WordPress 4.7

[autoinstalls/wordpress.git] / wp-includes / query.php

diff --git a/wp-includes/query.php b/wp-includes/query.php
index 564c47b84338de8ee016267e7d60ebd06130f963..744610f425caceccc5636a3332c6cb1d9149c1a3 100644 (file)
--- a/wp-includes/query.php
+++ b/wp-includes/query.php
@@ -1,276 +1,807 @@
 <?php
 <?php

-
-/*
- * The Big Query.
+/**
+ * WordPress Query API
+ *
+ * The query API attempts to get which part of WordPress the user is on. It
+ * also provides functionality for getting URL query information.
+ *
+ * @link https://codex.wordpress.org/The_Loop More information on The Loop.
+ *
+ * @package WordPress
+ * @subpackage Query

  */
 
  */
 

-function get_query_var($var) {
+/**
+ * Retrieve variable in the WP_Query class.
+ *
+ * @since 1.5.0
+ * @since 3.9.0 The `$default` argument was introduced.
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.
+ *
+ * @param string $var       The variable key to retrieve.
+ * @param mixed  $default   Optional. Value to return if the query variable is not set. Default empty.
+ * @return mixed Contents of the query variable.
+ */
+function get_query_var( $var, $default = '' ) {

        global $wp_query;
        global $wp_query;

-
-       return $wp_query->get($var);
-}
-
-function set_query_var($var, $value) {
+       return $wp_query->get( $var, $default );
+}
+
+/**
+ * Retrieve the currently-queried object.
+ *
+ * Wrapper for WP_Query::get_queried_object().
+ *
+ * @since 3.1.0
+ * @access public
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.
+ *
+ * @return object Queried object.
+ */
+function get_queried_object() {

        global $wp_query;
        global $wp_query;

-
-       return $wp_query->set($var, $value);
-}
-
-function &query_posts($query) {
-       unset($GLOBALS['wp_query']);
-       $GLOBALS['wp_query'] =& new WP_Query();
+       return $wp_query->get_queried_object();
+}
+
+/**
+ * Retrieve ID of the current queried object.
+ *
+ * Wrapper for WP_Query::get_queried_object_id().
+ *
+ * @since 3.1.0
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.
+ *
+ * @return int ID of the queried object.
+ */
+function get_queried_object_id() {
+       global $wp_query;
+       return $wp_query->get_queried_object_id();
+}
+
+/**
+ * Set query variable.
+ *
+ * @since 2.2.0
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.
+ *
+ * @param string $var   Query variable key.
+ * @param mixed  $value Query variable value.
+ */
+function set_query_var( $var, $value ) {
+       global $wp_query;
+       $wp_query->set( $var, $value );
+}
+
+/**
+ * Sets up The Loop with query parameters.
+ *
+ * Note: This function will completely override the main query and isn't intended for use
+ * by plugins or themes. Its overly-simplistic approach to modifying the main query can be
+ * problematic and should be avoided wherever possible. In most cases, there are better,
+ * more performant options for modifying the main query such as via the {@see 'pre_get_posts'}
+ * action within WP_Query.
+ *
+ * This must not be used within the WordPress Loop.
+ *
+ * @since 1.5.0
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.
+ *
+ * @param array|string $query Array or string of WP_Query arguments.
+ * @return array List of post objects.
+ */
+function query_posts($query) {
+       $GLOBALS['wp_query'] = new WP_Query();

        return $GLOBALS['wp_query']->query($query);
 }
 
        return $GLOBALS['wp_query']->query($query);
 }
 

+/**
+ * Destroys the previous query and sets up a new query.
+ *
+ * This should be used after query_posts() and before another query_posts().
+ * This will remove obscure bugs that occur when the previous WP_Query object
+ * is not destroyed properly before another is set up.
+ *
+ * @since 2.3.0
+ *
+ * @global WP_Query $wp_query     Global WP_Query instance.
+ * @global WP_Query $wp_the_query Copy of the global WP_Query instance created during wp_reset_query().
+ */

 function wp_reset_query() {
 function wp_reset_query() {

-       unset($GLOBALS['wp_query']);
-       $GLOBALS['wp_query'] =& $GLOBALS['wp_the_query'];
+       $GLOBALS['wp_query'] = $GLOBALS['wp_the_query'];
+       wp_reset_postdata();

 }
 
 }
 

-/*
- * Query type checks.
+/**
+ * After looping through a separate query, this function restores
+ * the $post global to the current post in the main query.
+ *
+ * @since 3.0.0
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.

