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SQL question -- finding the last post id and setting it to..
08-16-2004, 12:59 AM
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SQL question -- finding the last post id and setting it to..
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Posts: 2
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a variable.
I want to find the topic_last_post_id in the viewforum. I am kind of last, can somebody help me? Look at the very end:
PHP Code:
//-- mod : categories hierarchy --------------------------------------------------------------------
/***************************************************************************
* viewforum.php
* -------------------
* begin : Saturday, Feb 13, 2001
* copyright : (C) 2001 The phpBB Group
* email : support@phpbb.com
*
* $Id: viewforum.php,v 1.139.2.12 2004/03/13 15:08:23 acydburn Exp $
*
*
***************************************************************************/
/***************************************************************************
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
***************************************************************************/
define('IN_PHPBB', true);
$phpbb_root_path = './';
include($phpbb_root_path . 'extension.inc');
include($phpbb_root_path . 'common.'.$phpEx);
//
// Start initial var setup
//
if ( isset($HTTP_GET_VARS[POST_FORUM_URL]) || isset($HTTP_POST_VARS[POST_FORUM_URL]) )
{
$forum_id = ( isset($HTTP_GET_VARS[POST_FORUM_URL]) ) ? intval($HTTP_GET_VARS[POST_FORUM_URL]) : intval($HTTP_POST_VARS[POST_FORUM_URL]);
}
else if ( isset($HTTP_GET_VARS['forum']))
{
$forum_id = intval($HTTP_GET_VARS['forum']);
}
else
{
$forum_id = '';
}
$start = ( isset($HTTP_GET_VARS['start']) ) ? intval($HTTP_GET_VARS['start']) : 0;
if ( isset($HTTP_GET_VARS['mark']) || isset($HTTP_POST_VARS['mark']) )
{
$mark_read = (isset($HTTP_POST_VARS['mark'])) ? $HTTP_POST_VARS['mark'] : $HTTP_GET_VARS['mark'];
}
else
{
$mark_read = '';
}
//
// End initial var setup
//
//
// Check if the user has actually sent a forum ID with his/her request
// If not give them a nice error page.
//
//-- mod : categories hierarchy --------------------------------------------------------------------
//-- deleted
// if ( !empty($forum_id) )
// {
// $sql = "SELECT *
// FROM " . FORUMS_TABLE . "
// WHERE forum_id = $forum_id";
// if ( !($result = $db->sql_query($sql)) )
// {
// message_die(GENERAL_ERROR, 'Could not obtain forums information', '', __LINE__, __FILE__, $sql);
// }
// }
// else
// {
// message_die(GENERAL_MESSAGE, 'Forum_not_exist');
// }
//
//
// If the query doesn't return any rows this isn't a valid forum. Inform
// the user.
//
// if ( !($forum_row = $db->sql_fetchrow($result)) )
// {
// message_die(GENERAL_MESSAGE, 'Forum_not_exist');
// }
//-- fin mod : categories hierarchy ----------------------------------------------------------------
//
// Start session management
//
$userdata = session_pagestart($user_ip, $forum_id);
init_userprefs($userdata);
//
// End session management
//
//
// Start auth check
//
$is_auth = array();
//-- mod : categories hierarchy --------------------------------------------------------------------
//-- delete
// $is_auth = auth(AUTH_ALL, $forum_id, $userdata, $forum_row);
//-- add
$is_auth = $tree['auth'][POST_FORUM_URL . $forum_id];
//-- fin mod : categories hierarchy ----------------------------------------------------------------
if ( !$is_auth['auth_read'] || !$is_auth['auth_view'] )
{
if ( !$userdata['session_logged_in'] )
{
$redirect = POST_FORUM_URL . "=$forum_id" . ( ( isset($start) ) ? "&start=$start" : '' );
redirect(append_sid("login.$phpEx?redirect=viewforum.$phpEx&$redirect", true));
}
//
// The user is not authed to read this forum ...
