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112 lines
4.6 KiB
PHP
112 lines
4.6 KiB
PHP
<?php
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/***************************************************************************
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* prune.php
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* -------------------
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* begin : Thursday, June 14, 2001
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* copyright : (C) 2001 The phpBB Group
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* email : support@phpbb.com
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*
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* $Id$
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*
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*
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***************************************************************************/
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/**************************************************************************\
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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\**************************************************************************/
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// I am currently seperating the prune functions from functions.php due to the
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// fact that they are only really needed in one or two places so I don't see
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// the need to include them everywhere. If someone else thinks this is a bad
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// idea I am not opposed to moving them elsewhere ;) Jonathan "The_Systech"
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/***************************************************************************\
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*
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* function prune. This function takes as it's arguments the forum id to
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* perform the prune on, and the date before which topics should be pruned.
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*
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* This function returns the number of topics pruned upon success.
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*
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\***************************************************************************/
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function prune($forum_id, $prune_date)
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{
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global $db, $lang;
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$sql = 'SELECT t.topic_id
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FROM ' . TOPICS_TABLE . ' t, ' . POSTS_TABLE . " p
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WHERE t.forum_id = $forum_id
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AND p.post_id = t.topic_last_post_id
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AND t.topic_type != " . POST_ANNOUNCE . "
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AND p.post_time < $prune_date";
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if(!$result = $db->sql_query($sql))
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{
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error_die(SQL_QUERY, "Couldn't obtain list of topics to prune.", __LINE__, __FILE__);
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} // End if(!$result...
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$pruned_topics = $db->sql_numrows($result);
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if($pruned_topics > 0)
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{
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$prune_posts_sql = 'DELETE FROM ' . POSTS_TABLE . "
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WHERE forum_id = $forum_id AND (";
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$prune_topic_sql = 'DELETE FROM ' . TOPICS_TABLE . "
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WHERE forum_id = $forum_id AND (";
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// ADD a list ORing all Topic ID's to prune....
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while($row = $db->sql_fetchrow($result))
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{
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$prune_posts_sql .= 'topic_id = ' . $row['topic_id'] . ' OR ';
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$prune_topic_sql .= 'topic_id = ' . $row['topic_id'] . ' OR ';
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} // End while loop
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// Remove the final OR...
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$prune_posts_sql = substr($prune_posts_sql, 0, (strlen($prune_posts_sql) - 4));
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$prune_topic_sql = substr($prune_topic_sql, 0, strlen($prune_topic_sql) - 4);
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$prune_posts_sql .= ')';
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$prune_topic_sql .= ')';
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if(!$result = $db->sql_query($prune_posts_sql))
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{
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error_die(SQL_QUERY, "While Pruning: Couldn't remove affected posts.<br>$prune_posts_sql", __LINE__, __FILE__);
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} // end if(!$result...
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if(!$result = $db->sql_query($prune_topic_sql))
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{
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error_die(SQL_QUERY, "While Pruning: Couldn't remove affected topics.", __LINE__, __FILE__);
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} // end if(!$result...
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} // End if $prune_topics
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return $pruned_topics;
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} // End function prune.
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/***************************************************************************\
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*
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* Function auto_prune(), this function will read the configuration data from
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* the auto_prune table and call the prune function with the necessary info.
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*
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****************************************************************************/
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function auto_prune($forum_id = 0)
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{
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global $db, $lang;
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$one_day = 60 * 60 * 24;
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$sql = 'SELECT *
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FROM ' . PRUNE_TABLE . "
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WHERE forum_id = '$forum_id'";
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if(!$result = $db->sql_query($sql))
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{
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error_die(SQL_QUERY, "Auto-Prune: Couldn't read auto_prune table.", __LINE__, __FILE__);
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} // End if(!$result...
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while($row = $db->sql_fetchrow($result))
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{
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$forum_id = $row['forum_id'];
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$prune_date = time() - ($row['prune_days'] * $one_day);
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$pruned = prune($forum_id, $prune_date);
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$next_prune = time() + ($row['prune_freq'] * $one_day);
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$sql = 'UPDATE ' . FORUMS_TABLE . "
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SET prune_next = '$next_prune'
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WHERE forum_id = '$forum_id'";
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if(!$db->sql_query($sql))
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{
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error_die(SQL_QUERY, "Auto-Prune: Couldn't update forum table.", __LINE__, __FILE__);
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} // End if(!$db->sql..
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} // End While Loop.
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} // End auto_prune function.
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