  */
  */

+function wp_reset_postdata() {
+       global $wp_query;

 
 

-function is_admin () {
-       if ( defined('WP_ADMIN') ) 
-               return WP_ADMIN;
-       return false;
+       if ( isset( $wp_query ) ) {
+               $wp_query->reset_postdata();
+       }

 }
 
 }
 

-function is_archive () {
+/*
+ * Query type checks.
+ */
+
+/**
+ * Is the query for an existing archive page?
+ *
+ * Month, Year, Category, Author, Post Type archive...
+ *
+ * @since 1.5.0
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.
+ *
+ * @return bool
+ */
+function is_archive() {

        global $wp_query;
 
        global $wp_query;
 

-       return $wp_query->is_archive;
+       if ( ! isset( $wp_query ) ) {
+               _doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1.0' );
+               return false;
+       }
+
+       return $wp_query->is_archive();

 }
 
 }
 

-function is_attachment () {
+/**
+ * Is the query for an existing post type archive page?
+ *
+ * @since 3.1.0
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.
+ *
+ * @param string|array $post_types Optional. Post type or array of posts types to check against.
+ * @return bool
+ */
+function is_post_type_archive( $post_types = '' ) {

        global $wp_query;
 
        global $wp_query;
 

-       return $wp_query->is_attachment;
+       if ( ! isset( $wp_query ) ) {
+               _doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1.0' );
+               return false;
+       }
+
+       return $wp_query->is_post_type_archive( $post_types );

 }
 
 }
 

-function is_author ($author = '') {
+/**
+ * Is the query for an existing attachment page?
+ *
+ * @since 2.0.0
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.
+ *
+ * @param int|string|array|object $attachment Attachment ID, title, slug, or array of such.
+ * @return bool
+ */
+function is_attachment( $attachment = '' ) {

        global $wp_query;
 
        global $wp_query;
 

-       if ( !$wp_query->is_author )
+       if ( ! isset( $wp_query ) ) {
+               _doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1.0' );

                return false;
                return false;

+       }

 
 

-       if ( empty($author) )
-               return true;
+       return $wp_query->is_attachment( $attachment );
+}
+
+/**
+ * Is the query for an existing author archive page?
+ *
+ * If the $author parameter is specified, this function will additionally
+ * check if the query is for one of the authors specified.
+ *
+ * @since 1.5.0
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.
+ *
+ * @param mixed $author Optional. User ID, nickname, nicename, or array of User IDs, nicknames, and nicenames
+ * @return bool
+ */
+function is_author( $author = '' ) {
+       global $wp_query;

 
 

-       $author_obj = $wp_query->get_queried_object();
+       if ( ! isset( $wp_query ) ) {
+               _doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1.0' );
+               return false;
+       }

 
 

-       if ( $author == $author_obj->ID )
-               return true;
-       elseif ( $author == $author_obj->nickname )
-               return true;
-       elseif ( $author == $author_obj->user_nicename )
-               return true;
+       return $wp_query->is_author( $author );
+}
+
+/**
+ * Is the query for an existing category archive page?
+ *
+ * If the $category parameter is specified, this function will additionally
+ * check if the query is for one of the categories specified.
+ *
+ * @since 1.5.0
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.
+ *
+ * @param mixed $category Optional. Category ID, name, slug, or array of Category IDs, names, and slugs.
+ * @return bool
+ */
+function is_category( $category = '' ) {
+       global $wp_query;

 
 

-       return false;
-}
+       if ( ! isset( $wp_query ) ) {
+               _doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1.0' );
+               return false;
+       }

 
 

-function is_category ($category = '') {
+       return $wp_query->is_category( $category );
+}
+
+/**
+ * Is the query for an existing tag archive page?
+ *
+ * If the $tag parameter is specified, this function will additionally
+ * check if the query is for one of the tags specified.
+ *
+ * @since 2.3.0
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.
+ *
+ * @param mixed $tag Optional. Tag ID, name, slug, or array of Tag IDs, names, and slugs.
+ * @return bool
+ */
+function is_tag( $tag = '' ) {

        global $wp_query;
 
        global $wp_query;
 

-       if ( !$wp_query->is_category )
+       if ( ! isset( $wp_query ) ) {
+               _doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1.0' );

                return false;
                return false;

+       }

 
 

-       if ( empty($category) )
-               return true;
-
-       $cat_obj = $wp_query->get_queried_object();
+       return $wp_query->is_tag( $tag );
+}
+
+/**
+ * Is the query for an existing custom taxonomy archive page?
+ *
+ * If the $taxonomy parameter is specified, this function will additionally
+ * check if the query is for that specific $taxonomy.
+ *
+ * If the $term parameter is specified in addition to the $taxonomy parameter,
+ * this function will additionally check if the query is for one of the terms
+ * specified.
+ *
+ * @since 2.5.0
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.
+ *
+ * @param string|array     $taxonomy Optional. Taxonomy slug or slugs.
+ * @param int|string|array $term     Optional. Term ID, name, slug or array of Term IDs, names, and slugs.
+ * @return bool True for custom taxonomy archive pages, false for built-in taxonomies (category and tag archives).
+ */
+function is_tax( $taxonomy = '', $term = '' ) {
+       global $wp_query;

 
 

-       if ( $category == $cat_obj->term_id )
-               return true;
-       else if ( $category == $cat_obj->name )
-               return true;
-       elseif ( $category == $cat_obj->slug )
-               return true;
+       if ( ! isset( $wp_query ) ) {
+               _doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1.0' );
+               return false;
+       }

 
 

-       return false;
+       return $wp_query->is_tax( $taxonomy, $term );

 }
 
 }
 

-function is_tag( $slug = '' ) {
+/**
+ * Is the query for an existing date archive?
+ *
+ * @since 1.5.0
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.
+ *
+ * @return bool
+ */
+function is_date() {

        global $wp_query;
        global $wp_query;

-       if ( !$wp_query->is_tag )
-               return false;

 
 

