WordPress/wp-includes/classes.php
2004-09-06 03:03:08 +00:00

593 lines
17 KiB
PHP

<?php
class WP_Query {
var $query;
var $query_vars;
var $posts;
var $post_count = 0;
var $current_post = -1;
var $post;
var $is_single = false;
var $is_page = false;
var $is_archive = false;
var $is_date = false;
var $is_year = false;
var $is_month = false;
var $is_day = false;
var $is_time = false;
var $is_author = false;
var $is_category = false;
var $is_search = false;
var $is_feed = false;
var $is_home = false;
var $is_404 = false;
function init () {
$this->is_single = false;
$this->is_page = false;
$this->is_archive = false;
$this->is_date = false;
$this->is_year = false;
$this->is_month = false;
$this->is_day = false;
$this->is_time = false;
$this->is_author = false;
$this->is_category = false;
$this->is_search = false;
$this->is_feed = false;
$this->is_home = false;
$this->is_404 = false;
unset($this->posts);
unset($this->query);
unset($this->query_vars);
$this->post_count = 0;
$this->current_post = -1;
}
function parse_query ($query) {
$this->init();
parse_str($query, $qv);
$this->query = $query;
$this->query_vars = $qv;
if ('' != $qv['name']) {
$this->is_single = true;
}
if (($qv['p'] != '') && ($qv['p'] != 'all')) {
$this->is_single = true;
}
if ('' != $qv['second']) {
$this->is_time = true;
$this->is_date = true;
}
if ('' != $qv['minute']) {
$this->is_time = true;
$this->is_date = true;
}
if ('' != $qv['hour']) {
$this->is_time = true;
$this->is_date = true;
}
if ('' != $qv['day']) {
if (! $this->is_date) {
$this->is_day = true;
$this->is_date = true;
}
}
if ('' != $qv['monthnum']) {
if (! $this->is_date) {
$this->is_month = true;
$this->is_date = true;
}
}
if ('' != $qv['year']) {
if (! $this->is_date) {
$this->is_year = true;
$this->is_date = true;
}
}
if ('' != $qv['m']) {
$this->is_date = true;
if (strlen($qv['m']) > 9) {
$this->is_time = true;
} else if (strlen($qv['m']) > 7) {
$this->is_day = true;
} else if (strlen($qv['m']) > 5) {
$this->is_month = true;
} else {
$this->is_year = true;
}
}
if ('' != $qv['w']) {
$this->is_date = true;
}
// If year, month, day, hour, minute, and second are set, a single
// post is being queried.
if (('' != $qv['hour']) && ('' != $qv['minute']) &&('' != $qv['second']) && ('' != $qv['year']) && ('' != $qv['monthnum']) && ('' != $qv['day'])) {
$this->is_single = true;
}
if (!empty($qv['s'])) {
$this->is_search = true;
}
if (empty($qv['cat']) || ($qv['cat'] == 'all') || ($qv['cat'] == '0')) {
$this->is_category = false;
} else {
if (stristr($qv['cat'],'-')) {
$this->is_category = false;
} else {
$this->is_category = true;
}
}
if ('' != $qv['category_name']) {
$this->is_category = true;
}
// single, date, and search override category.
if ($this->is_single || $this->is_date || $this->is_search) {
$this->is_category = false;
}
if ((empty($qv['author'])) || ($qv['author'] == 'all') || ($qv['author'] == '0')) {
$this->is_author = false;
} else {
$this->is_author = true;
}
if ('' != $qv['author_name']) {
$this->is_author = true;
}
if ('' != $qv['feed']) {
$this->is_feed = true;
}
if ('' != $qv['static'] || '' != $qv['pagename']) {
$this->is_page = true;
}
if ('404' == $qv['error']) {
$this->is_404 = true;
}
if ( ($this->is_date || $this->is_author || $this->is_category)
&& (! ($this->is_single || $this->is_page)) ) {
$this->is_archive = true;
}
if ( ! ($this->is_archive || $this->is_single || $this->is_page || $this->is_search || $this->is_feed || $this->is_404)) {
$this->is_home = true;
}
}
function get($query_var) {
if (isset($this->query_vars[$query_var])) {
return $this->query_vars[$query_var];
}
return '';
}
function get_posts() {
global $wpdb, $pagenow, $request, $user_ID;
// Shorthand.
