WordPress/wp-includes/query.php

1091 lines
28 KiB
PHP

<?php
/*
* The Big Query.
*/
function get_query_var($var) {
global $wp_query;
return $wp_query->get($var);
}
function &query_posts($query) {
global $wp_query;
return $wp_query->query($query);
}
/*
* Query type checks.
*/
function is_admin () {
global $wp_query;
return ( $wp_query->is_admin || strstr($_SERVER['REQUEST_URI'], 'wp-admin/') );
}
function is_archive () {
global $wp_query;
return $wp_query->is_archive;
}
function is_attachment () {
global $wp_query;
return $wp_query->is_attachment;
}
function is_author ($author = '') {
global $wp_query;
if ( !$wp_query->is_author )
return false;
if ( empty($author) )
return true;
$author_obj = $wp_query->get_queried_object();
if ( $author == $author_obj->ID )
return true;
elseif ( $author == $author_obj->nickname )
return true;
elseif ( $author == $author_obj->user_nicename )
return true;
return false;
}
function is_category ($category = '') {
global $wp_query;
if ( !$wp_query->is_category )
return false;
if ( empty($category) )
return true;
$cat_obj = $wp_query->get_queried_object();
if ( $category == $cat_obj->cat_ID )
return true;
else if ( $category == $cat_obj->cat_name )
return true;
elseif ( $category == $cat_obj->category_nicename )
return true;
return false;
}
function is_comments_popup () {
global $wp_query;
return $wp_query->is_comments_popup;
}
function is_date () {
global $wp_query;
return $wp_query->is_date;
}
function is_day () {
global $wp_query;
return $wp_query->is_day;
}
function is_feed () {
global $wp_query;
return $wp_query->is_feed;
}
function is_home () {
global $wp_query;
return $wp_query->is_home;
}
function is_month () {
global $wp_query;
return $wp_query->is_month;
}
function is_page ($page = '') {
global $wp_query;
if ( !$wp_query->is_page )
return false;
if ( empty($page) )
return true;
$page_obj = $wp_query->get_queried_object();
if ( $page == $page_obj->ID )
return true;
elseif ( $page == $page_obj->post_title )
return true;
else if ( $page == $page_obj->post_name )
return true;
return false;
}
function is_paged () {
global $wp_query;
return $wp_query->is_paged;
}
function is_plugin_page() {
global $plugin_page;
if ( isset($plugin_page) )
return true;
return false;
}
function is_preview() {
global $wp_query;
return $wp_query->is_preview;
}
function is_robots() {
global $wp_query;
return $wp_query->is_robots;
}
function is_search () {
global $wp_query;
return $wp_query->is_search;
}
function is_single ($post = '') {
global $wp_query;
if ( !$wp_query->is_single )
return false;
if ( empty( $post) )
return true;
$post_obj = $wp_query->get_queried_object();
if ( $post == $post_obj->ID )
return true;
elseif ( $post == $post_obj->post_title )
return true;
elseif ( $post == $post_obj->post_name )
return true;
return false;
}
function is_time () {
global $wp_query;
return $wp_query->is_time;
}
function is_trackback () {
global $wp_query;
return $wp_query->is_trackback;
}
function is_year () {
global $wp_query;
return $wp_query->is_year;
}
function is_404 () {
global $wp_query;
return $wp_query->is_404;
}
/*
* The Loop. Post loop control.
*/
function have_posts() {
global $wp_query;
return $wp_query->have_posts();
}
function in_the_loop() {
global $wp_query;
return $wp_query->in_the_loop;
}
function rewind_posts() {
global $wp_query;
return $wp_query->rewind_posts();
}
function the_post() {
global $wp_query;
$wp_query->the_post();
}
/*
* WP_Query
*/
class WP_Query {
var $query;
var $query_vars;
var $queried_object;
var $queried_object_id;
var $request;
var $posts;
var $post_count = 0;
var $current_post = -1;
var $in_the_loop = false;
var $post;
var $is_single = false;
var $is_preview = 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_trackback = false;
var $is_home = false;
var $is_404 = false;
var $is_comments_popup = false;
var $is_admin = false;
var $is_attachment = false;
var $is_robots = false;
function init_query_flags() {
$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_trackback = false;
$this->is_home = false;
$this->is_404 = false;
$this->is_paged = false;
$this->is_admin = false;
$this->is_attachment = false;
$this->is_robots = false;
}
function init () {
unset($this->posts);
unset($this->query);
unset($this->query_vars);
unset($this->queried_object);
unset($this->queried_object_id);
$this->post_count = 0;
$this->current_post = -1;
$this->in_the_loop = false;
$this->init_query_flags();
}
// Reparse the query vars.
