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WordPress/wp-includes/query.php

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<?php
/**
* WordPress Query API
*
* The query API attempts to get which part of WordPress to the user is on. It
* also provides functionality to getting URL query information.
*
* @link http://codex.wordpress.org/The_Loop More information on The Loop.
*
* @package WordPress
* @subpackage Query
*/
/**
* Retrieve variable in the WP_Query class.
*
* @see WP_Query::get()
* @since 1.5.0
* @uses $wp_query
*
* @param string $var The variable key to retrieve.
* @return mixed
*/
function get_query_var($var) {
global $wp_query;
return $wp_query->get($var);
}
/**
* Set query variable.
*
* @see WP_Query::set()
* @since 2.2.0
* @uses $wp_query
*
* @param string $var Query variable key.
* @param mixed $value
* @return null
*/
function set_query_var($var, $value) {
global $wp_query;
return $wp_query->set($var, $value);
}
/**
* Setup The Loop with query parameters.
*
* This will override the current WordPress Loop and shouldn't be used more than
* once. This must not be used within the WordPress Loop.
*
* @since 1.5.0
* @uses $wp_query
*
* @param string $query
* @return array List of posts
*/
function &query_posts($query) {
unset($GLOBALS['wp_query']);
$GLOBALS['wp_query'] =& new WP_Query();
return $GLOBALS['wp_query']->query($query);
}
/**
* Destroy the previous query and setup a new query.
*
* This should be used after {@link query_posts()} and before another {@link
* query_posts()}. This will remove obscure bugs that occur when the previous
* wp_query object is not destroyed properly before another is setup.
*
* @since 2.3.0
* @uses $wp_query
*/
function wp_reset_query() {
unset($GLOBALS['wp_query']);
$GLOBALS['wp_query'] =& $GLOBALS['wp_the_query'];
global $wp_query;
if ( !empty($wp_query->post) ) {
$GLOBALS['post'] = $wp_query->post;
setup_postdata($wp_query->post);
}
}
/*
* Query type checks.
*/
/**
* Whether the current request is in WordPress admin Panel
*
* Does not inform on whether the user is an admin! Use capability checks to
* tell if the user should be accessing a section or not.
*
* @since 1.5.1
*
* @return bool True if inside WordPress administration pages.
*/
function is_admin () {
if ( defined('WP_ADMIN') )
return WP_ADMIN;
return false;
}
/**
* Is query requesting an archive page.
*
* @since 1.5.0
* @uses $wp_query
*
* @return bool True if page is archive.
*/
function is_archive () {
global $wp_query;
return $wp_query->is_archive;
}
/**
* Is query requesting an attachment page.
*
* @since 2.0.0
* @uses $wp_query
*
* @return bool True if page is attachment.
*/
function is_attachment () {
global $wp_query;
return $wp_query->is_attachment;
}
/**
* Is query requesting an author page.
*
* If the $author parameter is specified then the check will be expanded to
* include whether the queried author matches the one given in the parameter.
* You can match against integers and against strings.
*
* If matching against an integer, the ID should be used of the author for the
* test. If the $author is an ID and matches the author page user ID, then
* 'true' will be returned.
*
* If matching against strings, then the test will be matched against both the
* nickname and user nicename and will return true on success.
*
* @since 1.5.0
* @uses $wp_query
*
* @param string|int $author Optional. Is current page this author.
* @return bool True if page is author or $author (if set).
*/
function is_author ($author = '') {
global $wp_query;
if ( !$wp_query->is_author )
return false;
if ( empty($author) )
return true;
$author_obj = $wp_query->get_queried_object();
$author = (array) $author;
if ( in_array( $author_obj->ID, $author ) )
return true;
elseif ( in_array( $author_obj->nickname, $author ) )
return true;
elseif ( in_array( $author_obj->user_nicename, $author ) )
return true;
return false;
}
/**
* Whether current page query contains a category name or given category name.
*
* The category list can contain category IDs, names, or category slugs. If any
* of them are part of the query, then it will return true.
*
* @since 1.5.0
* @uses $wp_query
*
* @param string|array $category Optional.
* @return bool
*/
function is_category ($category = '') {
global $wp_query;
if ( !$wp_query->is_category )
return false;
if ( empty($category) )
return true;
$cat_obj = $wp_query->get_queried_object();
$category = (array) $category;
if ( in_array( $cat_obj->term_id, $category ) )
return true;
elseif ( in_array( $cat_obj->name, $category ) )
return true;
elseif ( in_array( $cat_obj->slug, $category ) )
return true;
return false;
}
/**
* Whether the current page query has the given tag slug or contains tag.
*
* @since 2.3.0
* @uses $wp_query
*
* @param string|array $slug Optional. Single tag or list of tags to check for.
* @return bool
*/
function is_tag( $slug = '' ) {
global $wp_query;
if ( !$wp_query->is_tag )
return false;
if ( empty( $slug ) )
return true;
$tag_obj = $wp_query->get_queried_object();
$slug = (array) $slug;
if ( in_array( $tag_obj->slug, $slug ) )
return true;
return false;
}
/**
* Whether the current page query has the given taxonomy slug or contains taxonomy.
*
* @since 2.5.0
* @uses $wp_query
*
* @param string|array $slug Optional. Slug or slugs to check in current query.
* @return bool
*/
function is_tax( $slug = '' ) {
global $wp_query;
if ( !$wp_query->is_tax )
return false;
if ( empty($slug) )
return true;
$term = $wp_query->get_queried_object();
$slug = (array) $slug;
if ( in_array( $term->slug, $slug ) )
return true;
return false;
}
/**
* Whether the current URL is within the comments popup window.
*
* @since 1.5.0
* @uses $wp_query
*
* @return bool
*/
function is_comments_popup () {
global $wp_query;
return $wp_query->is_comments_popup;
}
/**
* Whether current URL is based on a date.
*
* @since 1.5.0
* @uses $wp_query
*
* @return bool
*/
function is_date () {
global $wp_query;
return $wp_query->is_date;
}
/**
* Whether current blog URL contains a day.
*
* @since 1.5.0
* @uses $wp_query
*
* @return bool
*/
function is_day () {
global $wp_query;
return $wp_query->is_day;
}
/**
* Whether current page query is feed URL.
*
* @since 1.5.0
* @uses $wp_query
*
* @return bool
*/
function is_feed () {
global $wp_query;
return $wp_query->is_feed;
}
/**
* Whether current page query is the front of the site.
*
* @since 2.5.0
* @uses is_home()
* @uses get_option()
*
* @return bool True, if front of site.
*/
function is_front_page () {
// most likely case
if ( 'posts' == get_option('show_on_front') && is_home() )
return true;
elseif ( 'page' == get_option('show_on_front') && get_option('page_on_front') && is_page(get_option('page_on_front')) )
return true;
else
return false;
}
/**
* Whether current page view is the blog homepage.
*
* @since 1.5.0
* @uses $wp_query
*
* @return bool True if blog view homepage.
*/
function is_home () {
global $wp_query;
return $wp_query->is_home;
}
/**
* Whether current page query contains a month.
*
* @since 1.5.0
* @uses $wp_query
*
* @return bool
*/
function is_month () {
global $wp_query;
return $wp_query->is_month;
}
/**
* Whether query is page or contains given page(s).
*
* Calls the function without any parameters will only test whether the current
* query is of the page type. Either a list or a single item can be tested
* against for whether the query is a page and also is the value or one of the
* values in the page parameter.
*
* The parameter can contain the page ID, page title, or page name. The
* parameter can also be an array of those three values.
*
* @since 1.5.0
* @uses $wp_query
*
* @param mixed $page Either page or list of pages to test against.
* @return bool
*/
function is_page ($page = '') {
global $wp_query;
if ( !$wp_query->is_page )
return false;
if ( empty($page) )
return true;
$page_obj = $wp_query->get_queried_object();
$page = (array) $page;
if ( in_array( $page_obj->ID, $page ) )
return true;
elseif ( in_array( $page_obj->post_title, $page ) )
return true;
else if ( in_array( $page_obj->post_name, $page ) )
return true;
return false;
}
/**
* Whether query contains multiple pages for the results.
*
* @since 1.5.0
* @uses $wp_query
*
* @return bool
*/
function is_paged () {
global $wp_query;
return $wp_query->is_paged;
}
/**
* Whether the current page was created by a plugin.