-       if ( empty( $slug ) )
-               return true;
+       if ( ! isset( $wp_query ) ) {
+               _doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1.0' );
+               return false;
+       }

 
 

-       $tag_obj = $wp_query->get_queried_object();
-       if ( $slug == $tag_obj->slug )
-               return true;
-       return false;
+       return $wp_query->is_date();

 }
 
 }
 

-function is_comments_popup () {
+/**
+ * Is the query for an existing day archive?
+ *
+ * @since 1.5.0
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.
+ *
+ * @return bool
+ */
+function is_day() {

        global $wp_query;
 
        global $wp_query;
 

-       return $wp_query->is_comments_popup;
-}
-
-function is_date () {
-       global $wp_query;
+       if ( ! isset( $wp_query ) ) {
+               _doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1.0' );
+               return false;
+       }

 
 

-       return $wp_query->is_date;
+       return $wp_query->is_day();

 }
 
 }
 

-function is_day () {
+/**
+ * Is the query for a feed?
+ *
+ * @since 1.5.0
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.
+ *
+ * @param string|array $feeds Optional feed types to check.
+ * @return bool
+ */
+function is_feed( $feeds = '' ) {

        global $wp_query;
 
        global $wp_query;
 

-       return $wp_query->is_day;
+       if ( ! isset( $wp_query ) ) {
+               _doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1.0' );
+               return false;
+       }
+
+       return $wp_query->is_feed( $feeds );

 }
 
 }
 

-function is_feed () {
+/**
+ * Is the query for a comments feed?
+ *
+ * @since 3.0.0
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.
+ *
+ * @return bool
+ */
+function is_comment_feed() {

        global $wp_query;
 
        global $wp_query;
 

-       return $wp_query->is_feed;
-}
+       if ( ! isset( $wp_query ) ) {
+               _doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1.0' );
+               return false;
+       }

 
 

-function is_home () {
+       return $wp_query->is_comment_feed();
+}
+
+/**
+ * Is the query for the front page of the site?
+ *
+ * This is for what is displayed at your site's main URL.
+ *
+ * Depends on the site's "Front page displays" Reading Settings 'show_on_front' and 'page_on_front'.
+ *
+ * If you set a static page for the front page of your site, this function will return
+ * true when viewing that page.
+ *
+ * Otherwise the same as @see is_home()
+ *
+ * @since 2.5.0
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.
+ *
+ * @return bool True, if front of site.
+ */
+function is_front_page() {

        global $wp_query;
 
        global $wp_query;
 

-       return $wp_query->is_home;
-}
+       if ( ! isset( $wp_query ) ) {
+               _doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1.0' );
+               return false;
+       }

 
 

-function is_month () {
+       return $wp_query->is_front_page();
+}
+
+/**
+ * Determines if the query is for the blog homepage.
+ *
+ * The blog homepage is the page that shows the time-based blog content of the site.
+ *
+ * is_home() is dependent on the site's "Front page displays" Reading Settings 'show_on_front'
+ * and 'page_for_posts'.
+ *
+ * If a static page is set for the front page of the site, this function will return true only
+ * on the page you set as the "Posts page".
+ *
+ * @since 1.5.0
+ *
+ * @see is_front_page()
+ * @global WP_Query $wp_query Global WP_Query instance.
+ *
+ * @return bool True if blog view homepage, otherwise false.
+ */
+function is_home() {

        global $wp_query;
 
        global $wp_query;
 

-       return $wp_query->is_month;
+       if ( ! isset( $wp_query ) ) {
+               _doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1.0' );
+               return false;
+       }
+
+       return $wp_query->is_home();

 }
 
 }
 

-function is_page ($page = '') {
+/**
+ * Is the query for an existing month archive?
+ *
+ * @since 1.5.0
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.
+ *
+ * @return bool
+ */
+function is_month() {

        global $wp_query;
 
        global $wp_query;
 

-       if ( !$wp_query->is_page )
+       if ( ! isset( $wp_query ) ) {
+               _doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1.0' );

                return false;
                return false;

+       }

 
 

-       if ( empty($page) )
-               return true;
-
-       $page_obj = $wp_query->get_queried_object();
+       return $wp_query->is_month();
+}
+
+/**
+ * Is the query for an existing single page?
+ *
+ * If the $page parameter is specified, this function will additionally
+ * check if the query is for one of the pages specified.
+ *
+ * @see is_single()
+ * @see is_singular()
+ *
+ * @since 1.5.0
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.
+ *
+ * @param int|string|array $page Optional. Page ID, title, slug, or array of such. Default empty.
+ * @return bool Whether the query is for an existing single page.
+ */
+function is_page( $page = '' ) {
+       global $wp_query;

 
 

-       if ( $page == $page_obj->ID )
-               return true;
-       elseif ( $page == $page_obj->post_title )
-               return true;
-       else if ( $page == $page_obj->post_name )
-               return true;
+       if ( ! isset( $wp_query ) ) {
+               _doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1.0' );
+               return false;
+       }

 
 

-       return false;
+       return $wp_query->is_page( $page );

 }
 
 }
 

-function is_paged () {
+/**
+ * Is the query for paged result and not for the first page?
+ *
+ * @since 1.5.0
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.
+ *
+ * @return bool
+ */
+function is_paged() {

        global $wp_query;
 
        global $wp_query;
 

