]> scripts.mit.edu Git - autoinstalls/wordpress.git/blobdiff - wp-includes/query.php
WordPress 4.7
[autoinstalls/wordpress.git] / wp-includes / query.php
index 988787a96e07874e30d8b540f77162bcdf0b5008..744610f425caceccc5636a3332c6cb1d9149c1a3 100644 (file)
@@ -77,17 +77,22 @@ function set_query_var( $var, $value ) {
 }
 
 /**
- * Set up The Loop with query parameters.
+ * Sets up 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.
+ * 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 string $query
- * @return array List of posts
+ * @param array|string $query Array or string of WP_Query arguments.
+ * @return array List of post objects.
  */
 function query_posts($query) {
        $GLOBALS['wp_query'] = new WP_Query();
@@ -95,11 +100,11 @@ function query_posts($query) {
 }
 
 /**
- * Destroy the previous query and set up a new query.
+ * Destroys the previous query and sets up 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 set up.
+ * 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
  *
@@ -146,7 +151,7 @@ function is_archive() {
        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' );
+               _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;
        }
 
@@ -167,7 +172,7 @@ function is_post_type_archive( $post_types = '' ) {
        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' );
+               _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;
        }
 
@@ -188,7 +193,7 @@ function is_attachment( $attachment = '' ) {
        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' );
+               _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;
        }
 
@@ -212,7 +217,7 @@ function is_author( $author = '' ) {
        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' );
+               _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;
        }
 
@@ -236,7 +241,7 @@ function is_category( $category = '' ) {
        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' );
+               _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;
        }
 
@@ -260,7 +265,7 @@ function is_tag( $tag = '' ) {
        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' );
+               _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;
        }
 
@@ -268,7 +273,7 @@ function is_tag( $tag = '' ) {
 }
 
 /**
- * Is the query for an existing taxonomy archive page?
+ * 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.
@@ -283,13 +288,13 @@ function is_tag( $tag = '' ) {
  *
  * @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
+ * @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 ( ! 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' );
+               _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;
        }
 
@@ -309,7 +314,7 @@ 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' );
+               _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;
        }
 
@@ -329,7 +334,7 @@ function is_day() {
        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' );
+               _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;
        }
 
@@ -350,7 +355,7 @@ function is_feed( $feeds = '' ) {
        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' );
+               _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;
        }
 
@@ -370,7 +375,7 @@ function is_comment_feed() {
        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' );
+               _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;
        }
 
@@ -399,7 +404,7 @@ function is_front_page() {
        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' );
+               _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;
        }
 
@@ -407,28 +412,28 @@ function is_front_page() {
 }
 
 /**
- * Is the query for the blog homepage?
+ * Determines if the query is for the blog homepage.
  *
- * This is the page which shows the time based blog content of your site.
+ * The blog homepage is the page that shows the time-based blog content of the site.
  *
- * Depends on the site's "Front page displays" Reading Settings 'show_on_front' and 'page_for_posts'.
- *
- * If you set a static page for the front page of your site, this function will return
- * true only on the page you set as the "Posts page".
+ * is_home() is dependent on the site's "Front page displays" Reading Settings 'show_on_front'
+ * and 'page_for_posts'.
  *
- * @see is_front_page()
+ * 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.
+ * @return bool True if blog view homepage, otherwise false.
  */
 function is_home() {
        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' );
+               _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;
        }
 
@@ -448,7 +453,7 @@ function is_month() {
        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' );
+               _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;
        }
 
@@ -475,7 +480,7 @@ function is_page( $page = '' ) {
        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' );
+               _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;
        }
 
@@ -495,7 +500,7 @@ function is_paged() {
        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' );
+               _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;
        }
 
@@ -515,7 +520,7 @@ function is_preview() {
        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' );
+               _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;
        }
 
@@ -535,7 +540,7 @@ function is_robots() {
        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' );
+               _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;
        }
 
@@ -555,7 +560,7 @@ function is_search() {
        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' );
+               _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;
        }
 
@@ -584,7 +589,7 @@ function is_single( $post = '' ) {
        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' );
+               _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;
        }
 
@@ -611,7 +616,7 @@ function is_singular( $post_types = '' ) {
        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' );
+               _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;
        }
 
@@ -631,7 +636,7 @@ function is_time() {
        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' );
+               _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;
        }
 
@@ -651,7 +656,7 @@ function is_trackback() {
        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' );
+               _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;
        }
 
@@ -671,7 +676,7 @@ function is_year() {
        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' );
+               _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;
        }
 
@@ -691,7 +696,7 @@ function is_404() {
        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' );
+               _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;
        }
 
@@ -711,7 +716,7 @@ function is_embed() {
        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' );
+               _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;
        }
 
@@ -737,7 +742,7 @@ function is_main_query() {
                        '<code>is_main_query()</code>',
                        __( 'https://codex.wordpress.org/Function_Reference/is_main_query' )
                );
-               _doing_it_wrong( __FUNCTION__, $message, '3.7' );
+               _doing_it_wrong( __FUNCTION__, $message, '3.7.0' );
        }
 
        global $wp_query;
@@ -832,4127 +837,86 @@ function the_comment() {
        return $wp_query->the_comment();
 }
 