//
$message = ( !$is_auth['auth_view'] ) ? $lang['Forum_not_exist'] : sprintf($lang['Sorry_auth_read'], $is_auth['auth_read_type']);
message_die(GENERAL_MESSAGE, $message);
}
//
// End of auth check
//
//
// Handle marking posts
//
if ( $mark_read == 'topics' )
{
if ( $userdata['session_logged_in'] )
{
$sql = "SELECT MAX(post_time) AS last_post
FROM " . POSTS_TABLE . "
WHERE forum_id = $forum_id";
if ( !($result = $db->sql_query($sql)) )
{
message_die(GENERAL_ERROR, 'Could not obtain forums information', '', __LINE__, __FILE__, $sql);
}
if ( $row = $db->sql_fetchrow($result) )
{
$tracking_forums = ( isset($HTTP_COOKIE_VARS[$board_config['cookie_name'] . '_f']) ) ? unserialize($HTTP_COOKIE_VARS[$board_config['cookie_name'] . '_f']) : array();
$tracking_topics = ( isset($HTTP_COOKIE_VARS[$board_config['cookie_name'] . '_t']) ) ? unserialize($HTTP_COOKIE_VARS[$board_config['cookie_name'] . '_t']) : array();
if ( ( count($tracking_forums) + count($tracking_topics) ) >= 150 && empty($tracking_forums[$forum_id]) )
{
asort($tracking_forums);
unset($tracking_forums[key($tracking_forums)]);
}
if ( $row['last_post'] > $userdata['user_lastvisit'] )
{
$tracking_forums[$forum_id] = time();
setcookie($board_config['cookie_name'] . '_f', serialize($tracking_forums), 0, $board_config['cookie_path'], $board_config['cookie_domain'], $board_config['cookie_secure']);
}
}
$template->assign_vars(array(
'META' => '<meta http-equiv="refresh" content="3;url=' . append_sid("viewforum.$phpEx?" . POST_FORUM_URL . "=$forum_id") . '">')
);
}
$message = $lang['Topics_marked_read'] . '<br /><br />' . sprintf($lang['Click_return_forum'], '<a href="' . append_sid("viewforum.$phpEx?" . POST_FORUM_URL . "=$forum_id") . '">', '</a> ');
message_die(GENERAL_MESSAGE, $message);
}
//
// End handle marking posts
//
$tracking_topics = ( isset($HTTP_COOKIE_VARS[$board_config['cookie_name'] . '_t']) ) ? unserialize($HTTP_COOKIE_VARS[$board_config['cookie_name'] . '_t']) : '';
$tracking_forums = ( isset($HTTP_COOKIE_VARS[$board_config['cookie_name'] . '_f']) ) ? unserialize($HTTP_COOKIE_VARS[$board_config['cookie_name'] . '_f']) : '';
//
// Do the forum Prune
//
if ( $is_auth['auth_mod'] && $board_config['prune_enable'] )
{
if ( $forum_row['prune_next'] < time() && $forum_row['prune_enable'] )
{
include($phpbb_root_path . 'includes/prune.'.$phpEx);
require($phpbb_root_path . 'includes/functions_admin.'.$phpEx);
auto_prune($forum_id);
}
}
//
// End of forum prune
//
//
// Obtain list of moderators of each forum
// First users, then groups ... broken into two queries
//
//-- mod : categories hierarchy --------------------------------------------------------------------
//-- delete
// $sql = "SELECT u.user_id, u.username
// FROM " . AUTH_ACCESS_TABLE . " aa, " . USER_GROUP_TABLE . " ug, " . GROUPS_TABLE . " g, " . USERS_TABLE . " u
// WHERE aa.forum_id = $forum_id
// AND aa.auth_mod = " . TRUE . "
// AND g.group_single_user = 1
// AND ug.group_id = aa.group_id
// AND g.group_id = aa.group_id
// AND u.user_id = ug.user_id
// GROUP BY u.user_id, u.username
// ORDER BY u.user_id";
// if ( !($result = $db->sql_query($sql)) )
// {
// message_die(GENERAL_ERROR, 'Could not query forum moderator information', '', __LINE__, __FILE__, $sql);
// }
//
// $moderators = array();
// while( $row = $db->sql_fetchrow($result) )
// {
// $moderators[] = '<a href="' . append_sid("profile.$phpEx?mode=viewprofile&" . POST_USERS_URL . "=" . $row['user_id']) . '">' . $row['username'] . '</a>';
// }
//
// $sql = "SELECT g.group_id, g.group_name
// FROM " . AUTH_ACCESS_TABLE . " aa, " . USER_GROUP_TABLE . " ug, " . GROUPS_TABLE . " g
// WHERE aa.forum_id = $forum_id
// AND aa.auth_mod = " . TRUE . "
// AND g.group_single_user = 0
// AND g.group_type <> ". GROUP_HIDDEN ."