-       return $wp_query->is_paged;
-}
-
-function is_plugin_page() {
-       global $plugin_page;
-
-       if ( isset($plugin_page) )
-               return true;
+       if ( ! isset( $wp_query ) ) {
+               _doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1.0' );
+               return false;
+       }

 
 

-       return false;
+       return $wp_query->is_paged();

 }
 
 }
 

+/**
+ * Is the query for a post or page preview?
+ *
+ * @since 2.0.0
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.
+ *
+ * @return bool
+ */

 function is_preview() {
        global $wp_query;
 
 function is_preview() {
        global $wp_query;
 

-       return $wp_query->is_preview;
+       if ( ! isset( $wp_query ) ) {
+               _doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1.0' );
+               return false;
+       }
+
+       return $wp_query->is_preview();

 }
 
 }
 

+/**
+ * Is the query for the robots file?
+ *
+ * @since 2.1.0
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.
+ *
+ * @return bool
+ */

 function is_robots() {
        global $wp_query;
 
 function is_robots() {
        global $wp_query;
 

-       return $wp_query->is_robots;
+       if ( ! isset( $wp_query ) ) {
+               _doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1.0' );
+               return false;
+       }
+
+       return $wp_query->is_robots();

 }
 
 }
 

-function is_search () {
+/**
+ * Is the query for a search?
+ *
+ * @since 1.5.0
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.
+ *
+ * @return bool
+ */
+function is_search() {

        global $wp_query;
 
        global $wp_query;
 

-       return $wp_query->is_search;
-}
+       if ( ! isset( $wp_query ) ) {
+               _doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1.0' );
+               return false;
+       }

 
 

-function is_single ($post = '') {
+       return $wp_query->is_search();
+}
+
+/**
+ * Is the query for an existing single post?
+ *
+ * Works for any post type, except attachments and pages
+ *
+ * If the $post parameter is specified, this function will additionally
+ * check if the query is for one of the Posts specified.
+ *
+ * @see is_page()
+ * @see is_singular()
+ *
+ * @since 1.5.0
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.
+ *
+ * @param int|string|array $post Optional. Post ID, title, slug, or array of such. Default empty.
+ * @return bool Whether the query is for an existing single post.
+ */
+function is_single( $post = '' ) {

        global $wp_query;
 
        global $wp_query;
 

-       if ( !$wp_query->is_single )
+       if ( ! isset( $wp_query ) ) {
+               _doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1.0' );

                return false;
                return false;

+       }

 
 

-       if ( empty( $post) )
-               return true;
-
-       $post_obj = $wp_query->get_queried_object();
+       return $wp_query->is_single( $post );
+}
+
+/**
+ * Is the query for an existing single post of any post type (post, attachment, page, ... )?
+ *
+ * If the $post_types parameter is specified, this function will additionally
+ * check if the query is for one of the Posts Types specified.
+ *
+ * @see is_page()
+ * @see is_single()
+ *
+ * @since 1.5.0
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.
+ *
+ * @param string|array $post_types Optional. Post type or array of post types. Default empty.
+ * @return bool Whether the query is for an existing single post of any of the given post types.
+ */
+function is_singular( $post_types = '' ) {
+       global $wp_query;

 
 

-       if ( $post == $post_obj->ID )
-               return true;
-       elseif ( $post == $post_obj->post_title )
-               return true;
-       elseif ( $post == $post_obj->post_name )
-               return true;
+       if ( ! isset( $wp_query ) ) {
+               _doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1.0' );
+               return false;
+       }

 
 

-       return false;
+       return $wp_query->is_singular( $post_types );

 }
 
 }
 

-function is_singular() {
+/**
+ * Is the query for a specific time?
+ *
+ * @since 1.5.0
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.
+ *
+ * @return bool
+ */
+function is_time() {

        global $wp_query;
 
        global $wp_query;
 

-       return $wp_query->is_singular;
+       if ( ! isset( $wp_query ) ) {
+               _doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1.0' );
+               return false;
+       }
+
+       return $wp_query->is_time();

 }
 
 }
 

-function is_time () {
+/**
+ * Is the query for a trackback endpoint call?
+ *
+ * @since 1.5.0
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.
+ *
+ * @return bool
+ */
+function is_trackback() {

        global $wp_query;
 
        global $wp_query;
 

-       return $wp_query->is_time;
+       if ( ! isset( $wp_query ) ) {
+               _doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1.0' );
+               return false;
+       }
+
+       return $wp_query->is_trackback();

 }
 
 }
 

-function is_trackback () {
+/**
+ * Is the query for an existing year archive?
+ *
+ * @since 1.5.0
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.
+ *
+ * @return bool
+ */
+function is_year() {

        global $wp_query;
 
        global $wp_query;
 

-       return $wp_query->is_trackback;
+       if ( ! isset( $wp_query ) ) {
+               _doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1.0' );
+               return false;
+       }
+
+       return $wp_query->is_year();

 }
 
 }
 

-function is_year () {
+/**
+ * Is the query a 404 (returns no results)?
+ *
+ * @since 1.5.0
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.
+ *
+ * @return bool
+ */
+function is_404() {

        global $wp_query;
 
        global $wp_query;
 

