Help with simple plug-in please...

[Razasharp]

Would appreciate some help with this plug-in please

I am trying to add something to the hook:

($hook = vBulletinHook::fetch_hook('forumdisplay_sort')) ? eval($hook) : false;

in forumdisplay.php

I simply want to add:

case 'dateline':

so that I can sort threads in a particular forum in the order they were created (rather than by last-post).

I found this thread which outlines how to do it by hacking files - but I'd rather it be a plug-in if possible: https://vborg.vbsupport.ru/showthrea...d+forumdisplay

Here is a snippet of the forum display code so you don't have to hunt it out

PHP Code:

// look at sorting options:
    if ($vbulletin->GPC['sortorder'] != 'asc')
    {
        $sqlsortorder = 'DESC';
        $order = array('desc' => 'selected="selected"');
        $vbulletin->GPC['sortorder'] = 'desc';
    }
    else
    {
        $sqlsortorder = '';
        $order = array('asc' => 'selected="selected"');
    }

    switch ($sortfield)
    {
        case 'title':
            $sqlsortfield = 'thread.title';
            break;
        case 'lastpost':
            $sqlsortfield = 'thread.lastpost';
            break;
        case 'replycount':
        case 'views':
        case 'postusername':
            $sqlsortfield = $vbulletin->GPC['sortfield'];
            break;
        case 'voteavg':
            if ($foruminfo['allowratings'])
            {
                $sqlsortfield = 'voteavg';
                break;
            } // else, use last post
        default:
            $handled = false;
            ($hook = vBulletinHook::fetch_hook('forumdisplay_sort')) ? eval($hook) : false;
            if (!$handled)
            {
                $sqlsortfield = 'thread.lastpost';
                $sortfield = 'lastpost';
            }
    }
    $sort = array($sortfield => 'selected="selected"');

    if (!can_moderate($forumid, 'canmoderateposts'))
    {
        if (!($forumperms & $vbulletin->bf_ugp_forumpermissions['canseedelnotice']))
        {
            $visiblethreads = " AND visible = 1 ";
        }
        else
        {
            $visiblethreads = " AND visible IN (1,2)";
        }
    }
    else
    {
        $visiblethreads = " AND visible IN (0,1,2)";
    }

    $hook_query_fields = $hook_query_joins = $hook_query_where = '';
    ($hook = vBulletinHook::fetch_hook('forumdisplay_query_threadscount')) ? eval($hook) : false; 


Thanks in advance!