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Merge remote-tracking branch 'p/ticket/11162' into develop-olympus

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* p/ticket/11162: (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 2012-12-14 02:55:07 +01:00
commit f4df152b4b
7 changed files with 516 additions and 13 deletions
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206
phpBB/includes/functions_database_helper.php Normal file
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@ -0,0 +1,206 @@
<?php
/**
*
* @package phpBB3
* @copyright (c) 2012 phpBB Group
* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
*
*/
/**
* @ignore
*/
if (!defined('IN_PHPBB'))
{
exit;
}
/**
* Updates rows in given table from a set of values to a new value.
* If this results in rows violating uniqueness constraints, the duplicate
* rows are eliminated.
*
* The only supported table is bookmarks.
*
* @param dbal $db Database object
* @param string $table Table on which to perform the update
* @param string $column Column whose values to change
* @param array $from_values An array of values that should be changed
* @param int $to_value The new value
* @return null
*/
function phpbb_update_rows_avoiding_duplicates($db, $table, $column, $from_values, $to_value)
{
$sql = "SELECT $column, user_id
FROM $table
WHERE " . $db->sql_in_set($column, $from_values);
$result = $db->sql_query($sql);
$old_user_ids = array();
while ($row = $db->sql_fetchrow($result))
{
$old_user_ids[$row[$column]][] = (int) $row['user_id'];
}
$db->sql_freeresult($result);
$sql = "SELECT $column, user_id
FROM $table
WHERE $column = " . (int) $to_value;
$result = $db->sql_query($sql);
$new_user_ids = array();
while ($row = $db->sql_fetchrow($result))
{
$new_user_ids[$row[$column]][] = (int) $row['user_id'];
}
$db->sql_freeresult($result);
$queries = array();
foreach ($from_values as $from_value)
{
if (!isset($old_user_ids[$from_value]))
{
continue;
}
if (empty($new_user_ids))
{
$sql = "UPDATE $table
SET $column = " . (int) $to_value . "
WHERE $column = '" . $db->sql_escape($from_value) . "'";
$queries[] = $sql;
}
else
{
$different_user_ids = array_diff($old_user_ids[$from_value], $new_user_ids[$to_value]);
if (!empty($different_user_ids))
{
$sql = "UPDATE $table
SET $column = " . (int) $to_value . "
WHERE $column = '" . $db->sql_escape($from_value) . "'
AND " . $db->sql_in_set('user_id', $different_user_ids);
$queries[] = $sql;
}
}
}
if (!empty($queries))
{
$db->sql_transaction('begin');
foreach ($queries as $sql)
{
$db->sql_query($sql);
}
$sql = "DELETE FROM $table
WHERE " . $db->sql_in_set($column, $from_values);
$db->sql_query($sql);
$db->sql_transaction('commit');
}
}
/**
* Updates rows in given table from a set of values to a new value.
* If this results in rows violating uniqueness constraints, the duplicate
* rows are merged respecting notify_status (0 takes precedence over 1).
*
* The only supported table is topics_watch.
*
* @param dbal $db Database object
* @param string $table Table on which to perform the update
* @param string $column Column whose values to change
* @param array $from_values An array of values that should be changed
* @param int $to_value The new value
* @return null
*/
function phpbb_update_rows_avoiding_duplicates_notify_status($db, $table, $column, $from_values, $to_value)
{
$sql = "SELECT $column, user_id, notify_status
FROM $table
WHERE " . $db->sql_in_set($column, $from_values);
$result = $db->sql_query($sql);
$old_user_ids = array();
while ($row = $db->sql_fetchrow($result))
{
$old_user_ids[(int) $row['notify_status']][$row[$column]][] = (int) $row['user_id'];
}
$db->sql_freeresult($result);
$sql = "SELECT $column, user_id
FROM $table
WHERE $column = " . (int) $to_value;
$result = $db->sql_query($sql);
$new_user_ids = array();
while ($row = $db->sql_fetchrow($result))
{
$new_user_ids[$row[$column]][] = (int) $row['user_id'];
}
$db->sql_freeresult($result);
$queries = array();
$extra_updates = array(
0 => 'notify_status = 0',
1 => '',
);
foreach ($from_values as $from_value)
{
foreach ($extra_updates as $notify_status => $extra_update)
{
if (!isset($old_user_ids[$notify_status][$from_value]))
{
continue;
}
if (empty($new_user_ids))
{
$sql = "UPDATE $table
SET $column = " . (int) $to_value . "
WHERE $column = '" . $db->sql_escape($from_value) . "'";
$queries[] = $sql;
}
else
{
$different_user_ids = array_diff($old_user_ids[$notify_status][$from_value], $new_user_ids[$to_value]);
if (!empty($different_user_ids))
{
$sql = "UPDATE $table
SET $column = " . (int) $to_value . "
WHERE $column = '" . $db->sql_escape($from_value) . "'
AND " . $db->sql_in_set('user_id', $different_user_ids);
$queries[] = $sql;
}
if ($extra_update)
{
$same_user_ids = array_diff($old_user_ids[$notify_status][$from_value], $different_user_ids);
if (!empty($same_user_ids))
{
$sql = "UPDATE $table
SET $extra_update
WHERE $column = '" . (int) $to_value . "'
AND " . $db->sql_in_set('user_id', $same_user_ids);
$queries[] = $sql;
}
}
}
}
}
if (!empty($queries))
{
$db->sql_transaction('begin');
foreach ($queries as $sql)
{
$db->sql_query($sql);
}
$sql = "DELETE FROM $table
WHERE " . $db->sql_in_set($column, $from_values);
$db->sql_query($sql);
$db->sql_transaction('commit');
}
}