-       return $wp_query->is_year;
+       if ( ! isset( $wp_query ) ) {
+               _doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1.0' );
+               return false;
+       }
+
+       return $wp_query->is_404();

 }
 
 }
 

-function is_404 () {
+/**
+ * Is the query for an embedded post?
+ *
+ * @since 4.4.0
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.
+ *
+ * @return bool Whether we're in an embedded post or not.
+ */
+function is_embed() {

        global $wp_query;
 
        global $wp_query;
 

-       return $wp_query->is_404;
+       if ( ! isset( $wp_query ) ) {
+               _doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1.0' );
+               return false;
+       }
+
+       return $wp_query->is_embed();
+}
+
+/**
+ * Is the query the main query?
+ *
+ * @since 3.3.0
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.
+ *
+ * @return bool
+ */
+function is_main_query() {
+       if ( 'pre_get_posts' === current_filter() ) {
+               $message = sprintf(
+                       /* translators: 1: pre_get_posts 2: WP_Query->is_main_query() 3: is_main_query() 4: link to codex is_main_query() page. */
+                       __( 'In %1$s, use the %2$s method, not the %3$s function. See %4$s.' ),
+                       '<code>pre_get_posts</code>',
+                       '<code>WP_Query->is_main_query()</code>',
+                       '<code>is_main_query()</code>',
+                       __( 'https://codex.wordpress.org/Function_Reference/is_main_query' )
+               );
+               _doing_it_wrong( __FUNCTION__, $message, '3.7.0' );
+       }
+
+       global $wp_query;
+       return $wp_query->is_main_query();

 }
 
 /*
 }
 
 /*

- * The Loop.  Post loop control.
+ * The Loop. Post loop control.

  */
 
  */
 

+/**
+ * Whether current WordPress query has results to loop over.
+ *
+ * @since 1.5.0
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.
+ *
+ * @return bool
+ */

 function have_posts() {
        global $wp_query;
 function have_posts() {
        global $wp_query;

-

        return $wp_query->have_posts();
 }
 
        return $wp_query->have_posts();
 }
 

+/**
+ * Whether the caller is in the Loop.
+ *
+ * @since 2.0.0
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.
+ *
+ * @return bool True if caller is within loop, false if loop hasn't started or ended.
+ */

 function in_the_loop() {
        global $wp_query;
 function in_the_loop() {
        global $wp_query;

-

        return $wp_query->in_the_loop;
 }
 
        return $wp_query->in_the_loop;
 }
 

+/**
+ * Rewind the loop posts.
+ *
+ * @since 1.5.0
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.
+ */

 function rewind_posts() {
        global $wp_query;
 function rewind_posts() {
        global $wp_query;

-
-       return $wp_query->rewind_posts();
+       $wp_query->rewind_posts();

 }
 
 }
 

+/**
+ * Iterate the post index in the loop.
+ *
+ * @since 1.5.0
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.
+ */

 function the_post() {
        global $wp_query;
 function the_post() {
        global $wp_query;

-

        $wp_query->the_post();
 }
 
        $wp_query->the_post();
 }
 


@@ -278,1250 +809,133 @@ function the_post() {
  * Comments loop.
  */
 
  * Comments loop.
  */
 

+/**
+ * Whether there are comments to loop over.
+ *
+ * @since 2.2.0
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.
+ *
+ * @return bool
+ */

 function have_comments() {
        global $wp_query;
        return $wp_query->have_comments();
 }
 
 function have_comments() {
        global $wp_query;
        return $wp_query->have_comments();
 }
 

+/**
+ * Iterate comment index in the comment loop.
+ *
+ * @since 2.2.0
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.
+ *
+ * @return object
+ */

 function the_comment() {
        global $wp_query;
        return $wp_query->the_comment();
 }
 
 function the_comment() {
        global $wp_query;
        return $wp_query->the_comment();
 }
 

-/*
- * WP_Query
+/**
+ * Redirect old slugs to the correct permalink.
+ *
+ * Attempts to find the current slug from the past slugs.
+ *
+ * @since 2.1.0
+ *
+ * @global wpdb $wpdb WordPress database abstraction object.

  */
  */

+function wp_old_slug_redirect() {
+       if ( is_404() && '' !== get_query_var( 'name' ) ) {
+               global $wpdb;

 
 