-/*
- * WP_Query
- */
-
 /**
- * The WordPress Query class.
+ * Redirect old slugs to the correct permalink.
  *
- * @link https://codex.wordpress.org/Function_Reference/WP_Query Codex page.
+ * Attempts to find the current slug from the past slugs.
  *
- * @since 1.5.0
- * @since 4.5.0 Removed the `$comments_popup` property.
+ * @since 2.1.0
+ *
+ * @global wpdb $wpdb WordPress database abstraction object.
  */
-class WP_Query {
-
-       /**
-        * Query vars set by the user
-        *
-        * @since 1.5.0
-        * @access public
-        * @var array
-        */
-       public $query;
-
-       /**
-        * Query vars, after parsing
-        *
-        * @since 1.5.0
-        * @access public
-        * @var array
-        */
-       public $query_vars = array();
-
-       /**
-        * Taxonomy query, as passed to get_tax_sql()
-        *
-        * @since 3.1.0
-        * @access public
-        * @var object WP_Tax_Query
-        */
-       public $tax_query;
-
-       /**
-        * Metadata query container
-        *
-        * @since 3.2.0
-        * @access public
-        * @var object WP_Meta_Query
-        */
-       public $meta_query = false;
-
-       /**
-        * Date query container
-        *
-        * @since 3.7.0
-        * @access public
-        * @var object WP_Date_Query
-        */
-       public $date_query = false;
-
-       /**
-        * 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
-        */
-       public $queried_object;
-
-       /**
-        * The ID of the queried object.
-        *
-        * @since 1.5.0
-        * @access public
-        * @var int
-        */
-       public $queried_object_id;
-
-       /**
-        * Get post database query.
-        *
-        * @since 2.0.1
-        * @access public
-        * @var string
-        */
-       public $request;
-
-       /**
-        * List of posts.
-        *
-        * @since 1.5.0
-        * @access public
-        * @var array
-        */
-       public $posts;
-
-       /**
-        * The amount of posts for the current query.
-        *
-        * @since 1.5.0
-        * @access public
-        * @var int
-        */
-       public $post_count = 0;
-
-       /**
-        * Index of the current item in the loop.
-        *
-        * @since 1.5.0
-        * @access public
-        * @var int
-        */
-       public $current_post = -1;
-
-       /**
-        * Whether the loop has started and the caller is in the loop.
-        *
-        * @since 2.0.0
-        * @access public
-        * @var bool
-        */
-       public $in_the_loop = false;
-
-       /**
-        * The current post.
-        *
-        * @since 1.5.0
-        * @access public
-        * @var WP_Post
-        */
-       public $post;
-
-       /**
-        * The list of comments for current post.
-        *
-        * @since 2.2.0
-        * @access public
-        * @var array
-        */
-       public $comments;
-
-       /**
-        * The amount of comments for the posts.
-        *
-        * @since 2.2.0
-        * @access public
-        * @var int
-        */
-       public $comment_count = 0;
-
-       /**
-        * The index of the comment in the comment loop.
-        *
-        * @since 2.2.0
-        * @access public
-        * @var int
-        */
-       public $current_comment = -1;
-
-       /**
-        * Current comment ID.
-        *
-        * @since 2.2.0
-        * @access public
-        * @var int
-        */
-       public $comment;
-
-       /**
-        * The amount of found posts for the current query.
-        *
-        * If limit clause was not used, equals $post_count.
-        *
-        * @since 2.1.0
-        * @access public
-        * @var int
-        */
-       public $found_posts = 0;
-
-       /**
-        * The amount of pages.
-        *
-        * @since 2.1.0
-        * @access public
-        * @var int
-        */
-       public $max_num_pages = 0;
-
-       /**
-        * The amount of comment pages.
-        *
-        * @since 2.7.0
-        * @access public
-        * @var int
-        */
-       public $max_num_comment_pages = 0;
-
-       /**
-        * Set if query is single post.
-        *
-        * @since 1.5.0
-        * @access public
-        * @var bool
-        */
-       public $is_single = false;
-
-       /**
-        * Set if query is preview of blog.
-        *
-        * @since 2.0.0
-        * @access public
-        * @var bool
-        */
-       public $is_preview = false;
-
-       /**
-        * Set if query returns a page.
-        *
-        * @since 1.5.0
-        * @access public
-        * @var bool
-        */
-       public $is_page = false;
-
-       /**
-        * Set if query is an archive list.
-        *
-        * @since 1.5.0
-        * @access public
-        * @var bool
-        */
-       public $is_archive = false;
-
-       /**
-        * Set if query is part of a date.
-        *
-        * @since 1.5.0
-        * @access public
-        * @var bool
-        */
-       public $is_date = false;
-
-       /**
-        * Set if query contains a year.
-        *
-        * @since 1.5.0
-        * @access public
-        * @var bool
-        */
-       public $is_year = false;
-
-       /**
-        * Set if query contains a month.
-        *
-        * @since 1.5.0
-        * @access public
-        * @var bool
-        */
-       public $is_month = false;
-
-       /**
-        * Set if query contains a day.
-        *
-        * @since 1.5.0
-        * @access public
-        * @var bool
-        */
-       public $is_day = false;
-
-       /**
-        * Set if query contains time.
-        *
-        * @since 1.5.0
-        * @access public
-        * @var bool
-        */
-       public $is_time = false;
-
-       /**
-        * Set if query contains an author.
-        *
-        * @since 1.5.0
-        * @access public
-        * @var bool
-        */
-       public $is_author = false;
-
-       /**
-        * Set if query contains category.
-        *
-        * @since 1.5.0
-        * @access public
-        * @var bool
-        */
-       public $is_category = false;
-
-       /**
-        * Set if query contains tag.
-        *
-        * @since 2.3.0
-        * @access public
-        * @var bool
-        */
-       public $is_tag = false;
-
-       /**
-        * Set if query contains taxonomy.
-        *
-        * @since 2.5.0
-        * @access public
-        * @var bool
-        */
-       public $is_tax = false;
-
-       /**
-        * Set if query was part of a search result.
-        *
-        * @since 1.5.0
-        * @access public
-        * @var bool
-        */
-       public $is_search = false;
-
-       /**
-        * Set if query is feed display.
-        *
-        * @since 1.5.0
-        * @access public
-        * @var bool
-        */
-       public $is_feed = false;
-
-       /**
-        * Set if query is comment feed display.
-        *
-        * @since 2.2.0
-        * @access public
-        * @var bool
-        */
-       public $is_comment_feed = false;
-
-       /**
-        * Set if query is trackback.
-        *
-        * @since 1.5.0
-        * @access public
-        * @var bool
-        */
-       public $is_trackback = false;
-
-       /**
-        * Set if query is blog homepage.
-        *
-        * @since 1.5.0
-        * @access public
-        * @var bool
-        */
-       public $is_home = false;
-
-       /**
-        * Set if query couldn't found anything.
-        *
-        * @since 1.5.0
-        * @access public
-        * @var bool
-        */
-       public $is_404 = false;
-
-       /**
-        * Set if query is embed.
-        *
-        * @since 4.4.0
-        * @access public
-        * @var bool
-        */
-       public $is_embed = false;
-
-       /**
-        * Set if query is paged
-        *
-        * @since 1.5.0
-        * @access public
-        * @var bool
-        */
-       public $is_paged = false;
-
-       /**
-        * Set if query is part of administration page.
-        *
-        * @since 1.5.0
-        * @access public
-        * @var bool
-        */
-       public $is_admin = false;
-
-       /**
-        * Set if query is an attachment.
-        *
-        * @since 2.0.0
-        * @access public
-        * @var bool
-        */
-       public $is_attachment = false;
-
-       /**
-        * Set if is single, is a page, or is an attachment.
-        *
-        * @since 2.1.0
-        * @access public
-        * @var bool
-        */
-       public $is_singular = false;
-
-       /**
-        * Set if query is for robots.
-        *
-        * @since 2.1.0
-        * @access public
-        * @var bool
-        */
-       public $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
-        */
-       public $is_posts_page = false;
-
-       /**
-        * Set if query is for a post type archive.
-        *
-        * @since 3.1.0
-        * @access public
-        * @var bool
-        */
-       public $is_post_type_archive = false;
-
-       /**
-        * Stores the ->query_vars state like md5(serialize( $this->query_vars ) ) so we know
-        * whether we have to re-parse because something has changed
-        *
-        * @since 3.1.0
-        * @access private
-        * @var bool|string
-        */
-       private $query_vars_hash = false;
-
-       /**
-        * Whether query vars have changed since the initial parse_query() call. Used to catch modifications to query vars made
-        * via pre_get_posts hooks.
-        *
-        * @since 3.1.1
-        * @access private
-        */
-       private $query_vars_changed = true;
-
-       /**
-        * Set if post thumbnails are cached
-        *
-        * @since 3.2.0
-        * @access public
-        * @var bool
-        */
-        public $thumbnails_cached = false;
-
-       /**
-        * Cached list of search stopwords.
-        *
-        * @since 3.7.0
-        * @var array
-        */
-       private $stopwords;
-
-       private $compat_fields = array( 'query_vars_hash', 'query_vars_changed' );
-
-       private $compat_methods = array( 'init_query_flags', 'parse_tax_query' );
-
-       /**
-        * Resets query flags to false.
-        *
-        * The query flags are what page info WordPress was able to figure out.
-        *
-        * @since 2.0.0
-        * @access private
-        */
-       private function init_query_flags() {
-               $this->is_single = false;
-               $this->is_preview = 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;
-               $this->is_post_type_archive = false;
-       }
-
-       /**
-        * Initiates object properties and sets default values.
-        *
-        * @since 1.5.0
-        * @access public
-        */
-       public function init() {
-               unset($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;
-               unset( $this->request );
-               unset( $this->post );
-               unset( $this->comments );
-               unset( $this->comment );
-               $this->comment_count = 0;
-               $this->current_comment = -1;
-               $this->found_posts = 0;
-               $this->max_num_pages = 0;
-               $this->max_num_comment_pages = 0;
-
-               $this->init_query_flags();
-       }
-
-       /**
-        * Reparse the query vars.
-        *
-        * @since 1.5.0
-        * @access public
-        */
-       public function parse_query_vars() {
-               $this->parse_query();
-       }
-
-       /**
-        * Fills in the query variables, which do not exist within the parameter.
-        *
-        * @since 2.1.0
