Rev Author Line No. Line
130 kaklik 1 <?php
2 /***************************************************************************
3 * prune.php
4 * -------------------
5 * begin : Thursday, June 14, 2001
6 * copyright : (C) 2001 The phpBB Group
7 * email : support@phpbb.com
8 *
9 * $Id: prune.php,v 1.19.2.7 2006/01/29 17:31:16 grahamje Exp $
10 *
11 *
12 ***************************************************************************/
13  
14 /***************************************************************************
15 *
16 * This program is free software; you can redistribute it and/or modify
17 * it under the terms of the GNU General Public License as published by
18 * the Free Software Foundation; either version 2 of the License, or
19 * (at your option) any later version.
20 *
21 ***************************************************************************/
22  
23 if ( !defined('IN_PHPBB') )
24 {
25 die("Hacking attempt");
26 }
27  
28 require($phpbb_root_path . 'includes/functions_search.'.$phpEx);
29  
30 function prune($forum_id, $prune_date, $prune_all = false)
31 {
32 global $db, $lang;
33  
34 // Before pruning, lets try to clean up the invalid topic entries
35 $sql = 'SELECT topic_id FROM ' . TOPICS_TABLE . '
36 WHERE topic_last_post_id = 0';
37 if ( !($result = $db->sql_query($sql)) )
38 {
39 message_die(GENERAL_ERROR, 'Could not obtain lists of topics to sync', '', __LINE__, __FILE__, $sql);
40 }
41  
42 while( $row = $db->sql_fetchrow($result) )
43 {
44 sync('topic', $row['topic_id']);
45 }
46  
47 $db->sql_freeresult($result);
48  
49 $prune_all = ($prune_all) ? '' : 'AND t.topic_vote = 0 AND t.topic_type <> ' . POST_ANNOUNCE;
50 //
51 // Those without polls and announcements ... unless told otherwise!
52 //
53 $sql = "SELECT t.topic_id
54 FROM " . POSTS_TABLE . " p, " . TOPICS_TABLE . " t
55 WHERE t.forum_id = $forum_id
56 $prune_all
57 AND p.post_id = t.topic_last_post_id";
58 if ( $prune_date != '' )
59 {
60 $sql .= " AND p.post_time < $prune_date";
61 }
62  
63 if ( !($result = $db->sql_query($sql)) )
64 {
65 message_die(GENERAL_ERROR, 'Could not obtain lists of topics to prune', '', __LINE__, __FILE__, $sql);
66 }
67  
68 $sql_topics = '';
69 while( $row = $db->sql_fetchrow($result) )
70 {
71 $sql_topics .= ( ( $sql_topics != '' ) ? ', ' : '' ) . $row['topic_id'];
72 }
73 $db->sql_freeresult($result);
74  
75 if( $sql_topics != '' )
76 {
77 $sql = "SELECT post_id
78 FROM " . POSTS_TABLE . "
79 WHERE forum_id = $forum_id
80 AND topic_id IN ($sql_topics)";
81 if ( !($result = $db->sql_query($sql)) )
82 {
83 message_die(GENERAL_ERROR, 'Could not obtain list of posts to prune', '', __LINE__, __FILE__, $sql);
84 }
85  
86 $sql_post = '';
87 while ( $row = $db->sql_fetchrow($result) )
88 {
89 $sql_post .= ( ( $sql_post != '' ) ? ', ' : '' ) . $row['post_id'];
90 }
91 $db->sql_freeresult($result);
92  
93 if ( $sql_post != '' )
94 {
95 $sql = "DELETE FROM " . TOPICS_WATCH_TABLE . "
96 WHERE topic_id IN ($sql_topics)";
97 if ( !$db->sql_query($sql, BEGIN_TRANSACTION) )
98 {
99 message_die(GENERAL_ERROR, 'Could not delete watched topics during prune', '', __LINE__, __FILE__, $sql);
100 }
101  
102 $sql = "DELETE FROM " . TOPICS_TABLE . "
103 WHERE topic_id IN ($sql_topics)";
104 if ( !$db->sql_query($sql) )
105 {
106 message_die(GENERAL_ERROR, 'Could not delete topics during prune', '', __LINE__, __FILE__, $sql);
107 }
108  
109 $pruned_topics = $db->sql_affectedrows();
110  
111 $sql = "DELETE FROM " . POSTS_TABLE . "
112 WHERE post_id IN ($sql_post)";
113 if ( !$db->sql_query($sql) )
114 {
115 message_die(GENERAL_ERROR, 'Could not delete post_text during prune', '', __LINE__, __FILE__, $sql);
116 }
117  
118 $pruned_posts = $db->sql_affectedrows();
119  
120 $sql = "DELETE FROM " . POSTS_TEXT_TABLE . "
121 WHERE post_id IN ($sql_post)";
122 if ( !$db->sql_query($sql) )
123 {
124 message_die(GENERAL_ERROR, 'Could not delete post during prune', '', __LINE__, __FILE__, $sql);
125 }
126  
127 remove_search_post($sql_post);
128  
129 return array ('topics' => $pruned_topics, 'posts' => $pruned_posts);
130 }
131 }
132  
133 return array('topics' => 0, 'posts' => 0);
134 }
135  
136 //
137 // Function auto_prune(), this function will read the configuration data from
138 // the auto_prune table and call the prune function with the necessary info.
139 //
140 function auto_prune($forum_id = 0)
141 {
142 global $db, $lang;
143  
144 $sql = "SELECT *
145 FROM " . PRUNE_TABLE . "
146 WHERE forum_id = $forum_id";
147 if ( !($result = $db->sql_query($sql)) )
148 {
149 message_die(GENERAL_ERROR, 'Could not read auto_prune table', '', __LINE__, __FILE__, $sql);
150 }
151  
152 if ( $row = $db->sql_fetchrow($result) )
153 {
154 if ( $row['prune_freq'] && $row['prune_days'] )
155 {
156 $prune_date = time() - ( $row['prune_days'] * 86400 );
157 $next_prune = time() + ( $row['prune_freq'] * 86400 );
158  
159 prune($forum_id, $prune_date);
160 sync('forum', $forum_id);
161  
162 $sql = "UPDATE " . FORUMS_TABLE . "
163 SET prune_next = $next_prune
164 WHERE forum_id = $forum_id";
165 if ( !$db->sql_query($sql) )
166 {
167 message_die(GENERAL_ERROR, 'Could not update forum table', '', __LINE__, __FILE__, $sql);
168 }
169 }
170 }
171  
172 return;
173 }
174  
175 ?>