function parse_query_vars() {
$this->parse_query('');
}
// Parse a query string and set query type booleans.
function parse_query ($query) {
if ( !empty($query) || !isset($this->query) ) {
$this->init();
parse_str($query, $qv);
$this->query = $query;
$this->query_vars = $qv;
}
if ( ! empty($qv['robots']) ) {
$this->is_robots = true;
return;
}
if ('404' == $qv['error']) {
$this->is_404 = true;
if ( !empty($query) ) {
do_action('parse_query', array(&$this));
}
return;
}
$qv['m'] = (int) $qv['m'];
$qv['p'] = (int) $qv['p'];
// Compat. Map subpost to attachment.
if ( '' != $qv['subpost'] )
$qv['attachment'] = $qv['subpost'];
if ( '' != $qv['subpost_id'] )
$qv['attachment_id'] = $qv['subpost_id'];
if ( ('' != $qv['attachment']) || (int) $qv['attachment_id'] ) {
$this->is_single = true;
$this->is_attachment = true;
} elseif ('' != $qv['name']) {
$this->is_single = true;
} elseif ( $qv['p'] ) {
$this->is_single = true;
} elseif (('' != $qv['hour']) && ('' != $qv['minute']) &&('' != $qv['second']) && ('' != $qv['year']) && ('' != $qv['monthnum']) && ('' != $qv['day'])) {
// If year, month, day, hour, minute, and second are set, a single
// post is being queried.
$this->is_single = true;
} elseif ('' != $qv['static'] || '' != $qv['pagename'] || '' != $qv['page_id']) {
$this->is_page = true;
$this->is_single = false;
} elseif (!empty($qv['s'])) {
$this->is_search = true;
} else {
// Look for archive queries. Dates, categories, authors.
if ( (int) $qv['second']) {
$this->is_time = true;
$this->is_date = true;
}
if ( (int) $qv['minute']) {
$this->is_time = true;
$this->is_date = true;
}
if ( (int) $qv['hour']) {
$this->is_time = true;
$this->is_date = true;
}
if ( (int) $qv['day']) {
if (! $this->is_date) {
$this->is_day = true;
$this->is_date = true;
}
}
if ( (int) $qv['monthnum']) {
if (! $this->is_date) {
$this->is_month = true;
$this->is_date = true;
}
}
if ( (int) $qv['year']) {
if (! $this->is_date) {
$this->is_year = true;
$this->is_date = true;
}
}
if ( (int) $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']) {
$this->is_date = true;
}
if (empty($qv['cat']) || ($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']) {
$this->is_category = true;
}
if ((empty($qv['author'])) || ($qv['author'] == '0')) {
$this->is_author = false;
} else {
$this->is_author = true;
}
if ('' != $qv['author_name']) {
$this->is_author = true;
}
if ( ($this->is_date || $this->is_author || $this->is_category)) {
$this->is_archive = true;
}
}
if ('' != $qv['feed']) {
$this->is_feed = true;
}
if ('' != $qv['tb']) {
$this->is_trackback = true;
}
if ('' != $qv['paged']) {
$this->is_paged = true;
}
if ('' != $qv['comments_popup']) {
$this->is_comments_popup = true;
}
//if we're previewing inside the write screen
if ('' != $qv['preview']) {
$this->is_preview = true;
}
if (strstr($_SERVER['PHP_SELF'], 'wp-admin/')) {
$this->is_admin = true;
}
if ( ! ($this->is_attachment || $this->is_archive || $this->is_single || $this->is_page || $this->is_search || $this->is_feed || $this->is_trackback || $this->is_404 || $this->is_admin || $this->is_comments_popup)) {
$this->is_home = true;
}
if ( !empty($query) ) {
do_action('parse_query', array(&$this));
}
}
function set_404() {
$this->init_query_flags();
$this->is_404 = true;
}
function get($query_var) {
if (isset($this->query_vars[$query_var])) {
return $this->query_vars[$query_var];
}
return '';
}
function set($query_var, $value) {
$this->query_vars[$query_var] = $value;
}
function &get_posts() {
global $wpdb, $pagenow, $user_ID;
do_action('pre_get_posts', array(&$this));
// Shorthand.
