

   //新增資料到 submission_data Submission_data::store()
   public static function store($data_arr = [])
   {
       global $xoopsDB, $xoopsUser;
       //Tools::chk_is_adm('', '', __FILE__, __LINE__);
   
       //XOOPS表單安全檢查
       if (empty($data_arr)) {
           Utility::xoops_security_check();
           $data_arr = $_POST;
       }
   
       $submission = Submission::get(['id' => $data_arr['submission_id']]);
       if (isset($submission['info']['pass_code'])) {
           if ($submission['info']['pass_code'] != $data_arr['pass_code']) {
               redirect_header($_SERVER['HTTP_REFERER'], 3, "投稿密碼錯誤");
           }
       }
       $data_arr['info']['latest_update'] = date("Y-m-d H:i:s", xoops_getUserTimestamp(time()));
   
       foreach ($data_arr as $key => $value) {
           $$key = Tools::filter($key, $value, 'write', self::$filter_arr);
       }
   
   
       $sql = "INSERT INTO `" . $xoopsDB->prefix("submission_data") . "` (
           `submission_id`,
           `name`,
           `grade`,
           `teacher`,
           `title`,
           `content`,
           `info`
       ) VALUES(
           '{$submission_id}',
           '{$name}',
           '{$grade}',
           '{$teacher}',
           '{$title}',
           '{$content}',
           '{$info}'
       )";
       $xoopsDB->queryF($sql) or Utility::web_error($sql);
   
       //取得最後新增資料的流水編號
       $id = $xoopsDB->getInsertId();
   
       if ($id) {
           $TadUpFiles = new TadUpFiles("submission");
           $TadUpFiles->set_col("submission_data_id", $id);
           $TadUpFiles->set_dir('subdir', "/{$submission_id}/{$id}");
           $TadUpFiles->upload_file('submission_data_files', '', '', '', '', true, false);
       }
       return $id;
   }

   檔案上傳的路徑，可以指定放到投稿主題編號下的文章編號，避免投稿者互相看到彼此的作品圖片