$q = $this->query_vars;
// First let's clear some variables
$whichcat = '';
$whichauthor = '';
$result = '';
$where = '';
$limits = '';
$distinct = '';
$join = '';
if ( !isset($q['posts_per_page']) || $q['posts_per_page'] == 0 )
$q['posts_per_page'] = get_settings('posts_per_page');
if ( !isset($q['what_to_show']) )
$q['what_to_show'] = get_settings('what_to_show');
if ( isset($q['showposts']) && $q['showposts'] ) {
$q['showposts'] = (int) $q['showposts'];
$q['posts_per_page'] = $q['showposts'];
}
$add_hours = intval(get_settings('gmt_offset'));
$add_minutes = intval(60 * (get_settings('gmt_offset') - $add_hours));
$wp_posts_post_date_field = "post_date"; // "DATE_ADD(post_date, INTERVAL '$add_hours:$add_minutes' HOUR_MINUTE)";
// If a month is specified in the querystring, load that month
if ('' != $q['m']) {
$q['m'] = '' . preg_replace('|[^0-9]|', '', $q['m']);
$where .= ' AND YEAR(post_date)=' . substr($q['m'], 0, 4);
if (strlen($q['m'])>5)
$where .= ' AND MONTH(post_date)=' . substr($q['m'], 4, 2);
if (strlen($q['m'])>7)
$where .= ' AND DAYOFMONTH(post_date)=' . substr($q['m'], 6, 2);
if (strlen($q['m'])>9)
$where .= ' AND HOUR(post_date)=' . substr($q['m'], 8, 2);
if (strlen($q['m'])>11)
$where .= ' AND MINUTE(post_date)=' . substr($q['m'], 10, 2);
if (strlen($q['m'])>13)
$where .= ' AND SECOND(post_date)=' . substr($q['m'], 12, 2);
}
if ('' != $q['hour']) {
$q['hour'] = '' . intval($q['hour']);
$where .= " AND HOUR(post_date)='" . $q['hour'] . "'";
}
if ('' != $q['minute']) {
$q['minute'] = '' . intval($q['minute']);
$where .= " AND MINUTE(post_date)='" . $q['minute'] . "'";
}
if ('' != $q['second']) {
$q['second'] = '' . intval($q['second']);
$where .= " AND SECOND(post_date)='" . $q['second'] . "'";
}
if ('' != $q['year']) {
$q['year'] = '' . intval($q['year']);
$where .= " AND YEAR(post_date)='" . $q['year'] . "'";
}
if ('' != $q['monthnum']) {
$q['monthnum'] = '' . intval($q['monthnum']);
$where .= " AND MONTH(post_date)='" . $q['monthnum'] . "'";
}
if ('' != $q['day']) {
$q['day'] = '' . intval($q['day']);
$where .= " AND DAYOFMONTH(post_date)='" . $q['day'] . "'";
}
if ('' != $q['name']) {
$q['name'] = sanitize_title($q['name']);
$where .= " AND post_name = '" . $q['name'] . "'";
} else if ('' != $q['pagename']) {
// If pagename is set, set static to true and set name to pagename.
