function execute($requests)
 {
     $filename = $requests['filename'];
     $target_area = $requests['target_area'];
     $tail = '&target_area=' . urlencode($target_area);
     if (!db_portal_imaage4filename($filename)) {
         portal_client_redirect('edit_portal_image', '画像を削除できませんでした', $tail);
     }
     db_image_data_delete($filename);
     db_portal_delete_portal_image($filename);
     portal_client_redirect('edit_portal_image', '画像を削除しました', $tail);
 }
 function execute($requests)
 {
     $file = $_FILES['upfile'];
     $target_area = $requests['target_area'];
     $tail = 'target_area=' . $target_area;
     if (empty($file) || $file['error'] === UPLOAD_ERR_NO_FILE) {
         portal_client_redirect('edit_portal_image', '画像ファイルを指定してください', $tail);
     }
     $file_info = t_check_image($file);
     if (!$file_info) {
         portal_client_redirect('edit_portal_image', '画像は' . IMAGE_MAX_FILESIZE . 'KB以内のGIF・JPEG・PNGにしてください', $tail);
     }
     $filename = sprintf('module_portal_%d.%s', time(), $file_info['format']);
     db_image_data_delete($filename);
     db_portal_delete_portal_image($filename);
     if (!admin_insert_c_image($_FILES['upfile'], $filename)) {
         portal_client_redirect('edit_portal_image', '画像が登録できませんでした', $tail);
     }
     db_portal_insert_portal_image($filename);
     portal_client_redirect('edit_portal_image', '画像を登録しました', $tail);
 }