-        * @since 4.4.0 Removed the `comments_popup` public query variable.
-        * @access public
-        *
-        * @param array $array Defined query variables.
-        * @return array Complete query variables with undefined ones filled in empty.
-        */
-       public function fill_query_vars($array) {
-               $keys = array(
-                       'error'
-                       , 'm'
-                       , 'p'
-                       , 'post_parent'
-                       , 'subpost'
-                       , 'subpost_id'
-                       , 'attachment'
-                       , 'attachment_id'
-                       , 'name'
-                       , 'static'
-                       , 'pagename'
-                       , 'page_id'
-                       , 'second'
-                       , 'minute'
-                       , 'hour'
-                       , 'day'
-                       , 'monthnum'
-                       , 'year'
-                       , 'w'
-                       , 'category_name'
-                       , 'tag'
-                       , 'cat'
-                       , 'tag_id'
-                       , 'author'
-                       , 'author_name'
-                       , 'feed'
-                       , 'tb'
-                       , 'paged'
-                       , 'meta_key'
-                       , 'meta_value'
-                       , 'preview'
-                       , 's'
-                       , 'sentence'
-                       , 'title'
-                       , 'fields'
-                       , 'menu_order'
-                       , 'embed'
-               );
-
-               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', 'post_name__in',
-                       'tag__in', 'tag__not_in', 'tag__and', 'tag_slug__in', 'tag_slug__and', 'post_parent__in', 'post_parent__not_in',
-                       'author__in', 'author__not_in' );
-
-               foreach ( $array_keys as $key ) {
-                       if ( !isset($array[$key]) )
-                               $array[$key] = array();
-               }
-               return $array;
-       }
-
-       /**
-        * Parse a query string and set query type booleans.
-        *
-        * @since 1.5.0
-        * @since 4.2.0 Introduced the ability to order by specific clauses of a `$meta_query`, by passing the clause's
-        *              array key to `$orderby`.
-        * @since 4.4.0 Introduced `$post_name__in` and `$title` parameters. `$s` was updated to support excluded
-        *              search terms, by prepending a hyphen.
-        * @since 4.5.0 Removed the `$comments_popup` parameter.
-        *              Introduced the `$comment_status` and `$ping_status` parameters.
-        *              Introduced `RAND(x)` syntax for `$orderby`, which allows an integer seed value to random sorts.
-        * @access public
-        *
-        * @param string|array $query {
-        *     Optional. Array or string of Query parameters.
-        *
-        *     @type int          $attachment_id           Attachment post ID. Used for 'attachment' post_type.
-        *     @type int|string   $author                  Author ID, or comma-separated list of IDs.
-        *     @type string       $author_name             User 'user_nicename'.
-        *     @type array        $author__in              An array of author IDs to query from.
-        *     @type array        $author__not_in          An array of author IDs not to query from.
-        *     @type bool         $cache_results           Whether to cache post information. Default true.
-        *     @type int|string   $cat                     Category ID or comma-separated list of IDs (this or any children).
-        *     @type array        $category__and           An array of category IDs (AND in).
-        *     @type array        $category__in            An array of category IDs (OR in, no children).
-        *     @type array        $category__not_in        An array of category IDs (NOT in).
-        *     @type string       $category_name           Use category slug (not name, this or any children).
-        *     @type string       $comment_status          Comment status.
-        *     @type int          $comments_per_page       The number of comments to return per page.
-        *                                                 Default 'comments_per_page' option.
-        *     @type array        $date_query              An associative array of WP_Date_Query arguments.
-        *                                                 {@see WP_Date_Query::__construct()}
-        *     @type int          $day                     Day of the month. Default empty. Accepts numbers 1-31.
-        *     @type bool         $exact                   Whether to search by exact keyword. Default false.
-        *     @type string|array $fields                  Which fields to return. Single field or all fields (string),
-        *                                                 or array of fields. 'id=>parent' uses 'id' and 'post_parent'.
-        *                                                 Default all fields. Accepts 'ids', 'id=>parent'.
-        *     @type int          $hour                    Hour of the day. Default empty. Accepts numbers 0-23.
-        *     @type int|bool     $ignore_sticky_posts     Whether to ignore sticky posts or not. Setting this to false
-        *                                                 excludes stickies from 'post__in'. Accepts 1|true, 0|false.
-        *                                                 Default 0|false.
-        *     @type int          $m                       Combination YearMonth. Accepts any four-digit year and month
-        *                                                 numbers 1-12. Default empty.
-        *     @type string       $meta_compare            Comparison operator to test the 'meta_value'.
-        *     @type string       $meta_key                Custom field key.
-        *     @type array        $meta_query              An associative array of WP_Meta_Query arguments.
-        *                                                 {@see WP_Meta_Query}
-        *     @type string       $meta_value              Custom field value.
-        *     @type int          $meta_value_num          Custom field value number.
-        *     @type int          $menu_order              The menu order of the posts.
-        *     @type int          $monthnum                The two-digit month. Default empty. Accepts numbers 1-12.
-        *     @type string       $name                    Post slug.
-        *     @type bool         $nopaging                Show all posts (true) or paginate (false). Default false.
-        *     @type bool         $no_found_rows           Whether to skip counting the total rows found. Enabling can improve
-        *                                                 performance. Default false.
-        *     @type int          $offset                  The number of posts to offset before retrieval.
-        *     @type string       $order                   Designates ascending or descending order of posts. Default 'DESC'.
-        *                                                 Accepts 'ASC', 'DESC'.
-        *     @type string|array $orderby                 Sort retrieved posts by parameter. One or more options may be
-        *                                                 passed. To use 'meta_value', or 'meta_value_num',
-        *                                                 'meta_key=keyname' must be also be defined. To sort by a
-        *                                                 specific `$meta_query` clause, use that clause's array key.
-        *                                                 Default 'date'. Accepts 'none', 'name', 'author', 'date',
-        *                                                 'title', 'modified', 'menu_order', 'parent', 'ID', 'rand',
-        *                                                 'RAND(x)' (where 'x' is an integer seed value),
-        *                                                 'comment_count', 'meta_value', 'meta_value_num', 'post__in',
-        *                                                 and the array keys of `$meta_query`.
-        *     @type int          $p                       Post ID.
-        *     @type int          $page                    Show the number of posts that would show up on page X of a
-        *                                                 static front page.
-        *     @type int          $paged                   The number of the current page.
-        *     @type int          $page_id                 Page ID.
-        *     @type string       $pagename                Page slug.
-        *     @type string       $perm                    Show posts if user has the appropriate capability.
-        *     @type string       $ping_status             Ping status.
-        *     @type array        $post__in                An array of post IDs to retrieve, sticky posts will be included
-        *     @type string       $post_mime_type          The mime type of the post. Used for 'attachment' post_type.
-        *     @type array        $post__not_in            An array of post IDs not to retrieve. Note: a string of comma-
-        *                                                 separated IDs will NOT work.
-        *     @type int          $post_parent             Page ID to retrieve child pages for. Use 0 to only retrieve
-        *                                                 top-level pages.
-        *     @type array        $post_parent__in         An array containing parent page IDs to query child pages from.
-        *     @type array        $post_parent__not_in     An array containing parent page IDs not to query child pages from.
-        *     @type string|array $post_type               A post type slug (string) or array of post type slugs.
-        *                                                 Default 'any' if using 'tax_query'.
-        *     @type string|array $post_status             A post status (string) or array of post statuses.
-        *     @type int          $posts_per_page          The number of posts to query for. Use -1 to request all posts.
-        *     @type int          $posts_per_archive_page  The number of posts to query for by archive page. Overrides
-        *                                                 'posts_per_page' when is_archive(), or is_search() are true.
-        *     @type array        $post_name__in           An array of post slugs that results must match.
-        *     @type string       $s                       Search keyword(s). Prepending a term with a hyphen will
-        *                                                 exclude posts matching that term. Eg, 'pillow -sofa' will
-        *                                                 return posts containing 'pillow' but not 'sofa'.
-        *     @type int          $second                  Second of the minute. Default empty. Accepts numbers 0-60.
-        *     @type bool         $sentence                Whether to search by phrase. Default false.
-        *     @type bool         $suppress_filters        Whether to suppress filters. Default false.
-        *     @type string       $tag                     Tag slug. Comma-separated (either), Plus-separated (all).
-        *     @type array        $tag__and                An array of tag ids (AND in).
-        *     @type array        $tag__in                 An array of tag ids (OR in).
-        *     @type array        $tag__not_in             An array of tag ids (NOT in).
