ops-Gazelle/app/Contest/AbstractContest.php

<?php

namespace Gazelle\Contest;

trait TorrentLeaderboard {
    public function leaderboard(int $limit, int $offset): array {
        $key = sprintf(\Gazelle\Contest::CONTEST_LEADERBOARD_CACHE_KEY, $this->id, (int)($offset/CONTEST_ENTRIES_PER_PAGE));
        if (($leaderboard = $this->cache->get_value($key)) === false) {
            $this->db->prepared_query("
                SELECT
                    l.user_id,
                    um.Username as username,
                    l.entry_count,
                    l.last_entry_id,
                    t.Time as last_upload,
                    t.GroupID as group_id
                FROM contest_leaderboard l
                INNER JOIN torrents t ON (t.ID = l.last_entry_id)
                INNER JOIN users_main um ON (um.ID = l.user_id)
                WHERE l.contest_id = ?
                ORDER BY l.entry_count DESC, t.Time ASC, l.user_id ASC
                LIMIT ? OFFSET ?
                ", $this->id, $limit, $offset
            );
            $torMan = new \Gazelle\Manager\Torrent;
            $labelMan = new \Gazelle\Manager\TorrentLabel;
            $labelMan->showMedia(true)->showEdition(true)->showFlags(false);

            $leaderboard = $this->db->to_array(false, MYSQLI_ASSOC);
            $leaderboardCount = count($leaderboard);
            for ($i = 0; $i < $leaderboardCount; $i++) {
                $torrent = $torMan->findById($leaderboard[$i]['last_entry_id']);
                $group = $torrent->group();
                $leaderboard[$i]['last_entry_link'] = sprintf(
                    '%s - <a href="torrents.php?id=%d&amp;torrentid=%d">%s</a> - %s',
                    $group->artistHtml(),
                    $leaderboard[$i]['group_id'],
                    $leaderboard[$i]['last_entry_id'],
                    $group->name(),
                    $labelMan->load($torrent->info())->label()
                );
            }
            $this->cache->cache_value($key, $leaderboard, 3600);
        }
        return $leaderboard;
    }
}

abstract class AbstractContest extends \Gazelle\Base {
    protected $id;
    protected $begin;
    protected $end;

    public function __construct(int $id, string $begin, string $end) {
        parent::__construct();
        $this->id    = $id;
        $this->begin = $begin;
        $this->end   = $end;
    }

    abstract public function ranker(): array;
    abstract public function participationStats(): array;
    abstract public function userPayout(float $enabledUserBonus, float $contestBonus, float $perEntryBonus): array;
}