13
phpBB/includes/mcp/mcp_forum.php
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@ -414,13 +414,12 @@ function merge_topics($forum_id, $topic_ids, $to_topic_id)
// Message and return links
$success_msg = 'POSTS_MERGED_SUCCESS';
// If the topic no longer exist, we will update the topic watch table.
// To not let it error out on users watching both topics, we just return on an error...
$db->sql_return_on_error(true);
$db->sql_query('UPDATE ' . TOPICS_WATCH_TABLE . ' SET topic_id = ' . (int) $to_topic_id . ' WHERE ' . $db->sql_in_set('topic_id', $topic_ids));
$db->sql_return_on_error(false);
$db->sql_query('DELETE FROM ' . TOPICS_WATCH_TABLE . ' WHERE ' . $db->sql_in_set('topic_id', $topic_ids));
// Update the topic watch table.
if (!function_exists('phpbb_update_rows_avoiding_duplicates_notify_status'))
{
include($phpbb_root_path . 'includes/functions_database_helper.' . $phpEx);
}
phpbb_update_rows_avoiding_duplicates_notify_status($db, TOPICS_WATCH_TABLE, 'topic_id', $topic_ids, $to_topic_id);
// Link to the new topic
$return_link .= (($return_link) ? '<br /><br />' : '') . sprintf($user->lang['RETURN_NEW_TOPIC'], '<a href="' . append_sid("{$phpbb_root_path}viewtopic.$phpEx", 'f=' . $to_forum_id . '&amp;t=' . $to_topic_id) . '">', '</a>');

11
phpBB/includes/mcp/mcp_topic.php
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@ -620,12 +620,11 @@ function merge_posts($topic_id, $to_topic_id)
else
{
// If the topic no longer exist, we will update the topic watch table.
// To not let it error out on users watching both topics, we just return on an error...
$db->sql_return_on_error(true);
$db->sql_query('UPDATE ' . TOPICS_WATCH_TABLE . ' SET topic_id = ' . (int) $to_topic_id . ' WHERE topic_id = ' . (int) $topic_id);
$db->sql_return_on_error(false);
$db->sql_query('DELETE FROM ' . TOPICS_WATCH_TABLE . ' WHERE topic_id = ' . (int) $topic_id);
if (!function_exists('phpbb_update_rows_avoiding_duplicates_notify_status'))
{
include($phpbb_root_path . 'includes/functions_database_helper.' . $phpEx);
}
phpbb_update_rows_avoiding_duplicates_notify_status($db, TOPICS_WATCH_TABLE, 'topic_id', $topic_ids, $to_topic_id);
}
// Link to the new topic

47
tests/functions_database_helper/fixtures/bookmarks_duplicates.xml Normal file
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@ -0,0 +1,47 @@
<?xml version="1.0" encoding="UTF-8" ?>
<dataset>
<table name="phpbb_bookmarks">
<column>user_id</column>
<column>topic_id</column>
<!-- one entry for this topic -->
<row>
<value>1</value>
<value>1</value>
</row>
<!-- non-conflicting entries -->
<row>
<value>2</value>
<value>2</value>
</row>
<row>
<value>3</value>
<value>3</value>
</row>
<!-- conflicting entries -->
<row>
<value>1</value>
<value>4</value>
</row>
<row>
<value>1</value>
<value>5</value>
</row>
<!-- conflicting and non-conflicting entries -->
<row>
<value>1</value>
<value>6</value>
</row>
<row>
<value>1</value>
<value>7</value>
</row>
<row>
<value>2</value>
<value>6</value>
</row>
</table>
</dataset>