-        *     @type int          $tag_id                  Tag id or comma-separated list of IDs.
-        *     @type array        $tag_slug__and           An array of tag slugs (AND in).
-        *     @type array        $tag_slug__in            An array of tag slugs (OR in). unless 'ignore_sticky_posts' is
-        *                                                 true. Note: a string of comma-separated IDs will NOT work.
-        *     @type array        $tax_query               An associative array of WP_Tax_Query arguments.
-        *                                                 {@see WP_Tax_Query->queries}
-        *     @type string       $title                   Post title.
-        *     @type bool         $update_post_meta_cache  Whether to update the post meta cache. Default true.
-        *     @type bool         $update_post_term_cache  Whether to update the post term cache. Default true.
-        *     @type int          $w                       The week number of the year. Default empty. Accepts numbers 0-53.
-        *     @type int          $year                    The four-digit year. Default empty. Accepts any four-digit year.
-        * }
-        */
-       public function parse_query( $query =  '' ) {
-               if ( ! empty( $query ) ) {
-                       $this->init();
-                       $this->query = $this->query_vars = wp_parse_args( $query );
-               } elseif ( ! isset( $this->query ) ) {
-                       $this->query = $this->query_vars;
-               }
-
-               $this->query_vars = $this->fill_query_vars($this->query_vars);
-               $qv = &$this->query_vars;
-               $this->query_vars_changed = true;
-
-               if ( ! empty($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'] = preg_replace( '|[^0-9]|', '', $qv['m'] );
-               $qv['paged'] = absint($qv['paged']);
-               $qv['cat'] = preg_replace( '|[^0-9,-]|', '', $qv['cat'] ); // comma separated list of positive or negative integers
-               $qv['author'] = preg_replace( '|[^0-9,-]|', '', $qv['author'] ); // comma separated list of positive or negative integers
-               $qv['pagename'] = trim( $qv['pagename'] );
-               $qv['name'] = trim( $qv['name'] );
-               $qv['title'] = trim( $qv['title'] );
-               if ( '' !== $qv['hour'] ) $qv['hour'] = absint($qv['hour']);
-               if ( '' !== $qv['minute'] ) $qv['minute'] = absint($qv['minute']);
-               if ( '' !== $qv['second'] ) $qv['second'] = absint($qv['second']);
-               if ( '' !== $qv['menu_order'] ) $qv['menu_order'] = absint($qv['menu_order']);
-
-               // Fairly insane upper bound for search string lengths.
-               if ( ! is_scalar( $qv['s'] ) || ( ! empty( $qv['s'] ) && strlen( $qv['s'] ) > 1600 ) ) {
-                       $qv['s'] = '';
-               }
-
-               // 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;
-               } else {
-                       // Look for archive queries. Dates, categories, authors, search, post type archives.
-
-                       if ( isset( $this->query['s'] ) ) {
-                               $this->is_search = true;
-                       }
-
-                       if ( '' !== $qv['second'] ) {
-                               $this->is_time = true;
-                               $this->is_date = true;
-                       }
-
-                       if ( '' !== $qv['minute'] ) {
-                               $this->is_time = true;
-                               $this->is_date = true;
-                       }
-
-                       if ( '' !== $qv['hour'] ) {
-                               $this->is_time = true;
-                               $this->is_date = true;
-                       }
-
-                       if ( $qv['day'] ) {
-                               if ( ! $this->is_date ) {
-                                       $date = sprintf( '%04d-%02d-%02d', $qv['year'], $qv['monthnum'], $qv['day'] );
-                                       if ( $qv['monthnum'] && $qv['year'] && ! wp_checkdate( $qv['monthnum'], $qv['day'], $qv['year'], $date ) ) {
-                                               $qv['error'] = '404';
-                                       } else {
-                                               $this->is_day = true;
-                                               $this->is_date = true;
-                                       }
-                               }
-                       }
-
-                       if ( $qv['monthnum'] ) {
-                               if ( ! $this->is_date ) {
-                                       if ( 12 < $qv['monthnum'] ) {
-                                               $qv['error'] = '404';
-                                       } else {
-                                               $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;
-                               } elseif ( strlen( $qv['m'] ) > 7 ) {
-                                       $this->is_day = true;
-                               } elseif ( strlen( $qv['m'] ) > 5 ) {
-                                       $this->is_month = true;
-                               } else {
-                                       $this->is_year = true;
-                               }
-                       }
-
-                       if ( '' != $qv['w'] ) {
-                               $this->is_date = true;
-                       }
-
-                       $this->query_vars_hash = false;
-                       $this->parse_tax_query( $qv );
-
-                       foreach ( $this->tax_query->queries as $tax_query ) {
-                               if ( ! is_array( $tax_query ) ) {
-                                       continue;
-                               }
-
-                               if ( isset( $tax_query['operator'] ) && 'NOT IN' != $tax_query['operator'] ) {
-                                       switch ( $tax_query['taxonomy'] ) {
-                                               case 'category':
-                                                       $this->is_category = true;
-                                                       break;
-                                               case 'post_tag':
-                                                       $this->is_tag = true;
-                                                       break;
-                                               default:
-                                                       $this->is_tax = true;
-                                       }
-                               }
-                       }
-                       unset( $tax_query );
-
-                       if ( empty($qv['author']) || ($qv['author'] == '0') ) {
-                               $this->is_author = false;
-                       } else {
-                               $this->is_author = true;
-                       }
-
-                       if ( '' != $qv['author_name'] )
-                               $this->is_author = true;
-
-                       if ( !empty( $qv['post_type'] ) && ! is_array( $qv['post_type'] ) ) {
-                               $post_type_obj = get_post_type_object( $qv['post_type'] );
-                               if ( ! empty( $post_type_obj->has_archive ) )
-                                       $this->is_post_type_archive = true;
-                       }
-
-                       if ( $this->is_post_type_archive || $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['embed'] ) {
-                       $this->is_embed = true;
-               }
-
-               if ( '' != $qv['tb'] )
-                       $this->is_trackback = true;
-
-               if ( '' != $qv['paged'] && ( intval($qv['paged']) > 1 ) )
-                       $this->is_paged = 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 || ( defined( 'REST_REQUEST' ) && REST_REQUEST ) || $this->is_trackback || $this->is_404 || $this->is_admin || $this->is_robots ) )
-                       $this->is_home = true;
-
-               // Correct is_* for page_on_front and page_for_posts
-               if ( $this->is_home && 'page' == get_option('show_on_front') && get_option('page_on_front') ) {
-                       $_query = wp_parse_args($this->query);
-                       // pagename can be set and empty depending on matched rewrite rules. Ignore an empty pagename.
-                       if ( isset($_query['pagename']) && '' == $_query['pagename'] )
-                               unset($_query['pagename']);
-
-                       unset( $_query['embed'] );
-
-                       if ( empty($_query) || !array_diff( array_keys($_query), array('preview', 'page', 'paged', 'cpage') ) ) {
-                               $this->is_page = true;
-                               $this->is_home = false;
-                               $qv['page_id'] = get_option('page_on_front');
-                               // Correct <!--nextpage--> for page_on_front
-                               if ( !empty($qv['paged']) ) {
-                                       $qv['page'] = $qv['paged'];
-                                       unset($qv['paged']);
-                               }
-                       }
-               }
-
-               if ( '' != $qv['pagename'] ) {
-                       $this->queried_object = get_page_by_path( $qv['pagename'] );
-
-                       if ( $this->queried_object && 'attachment' == $this->queried_object->post_type ) {
-                               if ( preg_match( "/^[^%]*%(?:postname)%/", get_option( 'permalink_structure' ) ) ) {
-                                       // See if we also have a post with the same slug
-                                       $post = get_page_by_path( $qv['pagename'], OBJECT, 'post' );
-                                       if ( $post ) {
-                                               $this->queried_object = $post;
-                                               $this->is_page = false;
-                                               $this->is_single = true;
-                                       }
-                               }
-                       }
-
-                       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']) ) {
-                       if ( is_array($qv['post_type']) )
-                               $qv['post_type'] = array_map('sanitize_key', $qv['post_type']);
-                       else
-                               $qv['post_type'] = sanitize_key($qv['post_type']);
-               }
-
-               if ( ! empty( $qv['post_status'] ) ) {
-                       if ( is_array( $qv['post_status'] ) )
-                               $qv['post_status'] = array_map('sanitize_key', $qv['post_status']);
-                       else
-                               $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();
-
-               $this->is_embed = $this->is_embed && ( $this->is_singular || $this->is_404 );
-
-               $this->query_vars_hash = md5( serialize( $this->query_vars ) );
-               $this->query_vars_changed = false;
-
-               /**
-                * Fires after the main query vars have been parsed.
-                *
-                * @since 1.5.0
-                *
-                * @param WP_Query &$this The WP_Query instance (passed by reference).
-                */
-               do_action_ref_array( 'parse_query', array( &$this ) );
-       }
+function wp_old_slug_redirect() {
+       if ( is_404() && '' !== get_query_var( 'name' ) ) {
+               global $wpdb;
 
