Gazelle/sections/schedule/daily/lock_old_threads.php

<?
//------------- Lock old threads ----------------------------------------//

$DB->query("
  SELECT t.ID, t.ForumID
  FROM forums_topics AS t
    JOIN forums AS f ON t.ForumID = f.ID
  WHERE t.IsLocked = '0'
    AND t.IsSticky = '0'
    AND DATEDIFF(CURDATE(), DATE(t.LastPostTime)) / 7 > f.AutoLockWeeks
    AND f.AutoLock = '1'");
$IDs = $DB->collect('ID');
$ForumIDs = $DB->collect('ForumID');

if (count($IDs) > 0) {
  $LockIDs = implode(',', $IDs);
  $DB->query("
    UPDATE forums_topics
    SET IsLocked = '1'
    WHERE ID IN($LockIDs)");
  sleep(2);
  $DB->query("
    DELETE FROM forums_last_read_topics
    WHERE TopicID IN($LockIDs)");

  foreach ($IDs as $ID) {
    $Cache->begin_transaction("thread_$ID".'_info');
    $Cache->update_row(false, array('IsLocked' => '1'));
    $Cache->commit_transaction(3600 * 24 * 30);
    $Cache->expire_value("thread_$ID".'_catalogue_0', 3600 * 24 * 30);
    $Cache->expire_value("thread_$ID".'_info', 3600 * 24 * 30);
    Forums::add_topic_note($ID, 'Locked automatically by schedule', 0);
  }

  $ForumIDs = array_flip(array_flip($ForumIDs));
  foreach ($ForumIDs as $ForumID) {
    $Cache->delete_value("forums_$ForumID");
  }
}
echo "Old threads locked\n";
?>