// AND ug.group_id = aa.group_id
// AND g.group_id = aa.group_id
// GROUP BY g.group_id, g.group_name
// ORDER BY g.group_id";
// if ( !($result = $db->sql_query($sql)) )
// {
// message_die(GENERAL_ERROR, 'Could not query forum moderator information', '', __LINE__, __FILE__, $sql);
// }
//
// while( $row = $db->sql_fetchrow($result) )
// {
// $moderators[] = '<a href="' . append_sid("groupcp.$phpEx?" . POST_GROUPS_URL . "=" . $row['group_id']) . '">' . $row['group_name'] . '</a>';
// }
//-- add
// moderators list
$moderators = array();
$idx = $tree['keys'][ POST_FORUM_URL . $forum_id ];
for ( $i = 0; $i < count($data['user_id']); $i++ )
{
$moderators[] = '<a href="' . append_sid("./profile.$phpEx?mode=viewprofile&" . POST_USERS_URL . "=" . $tree['mods'][$idx]['user_id'][$i]) . '">' . $tree['mods'][$idx]['username'][$i] . '</a>';
}
for ( $i = 0; $i < count($data['group_id']); $i++ )
{
$moderators[] = '<a href="' . append_sid("./groupcp.$phpEx?" . POST_GROUPS_URL . "=" . $tree['mods'][$idx]['group_id'][$i]) . '">' . $tree['mods'][$idx]['group_name'][$i] . '</a>';
}
//-- fin mod : categories hierarchy ----------------------------------------------------------------
$l_moderators = ( count($moderators) == 1 ) ? $lang['Moderator'] : $lang['Moderators'];
$forum_moderators = ( count($moderators) ) ? implode(', ', $moderators) : $lang['None'];
unset($moderators);
//
// Generate a 'Show topics in previous x days' select box. If the topicsdays var is sent
// then get it's value, find the number of topics with dates newer than it (to properly
// handle pagination) and alter the main query
//
$previous_days = array(0, 1, 7, 14, 30, 90, 180, 364);
$previous_days_text = array($lang['All_Topics'], $lang['1_Day'], $lang['7_Days'], $lang['2_Weeks'], $lang['1_Month'], $lang['3_Months'], $lang['6_Months'], $lang['1_Year']);
if ( !empty($HTTP_POST_VARS['topicdays']) || !empty($HTTP_GET_VARS['topicdays']) )
{
$topic_days = ( !empty($HTTP_POST_VARS['topicdays']) ) ? intval($HTTP_POST_VARS['topicdays']) : intval($HTTP_GET_VARS['topicdays']);
$min_topic_time = time() - ($topic_days * 86400);
$sql = "SELECT COUNT(t.topic_id) AS forum_topics
FROM " . TOPICS_TABLE . " t, " . POSTS_TABLE . " p
WHERE t.forum_id = $forum_id
AND p.post_id = t.topic_last_post_id
AND p.post_time >= $min_topic_time";
if ( !($result = $db->sql_query($sql)) )
{
message_die(GENERAL_ERROR, 'Could not obtain limited topics count information', '', __LINE__, __FILE__, $sql);
}
$row = $db->sql_fetchrow($result);
$topics_count = ( $row['forum_topics'] ) ? $row['forum_topics'] : 1;
$limit_topics_time = "AND p.post_time >= $min_topic_time";
if ( !empty($HTTP_POST_VARS['topicdays']) )
{
$start = 0;
}
}
else
{
$topics_count = ( $forum_row['forum_topics'] ) ? $forum_row['forum_topics'] : 1;
$limit_topics_time = '';
$topic_days = 0;
}
$select_topic_days = '<select name="topicdays">';
for($i = 0; $i < count($previous_days); $i++)
{
$selected = ($topic_days == $previous_days[$i]) ? ' selected="selected"' : '';
$select_topic_days .= '<option value="' . $previous_days[$i] . '"' . $selected . '>' . $previous_days_text[$i] . '</option>';
}
$select_topic_days .= '</select>';
//
// All announcement data, this keeps announcements
// on each viewforum page ...