*
* The plugin can set this by using the global $plugin_page and setting it to
* true.
*
* @since 1.5.0
* @global bool $plugin_page Used by plugins to tell the query that current is a plugin page.
*
* @return bool
*/
function is_plugin_page() {
global $plugin_page;
if ( isset($plugin_page) )
return true;
return false;
}
/**
* Whether the current query is preview of post or page.
*
* @since 2.0.0
* @uses $wp_query
*
* @return bool
*/
function is_preview() {
global $wp_query;
return $wp_query->is_preview;
}
/**
* Whether the current query post is robots.
*
* @since 2.1.0
* @uses $wp_query
*
* @return bool
*/
function is_robots() {
global $wp_query;
return $wp_query->is_robots;
}
/**
* Whether current query is the result of a user search.
*
* @since 1.5.0
* @uses $wp_query
*
* @return bool
*/
function is_search () {
global $wp_query;
return $wp_query->is_search;
}
/**
* Whether the current page query is single page.
*
* The parameter can contain the post ID, post title, or post name. The
* parameter can also be an array of those three values.
*
* This applies to other post types, attachments, pages, posts. Just means that
* the current query has only a single object.
*
* @since 1.5.0
* @uses $wp_query
*
* @param mixed $post Either post or list of posts to test against.
* @return bool
*/
function is_single ($post = '') {
global $wp_query;
if ( !$wp_query->is_single )
return false;
if ( empty( $post) )
return true;
$post_obj = $wp_query->get_queried_object();
$post = (array) $post;
if ( in_array( $post_obj->ID, $post ) )
return true;
elseif ( in_array( $post_obj->post_title, $post ) )
return true;
elseif ( in_array( $post_obj->post_name, $post ) )
return true;
return false;
}
/**
* Whether is single post, is a page, or is an attachment.
*
* @since 1.5.0
* @uses $wp_query
*
* @return bool
*/
function is_singular() {
global $wp_query;
return $wp_query->is_singular;
}
/**
* Whether the query contains a time.
*
* @since 1.5.0
* @uses $wp_query
*
* @return bool
*/
function is_time () {
global $wp_query;
return $wp_query->is_time;
}
/**
* Whether the query is a trackback.
*
* @since 1.5.0
* @uses $wp_query
*
* @return bool
*/
function is_trackback () {
global $wp_query;
return $wp_query->is_trackback;
}
/**
* Whether the query contains a year.
*
* @since 1.5.0
* @uses $wp_query
*
* @return bool
*/
function is_year () {
global $wp_query;
return $wp_query->is_year;
}
/**
* Whether current page query is a 404 and no results for WordPress query.
*
* @since 1.5.0
* @uses $wp_query
*
* @return bool True, if nothing is found matching WordPress Query.
*/
function is_404 () {
global $wp_query;
return $wp_query->is_404;
}
/*
* The Loop. Post loop control.
*/
/**
* Whether current WordPress query has results to loop over.
*
* @see WP_Query::have_posts()
* @since 1.5.0
* @uses $wp_query
*
* @return bool
*/
function have_posts() {
global $wp_query;
return $wp_query->have_posts();
}
/**
* Whether the caller is in the Loop.
*
* @since 2.0.0
* @uses $wp_query
*
* @return bool True if caller is within loop, false if loop hasn't started or ended.
*/
function in_the_loop() {
global $wp_query;
return $wp_query->in_the_loop;
}
/**
* Rewind the loop posts.
*
* @see WP_Query::rewind_posts()
* @since 1.5.0
* @uses $wp_query
*
* @return null
*/
function rewind_posts() {
global $wp_query;
return $wp_query->rewind_posts();
}
/**
* Iterate the post index in the loop.
*
* @see WP_Query::the_post()
* @since 1.5.0
* @uses $wp_query
*/
function the_post() {
global $wp_query;
$wp_query->the_post();
}
/*
* Comments loop.
*/
/**
* Whether there are comments to loop over.
*
* @see WP_Query::have_comments()
* @since 2.2.0
* @uses $wp_query
*
* @return bool
*/
function have_comments() {
global $wp_query;
return $wp_query->have_comments();
}
/**
* Iterate comment index in the comment loop.
*
* @see WP_Query::the_comment()
* @since 2.2.0
* @uses $wp_query
*
* @return object
*/
function the_comment() {
global $wp_query;
return $wp_query->the_comment();
}
/*
* WP_Query
*/
/**
* The WordPress Query class.
*
* @link http://codex.wordpress.org/Function_Reference/WP_Query Codex page.
*
* @since 1.5.0
*/
class WP_Query {
/**
* Query string
*
* @since 1.5.0
* @access public
* @var string
*/
var $query;
/**
* Query search variables set by the user.
*
* @since 1.5.0
* @access public
* @var array
*/
var $query_vars = array();
/**
* Holds the data for a single object that is queried.
*
* Holds the contents of a post, page, category, attachment.
*
* @since 1.5.0
* @access public
* @var object|array
*/
var $queried_object;
/**
* The ID of the queried object.
*
* @since 1.5.0
* @access public
* @var int
*/
var $queried_object_id;
/**
* Get post database query.
*
* @since 2.0.1
* @access public
* @var string
*/
var $request;
/**
* List of posts.
*
* @since 1.5.0
* @access public
* @var array
*/
var $posts;
/**
* The amount of posts for the current query.
*
* @since 1.5.0
* @access public
* @var int
*/
var $post_count = 0;
/**
* Index of the current item in the loop.
*
* @since 1.5.0
* @access public
* @var int
*/
var $current_post = -1;
/**
* Whether the loop has started and the caller is in the loop.
*
* @since 2.0.0
* @access public
* @var bool
*/
var $in_the_loop = false;
/**
* The current post ID.
*
* @since 1.5.0
* @access public
* @var int
*/
var $post;
/**
* The list of comments for current post.
*
* @since 2.2.0
* @access public
* @var array
*/
var $comments;
/**
* The amount of comments for the posts.
*
* @since 2.2.0
* @access public
* @var int
*/
var $comment_count = 0;
/**
* The index of the comment in the comment loop.
*
* @since 2.2.0
* @access public
* @var int
*/
var $current_comment = -1;
/**
* Current comment ID.
*
* @since 2.2.0
* @access public
* @var int
*/
var $comment;
/**
* Amount of posts if limit clause was not used.
*
* @since 2.1.0
* @access public
* @var int
*/
var $found_posts = 0;
/**
* The amount of pages.
*
* @since 2.1.0
* @access public
* @var int
*/
var $max_num_pages = 0;
/**
* The amount of comment pages.
*
* @since 2.7.0
* @access public
* @var int
*/
var $max_num_comment_pages = 0;
/**
* Set if query is single post.
*
* @since 1.5.0
* @access public
* @var bool
*/
var $is_single = false;
/**
* Set if query is preview of blog.
*
* @since 2.0.0
* @access public
* @var bool
*/
var $is_preview = false;
/**
* Set if query returns a page.
*
* @since 1.5.0
* @access public
* @var bool
*/
var $is_page = false;
/**
* Set if query is an archive list.
*
* @since 1.5.0
* @access public
* @var bool
*/
var $is_archive = false;
/**
* Set if query is part of a date.
*
* @since 1.5.0
* @access public
* @var bool
*/
var $is_date = false;
/**
* Set if query contains a year.
*
* @since 1.5.0
* @access public
* @var bool
*/
var $is_year = false;
/**
* Set if query contains a month.
*
* @since 1.5.0
* @access public
* @var bool
*/
var $is_month = false;
/**
* Set if query contains a day.
*
* @since 1.5.0
* @access public
* @var bool
*/
var $is_day = false;
/**
* Set if query contains time.
*
* @since 1.5.0
* @access public
* @var bool
*/
var $is_time = false;
/**
* Set if query contains an author.
*
* @since 1.5.0
* @access public
* @var bool
*/
var $is_author = false;
/**
* Set if query contains category.
*
* @since 1.5.0
* @access public
* @var bool
*/
var $is_category = false;
/**
* Set if query contains tag.
*
* @since 2.3.0
* @access public
* @var bool
*/
var $is_tag = false;
/**
* Set if query contains taxonomy.
*
* @since 2.5.0
* @access public
* @var bool
*/
var $is_tax = false;
/**
* Set if query was part of a search result.
*
* @since 1.5.0
* @access public
* @var bool
*/
var $is_search = false;
/**
* Set if query is feed display.