$q = &$this->query_vars;
// First let's clear some variables
$distinct = '';
$whichcat = '';
$whichauthor = '';
$whichpage = '';
$result = '';
$where = '';
$limits = '';
$join = '';
if ( !isset($q['post_type']) )
$q['post_type'] = 'post';
$post_type = $q['post_type'];
if ( !isset($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'] = $q['showposts'];
}
if ( (isset($q['posts_per_archive_page']) && $q['posts_per_archive_page'] != 0) && ($this->is_archive || $this->is_search) )
$q['posts_per_page'] = $q['posts_per_archive_page'];
if ( !isset($q['nopaging']) ) {
if ($q['posts_per_page'] == -1) {
$q['nopaging'] = true;
} else {
$q['nopaging'] = false;
}
}
if ( $this->is_feed ) {
$q['posts_per_page'] = get_settings('posts_per_rss');
$q['what_to_show'] = 'posts';
}
if ( $this->is_home && (empty($this->query) || $q['preview'] == 'true') && ( 'page' == get_option('show_on_front') ) && get_option('page_on_front') ) {
$this->is_page = true;
$this->is_home = false;
$q['page_id'] = get_option('page_on_front');
}
if (isset($q['page'])) {
$q['page'] = trim($q['page'], '/');
$q['page'] = (int) $q['page'];
}
$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 ( (int) $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 ( (int) $q['hour'] ) {
$q['hour'] = '' . intval($q['hour']);
$where .= " AND HOUR(post_date)='" . $q['hour'] . "'";
}
if ( (int) $q['minute'] ) {
$q['minute'] = '' . intval($q['minute']);
$where .= " AND MINUTE(post_date)='" . $q['minute'] . "'";
}
if ( (int) $q['second'] ) {
$q['second'] = '' . intval($q['second']);
$where .= " AND SECOND(post_date)='" . $q['second'] . "'";
}
if ( (int) $q['year'] ) {
$q['year'] = '' . intval($q['year']);
$where .= " AND YEAR(post_date)='" . $q['year'] . "'";
}
if ( (int) $q['monthnum'] ) {
$q['monthnum'] = '' . intval($q['monthnum']);
$where .= " AND MONTH(post_date)='" . $q['monthnum'] . "'";
}
if ( (int) $q['day'] ) {
$q['day'] = '' . intval($q['day']);
$where .= " AND DAYOFMONTH(post_date)='" . $q['day'] . "'";
}
// Compat. Map subpost to attachment.
if ( '' != $q['subpost'] )
$q['attachment'] = $q['subpost'];
if ( '' != $q['subpost_id'] )
$q['attachment_id'] = $q['subpost_id'];
if ('' != $q['name']) {
$q['name'] = sanitize_title($q['name']);
$where .= " AND post_name = '" . $q['name'] . "'";
} else if ('' != $q['pagename']) {
$reqpage = get_page_by_path($q['pagename']);
if ( !empty($reqpage) )
$reqpage = $reqpage->ID;
else
$reqpage = 0;
if ( ('page' == get_option('show_on_front') ) && ( $reqpage == get_option('page_for_posts') ) ) {
$this->is_page = false;
$this->is_home = true;
} else {
$q['pagename'] = str_replace('%2F', '/', urlencode(urldecode($q['pagename'])));
$page_paths = '/' . trim($q['pagename'], '/');
$q['pagename'] = sanitize_title(basename($page_paths));
$q['name'] = $q['pagename'];
$where .= " AND (ID = '$reqpage')";
}
} elseif ('' != $q['attachment']) {
$q['attachment'] = str_replace('%2F', '/', urlencode(urldecode($q['attachment'])));
$attach_paths = '/' . trim($q['attachment'], '/');
$q['attachment'] = sanitize_title(basename($attach_paths));
$q['name'] = $q['attachment'];
$where .= " AND post_name = '" . $q['attachment'] . "'";
}
if ( (int) $q['w'] ) {
$q['w'] = ''.intval($q['w']);
$where .= " AND WEEK(post_date, 1)='" . $q['w'] . "'";
}
if ( intval($q['comments_popup']) )
$q['p'] = intval($q['comments_popup']);
// If a attachment is requested by number, let it supercede any post number.