//
$sql = "SELECT t.*, u.username, u.user_id, u2.username as user2, u2.user_id as id2, p.post_time, p.post_username
FROM " . TOPICS_TABLE . " t, " . USERS_TABLE . " u, " . POSTS_TABLE . " p, " . USERS_TABLE . " u2
WHERE t.forum_id = $forum_id
AND t.topic_poster = u.user_id
AND p.post_id = t.topic_last_post_id
AND p.poster_id = u2.user_id
AND t.topic_type = " . POST_ANNOUNCE . "
ORDER BY t.topic_last_post_id DESC ";
if ( !($result = $db->sql_query($sql)) )
{
message_die(GENERAL_ERROR, 'Could not obtain topic information', '', __LINE__, __FILE__, $sql);
}
$topic_rowset = array();
$total_announcements = 0;
while( $row = $db->sql_fetchrow($result) )
{
$topic_rowset[] = $row;
$total_announcements++;
}
$db->sql_freeresult($result);
//
// Grab all the basic data (all topics except announcements)
// for this forum
//
$sql = "SELECT t.*, u.username, u.user_id, u2.username as user2, u2.user_id as id2, p.post_username, p2.post_username AS post_username2, p2.post_time
FROM " . TOPICS_TABLE . " t, " . USERS_TABLE . " u, " . POSTS_TABLE . " p, " . POSTS_TABLE . " p2, " . USERS_TABLE . " u2
WHERE t.forum_id = $forum_id
AND t.topic_poster = u.user_id
AND p.post_id = t.topic_first_post_id
AND p2.post_id = t.topic_last_post_id
AND u2.user_id = p2.poster_id
AND t.topic_type <> " . POST_ANNOUNCE . "
$limit_topics_time
ORDER BY t.topic_type DESC, t.topic_last_post_id DESC
LIMIT $start, ".$board_config['topics_per_page'];
if ( !($result = $db->sql_query($sql)) )
{
message_die(GENERAL_ERROR, 'Could not obtain topic information', '', __LINE__, __FILE__, $sql);
}
$total_topics = 0;
while( $row = $db->sql_fetchrow($result) )
{
$topic_rowset[] = $row;
$total_topics++;
}
$db->sql_freeresult($result);
//
// Total topics ...