-class WP_Query {
-       var $query;
-       var $query_vars = array();
-       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 $comments;
-       var $comment_count = 0;
-       var $current_comment = -1;
-       var $comment;
-
-       var $found_posts = 0;
-       var $max_num_pages = 0;
-
-       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_tag = false;
-       var $is_search = false;
-       var $is_feed = false;
-       var $is_comment_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_singular = false;
-       var $is_robots = false;
-       var $is_posts_page = 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_tag = 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;
-               $this->is_posts_page = false;
-       }
-
-       function init () {
-               unset($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.
-       function parse_query_vars() {
-               $this->parse_query('');
-       }
-
-       function fill_query_vars($array) {
-               $keys = array(
-                       'error'
-                       , 'm'
-                       , 'p'
-                       , 'subpost'
-                       , 'subpost_id'
-                       , 'attachment'
-                       , 'attachment_id'
-                       , 'name'
-                       , 'hour'
-                       , 'static'
-                       , 'pagename'
-                       , 'page_id'
-                       , 'second'
-                       , 'minute'
-                       , 'hour'
-                       , 'day'
-                       , 'monthnum'
-                       , 'year'
-                       , 'w'
-                       , 'category_name'
-                       , 'tag'
-                       , 'tag_id'
-                       , 'author_name'
-                       , 'feed'
-                       , 'tb'
-                       , 'paged'
-                       , 'comments_popup'
-                       , 'preview'
-               );
-
-               foreach ($keys as $key) {
-                       if ( !isset($array[$key]))
-                               $array[$key] = '';
-               }
-
-               $array_keys = array('category__in', 'category__not_in', 'category__and',
-                       '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 $array;
-       }
-
-       // Parse a query string and set query type booleans.
-       function parse_query ($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'] =  (int) $qv['p'];
-               $qv['page_id'] =  (int) $qv['page_id'];
-               $qv['year'] = (int) $qv['year'];
-               $qv['monthnum'] = (int) $qv['monthnum'];
-               $qv['day'] = (int) $qv['day'];
-               $qv['w'] = (int) $qv['w'];
-               $qv['m'] =  (int) $qv['m'];
-               if ( '' !== $qv['hour'] ) $qv['hour'] = (int) $qv['hour'];
-               if ( '' !== $qv['minute'] ) $qv['minute'] = (int) $qv['minute'];
-               if ( '' !== $qv['second'] ) $qv['second'] = (int) $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'] = (int) $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('intval', $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('intval', $qv['category__not_in']);
-                       }
-
-                       if ( !is_array($qv['category__and']) || empty($qv['category__and']) ) {
-                               $qv['category__and'] = array();
-                       } else {
-                               $qv['category__and'] = array_map('intval', $qv['category__and']);
-                               $this->is_category = true;
-                       }
-
-                       if (  '' != $qv['tag'] )
-                               $this->is_tag = true;
-
-                       $qv['tag_id'] = (int) $qv['tag_id'];
-                       if (  !empty($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('intval', $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('intval', $qv['tag__not_in']);
-                       }
-
-                       if ( !is_array($qv['tag__and']) || empty($qv['tag__and']) ) {
-                               $qv['tag__and'] = array();
-                       } else {
-                               $qv['tag__and'] = array_map('intval', $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['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_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']) )
-                       $qv['post_status'] = sanitize_user($qv['post_status'], true);
-
-               if ( $this->is_posts_page && !$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));
-       }
-
-       function set_404() {
-               $is_feed = $this->is_feed;
-
-               $this->init_query_flags();
-               $this->is_404 = true;
-
-               $this->is_feed = $is_feed;
-       }
-
-       function get($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, $user_ID;
-
-               do_action_ref_array('pre_get_posts', array(&$this));
-
-               // Shorthand.
-               $q = &$this->query_vars;
-
-               $q = $this->fill_query_vars($q);
-
-               // First let's clear some variables
-               $distinct = '';
-               $whichcat = '';
-               $whichauthor = '';
-               $whichpage = '';
-               $result = '';
-               $where = '';
-               $limits = '';
-               $join = '';
-               $search = '';
-               $groupby = '';
-
-               if ( !isset($q['post_type']) )
-                       $q['post_type'] = 'post';
-               $post_type = $q['post_type'];
-               if ( !isset($q['posts_per_page']) || $q['posts_per_page'] == 0 )
-                       $q['posts_per_page'] = get_option('posts_per_page');
-               if ( isset($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 ( $this->is_home && (empty($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'];
-                       $q['page'] = abs($q['page']);
-               }
-
-               $add_hours = intval(get_option('gmt_offset'));
-               $add_minutes = intval(60 * (get_option('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'] )
-                       $where .= " AND HOUR(post_date)='" . $q['hour'] . "'";
-
-               if ( '' !== $q['minute'] )
-                       $where .= " AND MINUTE(post_date)='" . $q['minute'] . "'";
-
-               if ( '' !== $q['second'] )
-                       $where .= " AND SECOND(post_date)='" . $q['second'] . "'";
-
-               if ( $q['year'] )
-                       $where .= " AND YEAR(post_date)='" . $q['year'] . "'";
-
-               if ( $q['monthnum'] )
-                       $where .= " AND MONTH(post_date)='" . $q['monthnum'] . "'";
-
-               if ( $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 ('' != $q['pagename']) {
-                       if ( isset($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;
-                       }
-
-                       if  ( ('page' != get_option('show_on_front') ) || ( $reqpage != get_option('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'];
-                               $where .= " AND (ID = '$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 ( $q['w'] )
-                       $where .= " AND WEEK(post_date, 1)='" . $q['w'] . "'";
-
-               if ( intval($q['comments_popup']) )
-                       $q['p'] = intval($q['comments_popup']);
-
-               // If an attachment is requested by number, let it supercede any post number.
-               if ( $q['attachment_id'] )
-                       $q['p'] = $q['attachment_id'];
-
-               // If a post number is specified, load that post
-               if ( $q['p'] )
-                       $where = ' AND ID = ' . $q['p'];
-
-               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 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}((post_title LIKE '{$n}{$term}{$n}') OR (post_content LIKE '{$n}{$term}{$n}'))";
-                               $searchand = ' AND ';
-                       }
-                       $term = addslashes_gpc($q['s']);
-                       if (!$q['sentence'] && count($q['search_terms']) > 1 && $q['search_terms'][0] != $q['s'] )
-                               $search .= " OR (post_title LIKE '{$n}{$term}{$n}') OR (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']);
-                       foreach ( $cat_array as $cat ) {
-                               $cat = intval($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($cat, 'category'));
-                               }
-                       }
-               }
-
-               if ( !empty($q['category__in']) || !empty($q['category__not_in']) || !empty($q['category__and']) ) {
-                       $groupby = "{$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']) ) {
-                       $ids = get_objects_in_term($q['category__not_in'], 'category');
-                       if ( is_wp_error( $ids ) ) 
-                               return $ids;
-                       if ( is_array($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'] ) {
-                       $reqcat = get_category_by_path($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');
-                               $reqtag = is_term( $q['tag'], 'post_tag' );
-                               if ( !empty($reqtag) )
-                                       $reqtag = $reqtag['term_id'];
-                               else
-                                       $reqtag = 0;
-
-                               $q['tag_id'] = $reqtag;
-                               $q['tag__in'][] = $reqtag;
-                       }
-               }
-
-               if ( !empty($q['tag__in']) || !empty($q['tag__not_in']) || !empty($q['tag__and']) ||
-                       !empty($q['tag_slug__in']) || !empty($q['tag_slug__and']) ) {
-                       $groupby = "{$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 = is_term( $q['tag_slug__in'][0], 'post_tag' );
-                       if ( !empty($reqtag) )
-                               $q['tag_id'] = $reqtag['term_id'];
-               }
-
-               if ( !empty($q['tag__not_in']) ) {
-                       $ids = get_objects_in_term($q['tag__not_in'], 'post_tag');
-                       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 {
-                               $whichcat = " AND 0 = 1";
-                               break;
-                       }
-               }
-
-               // Author/user stuff
-
-               if ( empty($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']);
-                               $q['author'] = ''.intval($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 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']."'");
-                       $whichauthor .= ' AND (post_author = '.intval($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'";
+               // Guess the current post_type based on the query vars.
+               if ( get_query_var( 'post_type' ) ) {
+                       $post_type = get_query_var( 'post_type' );
+               } elseif ( get_query_var( 'attachment' ) ) {
+                       $post_type = 'attachment';
+               } elseif ( get_query_var( 'pagename' ) ) {
+                       $post_type = 'page';

