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Merge branch 'develop-olympus' into develop
* develop-olympus: (22 commits) [ticket/11162] Reformat. [ticket/11162] Rename tricky updates to database helper. [ticket/11162] Use empty($queries). [ticket/11162] Review comments fixed. [ticket/11162] Reformat. [ticket/11162] Newlines to LF. [ticket/11162] Use correct functions. [ticket/11162] Account for notify_status. [ticket/11162] This test really only works for bookmarks. [ticket/11162] The test is not at all trivial. [ticket/11162] Add includes. [ticket/11162] Move to a separate file to avoid blowing out functions.php. [ticket/11162] No whitespace changes in olympus. [ticket/11162] Fix inaccurately copy pasted comment. [ticket/11162] Use phpbb_update_rows_avoiding_duplicates in mcp. [ticket/11162] Clarify that only the two tables actually work. [ticket/11162] Uncomment transactions. [ticket/11162] An implementation that actually works. [ticket/11162] Make count function upper case. [ticket/11162] Rename count variable name to remaining_rows. ...
This commit is contained in:
Andreas Fischer
206
phpBB/includes/functions_database_helper.php
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206
phpBB/includes/functions_database_helper.php
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@@ -0,0 +1,206 @@
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<?php
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/**
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*
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* @package phpBB3
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* @copyright (c) 2012 phpBB Group
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* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
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*
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*/
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/**
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* @ignore
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*/
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if (!defined('IN_PHPBB'))
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{
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exit;
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}
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/**
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* Updates rows in given table from a set of values to a new value.
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* If this results in rows violating uniqueness constraints, the duplicate
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* rows are eliminated.
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*
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* The only supported table is bookmarks.
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*
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* @param dbal $db Database object
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* @param string $table Table on which to perform the update
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* @param string $column Column whose values to change
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* @param array $from_values An array of values that should be changed
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* @param int $to_value The new value
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* @return null
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*/
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function phpbb_update_rows_avoiding_duplicates($db, $table, $column, $from_values, $to_value)
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{
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$sql = "SELECT $column, user_id
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FROM $table
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WHERE " . $db->sql_in_set($column, $from_values);
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$result = $db->sql_query($sql);
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$old_user_ids = array();
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while ($row = $db->sql_fetchrow($result))
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{
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$old_user_ids[$row[$column]][] = (int) $row['user_id'];
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}
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$db->sql_freeresult($result);
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$sql = "SELECT $column, user_id
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FROM $table
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WHERE $column = " . (int) $to_value;
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$result = $db->sql_query($sql);
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$new_user_ids = array();
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while ($row = $db->sql_fetchrow($result))
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{
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$new_user_ids[$row[$column]][] = (int) $row['user_id'];
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}
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$db->sql_freeresult($result);
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$queries = array();
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foreach ($from_values as $from_value)
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{
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if (!isset($old_user_ids[$from_value]))
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{
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continue;
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}
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if (empty($new_user_ids))
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{
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$sql = "UPDATE $table
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SET $column = " . (int) $to_value . "
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WHERE $column = '" . $db->sql_escape($from_value) . "'";
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$queries[] = $sql;
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}
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else
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{
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$different_user_ids = array_diff($old_user_ids[$from_value], $new_user_ids[$to_value]);
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if (!empty($different_user_ids))
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{
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$sql = "UPDATE $table
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SET $column = " . (int) $to_value . "
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WHERE $column = '" . $db->sql_escape($from_value) . "'
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AND " . $db->sql_in_set('user_id', $different_user_ids);
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$queries[] = $sql;
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}
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}
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}
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if (!empty($queries))
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{
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$db->sql_transaction('begin');
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foreach ($queries as $sql)
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{
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$db->sql_query($sql);
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}
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$sql = "DELETE FROM $table
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WHERE " . $db->sql_in_set($column, $from_values);
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$db->sql_query($sql);
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$db->sql_transaction('commit');
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}
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}
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/**
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* Updates rows in given table from a set of values to a new value.
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* If this results in rows violating uniqueness constraints, the duplicate
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* rows are merged respecting notify_status (0 takes precedence over 1).
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*
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* The only supported table is topics_watch.
