[RedTyger]

Originally Posted by Paul M

What do you mean by "not searching for it" ?

The lastposters id is not stored anywhere, so an SQl query would need running (or the existing one modifying).

You have to click on the username link and it "searches" for it, querying it by individual request. Specifically this code in member.php.

else if ($vbulletin->GPC['find'] == 'lastposter' AND $foruminfo['forumid'])
{
	$_permsgetter_ = 'lastposter fperms';
	$forumperms = fetch_permissions($foruminfo['forumid']);
	if (!($forumperms & $vbulletin->bf_ugp_forumpermissions['canview']))
	{
		print_no_permission();
	}

	if ($vbulletin->userinfo['userid'] AND in_coventry($vbulletin->userinfo['userid'], true))
	{
		$tachyjoin = "LEFT JOIN " . TABLE_PREFIX . "tachythreadpost AS tachythreadpost ON " .
			"(tachythreadpost.threadid = thread.threadid AND tachythreadpost.userid = " . $vbulletin->userinfo['userid'] . ')';
	}
	else
	{
		$tachyjoin = '';
	}

	// check if there is a forum password and if so, ensure the user has it set
	verify_forum_password($foruminfo['forumid'], $foruminfo['password']);

	require_once(DIR . '/includes/functions_misc.php');
	$forumslist = $forumid . ',' . fetch_child_forums($foruminfo['forumid']);

	require_once(DIR . '/includes/functions_bigthree.php');
	// this isn't including moderator checks, because the last post checks don't either
	if ($coventry = fetch_coventry('string')) // takes self into account
	{
		$globalignore_post = "AND post.userid NOT IN ($coventry)";
		$globalignore_thread = "AND thread.postuserid NOT IN ($coventry)";
	}
	else
	{
		$globalignore_post = '';
		$globalignore_thread = '';
	}

	cache_ordered_forums(1);

	$datecutoff = $vbulletin->forumcache["$foruminfo[forumid]"]['lastpost'] - 30;

	$thread = $db->query_first_slave("
		SELECT thread.threadid
			" . ($tachyjoin ? ', IF(tachythreadpost.lastpost > thread.lastpost, tachythreadpost.lastpost, thread.lastpost) AS lastpost' : '') . "
		FROM " . TABLE_PREFIX . "thread AS thread
		$tachyjoin
		WHERE thread.forumid IN ($forumslist)
			AND thread.visible = 1
			AND thread.sticky IN (0,1)
			AND thread.open <> 10
			" . (!$tachyjoin ? "AND lastpost > $datecutoff" : '') . "
			$globalignore_thread
		ORDER BY lastpost DESC
		LIMIT 1
	");

	if (!$thread)
	{
		eval(standard_error(fetch_error('invalidid', $vbphrase['user'], $vbulletin->options['contactuslink'])));
	}

	$getuserid = $db->query_first_slave("
		SELECT post.userid
		FROM " . TABLE_PREFIX . "post AS post
		WHERE threadid = $thread[threadid]
			AND visible = 1
			$globalignore_post
		ORDER BY dateline DESC
		LIMIT 1
	");

	if (!($forumperms & $vbulletin->bf_ugp_forumpermissions['canviewothers']) AND ($getuserid['userid'] != $vbulletin->userinfo['userid'] OR $vbulletin->userinfo['userid'] == 0))
	{
		print_no_permission();
	}

	$vbulletin->GPC['userid'] = $getuserid['userid'];
}

Not hard to see why it's not included by default, just wondered if there was an easier way. I guess not. Anyway, it's there for anyone else who was wondering.