*
* @since 1.5.0
* @access public
* @var bool
*/
var $is_feed = false;
/**
* Set if query is comment feed display.
*
* @since 2.2.0
* @access public
* @var bool
*/
var $is_comment_feed = false;
/**
* Set if query is trackback.
*
* @since 1.5.0
* @access public
* @var bool
*/
var $is_trackback = false;
/**
* Set if query is blog homepage.
*
* @since 1.5.0
* @access public
* @var bool
*/
var $is_home = false;
/**
* Set if query couldn't found anything.
*
* @since 1.5.0
* @access public
* @var bool
*/
var $is_404 = false;
/**
* Set if query is within comments popup window.
*
* @since 1.5.0
* @access public
* @var bool
*/
var $is_comments_popup = false;
/**
* Set if query is part of administration page.
*
* @since 1.5.0
* @access public
* @var bool
*/
var $is_admin = false;
/**
* Set if query is an attachment.
*
* @since 2.0.0
* @access public
* @var bool
*/
var $is_attachment = false;
/**
* Set if is single, is a page, or is an attachment.
*
* @since 2.1.0
* @access public
* @var bool
*/
var $is_singular = false;
/**
* Set if query is for robots.
*
* @since 2.1.0
* @access public
* @var bool
*/
var $is_robots = false;
/**
* Set if query contains posts.
*
* Basically, the homepage if the option isn't set for the static homepage.
*
* @since 2.1.0
* @access public
* @var bool
*/
var $is_posts_page = false;
/**
* Resets query flags to false.
*
* The query flags are what page info WordPress was able to figure out.
*
* @since 2.0.0
* @access private
*/
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_tag = false;
$this->is_tax = false;
$this->is_search = false;
$this->is_feed = false;
$this->is_comment_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_singular = false;
$this->is_robots = false;
$this->is_posts_page = false;
}
/**
* Initiates object properties and sets default values.
*
* @since 1.5.0
* @access public
*/
function init () {
unset($this->posts);
unset($this->query);
$this->query_vars = array();
unset($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.
*
* @since 1.5.0
* @access public
*/
function parse_query_vars() {
$this->parse_query('');
}
/**
* Fills in the query variables, which do not exist within the parameter.
*
* @since 2.1.0
* @access public
*
* @param array $array Defined query variables.
* @return array Complete query variables with undefined ones filled in empty.
*/
function fill_query_vars($array) {
$keys = array(
'error'
, 'm'
, 'p'
, 'post_parent'
, 'subpost'
, 'subpost_id'
, 'attachment'
, 'attachment_id'
, 'name'
, 'hour'
, 'static'
, 'pagename'
, 'page_id'
, 'second'
, 'minute'
, 'hour'
, 'day'
, 'monthnum'
, 'year'
, 'w'
, 'category_name'
, 'tag'
, 'cat'
, 'tag_id'
, 'author_name'
, 'feed'
, 'tb'
, 'paged'
, 'comments_popup'
, 'meta_key'
, 'meta_value'
, 'preview'
);
foreach ($keys as $key) {
if ( !isset($array[$key]))
$array[$key] = '';
}
$array_keys = array('category__in', 'category__not_in', 'category__and', 'post__in', 'post__not_in',
'tag__in', 'tag__not_in', 'tag__and', 'tag_slug__in', 'tag_slug__and');
foreach ( $array_keys as $key ) {
if ( !isset($array[$key]))
$array[$key] = array();
}
return $array;
}
/**
* Parse a query string and set query type booleans.
*
* @since 1.5.0
* @access public
*
* @param string|array $query
*/
function parse_query ($query) {
if ( !empty($query) || !isset($this->query) ) {
$this->init();
if ( is_array($query) )
$this->query_vars = $query;
else
parse_str($query, $this->query_vars);
$this->query = $query;
}
$this->query_vars = $this->fill_query_vars($this->query_vars);
$qv = &$this->query_vars;
if ( ! empty($qv['robots']) )
$this->is_robots = true;
$qv['p'] = absint($qv['p']);
$qv['page_id'] = absint($qv['page_id']);
$qv['year'] = absint($qv['year']);
$qv['monthnum'] = absint($qv['monthnum']);
$qv['day'] = absint($qv['day']);
$qv['w'] = absint($qv['w']);
$qv['m'] = absint($qv['m']);
$qv['cat'] = preg_replace( '|[^0-9,-]|', '', $qv['cat'] ); // comma separated list of positive or negative integers
$qv['pagename'] = trim( $qv['pagename'] );
$qv['name'] = trim( $qv['name'] );
if ( '' !== $qv['hour'] ) $qv['hour'] = absint($qv['hour']);
if ( '' !== $qv['minute'] ) $qv['minute'] = absint($qv['minute']);
if ( '' !== $qv['second'] ) $qv['second'] = absint($qv['second']);
// Compat. Map subpost to attachment.
if ( '' != $qv['subpost'] )
$qv['attachment'] = $qv['subpost'];
if ( '' != $qv['subpost_id'] )
$qv['attachment_id'] = $qv['subpost_id'];
$qv['attachment_id'] = absint($qv['attachment_id']);
if ( ('' != $qv['attachment']) || !empty($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'] || '' != $qv['pagename'] || !empty($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 ( '' !== $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']) {
$this->is_date = true;
}
if ( empty($qv['cat']) || ($qv['cat'] == '0') ) {
$this->is_category = false;
} else {
if (strpos($qv['cat'], '-') !== false) {
$this->is_category = false;
} else {
$this->is_category = true;
}
}
if ( '' != $qv['category_name'] ) {
$this->is_category = true;
}
if ( !is_array($qv['category__in']) || empty($qv['category__in']) ) {
$qv['category__in'] = array();
} else {
$qv['category__in'] = array_map('absint', $qv['category__in']);
$this->is_category = true;
}
if ( !is_array($qv['category__not_in']) || empty($qv['category__not_in']) ) {
$qv['category__not_in'] = array();
} else {
$qv['category__not_in'] = array_map('absint', $qv['category__not_in']);
}
if ( !is_array($qv['category__and']) || empty($qv['category__and']) ) {
$qv['category__and'] = array();
} else {
$qv['category__and'] = array_map('absint', $qv['category__and']);
$this->is_category = true;
}
if ( '' != $qv['tag'] )
$this->is_tag = true;
$qv['tag_id'] = absint($qv['tag_id']);
if ( !empty($qv['tag_id']) )
$this->is_tag = true;
if ( !is_array($qv['tag__in']) || empty($qv['tag__in']) ) {
$qv['tag__in'] = array();
} else {
$qv['tag__in'] = array_map('absint', $qv['tag__in']);
$this->is_tag = true;
}
if ( !is_array($qv['tag__not_in']) || empty($qv['tag__not_in']) ) {
$qv['tag__not_in'] = array();
} else {
$qv['tag__not_in'] = array_map('absint', $qv['tag__not_in']);
}
if ( !is_array($qv['tag__and']) || empty($qv['tag__and']) ) {
$qv['tag__and'] = array();
} else {
$qv['tag__and'] = array_map('absint', $qv['tag__and']);
$this->is_category = true;
}
if ( !is_array($qv['tag_slug__in']) || empty($qv['tag_slug__in']) ) {
$qv['tag_slug__in'] = array();
} else {
$qv['tag_slug__in'] = array_map('sanitize_title', $qv['tag_slug__in']);
$this->is_tag = true;
}
if ( !is_array($qv['tag_slug__and']) || empty($qv['tag_slug__and']) ) {
$qv['tag_slug__and'] = array();
} else {
$qv['tag_slug__and'] = array_map('sanitize_title', $qv['tag_slug__and']);
$this->is_tag = true;
}
if ( empty($qv['taxonomy']) || empty($qv['term']) ) {
$this->is_tax = false;
foreach ( $GLOBALS['wp_taxonomies'] as $t ) {
if ( isset($t->query_var) && isset($qv[$t->query_var]) && '' != $qv[$t->query_var] ) {
$this->is_tax = true;
break;
}
}
} else {
$this->is_tax = true;
}
if ( empty($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_tag || $this->is_tax) )
$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 ( is_admin() )
$this->is_admin = true;
if ( false !== strpos($qv['feed'], 'comments-') ) {
$qv['feed'] = str_replace('comments-', '', $qv['feed']);
$qv['withcomments'] = 1;
}
$this->is_singular = $this->is_single || $this->is_page || $this->is_attachment;
if ( $this->is_feed && ( !empty($qv['withcomments']) || ( empty($qv['withoutcomments']) && $this->is_singular ) ) )
$this->is_comment_feed = true;
if ( !( $this->is_singular || $this->is_archive || $this->is_search || $this->is_feed || $this->is_trackback || $this->is_404 || $this->is_admin || $this->is_comments_popup ) )
$this->is_home = true;
// Correct is_* for page_on_front and page_for_posts
if ( $this->is_home && ( empty($this->query) || $qv['preview'] == 'true' ) && 'page' == get_option('show_on_front') && get_option('page_on_front') ) {
$this->is_page = true;
$this->is_home = false;
$qv['page_id'] = get_option('page_on_front');
}
if ( '' != $qv['pagename'] ) {
$this->queried_object =& get_page_by_path($qv['pagename']);
if ( !empty($this->queried_object) )
$this->queried_object_id = (int) $this->queried_object->ID;
else
unset($this->queried_object);
if ( 'page' == get_option('show_on_front') && isset($this->queried_object_id) && $this->queried_object_id == get_option('page_for_posts') ) {
$this->is_page = false;
$this->is_home = true;
$this->is_posts_page = true;
}
}
if ( $qv['page_id'] ) {
if ( 'page' == get_option('show_on_front') && $qv['page_id'] == get_option('page_for_posts') ) {
$this->is_page = false;
$this->is_home = true;
$this->is_posts_page = true;
}
}
if ( !empty($qv['post_type']) )
$qv['post_type'] = sanitize_user($qv['post_type'], true);
if ( !empty($qv['post_status']) )
$qv['post_status'] = preg_replace('|[^a-z0-9_,-]|', '', $qv['post_status']);
if ( $this->is_posts_page && ( ! isset($qv['withcomments']) || ! $qv['withcomments'] ) )
$this->is_comment_feed = false;
$this->is_singular = $this->is_single || $this->is_page || $this->is_attachment;
// Done correcting is_* for page_on_front and page_for_posts
if ('404' == $qv['error'])
$this->set_404();
if ( !empty($query) )
do_action_ref_array('parse_query', array(&$this));
}
/**
* Sets the 404 property and saves whether query is feed.
