File Sources/Subs-Recent.php

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<?php

/**
 * This file contains a couple of functions for the latests posts on forum.
 *
 * Simple Machines Forum (SMF)
 *
 * @package SMF
 * @author Simple Machines https://www.simplemachines.org
 * @copyright 2020 Simple Machines and individual contributors
 * @license https://www.simplemachines.org/about/smf/license.php BSD
 *
 * @version 2.1 RC2
 */

if (!defined('SMF'))
    die('No direct access...');

/**
 * Get the latest posts of a forum.
 *
 * @param array $latestPostOptions
 * @return array
 */
function getLastPosts($latestPostOptions)
{
    global $scripturl, $modSettings, $smcFunc, $sourcedir;

    // Find all the posts.  Newer ones will have higher IDs.  (assuming the last 20 * number are accessible...)
    // @todo SLOW This query is now slow, NEEDS to be fixed.  Maybe break into two?
    $request = $smcFunc['db_query']('substring', '
        SELECT
            m.poster_time, m.subject, m.id_topic, m.id_member, m.id_msg,
            COALESCE(mem.real_name, m.poster_name) AS poster_name, t.id_board, b.name AS board_name,
            SUBSTRING(m.body, 1, 385) AS body, m.smileys_enabled
        FROM {db_prefix}messages AS m
            INNER JOIN {db_prefix}topics AS t ON (t.id_topic = m.id_topic)
            INNER JOIN {db_prefix}boards AS b ON (b.id_board = t.id_board)
            LEFT JOIN {db_prefix}members AS mem ON (mem.id_member = m.id_member)
        WHERE m.id_msg >= {int:likely_max_msg}' .
            (!empty($modSettings['recycle_enable']) && $modSettings['recycle_board'] > 0 ? '
            AND b.id_board != {int:recycle_board}' : '') . '
            AND {query_wanna_see_board}' . ($modSettings['postmod_active'] ? '
            AND t.approved = {int:is_approved}
            AND m.approved = {int:is_approved}' : '') . '
        ORDER BY m.id_msg DESC
        LIMIT ' . $latestPostOptions['number_posts'],
        array(
            'likely_max_msg' => max(0, $modSettings['maxMsgID'] - 50 * $latestPostOptions['number_posts']),
            'recycle_board' => $modSettings['recycle_board'],
            'is_approved' => 1,
        )
    );
    $rows = $smcFunc['db_fetch_all']($request);

    // If the ability to embed attachments in posts is enabled, load the attachments now for efficiency
    if (!empty($modSettings['attachmentEnable']) && (empty($modSettings['disabledBBC']) || !in_array('attach', explode(',', strtolower($modSettings['disabledBBC'])))))
    {
        $msgIDs = array();
        foreach ($rows as $row)
            $msgIDs[] = $row['id_msg'];

        require_once($sourcedir . '/Subs-Attachments.php');
        prepareAttachsByMsg($msgIDs);
    }

    $posts = array();
    foreach ($rows as $row)
    {
        // Censor the subject and post for the preview ;).
        censorText($row['subject']);
        censorText($row['body']);

        $row['body'] = strip_tags(strtr(parse_bbc($row['body'], $row['smileys_enabled'], $row['id_msg']), array('<br>' => '&#10;')));
        if ($smcFunc['strlen']($row['body']) > 128)
            $row['body'] = $smcFunc['substr']($row['body'], 0, 128) . '...';

        // Build the array.
        $posts[] = array(
            'board' => array(
                'id' => $row['id_board'],
                'name' => $row['board_name'],
                'href' => $scripturl . '?board=' . $row['id_board'] . '.0',
                'link' => '<a href="' . $scripturl . '?board=' . $row['id_board'] . '.0">' . $row['board_name'] . '</a>'
            ),
            'topic' => $row['id_topic'],
            'poster' => array(
                'id' => $row['id_member'],
                'name' => $row['poster_name'],
                'href' => empty($row['id_member']) ? '' : $scripturl . '?action=profile;u=' . $row['id_member'],
                'link' => empty($row['id_member']) ? $row['poster_name'] : '<a href="' . $scripturl . '?action=profile;u=' . $row['id_member'] . '">' . $row['poster_name'] . '</a>'
            ),
            'subject' => $row['subject'],
            'short_subject' => shorten_subject($row['subject'], 24),
            'preview' => $row['body'],
            'time' => timeformat($row['poster_time']),
            'timestamp' => forum_time(true, $row['poster_time']),
            'raw_timestamp' => $row['poster_time'],
            'href' => $scripturl . '?topic=' . $row['id_topic'] . '.msg' . $row['id_msg'] . ';topicseen#msg' . $row['id_msg'],
            'link' => '<a href="' . $scripturl . '?topic=' . $row['id_topic'] . '.msg' . $row['id_msg'] . ';topicseen#msg' . $row['id_msg'] . '" rel="nofollow">' . $row['subject'] . '</a>'
        );
    }
    $smcFunc['db_free_result']($request);

    return $posts;
}

/**
 * Callback-function for the cache for getLastPosts().
 *
 * @param array $latestPostOptions
 */
function cache_getLastPosts($latestPostOptions)
{
    return array(
        'data' => getLastPosts($latestPostOptions),
        'expires' => time() + 60,
        'post_retri_eval' => '
            foreach ($cache_block[\'data\'] as $k => $post)
            {
                $cache_block[\'data\'][$k][\'time\'] = timeformat($post[\'raw_timestamp\']);
                $cache_block[\'data\'][$k][\'timestamp\'] = forum_time(true, $post[\'raw_timestamp\']);
            }',
    );
}

?>

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