First commit with working planet presentation code. No UI written for planet management yet.
<?php
/*
* Nuggie
* Version 0.1
* Copyright (C) 2007 Dan Fuhry
*
* This program is Free Software; you can redistribute 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.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
*/
/**
* Displays a planet as requested by a PageProcessor instance.
* @param string The page_id from PageProcessor.
*/
function nuggie_planet_uri_handler($page)
{
global $db, $session, $paths, $template, $plugins; // Common objects
$planet_id = dirtify_page_id($page->page_id);
$offset = 0;
if ( preg_match('#/start=([0-9]+)$#', $planet_id, $match) )
{
$planet_id = substr($planet_id, 0, (strlen($planet_id) - strlen($match[0])));
$offset = intval($match[1]);
}
//
// VALIDATION
//
// Fetch ACLs
$perms = $session->fetch_page_acl($planet_id, 'Planet');
// Obtain planet info
$q = $db->sql_query('SELECT p.planet_id, p.planet_name, p.planet_subtitle, p.planet_creator, p.planet_public, p.planet_visible, m.mapping_type, m.mapping_value ' . "\n"
. ' FROM ' . table_prefix . "planets AS p\n"
. " LEFT JOIN " . table_prefix . "planets_mapping AS m\n"
. " ON ( p.planet_id = m.planet_id )\n"
. " WHERE p.planet_name = '" . $db->escape(sanitize_page_id($planet_id)) . "';");
if ( !$q )
$db->_die();
if ( $db->numrows() < 1 )
{
// planet not found, fall out
return $page->err_page_not_existent();
}
// fetch first row, then seek back to the first result to allow mapping fetching later
$planet_data = $db->fetchrow();
$db->sql_data_seek(0);
// check author and publicity
if ( $planet_data['planet_creator'] != $session->user_id && !$planet_data['planet_public'] )
{
return $page->err_access_denied();
}
// ACL check
if ( !$perms->get_permissions('read') )
{
return $page->err_access_denied();
}
// Set page title
$page_title = dirtify_page_id($planet_data['planet_name']);
$template->assign_vars(array(
'PAGE_NAME' => htmlspecialchars($page_title)
));
// Try to grab the posts. The SQL tricks here are rather interesting, you'll have to look at it from a distance to grasp it.
// Basically just using MySQL to apply all the filters in one go. Nuggie doesn't do PostgreSQL yet.
$sql_base = "SELECT <columns>\n"
. " FROM " . table_prefix . "blog_posts AS p\n"
. " LEFT JOIN " . table_prefix . "blogs AS b\n"
. " ON ( b.user_id = p.post_author )\n"
. " LEFT JOIN " . table_prefix . "users AS u\n"
. " ON ( u.user_id = p.post_author )\n"
. " LEFT JOIN " . table_prefix . "comments AS c\n"
. " ON ( c.page_id = CAST(p.post_id AS char) AND c.namespace = 'BlogPost' )\n"
. " LEFT JOIN " . table_prefix . "tags AS t\n"
. " ON ( t.page_id = CAST(p.post_id AS char) AND t.namespace = 'BlogPost' )\n"
. " LEFT JOIN " . table_prefix . "planets_mapping AS m\n"
. " ON (\n"
. " ( m.mapping_type = " . NUGGIE_PLANET_FILTER_TAG . " AND m.mapping_value = t.tag_name ) OR\n"
. " ( m.mapping_type = " . NUGGIE_PLANET_FILTER_AUTHOR . " AND CAST(m.mapping_value AS unsigned integer) = p.post_author ) OR\n"
. " ( m.mapping_type = " . NUGGIE_PLANET_FILTER_KEYWORD . " AND ( p.post_text LIKE CONCAT('%', m.mapping_value, '%') OR p.post_title LIKE CONCAT('%', m.mapping_value, '%') ) )\n"
. " )\n"
. " WHERE m.planet_id = {$planet_data['planet_id']}\n"
. " AND p.post_published = 1\n"
. " GROUP BY p.post_id\n"
. " ORDER BY p.post_timestamp DESC\n"
. " <limit>;";
// pass 1: a test run to count the number of results
$sql = str_replace('<columns>', 'p.post_id', $sql_base);
$sql = str_replace('<limit>', "", $sql);
$q = $db->sql_query($sql);
if ( !$q )
$db->_die();
$count = $db->numrows();
$db->free_result($sql);
// pass 2: production run
$columns = 'p.post_id, p.post_title, p.post_title_clean, p.post_author, p.post_timestamp, p.post_text, b.blog_name, b.blog_subtitle, b.blog_type, b.allowed_users, u.username, u.user_level, COUNT(c.comment_id) AS num_comments, \'' . $db->escape($planet_id) . '\' AS referring_planet';
$sql = str_replace('<columns>', $columns, $sql_base);
$sql = str_replace('<limit>', "LIMIT $offset, 10", $sql);
// yea. that was one query.
$q = $db->sql_unbuffered_query($sql);
if ( !$q )
$db->_die();
// just let the paginator do the rest
$postbit = new NuggiePostbit();
// $q, $tpl_text, $num_results, $result_url, $start = 0, $perpage = 10, $callers = Array(), $header = '', $footer = ''
$html = paginate(
$q,
'{post_id}',
$count,
makeUrlNS('Planet', "$planet_id/start=%s", true),
0,
10,
array( 'post_id' => array($postbit, 'paginate_handler') ),
'<span class="menuclear"></span>'
);
$db->free_result($q);
$template->add_header('<link rel="stylesheet" type="text/css" href="' . scriptPath . '/plugins/nuggie/style.css" />');
$template->header();
echo $planet_data['planet_subtitle'];
echo $html;
$template->footer();
}
?>