80
tests/functions_database_helper/fixtures/topics_watch_duplicates.xml Normal file
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@ -0,0 +1,80 @@
<?xml version="1.0" encoding="UTF-8" ?>
<dataset>
<table name="phpbb_topics_watch">
<column>user_id</column>
<column>topic_id</column>
<column>notify_status</column>
<!-- one entry for this topic -->
<row>
<value>1</value>
<value>1</value>
<value>1</value>
</row>
<!-- non-conflicting entries -->
<row>
<value>1</value>
<value>2</value>
<value>1</value>
</row>
<row>
<value>2</value>
<value>3</value>
<value>0</value>
</row>
<!-- conflicting entries, same notify status -->
<row>
<value>1</value>
<value>4</value>
<value>1</value>
</row>
<row>
<value>1</value>
<value>5</value>
<value>1</value>
</row>
<!-- conflicting entries, notify status 0 into 1 -->
<row>
<value>1</value>
<value>6</value>
<value>0</value>
</row>
<row>
<value>1</value>
<value>7</value>
<value>1</value>
</row>
<!-- conflicting entries, notify status 1 into 0 -->
<row>
<value>1</value>
<value>8</value>
<value>1</value>
</row>
<row>
<value>1</value>
<value>9</value>
<value>0</value>
</row>
<!-- conflicting and non-conflicting entries -->
<row>
<value>1</value>
<value>10</value>
<value>0</value>
</row>
<row>
<value>1</value>
<value>11</value>
<value>1</value>
</row>
<row>
<value>2</value>
<value>10</value>
<value>1</value>
</row>
</table>
</dataset>

101
tests/functions_database_helper/update_rows_avoiding_duplicates_notify_status_test.php Normal file
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@ -0,0 +1,101 @@
<?php
/**
*
* @package testing
* @copyright (c) 2012 phpBB Group
* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
*
*/
require_once dirname(__FILE__) . '/../../phpBB/includes/functions_database_helper.php';
class phpbb_update_rows_avoiding_duplicates_notify_status_test extends phpbb_database_test_case
{
public function getDataSet()
{
return $this->createXMLDataSet(dirname(__FILE__).'/fixtures/topics_watch_duplicates.xml');
}
public static function fixture_data()
{
return array(
// description
// from array
// to value
// expected count with to value post update
// expected notify_status values
array(
'trivial',
array(1),
1000,
1,
1,
),
array(
'no conflict',
array(2),
3,
2,
1,
),
array(
'conflict, same notify status',
array(4),
5,
1,
1,
),
array(
'conflict, notify status 0 into 1',
array(6),
7,
1,
0,
),
array(
'conflict, notify status 1 into 0',
array(8),
9,
1,
0,
),
array(
'conflict and no conflict',
array(10),
11,
2,
0,
),
);
}
/**
* @dataProvider fixture_data
*/
public function test_update($description, $from, $to, $expected_result_count, $expected_notify_status)
{
$db = $this->new_dbal();
phpbb_update_rows_avoiding_duplicates_notify_status($db, TOPICS_WATCH_TABLE, 'topic_id', $from, $to);
$sql = 'SELECT COUNT(*) AS remaining_rows
FROM ' . TOPICS_WATCH_TABLE . '
WHERE topic_id = ' . (int) $to;
$result = $db->sql_query($sql);
$result_count = $db->sql_fetchfield('remaining_rows');
$db->sql_freeresult($result);
$this->assertEquals($expected_result_count, $result_count);
// user id of 1 is the user being updated
$sql = 'SELECT notify_status
FROM ' . TOPICS_WATCH_TABLE . '
WHERE topic_id = ' . (int) $to . '
AND user_id = 1';
$result = $db->sql_query($sql);
$notify_status = $db->sql_fetchfield('notify_status');
$db->sql_freeresult($result);
$this->assertEquals($expected_notify_status, $notify_status);
}
}

71
tests/functions_database_helper/update_rows_avoiding_duplicates_test.php Normal file
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@ -0,0 +1,71 @@
<?php
/**
*
* @package testing
* @copyright (c) 2012 phpBB Group
* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
*
*/
require_once dirname(__FILE__) . '/../../phpBB/includes/functions_database_helper.php';
class phpbb_update_rows_avoiding_duplicates_test extends phpbb_database_test_case
{
public function getDataSet()
{
return $this->createXMLDataSet(dirname(__FILE__).'/fixtures/bookmarks_duplicates.xml');
}
public static function fixture_data()
{
return array(
// description
// from array
// to value
// expected count with to value post update
array(
'trivial',
array(1),
10,
1,
),
array(
'no conflict',
array(2),
3,
2,
),
array(
'conflict',
array(4),
5,
1,
),
array(
'conflict and no conflict',
array(6),
7,
2,
),
);
}
/**
* @dataProvider fixture_data
*/
public function test_update($description, $from, $to, $expected_result_count)
{
$db = $this->new_dbal();
phpbb_update_rows_avoiding_duplicates($db, BOOKMARKS_TABLE, 'topic_id', $from, $to);
$sql = 'SELECT COUNT(*) AS remaining_rows
FROM ' . BOOKMARKS_TABLE . '
WHERE topic_id = ' . (int) $to;
$result = $db->sql_query($sql);
$result_count = $db->sql_fetchfield('remaining_rows');
$db->sql_freeresult($result);
$this->assertEquals($expected_result_count, $result_count);
}
}