-       /**
-        * Parses various taxonomy related query vars.
-        *
-        * For BC, this method is not marked as protected. See [28987].
-        *
-        * @access protected
-        * @since 3.1.0
-        *
-        * @param array $q The query variables. Passed by reference.
-        */
-       public function parse_tax_query( &$q ) {
-               if ( ! empty( $q['tax_query'] ) && is_array( $q['tax_query'] ) ) {
-                       $tax_query = $q['tax_query'];
+               // 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 {
-                       $tax_query = array();
-               }
-
-               if ( !empty($q['taxonomy']) && !empty($q['term']) ) {
-                       $tax_query[] = array(
-                               'taxonomy' => $q['taxonomy'],
-                               'terms' => array( $q['term'] ),
-                               'field' => 'slug',
-                       );
-               }
-
-               foreach ( get_taxonomies( array() , 'objects' ) as $taxonomy => $t ) {
-                       if ( 'post_tag' == $taxonomy )
-                               continue;       // Handled further down in the $q['tag'] block
-
-                       if ( $t->query_var && !empty( $q[$t->query_var] ) ) {
-                               $tax_query_defaults = array(
-                                       'taxonomy' => $taxonomy,
-                                       'field' => 'slug',
-                               );
-
-                               if ( isset( $t->rewrite['hierarchical'] ) && $t->rewrite['hierarchical'] ) {
-                                       $q[$t->query_var] = wp_basename( $q[$t->query_var] );
-                               }
-
-                               $term = $q[$t->query_var];
-
-                               if ( is_array( $term ) ) {
-                                       $term = implode( ',', $term );
-                               }
-
-                               if ( strpos($term, '+') !== false ) {
-                                       $terms = preg_split( '/[+]+/', $term );
-                                       foreach ( $terms as $term ) {
-                                               $tax_query[] = array_merge( $tax_query_defaults, array(
-                                                       'terms' => array( $term )
-                                               ) );
-                                       }
-                               } else {
-                                       $tax_query[] = array_merge( $tax_query_defaults, array(
-                                               'terms' => preg_split( '/[,]+/', $term )
-                                       ) );
-                               }
-                       }
-               }
-
-               // If querystring 'cat' is an array, implode it.
-               if ( is_array( $q['cat'] ) ) {
-                       $q['cat'] = implode( ',', $q['cat'] );
+                       $post_type = 'post';
                }
 
