Gazelle/sections/userhistory/catchup.php

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PHP
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<?
authorize();
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if (($UserSubscriptions = $Cache->get_value('subscriptions_user_'.$LoggedUser['ID'])) === false) {
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$DB->query('SELECT TopicID FROM users_subscriptions WHERE UserID = '.db_string($LoggedUser['ID']));
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if ($UserSubscriptions = $DB->collect(0)) {
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$Cache->cache_value('subscriptions_user_'.$LoggedUser['ID'],$UserSubscriptions,0);
}
}
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if (!empty($UserSubscriptions)) {
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$DB->query("INSERT INTO forums_last_read_topics (UserID, TopicID, PostID)
SELECT '$LoggedUser[ID]', ID, LastPostID FROM
forums_topics
WHERE ID IN (".implode(',',$UserSubscriptions).")
ON DUPLICATE KEY UPDATE PostID=LastPostID");
}
$Cache->delete_value('subscriptions_user_new_'.$LoggedUser['ID']);
header('Location: userhistory.php?action=subscriptions');
?>