Move get_unread_topics_list() up in functions.php, added some documentation. Related to #46765

git-svn-id: file:///svn/phpbb/branches/phpBB-3_0_0@9884 89ea8834-ac86-4346-8a33-228a782c2dd0
This commit is contained in:
Andreas Fischer 2009-07-28 15:30:47 +00:00
parent e2d24413b6
commit da0da0dd89

View file

@ -1644,6 +1644,117 @@ function get_complete_topic_tracking($forum_id, $topic_ids, $global_announce_lis
return $last_read; return $last_read;
} }
/**
* Get list of unread topics
* only for registered users and non-cookie tracking
*
* @param int $user_id User ID (or false for currect user)
* @param string $sql_extra Extra WHERE SQL statement
*
* @return array[int][int] Topic ids as keys, mark_time of topic as value
* @author rxu
*/
function get_unread_topics_list($user_id = false, $sql_extra = '')
{
global $config, $db, $user;
if ($user_id === false)
{
$user_id = (int) $user->data['user_id'];
}
$tracked_topics_list = $unread_topics_list = $read_topics_list = array();
$tracked_forums_list = array();
if ($config['load_db_lastread'] && $user->data['is_registered'])
{
// List of the tracked forums (not ideal, hope the better way will be found)
// This list is to fetch later the forums user never read (fully) before
$sql = 'SELECT forum_id
FROM ' . FORUMS_TRACK_TABLE . "
WHERE user_id = $user_id";
$result = $db->sql_query($sql);
while ($row = $db->sql_fetchrow($result))
{
$tracked_forums_list[] = (int) $row['forum_id'];
}
$db->sql_freeresult($result);
// Get list of the unread topics - on topics tracking as the first step
$sql = 'SELECT t.topic_id, t.topic_last_post_time, tt.mark_time
FROM ' . TOPICS_TABLE . ' t, ' . TOPICS_TRACK_TABLE . " tt
WHERE t.topic_id = tt.topic_id
AND t.topic_last_post_time >= tt.mark_time
AND tt.user_id = $user_id
$sql_extra
ORDER BY t.topic_last_post_time DESC";
$result = $db->sql_query($sql);
while ($row = $db->sql_fetchrow($result))
{
if ($row['topic_last_post_time'] == $row['mark_time'])
{
// Check if there're read topics for the forums having unread ones
$read_topics_list[$row['topic_id']] = (int) $row['mark_time'];
}
else
{
$unread_topics_list[$row['topic_id']] = (int) $row['mark_time'];
}
}
$db->sql_freeresult($result);
// Get the full list of the tracked topics
$tracked_topics_list = array_merge(array_keys($unread_topics_list), array_keys($read_topics_list));
// Get list of the unread topics - on forums tracking as the second step
// We don't take in account topics tracked before
$sql = 'SELECT t.topic_id, ft.mark_time
FROM ' . TOPICS_TABLE . ' t, ' . FORUMS_TRACK_TABLE . ' ft
WHERE t.forum_id = ft.forum_id
AND t.topic_last_post_time > ft.mark_time
AND ' . $db->sql_in_set('t.topic_id', $tracked_topics_list, true, true) . "
AND ft.user_id = $user_id
$sql_extra
ORDER BY t.topic_last_post_time DESC";
$result = $db->sql_query($sql);
while ($row = $db->sql_fetchrow($result))
{
$unread_topics_list[$row['topic_id']] = (int) $row['mark_time'];
}
$db->sql_freeresult($result);
// Refresh the full list of the tracked topics
unset($tracked_topics_list);
$tracked_topics_list = array_merge(array_keys($unread_topics_list), array_keys($read_topics_list));
// And the last step - find unread topics were not found before (that can mean a user has never read some forums)
$sql = 'SELECT topic_id
FROM ' . TOPICS_TABLE . '
WHERE topic_last_post_time > ' . (int) $user->data['user_lastmark'] . '
AND ' . $db->sql_in_set('topic_id', $tracked_topics_list, true, true) . '
AND ' . $db->sql_in_set('forum_id', $tracked_forums_list, true, true) . "
$sql_extra
ORDER BY topic_last_post_time DESC";
$result = $db->sql_query_limit($sql, 1000);
while ($row = $db->sql_fetchrow($result))
{
$unread_topics_list[$row['topic_id']] = (int) $user->data['user_lastmark'];
}
$db->sql_freeresult($result);
}