-               // Category stuff
-               if ( ! empty( $q['cat'] ) && ! $this->is_singular ) {
-                       $cat_in = $cat_not_in = array();
-
-                       $cat_array = preg_split( '/[,\s]+/', urldecode( $q['cat'] ) );
-                       $cat_array = array_map( 'intval', $cat_array );
-                       $q['cat'] = implode( ',', $cat_array );
-
-                       foreach ( $cat_array as $cat ) {
-                               if ( $cat > 0 )
-                                       $cat_in[] = $cat;
-                               elseif ( $cat < 0 )
-                                       $cat_not_in[] = abs( $cat );
-                       }
-
-                       if ( ! empty( $cat_in ) ) {
-                               $tax_query[] = array(
-                                       'taxonomy' => 'category',
-                                       'terms' => $cat_in,
-                                       'field' => 'term_id',
-                                       'include_children' => true
-                               );
-                       }
-
-                       if ( ! empty( $cat_not_in ) ) {
-                               $tax_query[] = array(
-                                       'taxonomy' => 'category',
-                                       'terms' => $cat_not_in,
-                                       'field' => 'term_id',
-                                       'operator' => 'NOT IN',
-                                       'include_children' => true
-                               );
+               if ( is_array( $post_type ) ) {
+                       if ( count( $post_type ) > 1 ) {
+                               return;
                        }
-                       unset( $cat_array, $cat_in, $cat_not_in );
-               }
-
-               if ( ! empty( $q['category__and'] ) && 1 === count( (array) $q['category__and'] ) ) {
-                       $q['category__and'] = (array) $q['category__and'];
-                       if ( ! isset( $q['category__in'] ) )
-                               $q['category__in'] = array();
-                       $q['category__in'][] = absint( reset( $q['category__and'] ) );
-                       unset( $q['category__and'] );
-               }
-
-               if ( ! empty( $q['category__in'] ) ) {
-                       $q['category__in'] = array_map( 'absint', array_unique( (array) $q['category__in'] ) );
-                       $tax_query[] = array(
-                               'taxonomy' => 'category',
-                               'terms' => $q['category__in'],
-                               'field' => 'term_id',
-                               'include_children' => false
-                       );
-               }
-
-               if ( ! empty($q['category__not_in']) ) {
-                       $q['category__not_in'] = array_map( 'absint', array_unique( (array) $q['category__not_in'] ) );
-                       $tax_query[] = array(
-                               'taxonomy' => 'category',
-                               'terms' => $q['category__not_in'],
-                               'operator' => 'NOT IN',
-                               'include_children' => false
-                       );
+                       $post_type = reset( $post_type );
                }
 