if ( ($q['attachment_id'] != '') && (intval($q['attachment_id']) != 0) )
$q['p'] = (int) $q['attachment_id'];
// If a post number is specified, load that post
if (($q['p'] != '') && intval($q['p']) != 0) {
$q['p'] = (int) $q['p'];
$where = ' AND ID = ' . $q['p'];
}
if (($q['page_id'] != '') && (intval($q['page_id']) != 0)) {
$q['page_id'] = intval($q['page_id']);
if ( ('page' == get_option('show_on_front') ) && ( $q['page_id'] == get_option('page_for_posts') ) ) {
$this->is_page = false;
$this->is_home = true;
} else {
$q['p'] = $q['page_id'];
$where = ' AND ID = '.$q['page_id'];
}
}
// 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']);
$q['search_terms'] = $s_array;
$search .= '((post_title LIKE \''.$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'] == '0') ||
// Bypass cat checks if fetching specific posts
( $this->is_single || $this->is_page )) {
$whichcat='';
} else {
$q['cat'] = ''.urldecode($q['cat']).'';
$q['cat'] = addslashes_gpc($q['cat']);
$join = " LEFT JOIN $wpdb->post2cat ON ($wpdb->posts.ID = $wpdb->post2cat.post_id) ";
$cat_array = preg_split('/[,\s]+/', $q['cat']);
$in_cats = $out_cats = $out_posts = '';
foreach ( $cat_array as $cat ) {
$cat = intval($cat);
$in = strstr($cat, '-') ? false : true;
$cat = trim($cat, '-');
if ( $in )
$in_cats .= "$cat, " . get_category_children($cat, '', ', ');
else
$out_cats .= "$cat, " . get_category_children($cat, '', ', ');
}
$in_cats = substr($in_cats, 0, -2);
$out_cats = substr($out_cats, 0, -2);
if ( strlen($in_cats) > 0 )
$in_cats = " AND category_id IN ($in_cats)";
if ( strlen($out_cats) > 0 ) {
$ids = $wpdb->get_col("SELECT post_id FROM $wpdb->post2cat WHERE category_id IN ($out_cats)");
if ( is_array($ids) && count($ids > 0) ) {
foreach ( $ids as $id )
$out_posts .= "$id, ";
$out_posts = substr($out_posts, 0, -2);
}
if ( strlen($out_posts) > 0 )
$out_cats = " AND ID NOT IN ($out_posts)";
}
$whichcat = $in_cats . $out_cats;
$distinct = 'DISTINCT';
}
// Category stuff for nice URIs
global $cache_categories;
if ('' != $q['category_name']) {
$reqcat = get_category_by_path($q['category_name']);
$q['category_name'] = str_replace('%2F', '/', urlencode(urldecode($q['category_name'])));
$cat_paths = '/' . trim($q['category_name'], '/');
$q['category_name'] = sanitize_title(basename($cat_paths));
$cat_paths = '/' . trim(urldecode($q['category_name']), '/');
$q['category_name'] = sanitize_title(basename($cat_paths));
$cat_paths = explode('/', $cat_paths);
foreach($cat_paths as $pathdir)
$cat_path .= ($pathdir!=''?'/':'') . sanitize_title($pathdir);
//if we don't match the entire hierarchy fallback on just matching the nicename
if ( empty($reqcat) )
$reqcat = get_category_by_path($q['category_name'], false);
if ( !empty($reqcat) )
$reqcat = $reqcat->cat_ID;
else
$reqcat = 0;
$q['cat'] = $reqcat;
$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) ";
$whichcat = " AND category_id IN ({$q['cat']}, ";
$whichcat .= get_category_children($q['cat'], '', ', ');
$whichcat = substr($whichcat, 0, -2);
$whichcat .= ")";
$distinct = 'DISTINCT';
}
// Author/user stuff
if ((empty($q['author'])) || ($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 = preg_split('/[,\s]+/', $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'])) {
$q['orderby'] = 'post_date '.$q['order'];
} else {
// Used to filter values
$allowed_keys = array('author', 'date', 'category', 'title', 'modified', 'menu_order');
$q['orderby'] = urldecode($q['orderby']);
$q['orderby'] = addslashes_gpc($q['orderby']);
$orderby_array = explode(' ',$q['orderby']);
if ( empty($orderby_array) )