else if ($config['load_anon_lastread'] || $user->data['is_registered'])
{
// We do not implement unread topics list for cookie based tracking
// because it would require expensive database queries
}
return $unread_topics_list;
}
/** /**
* Check for read forums and update topic tracking info accordingly * Check for read forums and update topic tracking info accordingly
* *
@ -4129,109 +4240,4 @@ function phpbb_user_session_handler()
return; return;
} }
/*
* Get list of unread topics
* only for registered users and non-cookie tracking this function is used
*/
function get_unread_topics_list($user_id = false, $sql_extra = '')
{
global $config, $db, $user;
if ($user_id === false)
{
$user_id = (int) $user->data['user_id'];
}
$tracked_topics_list = $unread_topics_list = $read_topics_list = array();
$tracked_forums_list = array();
if ($config['load_db_lastread'] && $user->data['is_registered'])
{
// List of the tracked forums (not ideal, hope the better way will be found)
// This list is to fetch later the forums user never read (fully) before
$sql = 'SELECT forum_id
FROM ' . FORUMS_TRACK_TABLE . "
WHERE user_id = $user_id";
$result = $db->sql_query($sql);
while ($row = $db->sql_fetchrow($result))
{
$tracked_forums_list[] = (int) $row['forum_id'];
}
$db->sql_freeresult($result);
// Get list of the unread topics - on topics tracking as the first step
$sql = 'SELECT t.topic_id, t.topic_last_post_time, tt.mark_time
FROM ' . TOPICS_TABLE . ' t, ' . TOPICS_TRACK_TABLE . " tt
WHERE t.topic_id = tt.topic_id
AND t.topic_last_post_time >= tt.mark_time
AND tt.user_id = $user_id
$sql_extra
ORDER BY t.topic_last_post_time DESC";
$result = $db->sql_query($sql);
while ($row = $db->sql_fetchrow($result))
{
if ($row['topic_last_post_time'] == $row['mark_time'])
{
// Check if there're read topics for the forums having unread ones
$read_topics_list[$row['topic_id']] = (int) $row['mark_time'];
}
else
{
$unread_topics_list[$row['topic_id']] = (int) $row['mark_time'];
}
}
$db->sql_freeresult($result);
// Get the full list of the tracked topics
$tracked_topics_list = array_merge(array_keys($unread_topics_list), array_keys($read_topics_list));
// Get list of the unread topics - on forums tracking as the second step
// We don't take in account topics tracked before
$sql = 'SELECT t.topic_id, ft.mark_time
FROM ' . TOPICS_TABLE . ' t, ' . FORUMS_TRACK_TABLE . ' ft
WHERE t.forum_id = ft.forum_id
AND t.topic_last_post_time > ft.mark_time
AND ' . $db->sql_in_set('t.topic_id', $tracked_topics_list, true, true) . "
AND ft.user_id = $user_id
$sql_extra
ORDER BY t.topic_last_post_time DESC";
$result = $db->sql_query($sql);
while ($row = $db->sql_fetchrow($result))
{
$unread_topics_list[$row['topic_id']] = (int) $row['mark_time'];
}
$db->sql_freeresult($result);
// Refresh the full list of the tracked topics
unset($tracked_topics_list);
$tracked_topics_list = array_merge(array_keys($unread_topics_list), array_keys($read_topics_list));
// And the last step - find unread topics were not found before (that can mean a user has never read some forums)
$sql = 'SELECT topic_id
FROM ' . TOPICS_TABLE . '
WHERE topic_last_post_time > ' . (int) $user->data['user_lastmark'] . '
AND ' . $db->sql_in_set('topic_id', $tracked_topics_list, true, true) . '
AND ' . $db->sql_in_set('forum_id', $tracked_forums_list, true, true) . "
$sql_extra
ORDER BY topic_last_post_time DESC";
$result = $db->sql_query_limit($sql, 1000);
while ($row = $db->sql_fetchrow($result))
{
$unread_topics_list[$row['topic_id']] = (int) $user->data['user_lastmark'];
}
$db->sql_freeresult($result);
}
else if ($config['load_anon_lastread'] || $user->data['is_registered'])
{
// We do not implement unread topics list for cookie based tracking
// because it would require expensive database queries
}
return $unread_topics_list;
}
?> ?>