-               if ( ! empty($q['category__and']) ) {
-                       $q['category__and'] = array_map( 'absint', array_unique( (array) $q['category__and'] ) );
-                       $tax_query[] = array(
-                               'taxonomy' => 'category',
-                               'terms' => $q['category__and'],
-                               'field' => 'term_id',
-                               'operator' => 'AND',
-                               'include_children' => false
-                       );
+               // Do not attempt redirect for hierarchical post types
+               if ( is_post_type_hierarchical( $post_type ) ) {
+                       return;
                }
 
-               // If querystring 'tag' is array, implode it.
-               if ( is_array( $q['tag'] ) ) {
-                       $q['tag'] = implode( ',', $q['tag'] );
-               }
+               $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' ) );
 
-               // Tag stuff
-               if ( '' != $q['tag'] && !$this->is_singular && $this->query_vars_changed ) {
-                       if ( strpos($q['tag'], ',') !== false ) {
-                               $tags = preg_split('/[,\r\n\t ]+/', $q['tag']);
-                               foreach ( (array) $tags as $tag ) {
-                                       $tag = sanitize_term_field('slug', $tag, 0, 'post_tag', 'db');
-                                       $q['tag_slug__in'][] = $tag;
-                               }
-                       } elseif ( preg_match('/[+\r\n\t ]+/', $q['tag'] ) || ! empty( $q['cat'] ) ) {
-                               $tags = preg_split('/[+\r\n\t ]+/', $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 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 .= $wpdb->prepare(" AND YEAR(post_date) = %d", get_query_var( 'year' ) );
                }
-
-               if ( !empty($q['tag_id']) ) {
-                       $q['tag_id'] = absint( $q['tag_id'] );
-                       $tax_query[] = array(
-                               'taxonomy' => 'post_tag',
-                               'terms' => $q['tag_id']
-                       );
+               if ( get_query_var( 'monthnum' ) ) {
+                       $query .= $wpdb->prepare(" AND MONTH(post_date) = %d", get_query_var( 'monthnum' ) );
                }
-
-               if ( !empty($q['tag__in']) ) {
-                       $q['tag__in'] = array_map('absint', array_unique( (array) $q['tag__in'] ) );
-                       $tax_query[] = array(
-                               'taxonomy' => 'post_tag',
-                               'terms' => $q['tag__in']
-                       );
+               if ( get_query_var( 'day' ) ) {
+                       $query .= $wpdb->prepare(" AND DAYOFMONTH(post_date) = %d", get_query_var( 'day' ) );
                }
 
-               if ( !empty($q['tag__not_in']) ) {
-                       $q['tag__not_in'] = array_map('absint', array_unique( (array) $q['tag__not_in'] ) );
-                       $tax_query[] = array(
-                               'taxonomy' => 'post_tag',
-                               'terms' => $q['tag__not_in'],
-                               'operator' => 'NOT IN'
-                       );
-               }
+               $id = (int) $wpdb->get_var( $query );
 
-               if ( !empty($q['tag__and']) ) {
-                       $q['tag__and'] = array_map('absint', array_unique( (array) $q['tag__and'] ) );
-                       $tax_query[] = array(
-                               'taxonomy' => 'post_tag',
-                               'terms' => $q['tag__and'],
-                               'operator' => 'AND'
-                       );
+               if ( ! $id ) {
+                       return;
                }
 
-               if ( !empty($q['tag_slug__in']) ) {
-                       $q['tag_slug__in'] = array_map('sanitize_title_for_query', array_unique( (array) $q['tag_slug__in'] ) );
-                       $tax_query[] = array(
-                               'taxonomy' => 'post_tag',
-                               'terms' => $q['tag_slug__in'],
-                               'field' => 'slug'
-                       );
-               }
+               $link = get_permalink( $id );
 
-               if ( !empty($q['tag_slug__and']) ) {
-                       $q['tag_slug__and'] = array_map('sanitize_title_for_query', array_unique( (array) $q['tag_slug__and'] ) );
-                       $tax_query[] = array(
-                               'taxonomy' => 'post_tag',
-                               'terms' => $q['tag_slug__and'],
-                               'field' => 'slug',
-                               'operator' => 'AND'
-                       );
+               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' );
                }
 
-               $this->tax_query = new WP_Tax_Query( $tax_query );
-
                /**
-                * Fires after taxonomy-related query vars have been parsed.
+                * Filters the old slug redirect URL.
                 *
-                * @since 3.7.0
+                * @since 4.4.0
                 *
-                * @param WP_Query $this The WP_Query instance.
+                * @param string $link The redirect URL.
                 */
-               do_action( 'parse_tax_query', $this );
-       }
-
-       /**
-        * Generate SQL for the WHERE clause based on passed search terms.
-        *
-        * @since 3.7.0
-        *
-        * @global wpdb $wpdb WordPress database abstraction object.
-        *
-        * @param array $q Query variables.
-        * @return string WHERE clause.
-        */
-       protected function parse_search( &$q ) {
-               global $wpdb;
-
-               $search = '';
-
-               // added slashes screw with quote grouping when done early, so done later
-               $q['s'] = stripslashes( $q['s'] );
-               if ( empty( $_GET['s'] ) && $this->is_main_query() )
-                       $q['s'] = urldecode( $q['s'] );
-               // there are no line breaks in <input /> fields
-               $q['s'] = str_replace( array( "\r", "\n" ), '', $q['s'] );
-               $q['search_terms_count'] = 1;
-               if ( ! empty( $q['sentence'] ) ) {
-                       $q['search_terms'] = array( $q['s'] );
-               } else {
-                       if ( preg_match_all( '/".*?("|$)|((?<=[\t ",+])|^)[^\t ",+]+/', $q['s'], $matches ) ) {
-                               $q['search_terms_count'] = count( $matches[0] );
-                               $q['search_terms'] = $this->parse_search_terms( $matches[0] );
-                               // if the search string has only short terms or stopwords, or is 10+ terms long, match it as sentence
-                               if ( empty( $q['search_terms'] ) || count( $q['search_terms'] ) > 9 )
-                                       $q['search_terms'] = array( $q['s'] );
-                       } else {
-                               $q['search_terms'] = array( $q['s'] );
-                       }
-               }
-
-               $n = ! empty( $q['exact'] ) ? '' : '%';
-               $searchand = '';
-               $q['search_orderby_title'] = array();
-               foreach ( $q['search_terms'] as $term ) {
-                       // Terms prefixed with '-' should be excluded.
-                       $include = '-' !== substr( $term, 0, 1 );
-                       if ( $include ) {
-                               $like_op  = 'LIKE';
-                               $andor_op = 'OR';
-                       } else {
-                               $like_op  = 'NOT LIKE';
-                               $andor_op = 'AND';
-                               $term     = substr( $term, 1 );
-                       }
-
-                       if ( $n && $include ) {
-                               $like = '%' . $wpdb->esc_like( $term ) . '%';
-                               $q['search_orderby_title'][] = $wpdb->prepare( "$wpdb->posts.post_title LIKE %s", $like );
-                       }
-
-                       $like = $n . $wpdb->esc_like( $term ) . $n;
-                       $search .= $wpdb->prepare( "{$searchand}(($wpdb->posts.post_title $like_op %s) $andor_op ($wpdb->posts.post_excerpt $like_op %s) $andor_op ($wpdb->posts.post_content $like_op %s))", $like, $like, $like );
-                       $searchand = ' AND ';
-               }
-
-               if ( ! empty( $search ) ) {
-                       $search = " AND ({$search}) ";
-                       if ( ! is_user_logged_in() )
-                               $search .= " AND ($wpdb->posts.post_password = '') ";
-               }
-
-               return $search;
-       }
-
-       /**
-        * Check if the terms are suitable for searching.
-        *
-        * Uses an array of stopwords (terms) that are excluded from the separate
-        * term matching when searching for posts. The list of English stopwords is
-        * the approximate search engines list, and is translatable.
-        *
-        * @since 3.7.0
-        *
-        * @param array $terms Terms to check.
-        * @return array Terms that are not stopwords.
-        */
-       protected function parse_search_terms( $terms ) {
-               $strtolower = function_exists( 'mb_strtolower' ) ? 'mb_strtolower' : 'strtolower';
-               $checked = array();
-
-               $stopwords = $this->get_search_stopwords();
-
-               foreach ( $terms as $term ) {
-                       // keep before/after spaces when term is for exact match
-                       if ( preg_match( '/^".+"$/', $term ) )
-                               $term = trim( $term, "\"'" );
-                       else
-                               $term = trim( $term, "\"' " );
-
-                       // Avoid single A-Z and single dashes.
-                       if ( ! $term || ( 1 === strlen( $term ) && preg_match( '/^[a-z\-]$/i', $term ) ) )
-                               continue;
-
-                       if ( in_array( call_user_func( $strtolower, $term ), $stopwords, true ) )
-                               continue;
+               $link = apply_filters( 'old_slug_redirect_url', $link );
 
