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<?php
/***************************************************************************
* prune.php
* -------------------
* begin : Thursday, June 14, 2001
* copyright : (C) 2001 The phpBB Group
* email : support@phpbb.com
*
* $Id: prune.php,v 1.19.2.3 2002/11/29 06:58:37 dougk_ff7 Exp $
*
*
***************************************************************************/
/***************************************************************************
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
***************************************************************************/
if ( !defined('IN_PHPBB') )
{
die("Hacking attempt");
}
require($phpbb_root_path . 'includes/functions_search.'.$phpEx);
function prune($forum_id, $prune_date, $prune_all = false)
{
global $db, $lang;
$prune_all = ($prune_all) ? '' : 'AND t.topic_vote = 0 AND t.topic_type <> ' . POST_ANNOUNCE;
//
// Those without polls and announcements ... unless told otherwise!
//
$sql = "SELECT t.topic_id
FROM " . POSTS_TABLE . " p, " . TOPICS_TABLE . " t
WHERE t.forum_id = $forum_id
$prune_all
AND ( p.post_id = t.topic_last_post_id
OR t.topic_last_post_id = 0 )";
if ( $prune_date != '' )
{
$sql .= " AND p.post_time < $prune_date";
}
if ( !($result = $db->sql_query($sql)) )
{
message_die(GENERAL_ERROR, 'Could not obtain lists of topics to prune', '', __LINE__, __FILE__, $sql);
}
$sql_topics = '';
while( $row = $db->sql_fetchrow($result) )
{
$sql_topics .= ( ( $sql_topics != '' ) ? ', ' : '' ) . $row['topic_id'];
}
if( $sql_topics != '' )
{
$sql = "SELECT post_id
FROM " . POSTS_TABLE . "
WHERE forum_id = $forum_id
AND topic_id IN ($sql_topics)";
if ( !($result = $db->sql_query($sql)) )
{
message_die(GENERAL_ERROR, 'Could not obtain list of posts to prune', '', __LINE__, __FILE__, $sql);
}
$sql_post = '';
while ( $row = $db->sql_fetchrow($result) )
{
$sql_post .= ( ( $sql_post != '' ) ? ', ' : '' ) . $row['post_id'];
}
if ( $sql_post != '' )
{
$sql = "DELETE FROM " . TOPICS_WATCH_TABLE . "
WHERE topic_id IN ($sql_topics)";
if ( !$db->sql_query($sql, BEGIN_TRANSACTION) )
{
message_die(GENERAL_ERROR, 'Could not delete watched topics during prune', '', __LINE__, __FILE__, $sql);
}
$sql = "DELETE FROM " . TOPICS_TABLE . "
WHERE topic_id IN ($sql_topics)";
if ( !$db->sql_query($sql) )
{
message_die(GENERAL_ERROR, 'Could not delete topics during prune', '', __LINE__, __FILE__, $sql);
}
$pruned_topics = $db->sql_affectedrows();
$sql = "DELETE FROM " . POSTS_TABLE . "
WHERE post_id IN ($sql_post)";
if ( !$db->sql_query($sql) )
{
message_die(GENERAL_ERROR, 'Could not delete post_text during prune', '', __LINE__, __FILE__, $sql);
}
$pruned_posts = $db->sql_affectedrows();
$sql = "DELETE FROM " . POSTS_TEXT_TABLE . "
WHERE post_id IN ($sql_post)";
if ( !$db->sql_query($sql) )
{
message_die(GENERAL_ERROR, 'Could not delete post during prune', '', __LINE__, __FILE__, $sql);
}
$sql = "DELETE FROM " . SEARCH_MATCH_TABLE . "
WHERE post_id IN ($sql_post)";
if ( !$db->sql_query($sql) )
{
message_die(GENERAL_ERROR, 'Could not delete search matches', '', __LINE__, __FILE__, $sql);
}
remove_search_post($sql_post);
return array ('topics' => $pruned_topics, 'posts' => $pruned_posts);
}
}
return array('topics' => 0, 'posts' => 0);
}
//
// Function auto_prune(), this function will read the configuration data from
// the auto_prune table and call the prune function with the necessary info.
//
function auto_prune($forum_id = 0)
{
global $db, $lang;
$sql = "SELECT *
FROM " . PRUNE_TABLE . "
WHERE forum_id = $forum_id";
if ( !($result = $db->sql_query($sql)) )
{
message_die(GENERAL_ERROR, 'Could not read auto_prune table', '', __LINE__, __FILE__, $sql);
}
if ( $row = $db->sql_fetchrow($result) )
{
if ( $row['prune_freq'] && $row['prune_days'] )
{
$prune_date = time() - ( $row['prune_days'] * 86400 );
$next_prune = time() + ( $row['prune_freq'] * 86400 );
prune($forum_id, $prune_date);
sync('forum', $forum_id);
$sql = "UPDATE " . FORUMS_TABLE . "
SET prune_next = $next_prune
WHERE forum_id = $forum_id";
if ( !$db->sql_query($sql) )
{
message_die(GENERAL_ERROR, 'Could not update forum table', '', __LINE__, __FILE__, $sql);
}
}
}
return;
}
?>
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