//
$total_topics += $total_announcements;
//
// Define censored word matches
//
$orig_word = array();
$replacement_word = array();
obtain_word_list($orig_word, $replacement_word);
//
// Post URL generation for templating vars
//
$template->assign_vars(array(
'L_DISPLAY_TOPICS' => $lang['Display_topics'],
'U_POST_NEW_TOPIC' => append_sid("posting.$phpEx?mode=newtopic&" . POST_FORUM_URL . "=$forum_id"),
'S_SELECT_TOPIC_DAYS' => $select_topic_days,
'S_POST_DAYS_ACTION' => append_sid("viewforum.$phpEx?" . POST_FORUM_URL . "=" . $forum_id . "&start=$start"))
);
//
// User authorisation levels output
//
$s_auth_can = ( ( $is_auth['auth_post'] ) ? $lang['Rules_post_can'] : $lang['Rules_post_cannot'] ) . '<br />';
$s_auth_can .= ( ( $is_auth['auth_reply'] ) ? $lang['Rules_reply_can'] : $lang['Rules_reply_cannot'] ) . '<br />';
$s_auth_can .= ( ( $is_auth['auth_edit'] ) ? $lang['Rules_edit_can'] : $lang['Rules_edit_cannot'] ) . '<br />';
$s_auth_can .= ( ( $is_auth['auth_delete'] ) ? $lang['Rules_delete_can'] : $lang['Rules_delete_cannot'] ) . '<br />';
$s_auth_can .= ( ( $is_auth['auth_vote'] ) ? $lang['Rules_vote_can'] : $lang['Rules_vote_cannot'] ) . '<br />';
if ( $is_auth['auth_mod'] )
{
$s_auth_can .= sprintf($lang['Rules_moderate'], "<a href=\"modcp.$phpEx?" . POST_FORUM_URL . "=$forum_id&start=" . $start . "&sid=" . $userdata['session_id'] . '">', '</a>');
$topic_mod .= "<a href=\"modcp.$phpEx?" . POST_TOPIC_URL . "=$topic_id&mode=delete&sid=" . $userdata['session_id'] . '"><img src="' . $images['topic_mod_delete'] . '" alt="' . $lang['Delete_topic'] . '" title="' . $lang['Delete_topic'] . '" border="0" /></a> ';
$topic_mod .= "<a href=\"modcp.$phpEx?" . POST_TOPIC_URL . "=$topic_id&mode=move&sid=" . $userdata['session_id'] . '"><img src="' . $images['topic_mod_move'] . '" alt="' . $lang['Move_topic'] . '" title="' . $lang['Move_topic'] . '" border="0" /></a> ';
$topic_mod .= ( $forum_topic_data['topic_status'] == TOPIC_UNLOCKED ) ? "<a href=\"modcp.$phpEx?" . POST_TOPIC_URL . "=$topic_id&mode=lock&sid=" . $userdata['session_id'] . '"><img src="' . $images['topic_mod_lock'] . '" alt="' . $lang['Lock_topic'] . '" title="' . $lang['Lock_topic'] . '" border="0" /></a> ' : "<a href=\"modcp.$phpEx?" . POST_TOPIC_URL . "=$topic_id&mode=unlock&sid=" . $userdata['session_id'] . '"><img src="' . $images['topic_mod_unlock'] . '" alt="' . $lang['Unlock_topic'] . '" title="' . $lang['Unlock_topic'] . '" border="0" /></a> ';
$topic_mod .= "<a href=\"modcp.$phpEx?" . POST_TOPIC_URL . "=$topic_id&mode=split&sid=" . $userdata['session_id'] . '"><img src="' . $images['topic_mod_split'] . '" alt="' . $lang['Split_topic'] . '" title="' . $lang['Split_topic'] . '" border="0" /></a> ';
}
//
// Mozilla navigation bar
//
$nav_links['up'] = array(
'url' => append_sid('index.'.$phpEx),
'title' => sprintf($lang['Forum_Index'], $board_config['sitename'])
);
//
// Dump out the page header and load viewforum template
//
//-- mod : categories hierarchy --------------------------------------------------------------------
//-- add
$forum_row['forum_name'] = get_object_lang(POST_FORUM_URL . $forum_id, 'name');
//-- fin mod : categories hierarchy ----------------------------------------------------------------
define('SHOW_ONLINE', true);
$page_title = $lang['View_forum'] . ' - ' . $forum_row['forum_name'];
include($phpbb_root_path . 'includes/page_header.'.$phpEx);
$template->set_filenames(array(
'body' => 'viewforum_link1_body.tpl')
);
make_jumpbox('viewforum.'.$phpEx);
//-- mod : categories hierarchy --------------------------------------------------------------------