*
* @since 2.0.0
* @access public
*/
function set_404() {
$is_feed = $this->is_feed;
$this->init_query_flags();
$this->is_404 = true;
$this->is_feed = $is_feed;
}
/**
* Retrieve query variable.
*
* @since 1.5.0
* @access public
*
* @param string $query_var Query variable key.
* @return mixed
*/
function get($query_var) {
if (isset($this->query_vars[$query_var])) {
return $this->query_vars[$query_var];
}
return '';
}
/**
* Set query variable.
*
* @since 1.5.0
* @access public
*
* @param string $query_var Query variable key.
* @param mixed $value Query variable value.
*/
function set($query_var, $value) {
$this->query_vars[$query_var] = $value;
}
/**
* Retrieve the posts based on query variables.
*
* There are a few filters and actions that can be used to modify the post
* database query.
*
* @since 1.5.0
* @access public
* @uses do_action_ref_array() Calls 'pre_get_posts' hook before retrieving posts.
*
* @return array List of posts.
*/
function &get_posts() {
global $wpdb, $user_ID;
do_action_ref_array('pre_get_posts', array(&$this));
// Shorthand.
$q = &$this->query_vars;
$q = $this->fill_query_vars($q);
// First let's clear some variables
$distinct = '';
$whichcat = '';
$whichauthor = '';
$whichmimetype = '';
$where = '';
$limits = '';
$join = '';
$search = '';
$groupby = '';
$fields = "$wpdb->posts.*";
$post_status_join = false;
$page = 1;
if ( !isset($q['caller_get_posts']) )
$q['caller_get_posts'] = false;
if ( !isset($q['suppress_filters']) )
$q['suppress_filters'] = false;
if ( !isset($q['post_type']) ) {
if ( $this->is_search )
$q['post_type'] = 'any';
else
$q['post_type'] = 'post';
}
$post_type = $q['post_type'];
if ( !isset($q['posts_per_page']) || $q['posts_per_page'] == 0 )
$q['posts_per_page'] = get_option('posts_per_page');
if ( isset($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_option('posts_per_rss');
$q['nopaging'] = false;
}
$q['posts_per_page'] = (int) $q['posts_per_page'];
if ( $q['posts_per_page'] < -1 )
$q['posts_per_page'] = abs($q['posts_per_page']);
else if ( $q['posts_per_page'] == 0 )
$q['posts_per_page'] = 1;
if ( !isset($q['comments_per_page']) || $q['comments_per_page'] == 0 )
$q['comments_per_page'] = get_option('comments_per_page');
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'], '/');
$q['page'] = absint($q['page']);
}
// If a month is specified in the querystring, load that month
if ( $q['m'] ) {
$q['m'] = '' . preg_replace('|[^0-9]|', '', $q['m']);
$where .= " AND YEAR($wpdb->posts.post_date)=" . substr($q['m'], 0, 4);
if (strlen($q['m'])>5)
$where .= " AND MONTH($wpdb->posts.post_date)=" . substr($q['m'], 4, 2);
if (strlen($q['m'])>7)
$where .= " AND DAYOFMONTH($wpdb->posts.post_date)=" . substr($q['m'], 6, 2);
if (strlen($q['m'])>9)
$where .= " AND HOUR($wpdb->posts.post_date)=" . substr($q['m'], 8, 2);
if (strlen($q['m'])>11)
$where .= " AND MINUTE($wpdb->posts.post_date)=" . substr($q['m'], 10, 2);
if (strlen($q['m'])>13)
$where .= " AND SECOND($wpdb->posts.post_date)=" . substr($q['m'], 12, 2);
}
if ( '' !== $q['hour'] )
$where .= " AND HOUR($wpdb->posts.post_date)='" . $q['hour'] . "'";
if ( '' !== $q['minute'] )
$where .= " AND MINUTE($wpdb->posts.post_date)='" . $q['minute'] . "'";
if ( '' !== $q['second'] )
$where .= " AND SECOND($wpdb->posts.post_date)='" . $q['second'] . "'";
if ( $q['year'] )
$where .= " AND YEAR($wpdb->posts.post_date)='" . $q['year'] . "'";
if ( $q['monthnum'] )
$where .= " AND MONTH($wpdb->posts.post_date)='" . $q['monthnum'] . "'";
if ( $q['day'] )
$where .= " AND DAYOFMONTH($wpdb->posts.post_date)='" . $q['day'] . "'";
if ('' != $q['name']) {
$q['name'] = sanitize_title($q['name']);
$where .= " AND $wpdb->posts.post_name = '" . $q['name'] . "'";
} else if ('' != $q['pagename']) {
if ( isset($this->queried_object_id) )
$reqpage = $this->queried_object_id;
else {
$reqpage = get_page_by_path($q['pagename']);
if ( !empty($reqpage) )
$reqpage = $reqpage->ID;
else
$reqpage = 0;
}
$page_for_posts = get_option('page_for_posts');
if ( ('page' != get_option('show_on_front') ) || empty($page_for_posts) || ( $reqpage != $page_for_posts ) ) {
$q['pagename'] = str_replace('%2F', '/', urlencode(urldecode($q['pagename'])));
$page_paths = '/' . trim($q['pagename'], '/');
$q['pagename'] = sanitize_title(basename($page_paths));
$q['name'] = $q['pagename'];
$where .= " AND ($wpdb->posts.ID = '$reqpage')";
$reqpage_obj = get_page($reqpage);
if ( 'attachment' == $reqpage_obj->post_type ) {
$this->is_attachment = true;
$this->is_page = true;
$q['attachment_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 $wpdb->posts.post_name = '" . $q['attachment'] . "'";
}
if ( $q['w'] )
$where .= " AND WEEK($wpdb->posts.post_date, 1)='" . $q['w'] . "'";
if ( intval($q['comments_popup']) )
$q['p'] = absint($q['comments_popup']);
// If an attachment is requested by number, let it supercede any post number.
