on-demand links on schedule page

An interim solution implemented, which will work only for single file items. Probably, multi-file items will need a rethinking along the lines of my previous post. Current implementation uses a single extra filename field in the remote database. And the logic to automatically add this is

if ( ($CATEGORYNAME=="Special") OR ($CATEGORYNAME=="Discourse")  )
  {
  if (Strncmp($NEXT_FILENAME,$FILENAME,7))
    $DOWNLOAD_FILENAME=$FILENAME;

  if (strcasecmp(trim($NEXT_DESCRIPTION),trim($DESCRIPTION)) )
    $DOWNLOAD_FILENAME=$FILENAME;

    }

with

 $DOWNLOAD_FILENAME="";

if the condition fails.