                } else {
                } else {

-                       $where .= " AND post_type = '$post_type'";
+                       $post_type = 'post';

                }
 
                }
 

-               if ( isset($q['post_status']) && '' != $q['post_status'] ) {
-                       $q_status = explode(',', $q['post_status']);
-                       $r_status = array();
-                       if ( in_array( 'draft'  , $q_status ) )
-                               $r_status[] = "post_status = 'draft'";
-                       if ( in_array( 'pending', $q_status ) )
-                               $r_status[] = "post_status = 'pending'";
-                       if ( in_array( 'future' , $q_status ) )
-                               $r_status[] = "post_status = 'future'";
-                       if ( in_array( 'inherit' , $q_status ) )
-                               $r_status[] = "post_status = 'inherit'";
-                       if ( in_array( 'private', $q_status ) )
-                               $r_status[] = "post_status = 'private'";
-                       if ( in_array( 'publish', $q_status ) )
-                               $r_status[] = "post_status = 'publish'";
-                       if ( !empty($r_status) )
-                               $where .= " AND (" . join( ' OR ', $r_status ) . ")";
-               } elseif ( !$this->is_singular ) {
-                       $where .= " AND (post_status = 'publish'";
-
-                       if ( is_admin() )
-                               $where .= " OR post_status = 'future' OR post_status = 'draft' OR post_status = 'pending'";
-
-                       if ( is_user_logged_in() ) {
-                               $where .= current_user_can( "read_private_{$post_type}s" ) ? " OR post_status = 'private'" : " OR post_author = $user_ID AND post_status = 'private'";
+               if ( is_array( $post_type ) ) {
+                       if ( count( $post_type ) > 1 ) {
+                               return;

                        }
                        }

-
-                       $where .= ')';
+                       $post_type = reset( $post_type );

                }
 
                }
 

-               // 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_singular ) {
-                       $page = abs(intval($q['paged']));
-                       if (empty($page)) {
-                               $page = 1;
-                       }
-
-                       if ( empty($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'
-                               $q['offset'] = abs(intval($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 = '';
-                       }
-
-                       $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";
-               }
-
-               // Apply post-paging filters on where and join.  Only plugins that
-               // manipulate paging queries should use these hooks.
-
-               // Announce current selection parameters.  For use by caching plugins.
-               do_action( 'posts_selection', $where . $groupby . $q['orderby'] . $limits . $join );
-
-               $where = apply_filters('posts_where_paged', $where);
-               $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']);
-               if ( !empty( $orderby ) )
-                       $orderby = 'ORDER BY ' . $orderby;
-               $distinct = apply_filters('posts_distinct', $distinct);
-               $fields = apply_filters('posts_fields', "$wpdb->posts.*");
-               $limits = apply_filters( 'post_limits', $limits );
-               $found_rows = '';
-               if ( !empty($limits) )
-                       $found_rows = 'SQL_CALC_FOUND_ROWS';
-
-               $request = " SELECT $found_rows $distinct $fields FROM $wpdb->posts $join WHERE 1=1 $where $groupby $orderby $limits";
-               $this->request = apply_filters('posts_request', $request);
-
-               $this->posts = $wpdb->get_results($this->request);
-               // Raw results filter.  Prior to status checks.
-               $this->posts = apply_filters('posts_results', $this->posts);
-
-               if ( $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();
-                                       }
-                               }
-                       }
-               }
-
-               $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;
-       }
-
-       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();
+               // Do not attempt redirect for hierarchical post types
+               if ( is_post_type_hierarchical( $post_type ) ) {
+                       return;