if ( $q['attachment_id'] )
$q['p'] = absint($q['attachment_id']);
// If a post number is specified, load that post
if ( $q['p'] ) {
$where .= " AND {$wpdb->posts}.ID = " . $q['p'];
} elseif ( $q['post__in'] ) {
$post__in = implode(',', array_map( 'absint', $q['post__in'] ));
$where .= " AND {$wpdb->posts}.ID IN ($post__in)";
} elseif ( $q['post__not_in'] ) {
$post__not_in = implode(',', array_map( 'absint', $q['post__not_in'] ));
$where .= " AND {$wpdb->posts}.ID NOT IN ($post__not_in)";
}
if ( $q['post_parent'] )
$where .= $wpdb->prepare( " AND $wpdb->posts.post_parent = %d ", $q['post_parent'] );
if ( $q['page_id'] ) {
if ( ('page' != get_option('show_on_front') ) || ( $q['page_id'] != get_option('page_for_posts') ) ) {
$q['p'] = $q['page_id'];
$where = " AND {$wpdb->posts}.ID = " . $q['page_id'];
}
}
// If a search pattern is specified, load the posts that match
if ( !empty($q['s']) ) {
// added slashes screw with quote grouping when done early, so done later
$q['s'] = stripslashes($q['s']);
if ($q['sentence']) {
$q['search_terms'] = array($q['s']);
} else {
preg_match_all('/".*?("|$)|((?<=[\\s",+])|^)[^\\s",+]+/', $q[s], $matches);
$q['search_terms'] = array_map(create_function('$a', 'return trim($a, "\\"\'\\n\\r ");'), $matches[0]);
}
$n = ($q['exact']) ? '' : '%';
$searchand = '';
foreach( (array) $q['search_terms'] as $term) {
$term = addslashes_gpc($term);
$search .= "{$searchand}(($wpdb->posts.post_title LIKE '{$n}{$term}{$n}') OR ($wpdb->posts.post_content LIKE '{$n}{$term}{$n}'))";
$searchand = ' AND ';
}
$term = $wpdb->escape($q['s']);
if (!$q['sentence'] && count($q['search_terms']) > 1 && $q['search_terms'][0] != $q['s'] )
$search .= " OR ($wpdb->posts.post_title LIKE '{$n}{$term}{$n}') OR ($wpdb->posts.post_content LIKE '{$n}{$term}{$n}')";
if ( !empty($search) )
$search = " AND ({$search}) ";
}
// Category stuff
if ( empty($q['cat']) || ($q['cat'] == '0') ||
// Bypass cat checks if fetching specific posts
$this->is_singular ) {
$whichcat = '';
} else {
$q['cat'] = ''.urldecode($q['cat']).'';
$q['cat'] = addslashes_gpc($q['cat']);
$cat_array = preg_split('/[,\s]+/', $q['cat']);
$q['cat'] = '';
$req_cats = array();
foreach ( (array) $cat_array as $cat ) {
$cat = intval($cat);
$req_cats[] = $cat;
$in = ($cat > 0);
$cat = abs($cat);
if ( $in ) {
$q['category__in'][] = $cat;
$q['category__in'] = array_merge($q['category__in'], get_term_children($cat, 'category'));
} else {
$q['category__not_in'][] = $cat;
$q['category__not_in'] = array_merge($q['category__not_in'], get_term_children($cat, 'category'));
}
}
$q['cat'] = implode(',', $req_cats);
}
if ( !empty($q['category__in']) ) {
$groupby = "{$wpdb->posts}.ID";
}
if ( !empty($q['category__in']) ) {
$join = " INNER JOIN $wpdb->term_relationships ON ($wpdb->posts.ID = $wpdb->term_relationships.object_id) INNER JOIN $wpdb->term_taxonomy ON ($wpdb->term_relationships.term_taxonomy_id = $wpdb->term_taxonomy.term_taxonomy_id) ";
$whichcat .= " AND $wpdb->term_taxonomy.taxonomy = 'category' ";
$include_cats = "'" . implode("', '", $q['category__in']) . "'";
$whichcat .= " AND $wpdb->term_taxonomy.term_id IN ($include_cats) ";
}
if ( !empty($q['category__not_in']) ) {
if ( $wpdb->has_cap( 'subqueries' ) ) {
$cat_string = "'" . implode("', '", $q['category__not_in']) . "'";
$whichcat .= " AND $wpdb->posts.ID NOT IN ( SELECT tr.object_id FROM $wpdb->term_relationships AS tr INNER JOIN $wpdb->term_taxonomy AS tt ON tr.term_taxonomy_id = tt.term_taxonomy_id WHERE tt.taxonomy = 'category' AND tt.term_id IN ($cat_string) )";
} else {
$ids = get_objects_in_term($q['category__not_in'], 'category');
if ( is_wp_error( $ids ) )
$ids = array();
if ( is_array($ids) && count($ids > 0) ) {
$out_posts = "'" . implode("', '", $ids) . "'";
$whichcat .= " AND $wpdb->posts.ID NOT IN ($out_posts)";
}
}
}
// Category stuff for nice URLs
if ( '' != $q['category_name'] && !$this->is_singular ) {
$reqcat = get_category_by_path($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);
$cat_path = '';
foreach ( (array) $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->term_id;
else
$reqcat = 0;
$q['cat'] = $reqcat;
$join = " INNER JOIN $wpdb->term_relationships ON ($wpdb->posts.ID = $wpdb->term_relationships.object_id) INNER JOIN $wpdb->term_taxonomy ON ($wpdb->term_relationships.term_taxonomy_id = $wpdb->term_taxonomy.term_taxonomy_id) ";
$whichcat = " AND $wpdb->term_taxonomy.taxonomy = 'category' ";
$in_cats = array($q['cat']);
$in_cats = array_merge($in_cats, get_term_children($q['cat'], 'category'));
$in_cats = "'" . implode("', '", $in_cats) . "'";
$whichcat .= "AND $wpdb->term_taxonomy.term_id IN ($in_cats)";
$groupby = "{$wpdb->posts}.ID";
}
// Tags
if ( '' != $q['tag'] ) {
if ( strpos($q['tag'], ',') !== false ) {
$tags = preg_split('/[,\s]+/', $q['tag']);
foreach ( (array) $tags as $tag ) {
$tag = sanitize_term_field('slug', $tag, 0, 'post_tag', 'db');
$q['tag_slug__in'][] = $tag;
}
} else if ( preg_match('/[+\s]+/', $q['tag']) ) {
$tags = preg_split('/[+\s]+/', $q['tag']);
foreach ( (array) $tags as $tag ) {
$tag = sanitize_term_field('slug', $tag, 0, 'post_tag', 'db');
$q['tag_slug__and'][] = $tag;
}
} else {
$q['tag'] = sanitize_term_field('slug', $q['tag'], 0, 'post_tag', 'db');
$q['tag_slug__in'][] = $q['tag'];
}
}
if ( !empty($q['tag__in']) || !empty($q['tag_slug__in']) ) {
$groupby = "{$wpdb->posts}.ID";
}
if ( !empty($q['tag__in']) ) {
$join = " INNER JOIN $wpdb->term_relationships ON ($wpdb->posts.ID = $wpdb->term_relationships.object_id) INNER JOIN $wpdb->term_taxonomy ON ($wpdb->term_relationships.term_taxonomy_id = $wpdb->term_taxonomy.term_taxonomy_id) ";
$whichcat .= " AND $wpdb->term_taxonomy.taxonomy = 'post_tag' ";
$include_tags = "'" . implode("', '", $q['tag__in']) . "'";
$whichcat .= " AND $wpdb->term_taxonomy.term_id IN ($include_tags) ";
$reqtag = is_term( $q['tag__in'][0], 'post_tag' );
if ( !empty($reqtag) )
$q['tag_id'] = $reqtag['term_id'];
}
if ( !empty($q['tag_slug__in']) ) {
$join = " INNER JOIN $wpdb->term_relationships ON ($wpdb->posts.ID = $wpdb->term_relationships.object_id) INNER JOIN $wpdb->term_taxonomy ON ($wpdb->term_relationships.term_taxonomy_id = $wpdb->term_taxonomy.term_taxonomy_id) INNER JOIN $wpdb->terms ON ($wpdb->term_taxonomy.term_id = $wpdb->terms.term_id) ";
$whichcat .= " AND $wpdb->term_taxonomy.taxonomy = 'post_tag' ";
$include_tags = "'" . implode("', '", $q['tag_slug__in']) . "'";
$whichcat .= " AND $wpdb->terms.slug IN ($include_tags) ";
$reqtag = get_term_by( 'slug', $q['tag_slug__in'][0], 'post_tag' );
if ( !empty($reqtag) )
$q['tag_id'] = $reqtag->term_id;
}
if ( !empty($q['tag__not_in']) ) {
if ( $wpdb->has_cap( 'subqueries' ) ) {
$tag_string = "'" . implode("', '", $q['tag__not_in']) . "'";
$whichcat .= " AND $wpdb->posts.ID NOT IN ( SELECT tr.object_id FROM $wpdb->term_relationships AS tr INNER JOIN $wpdb->term_taxonomy AS tt ON tr.term_taxonomy_id = tt.term_taxonomy_id WHERE tt.taxonomy = 'post_tag' AND tt.term_id IN ($tag_string) )";
} else {
$ids = get_objects_in_term($q['tag__not_in'], 'post_tag');
if ( is_wp_error( $ids ) )
$ids = array();
if ( is_array($ids) && count($ids > 0) ) {
$out_posts = "'" . implode("', '", $ids) . "'";
$whichcat .= " AND $wpdb->posts.ID NOT IN ($out_posts)";
}
}
}
// Tag and slug intersections.