$orderby_array[] = $q['orderby'];
$q['orderby'] = '';
for ($i = 0; $i < count($orderby_array); $i++) {
// Only allow certain values for safety
$orderby = $orderby_array[$i];
if ( 'menu_order' != $orderby )
$orderby = 'post_' . $orderby;
if ( in_array($orderby_array[$i], $allowed_keys) )
$q['orderby'] .= (($i == 0) ? '' : ',') . "$orderby {$q['order']}";
}
if ( empty($q['orderby']) )
$q['orderby'] = 'post_date '.$q['order'];
}
if ( $this->is_attachment ) {
$where .= ' AND (post_type = "attachment")';
} elseif ($this->is_page) {
$where .= ' AND (post_type = "page")';
} elseif ($this->is_single) {
$where .= ' AND (post_type = "post")';
} else {
$where .= " AND (post_type = '$post_type' AND (post_status = 'publish'";
if ( is_admin() )
$where .= " OR post_status = 'future' OR post_status = 'draft'";
if ( is_user_logged_in() ) {
if ( 'post' == $post_type )
$cap = 'edit_private_posts';
else
$cap = 'edit_private_pages';
if ( current_user_can($cap) )
$where .= " OR post_status = 'private'";
else
$where .= " OR post_author = $user_ID AND post_status = 'private'";
}
$where .= '))';
}
// Apply filters on where and join prior to paging so that any
// manipulations to them are reflected in the paging by day queries.
$where = apply_filters('posts_where', $where);
$join = apply_filters('posts_join', $join);
// Paging
if (empty($q['nopaging']) && ! $this->is_single && ! $this->is_page) {
$page = $q['paged'];
if (empty($page)) {
$page = 1;
}
if (($q['what_to_show'] == 'posts')) {
if ( empty($q['offset']) ) {
$pgstrt = '';
$pgstrt = (intval($page) -1) * $q['posts_per_page'] . ', ';
$limits = 'LIMIT '.$pgstrt.$q['posts_per_page'];
} else { // we're ignoring $page and using 'offset'
$pgstrt = intval($q['offset']) . ', ';
$limits = 'LIMIT ' . $pgstrt . $q['posts_per_page'];
}
} elseif ($q['what_to_show'] == 'days') {
$startrow = $q['posts_per_page'] * (intval($page)-1);
$start_date = $wpdb->get_var("SELECT max(post_date) FROM $wpdb->posts $join WHERE (1=1) $where GROUP BY year(post_date), month(post_date), dayofmonth(post_date) ORDER BY post_date DESC LIMIT $startrow,1");
$endrow = $startrow + $q['posts_per_page'] - 1;
$end_date = $wpdb->get_var("SELECT min(post_date) FROM $wpdb->posts $join WHERE (1=1) $where GROUP BY year(post_date), month(post_date), dayofmonth(post_date) ORDER BY post_date DESC LIMIT $endrow,1");
if ($page > 1) {
$where .= " AND post_date >= '$end_date' AND post_date <= '$start_date'";
} else {
$where .= " AND post_date >= '$end_date'";
}
}
}
// Apply post-paging filters on where and join. Only plugins that
// manipulate paging queries should use these hooks.
$where = apply_filters('posts_where_paged', $where);
$groupby = '';
$groupby = apply_filters('posts_groupby', $groupby);
if ( ! empty($groupby) )
$groupby = 'GROUP BY ' . $groupby;
$join = apply_filters('posts_join_paged', $join);
$orderby = apply_filters('posts_orderby', $q['orderby']);
$distinct = apply_filters('posts_distinct', $distinct);
$fields = apply_filters('posts_fields', "$wpdb->posts.*");
$request = " SELECT $distinct $fields FROM $wpdb->posts $join WHERE 1=1 $where $groupby ORDER BY $orderby $limits";
$this->request = apply_filters('posts_request', $request);
$this->posts = $wpdb->get_results($this->request);
// Check post status to determine if post should be displayed.
if ( !empty($this->posts) && ($this->is_single || $this->is_page) ) {
$status = get_post_status($this->posts[0]);
//$type = get_post_type($this->posts[0]);
if ( ('publish' != $status) ) {
if ( ! is_user_logged_in() ) {
// User must be logged in to view unpublished posts.