$q['pagename'] = sanitize_title($q['pagename']);
$q['name'] = $q['pagename'];
$q['static'] = true;
$where .= " AND post_name = '" . $q['pagename'] . "'";
}
if ('' != $q['w']) {
$q['w'] = ''.intval($q['w']);
$where .= " AND WEEK(post_date, 1)='" . $q['w'] . "'";
}
// If a post number is specified, load that post
if (($q['p'] != '') && ($q['p'] != 'all')) {
$q['p'] = intval($q['p']);
$where = ' AND ID = '.$q['p'];
}
// If a search pattern is specified, load the posts that match
if (!empty($q['s'])) {
$q['s'] = addslashes_gpc($q['s']);
$search = ' AND (';
$q['s'] = preg_replace('/, +/', ' ', $q['s']);
$q['s'] = str_replace(',', ' ', $q['s']);
$q['s'] = str_replace('"', ' ', $q['s']);
$q['s'] = trim($q['s']);
if ($q['exact']) {
$n = '';
} else {
$n = '%';
}
if (!$q['sentence']) {
$s_array = explode(' ',$q['s']);
$search .= '((post_title LIKE \''.$n.$s_array[0].$n.'\') OR (post_content LIKE \''.$n.$s_array[0].$n.'\'))';
for ( $i = 1; $i < count($s_array); $i = $i + 1) {
$search .= ' AND ((post_title LIKE \''.$n.$s_array[$i].$n.'\') OR (post_content LIKE \''.$n.$s_array[$i].$n.'\'))';
}
$search .= ' OR (post_title LIKE \''.$n.$q['s'].$n.'\') OR (post_content LIKE \''.$n.$q['s'].$n.'\')';
$search .= ')';
} else {
$search = ' AND ((post_title LIKE \''.$n.$q['s'].$n.'\') OR (post_content LIKE \''.$n.$q['s'].$n.'\'))';
}
}
// Category stuff
if ((empty($q['cat'])) || ($q['cat'] == 'all') || ($q['cat'] == '0') ||
// Bypass cat checks if fetching specific posts
(
intval($q['year']) || intval($q['monthnum']) || intval($q['day']) || intval($q['w']) ||
intval($q['p']) || !empty($q['name']) || !empty($q['s'])
)
) {
$whichcat='';
} else {
$q['cat'] = ''.urldecode($q['cat']).'';
$q['cat'] = addslashes_gpc($q['cat']);
if (stristr($q['cat'],'-')) {
// Note: if we have a negative, we ignore all the positives. It must
// always mean 'everything /except/ this one'. We should be able to do
// multiple negatives but we don't :-(
$eq = '!=';
$andor = 'AND';
$q['cat'] = explode('-',$q['cat']);
$q['cat'] = intval($q['cat'][1]);
} else {
$eq = '=';
$andor = 'OR';
}
$join = " LEFT JOIN $wpdb->post2cat ON ($wpdb->posts.ID = $wpdb->post2cat.post_id) ";
$cat_array = explode(' ',$q['cat']);
$whichcat .= ' AND (category_id '.$eq.' '.intval($cat_array[0]);
$whichcat .= get_category_children($cat_array[0], ' '.$andor.' category_id '.$eq.' ');
for ($i = 1; $i < (count($cat_array)); $i = $i + 1) {
$whichcat .= ' '.$andor.' category_id '.$eq.' '.intval($cat_array[$i]);
$whichcat .= get_category_children($cat_array[$i], ' '.$andor.' category_id '.$eq.' ');
}
$whichcat .= ')';
if ($eq == '!=') {
$q['cat'] = '-'.$q['cat']; // Put back the knowledge that we are excluding a category.