$intersections = array('category__and' => 'category', 'tag__and' => 'post_tag', 'tag_slug__and' => 'post_tag');
foreach ($intersections as $item => $taxonomy) {
if ( empty($q[$item]) ) continue;
if ( $item != 'category__and' ) {
$reqtag = is_term( $q[$item][0], 'post_tag' );
if ( !empty($reqtag) )
$q['tag_id'] = $reqtag['term_id'];
}
$taxonomy_field = $item == 'tag_slug__and' ? 'slug' : 'term_id';
$q[$item] = array_unique($q[$item]);
$tsql = "SELECT p.ID FROM $wpdb->posts p INNER JOIN $wpdb->term_relationships tr ON (p.ID = tr.object_id) INNER JOIN $wpdb->term_taxonomy tt ON (tr.term_taxonomy_id = tt.term_taxonomy_id) INNER JOIN $wpdb->terms t ON (tt.term_id = t.term_id)";
$tsql .= " WHERE tt.taxonomy = '$taxonomy' AND t.$taxonomy_field IN ('" . implode("', '", $q[$item]) . "')";
$tsql .= " GROUP BY p.ID HAVING count(p.ID) = " . count($q[$item]);
$post_ids = $wpdb->get_col($tsql);
if ( count($post_ids) )
$whichcat .= " AND $wpdb->posts.ID IN (" . implode(', ', $post_ids) . ") ";
else {
$whichcat = " AND 0 = 1";
break;
}
}
// Taxonomies
if ( $this->is_tax ) {
if ( '' != $q['taxonomy'] ) {
$taxonomy = $q['taxonomy'];
$tt[$taxonomy] = $q['term'];
$terms = get_terms($q['taxonomy'], array('slug'=>$q['term']));
} else {
foreach ( $GLOBALS['wp_taxonomies'] as $taxonomy => $t ) {
if ( isset($t->query_var) && '' != $q[$t->query_var] ) {
$terms = get_terms($taxonomy, array('slug'=>$q[$t->query_var]));
if ( !is_wp_error($terms) )
break;
}
}
}
if ( is_wp_error($terms) || empty($terms) ) {
$whichcat = " AND 0 ";
} else {
foreach ( $terms as $term )
$term_ids[] = $term->term_id;
$post_ids = get_objects_in_term($term_ids, $taxonomy);
if ( !is_wp_error($post_ids) && count($post_ids) ) {
$whichcat .= " AND $wpdb->posts.ID IN (" . implode(', ', $post_ids) . ") ";
$post_type = 'any';
$q['post_status'] = 'publish';
$post_status_join = true;
} else {
$whichcat = " AND 0 ";
}
}
}
// Author/user stuff
if ( empty($q['author']) || ($q['author'] == '0') ) {
$whichauthor='';
} else {
$q['author'] = ''.urldecode($q['author']).'';
$q['author'] = addslashes_gpc($q['author']);
if (strpos($q['author'], '-') !== false) {
$eq = '!=';
$andor = 'AND';
$q['author'] = explode('-', $q['author']);
$q['author'] = '' . absint($q['author'][1]);
} else {
$eq = '=';
$andor = 'OR';
}
$author_array = preg_split('/[,\s]+/', $q['author']);
$whichauthor .= " AND ($wpdb->posts.post_author ".$eq.' '.absint($author_array[0]);
for ($i = 1; $i < (count($author_array)); $i = $i + 1) {
$whichauthor .= ' '.$andor." $wpdb->posts.post_author ".$eq.' '.absint($author_array[$i]);
}
$whichauthor .= ')';
}
// Author stuff for nice URLs
if ('' != $q['author_name']) {
if (strpos($q['author_name'], '/') !== false) {
$q['author_name'] = explode('/',$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']."'");
$whichauthor .= " AND ($wpdb->posts.post_author = ".absint($q['author']).')';
}
// MIME-Type stuff for attachment browsing
if ( isset($q['post_mime_type']) && '' != $q['post_mime_type'] )
$whichmimetype = wp_post_mime_type_where($q['post_mime_type']);
$where .= $search.$whichcat.$whichauthor.$whichmimetype;
if ( empty($q['order']) || ((strtoupper($q['order']) != 'ASC') && (strtoupper($q['order']) != 'DESC')) )
$q['order'] = 'DESC';
// Order by
if ( empty($q['orderby']) ) {
$q['orderby'] = "$wpdb->posts.post_date ".$q['order'];
} else {
// Used to filter values
$allowed_keys = array('author', 'date', 'category', 'title', 'modified', 'menu_order', 'parent', 'ID', 'rand');
if ( !empty($q['meta_key']) ) {
$allowed_keys[] = $q['meta_key'];
$allowed_keys[] = 'meta_value';
}
$q['orderby'] = urldecode($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];
switch ($orderby) {
case 'menu_order':
break;
case 'ID':
$orderby = "$wpdb->posts.ID";
break;
case 'rand':
$orderby = 'RAND()';
break;
case $q['meta_key']:
case 'meta_value':
$orderby = "$wpdb->postmeta.meta_value";
break;
default:
$orderby = "$wpdb->posts.post_" . $orderby;
}
if ( in_array($orderby_array[$i], $allowed_keys) )
$q['orderby'] .= (($i == 0) ? '' : ',') . $orderby;
}
// append ASC or DESC at the end
if ( !empty($q['orderby']))
$q['orderby'] .= " {$q['order']}";
if ( empty($q['orderby']) )
$q['orderby'] = "$wpdb->posts.post_date ".$q['order'];
}
if ( $this->is_attachment ) {
$where .= " AND $wpdb->posts.post_type = 'attachment'";
} elseif ($this->is_page) {
$where .= " AND $wpdb->posts.post_type = 'page'";
} elseif ($this->is_single) {
$where .= " AND $wpdb->posts.post_type = 'post'";
} elseif ( 'any' == $post_type ) {
$where .= '';
} else {
$where .= " AND $wpdb->posts.post_type = '$post_type'";
}
if ( isset($q['post_status']) && '' != $q['post_status'] ) {
$statuswheres = array();
$q_status = explode(',', $q['post_status']);
$r_status = array();
$p_status = array();
if ( in_array( 'draft' , $q_status ) )
$r_status[] = "$wpdb->posts.post_status = 'draft'";
if ( in_array( 'pending', $q_status ) )
$r_status[] = "$wpdb->posts.post_status = 'pending'";
if ( in_array( 'future' , $q_status ) )
$r_status[] = "$wpdb->posts.post_status = 'future'";
if ( in_array( 'inherit' , $q_status ) )
$r_status[] = "$wpdb->posts.post_status = 'inherit'";
if ( in_array( 'private', $q_status ) )
$p_status[] = "$wpdb->posts.post_status = 'private'";
if ( in_array( 'publish', $q_status ) )
$r_status[] = "$wpdb->posts.post_status = 'publish'";
if ( empty($q['perm'] ) || 'readable' != $q['perm'] ) {
$r_status = array_merge($r_status, $p_status);
unset($p_status);
}
if ( !empty($r_status) ) {
if ( !empty($q['perm'] ) && 'editable' == $q['perm'] && !current_user_can("edit_others_{$post_type}s") )
$statuswheres[] = "($wpdb->posts.post_author = $user_ID " . "AND (" . join( ' OR ', $r_status ) . "))";
else
$statuswheres[] = "(" . join( ' OR ', $r_status ) . ")";
}
if ( !empty($p_status) ) {
if ( !empty($q['perm'] ) && 'readable' == $q['perm'] && !current_user_can("read_private_{$post_type}s") )
$statuswheres[] = "($wpdb->posts.post_author = $user_ID " . "AND (" . join( ' OR ', $p_status ) . "))";
else
$statuswheres[] = "(" . join( ' OR ', $p_status ) . ")";
}
if ( $post_status_join ) {
$join .= " LEFT JOIN $wpdb->posts AS p2 ON ($wpdb->posts.post_parent = p2.ID) ";
foreach ( $statuswheres as $index => $statuswhere )
$statuswheres[$index] = "($statuswhere OR ($wpdb->posts.post_status = 'inherit' AND " . str_replace($wpdb->posts, 'p2', $statuswhere) . "))";
}
foreach ( $statuswheres as $statuswhere )
$where .= " AND $statuswhere";
} elseif ( !$this->is_singular ) {
$where .= " AND ($wpdb->posts.post_status = 'publish'";
if ( is_admin() )
$where .= " OR $wpdb->posts.post_status = 'future' OR $wpdb->posts.post_status = 'draft' OR $wpdb->posts.post_status = 'pending'";
if ( is_user_logged_in() ) {
$where .= current_user_can( "read_private_{$post_type}s" ) ? " OR $wpdb->posts.post_status = 'private'" : " OR $wpdb->posts.post_author = $user_ID AND $wpdb->posts.post_status = 'private'";
}
$where .= ')';
}
// postmeta queries
if ( ! empty($q['meta_key']) || ! empty($q['meta_value']) )
$join .= " LEFT JOIN $wpdb->postmeta ON ($wpdb->posts.ID = $wpdb->postmeta.post_id) ";
if ( ! empty($q['meta_key']) )
$where .= $wpdb->prepare(" AND $wpdb->postmeta.meta_key = %s ", $q['meta_key']);
if ( ! empty($q['meta_value']) ) {
if ( ! isset($q['meta_compare']) || empty($q['meta_compare']) || ! in_array($q['meta_compare'], array('=', '!=', '>', '>=', '<', '<=')) )
$q['meta_compare'] = '=';
$where .= $wpdb->prepare("AND $wpdb->postmeta.meta_value {$q['meta_compare']} %s ", $q['meta_value']);
}
// Apply filters on where and join prior to paging so that any
// manipulations to them are reflected in the paging by day queries.