$this->posts = array();
} else {
if ('draft' == $status) {
// User must have edit permissions on the draft to preview.
if (! current_user_can('edit_post', $this->posts[0]->ID)) {
$this->posts = array();
} else {
$this->is_preview = true;
$this->posts[0]->post_date = current_time('mysql');
}
} else if ('future' == $status) {
$this->is_preview = true;
if (!current_user_can('edit_post', $this->posts[0]->ID)) {
$this->posts = array ( );
}
} else {
if (! current_user_can('read_post', $this->posts[0]->ID))
$this->posts = array();
}
}
}
}
update_post_caches($this->posts);
$this->posts = apply_filters('the_posts', $this->posts);
$this->post_count = count($this->posts);
if ($this->post_count > 0) {
$this->post = $this->posts[0];
}
return $this->posts;
}
function next_post() {
$this->current_post++;
$this->post = $this->posts[$this->current_post];
return $this->post;
}
function the_post() {
global $post;
$this->in_the_loop = true;
$post = $this->next_post();
setup_postdata($post);
if ( $this->current_post == 0 ) // loop has just started
do_action('loop_start');
}
function have_posts() {
if ($this->current_post + 1 < $this->post_count) {
return true;
} elseif ($this->current_post + 1 == $this->post_count) {
do_action('loop_end');
// Do some cleaning up after the loop
$this->rewind_posts();
}
$this->in_the_loop = false;
return false;
}
function rewind_posts() {
$this->current_post = -1;
if ($this->post_count > 0) {
$this->post = $this->posts[0];
}
}
function &query($query) {
$this->parse_query($query);
return $this->get_posts();
}
function get_queried_object() {
if (isset($this->queried_object)) {
return $this->queried_object;
}
$this->queried_object = NULL;
$this->queried_object_id = 0;
if ($this->is_category) {
$cat = $this->get('cat');
$category = &get_category($cat);
$this->queried_object = &$category;
$this->queried_object_id = $cat;
} else if ($this->is_single) {
$this->queried_object = $this->post;
$this->queried_object_id = $this->post->ID;
} else if ($this->is_page) {
$this->queried_object = $this->post;
$this->queried_object_id = $this->post->ID;
} else if ($this->is_author) {
$author_id = $this->get('author');
$author = get_userdata($author_id);
$this->queried_object = $author;
$this->queried_object_id = $author_id;
}
return $this->queried_object;
}
function get_queried_object_id() {
$this->get_queried_object();
if (isset($this->queried_object_id)) {
return $this->queried_object_id;
}
return 0;
}
function WP_Query ($query = '') {
if (! empty($query)) {
$this->query($query);
}
}
}
//
// Private helper functions
//
// Setup global post data.
function setup_postdata($post) {
global $id, $postdata, $authordata, $day, $page, $pages, $multipage, $more, $numpages, $wp_query;
global $pagenow;
$id = $post->ID;
$authordata = get_userdata($post->post_author);
$day = mysql2date('d.m.y', $post->post_date);
$currentmonth = mysql2date('m', $post->post_date);
$numpages = 1;
$page = get_query_var('page');
if ( !$page )
$page = 1;
if ( is_single() || is_page() )
$more = 1;
$content = $post->post_content;
if ( preg_match('/<!--nextpage-->/', $content) ) {
if ( $page > 1 )
$more = 1;
$multipage = 1;
$content = str_replace("\n<!--nextpage-->\n", '<!--nextpage-->', $content);
$content = str_replace("\n<!--nextpage-->", '<!--nextpage-->', $content);
$content = str_replace("<!--nextpage-->\n", '<!--nextpage-->', $content);
$pages = explode('<!--nextpage-->', $content);
$numpages = count($pages);
} else {
$pages[0] = $post->post_content;
$multipage = 0;
}
return true;
}
?>