}
}
// Category stuff for nice URIs
if ('' != $q['category_name']) {
if (stristr($q['category_name'],'/')) {
$q['category_name'] = explode('/',$q['category_name']);
if ($q['category_name'][count($q['category_name'])-1]) {
$q['category_name'] = $q['category_name'][count($q['category_name'])-1]; // no trailing slash
} else {
$q['category_name'] = $q['category_name'][count($q['category_name'])-2]; // there was a trailling slash
}
}
$q['category_name'] = sanitize_title($q['category_name']);
$tables = ", $wpdb->post2cat, $wpdb->categories";
$join = " LEFT JOIN $wpdb->post2cat ON ($wpdb->posts.ID = $wpdb->post2cat.post_id) LEFT JOIN $wpdb->categories ON ($wpdb->post2cat.category_id = $wpdb->categories.cat_ID) ";
$whichcat = " AND (category_nicename = '" . $q['category_name'] . "'";
$q['cat'] = $wpdb->get_var("SELECT cat_ID FROM $wpdb->categories WHERE category_nicename = '" . $q['category_name'] . "'");
$whichcat .= get_category_children($q['cat'], " OR category_id = ");
$whichcat .= ")";
}
// Author/user stuff
if ((empty($q['author'])) || ($q['author'] == 'all') || ($q['author'] == '0')) {
$whichauthor='';
} else {
$q['author'] = ''.urldecode($q['author']).'';
$q['author'] = addslashes_gpc($q['author']);
if (stristr($q['author'], '-')) {
$eq = '!=';
$andor = 'AND';
$q['author'] = explode('-', $q['author']);
$q['author'] = ''.intval($q['author'][1]);
} else {
$eq = '=';
$andor = 'OR';
}
$author_array = explode(' ', $q['author']);
$whichauthor .= ' AND (post_author '.$eq.' '.intval($author_array[0]);
for ($i = 1; $i < (count($author_array)); $i = $i + 1) {
$whichauthor .= ' '.$andor.' post_author '.$eq.' '.intval($author_array[$i]);
}
$whichauthor .= ')';
}
// Author stuff for nice URIs
if ('' != $q['author_name']) {
if (stristr($q['author_name'],'/')) {
$q['author_name'] = explode('/',$q['author_name']);
if ($q['author_name'][count($q['author_name'])-1]) {
$q['author_name'] = $q['author_name'][count($q['author_name'])-1];#no trailing slash
} else {
$q['author_name'] = $q['author_name'][count($q['author_name'])-2];#there was a trailling slash
}
}
$q['author_name'] = sanitize_title($q['author_name']);
$q['author'] = $wpdb->get_var("SELECT ID FROM $wpdb->users WHERE user_nicename='".$q['author_name']."'");
$whichauthor .= ' AND (post_author = '.intval($q['author']).')';
}
$where .= $search.$whichcat.$whichauthor;
if ((empty($q['order'])) || ((strtoupper($q['order']) != 'ASC') && (strtoupper($q['order']) != 'DESC'))) {
$q['order']='DESC';
}
// Order by
if (empty($q['orderby'])) {
$q['orderby']='date '.$q['order'];
} else {
// Used to filter values
$allowed_keys = array('author','date','category','title');
$q['orderby'] = urldecode($q['orderby']);
$q['orderby'] = addslashes_gpc($q['orderby']);
$orderby_array = explode(' ',$q['orderby']);
if (!in_array($orderby_array[0],$allowed_keys)) {
$orderby_array[0] = 'date';
}
$q['orderby'] = $orderby_array[0].' '.$q['order'];
if (count($orderby_array)>1) {
for ($i = 1; $i < (count($orderby_array)); $i = $i + 1) {
// Only allow certain values for safety
if (in_array($orderby_array[$i],$allowed_keys)) {
$q['orderby'] .= ',post_'.$orderby_array[$i].' '.$q['order'];
}
}
}
}
if ($q['p'] == 'all') {
$where = '';
}
$now = gmdate('Y-m-d H:i:59');
if ($pagenow != 'post.php' && $pagenow != 'edit.php') {
if ((empty($q['poststart'])) || (empty($q['postend'])) || !($q['postend'] > $q['poststart'])) {
$where .= " AND post_date_gmt <= '$now'";
}
$distinct = 'DISTINCT';
}
if ('' != $q['static']) {
$where .= ' AND (post_status = "static"';
} else {
$where .= ' AND (post_status = "publish"';
}
// Get private posts
if (isset($user_ID) && ('' != intval($user_ID)))
$where .= " OR post_author = $user_ID AND post_status != 'draft' AND post_status != 'static')";