if ( !$q['suppress_filters'] ) {
$where = apply_filters('posts_where', $where);
$join = apply_filters('posts_join', $join);
}
// Paging
if ( empty($q['nopaging']) && !$this->is_singular ) {
$page = absint($q['paged']);
if (empty($page)) {
$page = 1;
}
if ( empty($q['offset']) ) {
$pgstrt = '';
$pgstrt = ($page - 1) * $q['posts_per_page'] . ', ';
$limits = 'LIMIT '.$pgstrt.$q['posts_per_page'];
} else { // we're ignoring $page and using 'offset'
$q['offset'] = absint($q['offset']);
$pgstrt = $q['offset'] . ', ';
$limits = 'LIMIT ' . $pgstrt . $q['posts_per_page'];
}
}
// Comments feeds
if ( $this->is_comment_feed && ( $this->is_archive || $this->is_search || !$this->is_singular ) ) {
if ( $this->is_archive || $this->is_search ) {
$cjoin = "LEFT JOIN $wpdb->posts ON ($wpdb->comments.comment_post_ID = $wpdb->posts.ID) $join ";
$cwhere = "WHERE comment_approved = '1' $where";
$cgroupby = "GROUP BY $wpdb->comments.comment_id";
} else { // Other non singular e.g. front
$cjoin = "LEFT JOIN $wpdb->posts ON ( $wpdb->comments.comment_post_ID = $wpdb->posts.ID )";
$cwhere = "WHERE post_status = 'publish' AND comment_approved = '1'";
$cgroupby = '';
}
if ( !$q['suppress_filters'] ) {
$cjoin = apply_filters('comment_feed_join', $cjoin);
$cwhere = apply_filters('comment_feed_where', $cwhere);
$cgroupby = apply_filters('comment_feed_groupby', $cgroupby);
}
$this->comments = (array) $wpdb->get_results("SELECT $distinct $wpdb->comments.* FROM $wpdb->comments $cjoin $cwhere $cgroupby ORDER BY comment_date_gmt DESC LIMIT " . get_option('posts_per_rss'));
$this->comment_count = count($this->comments);
$post_ids = array();
foreach ($this->comments as $comment)
$post_ids[] = (int) $comment->comment_post_ID;
$post_ids = join(',', $post_ids);
$join = '';
if ( $post_ids )
$where = "AND $wpdb->posts.ID IN ($post_ids) ";
else
$where = "AND 0";
}
$orderby = $q['orderby'];
// Apply post-paging filters on where and join. Only plugins that
// manipulate paging queries should use these hooks.
if ( !$q['suppress_filters'] ) {
$where = apply_filters('posts_where_paged', $where);
$groupby = apply_filters('posts_groupby', $groupby);
$join = apply_filters('posts_join_paged', $join);
$orderby = apply_filters('posts_orderby', $orderby);
$distinct = apply_filters('posts_distinct', $distinct);
$limits = apply_filters( 'post_limits', $limits );
if ( ! empty($q['meta_key']) )
$fields = "$fields, $wpdb->postmeta.meta_value";
$fields = apply_filters('posts_fields', $fields);
}
// Announce current selection parameters. For use by caching plugins.
do_action( 'posts_selection', $where . $groupby . $orderby . $limits . $join );
// Filter again for the benefit of caching plugins. Regular plugins should use the hooks above.
if ( !$q['suppress_filters'] ) {
$where = apply_filters('posts_where_request', $where);
$groupby = apply_filters('posts_groupby_request', $groupby);
$join = apply_filters('posts_join_request', $join);
$orderby = apply_filters('posts_orderby_request', $orderby);
$distinct = apply_filters('posts_distinct_request', $distinct);
$fields = apply_filters('posts_fields_request', $fields);
$limits = apply_filters( 'post_limits_request', $limits );
}
if ( ! empty($groupby) )
$groupby = 'GROUP BY ' . $groupby;
if ( !empty( $orderby ) )
$orderby = 'ORDER BY ' . $orderby;
$found_rows = '';
if ( !empty($limits) )
$found_rows = 'SQL_CALC_FOUND_ROWS';
$this->request = " SELECT $found_rows $distinct $fields FROM $wpdb->posts $join WHERE 1=1 $where $groupby $orderby $limits";
if ( !$q['suppress_filters'] )
$this->request = apply_filters('posts_request', $this->request);
$this->posts = $wpdb->get_results($this->request);
// Raw results filter. Prior to status checks.
if ( !$q['suppress_filters'] )
$this->posts = apply_filters('posts_results', $this->posts);
if ( !empty($this->posts) && $this->is_comment_feed && $this->is_singular ) {
$cjoin = apply_filters('comment_feed_join', '');
$cwhere = apply_filters('comment_feed_where', "WHERE comment_post_ID = '{$this->posts[0]->ID}' AND comment_approved = '1'");
$comments_request = "SELECT $wpdb->comments.* FROM $wpdb->comments $cjoin $cwhere ORDER BY comment_date_gmt DESC LIMIT " . get_option('posts_per_rss');
$this->comments = $wpdb->get_results($comments_request);
$this->comment_count = count($this->comments);
}
if ( !empty($limits) ) {
$found_posts_query = apply_filters( 'found_posts_query', 'SELECT FOUND_ROWS()' );
$this->found_posts = $wpdb->get_var( $found_posts_query );
$this->found_posts = apply_filters( 'found_posts', $this->found_posts );
$this->max_num_pages = ceil($this->found_posts / $q['posts_per_page']);
}
// Check post status to determine if post should be displayed.
if ( !empty($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.