//-- add
display_index(POST_FORUM_URL . $forum_id);
//-- fin mod : categories hierarchy ----------------------------------------------------------------
$template->assign_vars(array(
'FORUM_ID' => $forum_id,
'FORUM_NAME' => $forum_row['forum_name'],
'MODERATORS' => $forum_moderators,
'POST_IMG' => ( $forum_row['forum_status'] == FORUM_LOCKED ) ? $images['post_locked'] : $images['post_new'],
'FOLDER_IMG' => $images['folder'],
'FOLDER_NEW_IMG' => $images['folder_new'],
'FOLDER_HOT_IMG' => $images['folder_hot'],
'FOLDER_HOT_NEW_IMG' => $images['folder_hot_new'],
'FOLDER_LOCKED_IMG' => $images['folder_locked'],
'FOLDER_LOCKED_NEW_IMG' => $images['folder_locked_new'],
'FOLDER_STICKY_IMG' => $images['folder_sticky'],
'FOLDER_STICKY_NEW_IMG' => $images['folder_sticky_new'],
'FOLDER_ANNOUNCE_IMG' => $images['folder_announce'],
'FOLDER_ANNOUNCE_NEW_IMG' => $images['folder_announce_new'],
'L_TOPICS' => $lang['Topics'],
'L_REPLIES' => $lang['Replies'],
'L_VIEWS' => $lang['Views'],
'L_POSTS' => $lang['Posts'],
'L_LASTPOST' => $lang['Last_Post'],
'L_MODERATOR' => $l_moderators,
'L_MARK_TOPICS_READ' => $lang['Mark_all_topics'],
'L_POST_NEW_TOPIC' => ( $forum_row['forum_status'] == FORUM_LOCKED ) ? $lang['Forum_locked'] : $lang['Post_new_topic'],
'L_NO_NEW_POSTS' => $lang['No_new_posts'],
'L_NEW_POSTS' => $lang['New_posts'],
'L_NO_NEW_POSTS_LOCKED' => $lang['No_new_posts_locked'],
'L_NEW_POSTS_LOCKED' => $lang['New_posts_locked'],
'L_NO_NEW_POSTS_HOT' => $lang['No_new_posts_hot'],
'L_NEW_POSTS_HOT' => $lang['New_posts_hot'],
'L_ANNOUNCEMENT' => $lang['Post_Announcement'],
'L_STICKY' => $lang['Post_Sticky'],
'L_POSTED' => $lang['Posted'],
'L_JOINED' => $lang['Joined'],
'L_AUTHOR' => $lang['Author'],
//--------------viewforum1 begin*****************************************************
'L_MESSAGE' => $lang['Message'],
'L_POST_SUBJECT' => $lang['Post_subject'],
//--------------viewforum1 end*****************************************************
'S_AUTH_LIST' => $s_auth_can,
'U_VIEW_FORUM' => append_sid("viewforum.$phpEx?" . POST_FORUM_URL ."=$forum_id"),
'U_MARK_READ' => append_sid("viewforum.$phpEx?" . POST_FORUM_URL . "=$forum_id&mark=topics"))
);
//
// End header
//
//-----------------------------------viewtopic begin*******************************************************
include($phpbb_root_path . 'includes/bbcode.'.$phpEx);
//
// Start initial var setup
//
$topic_id = $post_id = 0;
You see this "$topic_id = $post_id = 0;". I want to set 0 to the topic_last_post_id.
thankz
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08-16-2004, 04:54 AM
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Posts: 377
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i think you'll need UPDATE or SET command if i'm right...
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08-17-2004, 05:11 AM
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Thanks
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Posts: 2
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Thank you very much!
You gave me a good idea.
PHP Code:
$sql = "SELECT p.topic_id FROM " . POSTS_TABLE . " p, " . FORUM_TABLE . " f "
WHERE f.forum_id = '$forum_id'
AND p.post_id = f.forum_last_post_id;
if ( !($result = $db->sql_query($sql)) )
{
message_die(GENERAL_ERROR, 'Could not obtain newer/older topic information', '', __LINE__, __FILE__, $sql);
}
if ( !($row = $db->sql_fetchrow($result)) )
{
message_die(GENERAL_MESSAGE, 'No_new_last_posts');
}
$last_post_id = $row['topic_id'];
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