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authorJosh Woody <a_jelly_doughnut@phpbb.com>2010-08-19 10:09:32 -0500
committerJosh Woody <a_jelly_doughnut@phpbb.com>2010-08-19 10:09:32 -0500
commit68744484c839de8529483d588af818e703c31888 (patch)
tree635160c985493b20b0f8f34377697666b7a7131f /phpBB/includes/functions_admin.php
parent25c579c00d25356afead09f13031e69e22f91324 (diff)
parent38fc35a497e375797afdce6bc3cba952b9ed5344 (diff)
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Merge branch 'ticket/bantu/9167' into develop-olympus
* ticket/bantu/9167: [ticket/9167] Detect and remove any dead left over shadow topics on update. [ticket/9167] Remove shadow topics from remaining forums when deleting a forum Conflicts: phpBB/install/database_update.php
Diffstat (limited to 'phpBB/includes/functions_admin.php')
-rw-r--r--phpBB/includes/functions_admin.php82
1 files changed, 47 insertions, 35 deletions
diff --git a/phpBB/includes/functions_admin.php b/phpBB/includes/functions_admin.php
index 89892feb30..3178d35c34 100644
--- a/phpBB/includes/functions_admin.php
+++ b/phpBB/includes/functions_admin.php
@@ -1125,53 +1125,65 @@ function delete_attachments($mode, $ids, $resync = true)
}
/**
-* Remove topic shadows
+* Deletes shadow topics pointing to a specified forum.
+*
+* @param int $forum_id The forum id
+* @param string $sql_more Additional WHERE statement, e.g. t.topic_time < (time() - 1234)
+* @param bool $auto_sync Will call sync() if this is true
+*
+* @return array Array with affected forums
+*
+* @author bantu
*/
-function delete_topic_shadows($max_age, $forum_id = '', $auto_sync = true)
+function delete_topic_shadows($forum_id, $sql_more = '', $auto_sync = true)
{
- $where = (is_array($forum_id)) ? 'AND ' . $db->sql_in_set('t.forum_id', array_map('intval', $forum_id)) : (($forum_id) ? 'AND t.forum_id = ' . (int) $forum_id : '');
+ global $db;
- switch ($db->sql_layer)
+ if (!$forum_id)
{
- case 'mysql4':
- case 'mysqli':
- $sql = 'DELETE t.*
- FROM ' . TOPICS_TABLE . ' t, ' . TOPICS_TABLE . ' t2
- WHERE t.topic_moved_id = t2.topic_id
- AND t.topic_time < ' . (time() - $max_age)
- . $where;
- $db->sql_query($sql);
- break;
+ // Nothing to do.
+ return;
+ }
- default:
- $sql = 'SELECT t.topic_id
- FROM ' . TOPICS_TABLE . ' t, ' . TOPICS_TABLE . ' t2
- WHERE t.topic_moved_id = t2.topic_id
- AND t.topic_time < ' . (time() - $max_age)
- . $where;
- $result = $db->sql_query($sql);
+ // Set of affected forums we have to resync
+ $sync_forum_ids = array();
- $topic_ids = array();
- while ($row = $db->sql_fetchrow($result))
- {
- $topic_ids[] = $row['topic_id'];
- }
- $db->sql_freeresult($result);
+ // Amount of topics we select and delete at once.
+ $batch_size = 500;
- if (sizeof($topic_ids))
- {
- $sql = 'DELETE FROM ' . TOPICS_TABLE . '
- WHERE ' . $db->sql_in_set('topic_id', $topic_ids);
- $db->sql_query($sql);
- }
- break;
+ do
+ {
+ $sql = 'SELECT t2.forum_id, t2.topic_id
+ FROM ' . TOPICS_TABLE . ' t2, ' . TOPICS_TABLE . ' t
+ WHERE t2.topic_moved_id = t.topic_id
+ AND t.forum_id = ' . (int) $forum_id . '
+ ' . (($sql_more) ? 'AND ' . $sql_more : '');
+ $result = $db->sql_query_limit($sql, $batch_size);
+
+ $topic_ids = array();
+ while ($row = $db->sql_fetchrow($result))
+ {
+ $topic_ids[] = (int) $row['topic_id'];
+
+ $sync_forum_ids[(int) $row['forum_id']] = (int) $row['forum_id'];
+ }
+ $db->sql_freeresult($result);
+
+ if (!empty($topic_ids))
+ {
+ $sql = 'DELETE FROM ' . TOPICS_TABLE . '
+ WHERE ' . $db->sql_in_set('topic_id', $topic_ids);
+ $db->sql_query($sql);
+ }
}
+ while (sizeof($topic_ids) == $batch_size);
if ($auto_sync)
{
- $where_type = ($forum_id) ? 'forum_id' : '';
- sync('forum', $where_type, $forum_id, true, true);
+ sync('forum', 'forum_id', $sync_forum_ids, true, true);
}
+
+ return $sync_forum_ids;
}
/**