$this->posts = array();
} else {
if (in_array($status, array('draft', 'pending')) ) {
// 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();
}
}
}
}
// Put sticky posts at the top of the posts array
$sticky_posts = get_option('sticky_posts');
if ( $this->is_home && $page <= 1 && !empty($sticky_posts) && !$q['caller_get_posts'] ) {
$num_posts = count($this->posts);
$sticky_offset = 0;
// Loop over posts and relocate stickies to the front.
for ( $i = 0; $i < $num_posts; $i++ ) {
if ( in_array($this->posts[$i]->ID, $sticky_posts) ) {
$sticky_post = $this->posts[$i];
// Remove sticky from current position
array_splice($this->posts, $i, 1);
// Move to front, after other stickies
array_splice($this->posts, $sticky_offset, 0, array($sticky_post));
// Increment the sticky offset. The next sticky will be placed at this offset.
$sticky_offset++;
// Remove post from sticky posts array
$offset = array_search($sticky_post->ID, $sticky_posts);
array_splice($sticky_posts, $offset, 1);
}
}
// Fetch sticky posts that weren't in the query results
if ( !empty($sticky_posts) ) {
$stickies__in = implode(',', array_map( 'absint', $sticky_posts ));
$stickies = $wpdb->get_results( "SELECT * FROM $wpdb->posts WHERE $wpdb->posts.ID IN ($stickies__in)" );
/** @todo Make sure post is published or viewable by the current user */
foreach ( $stickies as $sticky_post ) {
if ( 'publish' != $sticky_post->post_status )
continue;
array_splice($this->posts, $sticky_offset, 0, array($sticky_post));
$sticky_offset++;
}
}
}
if ( !$q['suppress_filters'] )
$this->posts = apply_filters('the_posts', $this->posts);
update_post_caches($this->posts);
$this->post_count = count($this->posts);
if ($this->post_count > 0) {
$this->post = $this->posts[0];
}
return $this->posts;
}
/**
* Setup the next post and iterate current post index.
*
* @since 1.5.0
* @access public
*
* @return object Next post.
*/
function next_post() {
$this->current_post++;
$this->post = $this->posts[$this->current_post];
return $this->post;
}
/**
* Sets up the current post.
*
* Retrieves the next post, sets up the post, sets the 'in the loop'
* property to true.
*
* @since 1.5.0
* @access public
* @uses $post
* @uses do_action() Calls 'loop_start' if loop has just started
*/
function the_post() {
global $post;
$this->in_the_loop = true;
$post = $this->next_post();
setup_postdata($post);
if ( $this->current_post == 0 ) // loop has just started
do_action('loop_start');
}
/**
* Whether there are more posts available in the loop.
*
* Calls action 'loop_end', when the loop is complete.
*
* @since 1.5.0
* @access public
* @uses do_action() Calls 'loop_start' if loop has just started
*
* @return bool True if posts are available, false if end of loop.
*/
function have_posts() {
if ($this->current_post + 1 < $this->post_count) {
return true;
} elseif ($this->current_post + 1 == $this->post_count && $this->post_count > 0) {
do_action('loop_end');
// Do some cleaning up after the loop
$this->rewind_posts();
}
$this->in_the_loop = false;
return false;
}
/**
* Rewind the posts and reset post index.
*
* @since 1.5.0
* @access public
*/
function rewind_posts() {
$this->current_post = -1;
if ($this->post_count > 0) {
$this->post = $this->posts[0];
}
}
/**
* Iterate current comment index and return comment object.
*
* @since 2.2.0
* @access public
*
* @return object Comment object.
*/
function next_comment() {
$this->current_comment++;
$this->comment = $this->comments[$this->current_comment];
return $this->comment;
}
/**
* Sets up the current comment.
*
* @since 2.2.0
* @access public
* @global object $comment Current comment.
* @uses do_action() Calls 'comment_loop_start' hook when first comment is processed.
*/
function the_comment() {
global $comment;
$comment = $this->next_comment();
if ($this->current_comment == 0) {
do_action('comment_loop_start');
}
}
/**
* Whether there are more comments available.
*
* Automatically rewinds comments when finished.
*
* @since 2.2.0
* @access public
*
* @return bool True, if more comments. False, if no more posts.
*/
function have_comments() {
if ($this->current_comment + 1 < $this->comment_count) {
return true;
} elseif ($this->current_comment + 1 == $this->comment_count) {
$this->rewind_comments();
}
return false;
}
/**
* Rewind the comments, resets the comment index and comment to first.
*
* @since 2.2.0
* @access public
*/
function rewind_comments() {
$this->current_comment = -1;
if ($this->comment_count > 0) {
$this->comment = $this->comments[0];
}
}
/**
* Sets up the WordPress query by parsing query string.
*
* @since 1.5.0
* @access public
*
* @param string $query URL query string.
* @return array List of posts.
*/
function &query($query) {
$this->parse_query($query);
return $this->get_posts();
}
/**
* Retrieve queried object.
*
* If queried object is not set, then the queried object will be set from
* the category, tag, taxonomy, posts page, single post, page, or author
* query variable. After it is set up, it will be returned.
*
* @since 1.5.0
* @access public
*
* @return object
*/
function get_queried_object() {
if (isset($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 = (int) $cat;
} else if ($this->is_tag) {
$tag_id = $this->get('tag_id');
$tag = &get_term($tag_id, 'post_tag');
if ( is_wp_error( $tag ) )
return $tag;
$this->queried_object = &$tag;
$this->queried_object_id = (int) $tag_id;
} else if ($this->is_tax) {
$tax = $this->get('taxonomy');
$slug = $this->get('term');
$term = &get_terms($tax, array('slug'=>$slug));
if ( is_wp_error($term) || empty($term) )
return $term;
$term = $term[0];
$this->queried_object = $term;
$this->queried_object_id = $term->term_id;
} else if ($this->is_posts_page) {
$this->queried_object = & get_page(get_option('page_for_posts'));
$this->queried_object_id = (int) $this->queried_object->ID;
} else if ($this->is_single) {
$this->queried_object = $this->post;
$this->queried_object_id = (int) $this->post->ID;
} else if ($this->is_page) {
$this->queried_object = $this->post;
$this->queried_object_id = (int) $this->post->ID;
} else if ($this->is_author) {
$author_id = (int) $this->get('author');
$author = get_userdata($author_id);
$this->queried_object = $author;
$this->queried_object_id = $author_id;
}
return $this->queried_object;
}
/**
* Retrieve ID of the current queried object.
*
* @since 1.5.0
* @access public
*
* @return int
*/
function get_queried_object_id() {
$this->get_queried_object();
if (isset($this->queried_object_id)) {
return $this->queried_object_id;
}
return 0;
}
/**
* PHP4 type constructor.
*
* Sets up the WordPress query, if parameter is not empty.
*
* @since 1.5.0
* @access public
*
* @param string $query URL query string.
* @return WP_Query
*/
function WP_Query ($query = '') {
if (! empty($query)) {
$this->query($query);
}
}
}
/**
* Redirect old slugs to the correct permalink.
*
* Attempts to find the current slug from the past slugs.
*
* @since 2.1.0
* @uses $wp_query
* @uses $wpdb
*
* @return null If no link is found, null is returned.
*/
function wp_old_slug_redirect () {
global $wp_query;
if ( is_404() && '' != $wp_query->query_vars['name'] ) :
global $wpdb;
$query = "SELECT post_id FROM $wpdb->postmeta, $wpdb->posts WHERE ID = post_id AND meta_key = '_wp_old_slug' AND meta_value='" . $wp_query->query_vars['name'] . "'";
// if year, monthnum, or day have been specified, make our query more precise
// just in case there are multiple identical _wp_old_slug values
if ( '' != $wp_query->query_vars['year'] )
$query .= " AND YEAR(post_date) = '{$wp_query->query_vars['year']}'";
if ( '' != $wp_query->query_vars['monthnum'] )
$query .= " AND MONTH(post_date) = '{$wp_query->query_vars['monthnum']}'";
if ( '' != $wp_query->query_vars['day'] )
$query .= " AND DAYOFMONTH(post_date) = '{$wp_query->query_vars['day']}'";
$id = (int) $wpdb->get_var($query);
if ( !$id )
return;
$link = get_permalink($id);
if ( !$link )
return;
wp_redirect($link, '301'); // Permanent redirect
exit;
endif;
}
/**
* Setup global post data.
*
* @since 1.5.0
*
* @param object $post Post data.
* @return bool True when finished.
*/
function setup_postdata($post) {
global $id, $authordata, $day, $currentmonth, $page, $pages, $multipage, $more, $numpages;
$id = (int) $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() || is_feed() )
$more = 1;
$content = $post->post_content;
if ( strpos( $content, '<!--nextpage-->' ) ) {
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;
}
?>
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