else
$where .= ')';
// Paging
if ( !empty($q['postend']) && ($q['postend'] > $q['poststart']) ) {
if ($q['what_to_show'] == 'posts') {
$q['poststart'] = intval($q['poststart']);
$q['postend'] = intval($q['postend']);
$limposts = $q['postend'] - $q['poststart'];
$limits = ' LIMIT '.$q['poststart'].','.$limposts;
} elseif ($q['what_to_show'] == 'days') {
$q['poststart'] = intval($q['poststart']);
$q['postend'] = intval($q['postend']);
$limposts = $q['postend'] - $q['poststart'];
$lastpostdate = get_lastpostdate();
$lastpostdate = mysql2date('Y-m-d 00:00:00',$lastpostdate);
$lastpostdate = mysql2date('U',$lastpostdate);
$startdate = date('Y-m-d H:i:s', ($lastpostdate - (($q['poststart'] -1) * 86400)));
$otherdate = date('Y-m-d H:i:s', ($lastpostdate - (($q['postend'] -1) * 86400)));
$where .= " AND post_date > '$otherdate' AND post_date < '$startdate'";
}
} else if (empty($q['nopaging']) && ! is_single()) {
$page = $q['paged'];
if (empty($page)) {
$page = 1;
}
if (($q['what_to_show'] == 'posts')) {
$pgstrt = '';
$pgstrt = (intval($page) -1) * $q['posts_per_page'] . ', ';
$limits = 'LIMIT '.$pgstrt.$q['posts_per_page'];
} elseif ($q['what_to_show'] == 'days') {
$post_dates = $wpdb->get_col('SELECT post_date FROM ' . $wpdb->posts . "$join WHERE (1=1) " . $where . ' ORDER BY post_date DESC');
$number_of_days = $q['posts_per_page'];
$page_number = -1;
$day_number = $number_of_days;
foreach ($post_dates as $post_date) {
if (($day_number % $number_of_days) == 0) {
$previousDay = (int)mysql2date('d', $post_date);
$previousMonth = (int)mysql2date('m', $post_date);
$previousYear = (int)mysql2date('Y', $post_date);
$page_number++;
$day_number = 1;
if ($page_number == $page) {
$end_date = $post_date;
break;
} else {
$start_date = $post_date;
continue;
}
}
$thisDay = (int)mysql2date('d', $post_date);
$thisMonth = (int)mysql2date('m', $post_date);
$thisYear = (int)mysql2date('Y', $post_date);
if (($thisDay != $previousDay) || ($thisMonth != $previousMonth) ||
($thisYear != $previousYear)) {
$previousDay = (int)mysql2date('d', $post_date);
$previousMonth = (int)mysql2date('m', $post_date);
$previousYear = (int)mysql2date('Y', $post_date);
$previous_date = $post_date;
$day_number++;
}
}
if ($page > 1) {
$where .= " AND post_date > '$end_date' AND post_date <= '$start_date'";
} else {
$where .= " AND post_date > '$end_date'";
}
}
}
$where = apply_filters('posts_where', $where);
$where .= " GROUP BY $wpdb->posts.ID";
$request = " SELECT $distinct * FROM $wpdb->posts $join WHERE 1=1".$where." ORDER BY post_" . $q['orderby'] . " $limits";
if ($q['preview']) {
$request = 'SELECT 1-1'; // dummy mysql query for the preview
// little funky fix for IEwin, rawk on that code
$is_winIE = ((preg_match('/MSIE/',$HTTP_USER_AGENT)) && (preg_match('/Win/',$HTTP_USER_AGENT)));
if (($is_winIE) && (!isset($IEWin_bookmarklet_fix))) {
$preview_content = preg_replace('/\%u([0-9A-F]{4,4})/e', "'&#'.base_convert('\\1',16,10).';'", $preview_content);
}
}
$this->posts = $wpdb->get_results($request);
$this->posts = apply_filters('the_posts', $this->posts);
$this->post_count = count($this->posts);
if ($this->post_count > 0) {
$this->post = $posts[0];
}
update_post_caches($this->posts);
return $this->posts;
}
function next_post() {
$this->current_post++;
$this->post = $this->posts[$this->current_post];
return $this->post;
}
function have_posts() {
if ($this->current_post + 1 < $this->post_count) {
return true;
}
return false;
}
function query($query) {
$this->parse_query($query);
return $this->get_posts();
}
function WP_Query ($query = '') {
if (! empty($query)) {
$this->query($query);
}
}
}
// Make a global instance.
if (! isset($wp_query)) {
$wp_query = new WP_Query();
}
?>