Thread muss mindestens 2 oder mehr Berechtigungsgruppen haben.

PHP-Code:
function fetch_forum_permissions($fid, $gid, $groupperms)
{
    global $groupscache, $forum_cache, $fpermcache, $mybb, $fpermfields;

    $groups = explode(",", $gid);

    if(empty($fpermcache[$fid])) // This forum has no custom or inherited permissions so lets just return the group permissions
    {
        return $groupperms;
    }

    $current_permissions = array();
    $only_view_own_threads = 1;
    $erik_canview = 1; //Hack von Erik

    foreach($groups as $gid)
    {
        if($groupscache[$gid])
        {
            $level_permissions = $fpermcache[$fid][$gid];
                    
            // If our permissions arn't inherited we need to figure them out
            if(empty($level_permissions))
            {
                $parents = explode(',', $forum_cache[$fid]['parentlist']);
                rsort($parents);
                
                if(!empty($parents))
                {
                    foreach($parents as $parent_id)
                    {
                        if(!empty($fpermcache[$parent_id][$gid]))
                        {
                            $level_permissions = $fpermcache[$parent_id][$gid];
                            break;
                        }
                    }

                    // If we STILL don't have forum permissions we use the usergroup itself
                    if(empty($level_permissions))
                    {
                        $level_permissions = $groupscache[$gid];
                    }
                }
            }
            
            foreach($level_permissions as $permission => $access)
            {
                
                if($access >= $current_permissions[$permission] || ($access == "yes" && $current_permissions[$permission] == "no") || !$current_permissions[$permission])
                {
                    $current_permissions[$permission] = $access;
                }

            }
            
            if($level_permissions["canview"] && !$level_permissions["canonlyviewownthreads"])
            {
                $only_view_own_threads = 0;
            }
            
            if($level_permissions["canview"]==0)
            {
                $erik_canview = 0;  //Hack von Erik
            }
        
        }
    }

    // Figure out if we can view more than our own threads
    if($only_view_own_threads == 0)
    {
        $current_permissions["canonlyviewownthreads"] = 0;
    }

    if(count($current_permissions) == 0)
    {
        $current_permissions = $groupperms;
    }
    
    if($erik_canview == 0 && !in_array(4, $groups)) //admin has view rights to all
    {
        $current_permissions["canview"] = 0;  //Hack von Erik
    }

    return $current_permissions;
}