                }
 
                }
 

-               $this->in_the_loop = false;
-               return false;
-       }
+               $query = $wpdb->prepare("SELECT post_id FROM $wpdb->postmeta, $wpdb->posts WHERE ID = post_id AND post_type = %s AND meta_key = '_wp_old_slug' AND meta_value = %s", $post_type, get_query_var( 'name' ) );

 
 

-       function rewind_posts() {
-               $this->current_post = -1;
-               if ($this->post_count > 0) {
-                       $this->post = $this->posts[0];
+               // 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 ( get_query_var( 'year' ) ) {
+                       $query .= $wpdb->prepare(" AND YEAR(post_date) = %d", get_query_var( 'year' ) );

                }
                }

-       }
-
-       function next_comment() {
-               $this->current_comment++;
-
-               $this->comment = $this->comments[$this->current_comment];
-               return $this->comment;
-       }
-
-       function the_comment() {
-               global $comment;
-
-               $comment = $this->next_comment();
-
-               if ($this->current_comment == 0) {
-                       do_action('comment_loop_start');
+               if ( get_query_var( 'monthnum' ) ) {
+                       $query .= $wpdb->prepare(" AND MONTH(post_date) = %d", get_query_var( 'monthnum' ) );

                }
                }

-       }
-
-       function have_comments() {
-               if ($this->current_comment + 1 < $this->comment_count) {
-                       return true;
-               } elseif ($this->current_comment + 1 == $this->comment_count) {
-                       $this->rewind_comments();
+               if ( get_query_var( 'day' ) ) {
+                       $query .= $wpdb->prepare(" AND DAYOFMONTH(post_date) = %d", get_query_var( 'day' ) );

                }
 
                }
 

-               return false;
-       }
+               $id = (int) $wpdb->get_var( $query );

 
 

-       function rewind_comments() {
-               $this->current_comment = -1;
-               if ($this->comment_count > 0) {
-                       $this->comment = $this->comments[0];
+               if ( ! $id ) {
+                       return;

                }
                }

-       }
-
-       function &query($query) {
-               $this->parse_query($query);
-               return $this->get_posts();
-       }

 
 

-       function get_queried_object() {
-               if (isset($this->queried_object)) {
-                       return $this->queried_object;
-               }
+               $link = get_permalink( $id );

 
 

-               $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_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;
+               if ( get_query_var( 'paged' ) > 1 ) {
+                       $link = user_trailingslashit( trailingslashit( $link ) . 'page/' . get_query_var( 'paged' ) );
+               } elseif( is_embed() ) {
+                       $link = user_trailingslashit( trailingslashit( $link ) . 'embed' );

                }
 
                }
 

-               return $this->queried_object;
-       }
-
-       function get_queried_object_id() {
-               $this->get_queried_object();
+               /**
+                * Filters the old slug redirect URL.
+                *
+                * @since 4.4.0
+                *
+                * @param string $link The redirect URL.
+                */
+               $link = apply_filters( 'old_slug_redirect_url', $link );

 
 

-               if (isset($this->queried_object_id)) {
-                       return $this->queried_object_id;
+               if ( ! $link ) {
+                       return;

                }
 
                }
 

-               return 0;
-       }
-
-       function WP_Query ($query = '') {
-               if (! empty($query)) {
-                       $this->query($query);
-               }
+               wp_redirect( $link, 301 ); // Permanent redirect
+               exit;

        }
 }
 
        }
 }
 

-
-// Redirect old slugs
-function wp_old_slug_redirect () {
+/**
+ * Set up global post data.
+ *
+ * @since 1.5.0
+ * @since 4.4.0 Added the ability to pass a post ID to `$post`.
+ *
+ * @global WP_Query $wp_query Global WP_Query instance.
+ *
+ * @param WP_Post|object|int $post WP_Post instance or Post ID/object.
+ * @return bool True when finished.
+ */
+function setup_postdata( $post ) {

        global $wp_query;
        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;
-}
-
-
-//
-// Private helper functions
-//
-
-// Setup global post data.
-function setup_postdata($post) {
-       global $id, $postdata, $authordata, $day, $currentmonth, $page, $pages, $multipage, $more, $numpages, $wp_query;
-       global $pagenow;
-
-       $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() )
-               $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;
+       if ( ! empty( $wp_query ) && $wp_query instanceof WP_Query ) {
+               return $wp_query->setup_postdata( $post );

        }
        }

-       return true;
-}

 
 

-?>
+       return false;
+}