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*
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* @param dbal $db Database object
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* @param string $table Table on which to perform the update
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* @param string $column Column whose values to change
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* @param array $from_values An array of values that should be changed
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* @param int $to_value The new value
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* @return null
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*/
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function phpbb_update_rows_avoiding_duplicates_notify_status($db, $table, $column, $from_values, $to_value)
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{
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$sql = "SELECT $column, user_id, notify_status
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FROM $table
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WHERE " . $db->sql_in_set($column, $from_values);
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$result = $db->sql_query($sql);
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$old_user_ids = array();
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while ($row = $db->sql_fetchrow($result))
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{
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$old_user_ids[(int) $row['notify_status']][$row[$column]][] = (int) $row['user_id'];
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}
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$db->sql_freeresult($result);
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$sql = "SELECT $column, user_id
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FROM $table
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WHERE $column = " . (int) $to_value;
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$result = $db->sql_query($sql);
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$new_user_ids = array();
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while ($row = $db->sql_fetchrow($result))
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{
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$new_user_ids[$row[$column]][] = (int) $row['user_id'];
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}
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$db->sql_freeresult($result);
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$queries = array();
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$extra_updates = array(
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0 => 'notify_status = 0',
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1 => '',
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);
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foreach ($from_values as $from_value)
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{
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foreach ($extra_updates as $notify_status => $extra_update)
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{
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if (!isset($old_user_ids[$notify_status][$from_value]))
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{
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continue;
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}
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if (empty($new_user_ids))
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{
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$sql = "UPDATE $table
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SET $column = " . (int) $to_value . "
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WHERE $column = '" . $db->sql_escape($from_value) . "'";
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$queries[] = $sql;
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}
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else
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{
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$different_user_ids = array_diff($old_user_ids[$notify_status][$from_value], $new_user_ids[$to_value]);
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if (!empty($different_user_ids))
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{
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$sql = "UPDATE $table
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SET $column = " . (int) $to_value . "
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WHERE $column = '" . $db->sql_escape($from_value) . "'
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AND " . $db->sql_in_set('user_id', $different_user_ids);
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$queries[] = $sql;
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}
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if ($extra_update)
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{
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$same_user_ids = array_diff($old_user_ids[$notify_status][$from_value], $different_user_ids);
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if (!empty($same_user_ids))
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{
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$sql = "UPDATE $table
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SET $extra_update
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WHERE $column = '" . (int) $to_value . "'
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AND " . $db->sql_in_set('user_id', $same_user_ids);
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$queries[] = $sql;
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}
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}
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}
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}
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}
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if (!empty($queries))
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{
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$db->sql_transaction('begin');
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foreach ($queries as $sql)
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{
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$db->sql_query($sql);
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}
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$sql = "DELETE FROM $table
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WHERE " . $db->sql_in_set($column, $from_values);
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$db->sql_query($sql);
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$db->sql_transaction('commit');
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}
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}
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@@ -430,13 +430,12 @@ function merge_topics($forum_id, $topic_ids, $to_topic_id)
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// Message and return links
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$success_msg = 'POSTS_MERGED_SUCCESS';
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// If the topic no longer exist, we will update the topic watch table.
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// To not let it error out on users watching both topics, we just return on an error...
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$db->sql_return_on_error(true);
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$db->sql_query('UPDATE ' . TOPICS_WATCH_TABLE . ' SET topic_id = ' . (int) $to_topic_id . ' WHERE ' . $db->sql_in_set('topic_id', $topic_ids));
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$db->sql_return_on_error(false);
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$db->sql_query('DELETE FROM ' . TOPICS_WATCH_TABLE . ' WHERE ' . $db->sql_in_set('topic_id', $topic_ids));
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// Update the topic watch table.
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if (!function_exists('phpbb_update_rows_avoiding_duplicates_notify_status'))
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{
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include($phpbb_root_path . 'includes/functions_database_helper.' . $phpEx);
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}
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phpbb_update_rows_avoiding_duplicates_notify_status($db, TOPICS_WATCH_TABLE, 'topic_id', $topic_ids, $to_topic_id);
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// Link to the new topic
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$return_link .= (($return_link) ? '<br /><br />' : '') . sprintf($user->lang['RETURN_NEW_TOPIC'], '<a href="' . append_sid("{$phpbb_root_path}viewtopic.$phpEx", 'f=' . $to_forum_id . '&t=' . $to_topic_id) . '">', '</a>');
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@@ -624,12 +624,11 @@ function merge_posts($topic_id, $to_topic_id)
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else
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{
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// If the topic no longer exist, we will update the topic watch table.
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// To not let it error out on users watching both topics, we just return on an error...
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$db->sql_return_on_error(true);
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$db->sql_query('UPDATE ' . TOPICS_WATCH_TABLE . ' SET topic_id = ' . (int) $to_topic_id . ' WHERE topic_id = ' . (int) $topic_id);
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$db->sql_return_on_error(false);
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$db->sql_query('DELETE FROM ' . TOPICS_WATCH_TABLE . ' WHERE topic_id = ' . (int) $topic_id);
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if (!function_exists('phpbb_update_rows_avoiding_duplicates_notify_status'))
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{
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include($phpbb_root_path . 'includes/functions_database_helper.' . $phpEx);
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}
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phpbb_update_rows_avoiding_duplicates_notify_status($db, TOPICS_WATCH_TABLE, 'topic_id', $topic_ids, $to_topic_id);
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}
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// Link to the new topic
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