-                       $checked[] = $term;
+               if ( ! $link ) {
+                       return;
                }
 
-               return $checked;
+               wp_redirect( $link, 301 ); // Permanent redirect
+               exit;
        }
-
-       /**
-        * Retrieve stopwords used when parsing search terms.
-        *
-        * @since 3.7.0
-        *
-        * @return array Stopwords.
-        */
-       protected function get_search_stopwords() {
-               if ( isset( $this->stopwords ) )
-                       return $this->stopwords;
-
-               /* translators: This is a comma-separated list of very common words that should be excluded from a search,
-                * like a, an, and the. These are usually called "stopwords". You should not simply translate these individual
-                * words into your language. Instead, look for and provide commonly accepted stopwords in your language.
-                */
-               $words = explode( ',', _x( 'about,an,are,as,at,be,by,com,for,from,how,in,is,it,of,on,or,that,the,this,to,was,what,when,where,who,will,with,www',
-                       'Comma-separated list of search stopwords in your language' ) );
-
-               $stopwords = array();
-               foreach ( $words as $word ) {
-                       $word = trim( $word, "\r\n\t " );
-                       if ( $word )
-                               $stopwords[] = $word;
-               }
-
-               /**
-                * Filter stopwords used when parsing search terms.
-                *
-                * @since 3.7.0
-                *
-                * @param array $stopwords Stopwords.
-                */
-               $this->stopwords = apply_filters( 'wp_search_stopwords', $stopwords );
-               return $this->stopwords;
-       }
-
-       /**
-        * Generate SQL for the ORDER BY condition based on passed search terms.
-        *
-        * @global wpdb $wpdb WordPress database abstraction object.
-        *
-        * @param array $q Query variables.
-        * @return string ORDER BY clause.
-        */
-       protected function parse_search_order( &$q ) {
-               global $wpdb;
-
-               if ( $q['search_terms_count'] > 1 ) {
-                       $num_terms = count( $q['search_orderby_title'] );
-
-                       // If the search terms contain negative queries, don't bother ordering by sentence matches.
-                       $like = '';
-                       if ( ! preg_match( '/(?:\s|^)\-/', $q['s'] ) ) {
-                               $like = '%' . $wpdb->esc_like( $q['s'] ) . '%';
-                       }
-
-                       $search_orderby = '';
-
-                       // sentence match in 'post_title'
-                       if ( $like ) {
-                               $search_orderby .= $wpdb->prepare( "WHEN $wpdb->posts.post_title LIKE %s THEN 1 ", $like );
-                       }
-
-                       // sanity limit, sort as sentence when more than 6 terms
-                       // (few searches are longer than 6 terms and most titles are not)
-                       if ( $num_terms < 7 ) {
-                               // all words in title
-                               $search_orderby .= 'WHEN ' . implode( ' AND ', $q['search_orderby_title'] ) . ' THEN 2 ';
-                               // any word in title, not needed when $num_terms == 1
-                               if ( $num_terms > 1 )
-                                       $search_orderby .= 'WHEN ' . implode( ' OR ', $q['search_orderby_title'] ) . ' THEN 3 ';
-                       }
-
-                       // Sentence match in 'post_content' and 'post_excerpt'.
-                       if ( $like ) {
-                               $search_orderby .= $wpdb->prepare( "WHEN $wpdb->posts.post_excerpt LIKE %s THEN 4 ", $like );
-                               $search_orderby .= $wpdb->prepare( "WHEN $wpdb->posts.post_content LIKE %s THEN 5 ", $like );
-                       }
-
-                       if ( $search_orderby ) {
-                               $search_orderby = '(CASE ' . $search_orderby . 'ELSE 6 END)';
-                       }
-               } else {
-                       // single word or sentence search
-                       $search_orderby = reset( $q['search_orderby_title'] ) . ' DESC';
-               }
-
-               return $search_orderby;
-       }
-
-       /**
-        * If the passed orderby value is allowed, convert the alias to a
-        * properly-prefixed orderby value.
-        *
-        * @since 4.0.0
-        * @access protected
-        *
-        * @global wpdb $wpdb WordPress database abstraction object.
-        *
-        * @param string $orderby Alias for the field to order by.
-        * @return string|false Table-prefixed value to used in the ORDER clause. False otherwise.
-        */
-       protected function parse_orderby( $orderby ) {
-               global $wpdb;
-
-               // Used to filter values.
-               $allowed_keys = array(
-                       'post_name', 'post_author', 'post_date', 'post_title', 'post_modified',
-                       'post_parent', 'post_type', 'name', 'author', 'date', 'title', 'modified',
-                       'parent', 'type', 'ID', 'menu_order', 'comment_count', 'rand',
-               );
-
-               $primary_meta_key = '';
-               $primary_meta_query = false;
-               $meta_clauses = $this->meta_query->get_clauses();
-               if ( ! empty( $meta_clauses ) ) {
-                       $primary_meta_query = reset( $meta_clauses );
-
-                       if ( ! empty( $primary_meta_query['key'] ) ) {
-                               $primary_meta_key = $primary_meta_query['key'];
-                               $allowed_keys[] = $primary_meta_key;
-                       }
-
-                       $allowed_keys[] = 'meta_value';
-                       $allowed_keys[] = 'meta_value_num';
-                       $allowed_keys   = array_merge( $allowed_keys, array_keys( $meta_clauses ) );
-               }
-
-               // If RAND() contains a seed value, sanitize and add to allowed keys.
-               $rand_with_seed = false;
-               if ( preg_match( '/RAND\(([0-9]+)\)/i', $orderby, $matches ) ) {
-                       $orderby = sprintf( 'RAND(%s)', intval( $matches[1] ) );
-                       $allowed_keys[] = $orderby;
-                       $rand_with_seed = true;
-               }
-
-               if ( ! in_array( $orderby, $allowed_keys, true ) ) {
-                       return false;
-               }
-
-               switch ( $orderby ) {
-                       case 'post_name':
-                       case 'post_author':
-                       case 'post_date':
-                       case 'post_title':
-                       case 'post_modified':
-                       case 'post_parent':
-                       case 'post_type':
-                       case 'ID':
-                       case 'menu_order':
-                       case 'comment_count':
-                               $orderby_clause = "$wpdb->posts.{$orderby}";
-                               break;
-                       case 'rand':
-                               $orderby_clause = 'RAND()';
-                               break;
-                       case $primary_meta_key:
-                       case 'meta_value':
-                               if ( ! empty( $primary_meta_query['type'] ) ) {
-                                       $orderby_clause = "CAST({$primary_meta_query['alias']}.meta_value AS {$primary_meta_query['cast']})";
-                               } else {
-                                       $orderby_clause = "{$primary_meta_query['alias']}.meta_value";
-                               }
-                               break;
-                       case 'meta_value_num':
-                               $orderby_clause = "{$primary_meta_query['alias']}.meta_value+0";
-                               break;
-                       default:
-                               if ( array_key_exists( $orderby, $meta_clauses ) ) {
-                                       // $orderby corresponds to a meta_query clause.
-                                       $meta_clause = $meta_clauses[ $orderby ];
-                                       $orderby_clause = "CAST({$meta_clause['alias']}.meta_value AS {$meta_clause['cast']})";
-                               } elseif ( $rand_with_seed ) {
-                                       $orderby_clause = $orderby;
-                               } else {
-                                       // Default: order by post field.
-                                       $orderby_clause = "$wpdb->posts.post_" . sanitize_key( $orderby );
-                               }
-
-                               break;
-               }
-
-               return $orderby_clause;
-       }
-
-       /**
-        * Parse an 'order' query variable and cast it to ASC or DESC as necessary.
-        *
-        * @since 4.0.0
-        * @access protected
-        *
-        * @param string $order The 'order' query variable.
-        * @return string The sanitized 'order' query variable.
-        */
-       protected function parse_order( $order ) {
-               if ( ! is_string( $order ) || empty( $order ) ) {
-                       return 'DESC';
-               }
-
-               if ( 'ASC' === strtoupper( $order ) ) {
-                       return 'ASC';
-               } else {
-                       return 'DESC';
-               }
-       }
-
-       /**
-        * Sets the 404 property and saves whether query is feed.
-        *
-        * @since 2.0.0
-        * @access public
-        */
-       public function set_404() {
-               $is_feed = $this->is_feed;
-
-               $this->init_query_flags();
-               $this->is_404 = true;
-
-               $this->is_feed = $is_feed;
-       }
-
-       /**
-        * Retrieve query variable.
-        *
-        * @since 1.5.0
-        * @since 3.9.0 The `$default` argument was introduced.
-        *
-        * @access public
-        *
-        * @param string $query_var Query variable key.
-        * @param mixed  $default   Optional. Value to return if the query variable is not set. Default empty.
-        * @return mixed Contents of the query variable.
-        */
-       public function get( $query_var, $default = '' ) {
-               if ( isset( $this->query_vars[ $query_var ] ) ) {
-                       return $this->query_vars[ $query_var ];
-               }
-
-               return $default;
-       }
-
-       /**
-        * Set query variable.
-        *
-        * @since 1.5.0
-        * @access public
-        *
-        * @param string $query_var Query variable key.
-        * @param mixed  $value     Query variable value.
-        */
-       public function set($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
-        *
-        * @global wpdb $wpdb WordPress database abstraction object.
-        *
-        * @return array List of posts.
-        */
-       public function get_posts() {
-               global $wpdb;
-
-               $this->parse_query();
-
-               /**
-                * Fires after the query variable object is created, but before the actual query is run.
-                *
-                * Note: If using conditional tags, use the method versions within the passed instance
-                * (e.g. $this->is_main_query() instead of is_main_query()). This is because the functions
-                * like is_main_query() test against the global $wp_query instance, not the passed one.
-                *
-                * @since 2.0.0
-                *
-                * @param WP_Query &$this The WP_Query instance (passed by reference).
-                */
-               do_action_ref_array( 'pre_get_posts', array( &$this ) );
-
-               // Shorthand.
-               $q = &$this->query_vars;
-
-               // Fill again in case pre_get_posts unset some vars.
-               $q = $this->fill_query_vars($q);
-
-               // Parse meta query
-               $this->meta_query = new WP_Meta_Query();
-               $this->meta_query->parse_query_vars( $q );
-
-               // Set a flag if a pre_get_posts hook changed the query vars.
-               $hash = md5( serialize( $this->query_vars ) );
-               if ( $hash != $this->query_vars_hash ) {
-                       $this->query_vars_changed = true;
-                       $this->query_vars_hash = $hash;
-               }
-               unset($hash);
-
-               // First let's clear some variables
-               $distinct = '';
-               $whichauthor = '';
-               $whichmimetype = '';
-               $where = '';
-               $limits = '';
-               $join = '';
-               $search = '';
-               $groupby = '';
-               $post_status_join = false;
-               $page = 1;
-
-               if ( isset( $q['caller_get_posts'] ) ) {
-                       _deprecated_argument( 'WP_Query', '3.1', __( '"caller_get_posts" is deprecated. Use "ignore_sticky_posts" instead.' ) );
-                       if ( !isset( $q['ignore_sticky_posts'] ) )
-                               $q['ignore_sticky_posts'] = $q['caller_get_posts'];
-               }
-
-               if ( !isset( $q['ignore_sticky_posts'] ) )
-                       $q['ignore_sticky_posts'] = false;
-
-               if ( !isset($q['suppress_filters']) )
-                       $q['suppress_filters'] = false;
-
-               if ( !isset($q['cache_results']) ) {
-                       if ( wp_using_ext_object_cache() )
-                               $q['cache_results'] = false;
-                       else
-                               $q['cache_results'] = true;
-               }
-
-               if ( !isset($q['update_post_term_cache']) )
-                       $q['update_post_term_cache'] = true;
-
-               if ( !isset($q['update_post_meta_cache']) )
-                       $q['update_post_meta_cache'] = true;
-
-               if ( !isset($q['post_type']) ) {
-                       if ( $this->is_search )
-                               $q['post_type'] = 'any';
-                       else
-                               $q['post_type'] = '';
-               }
-               $post_type = $q['post_type'];
-               if ( empty( $q['posts_per_page'] ) ) {
-                       $q['posts_per_page'] = get_option( 'posts_per_page' );
-               }
-               if ( isset($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 ) {
-                       // This overrides posts_per_page.
-                       if ( ! empty( $q['posts_per_rss'] ) ) {
-                               $q['posts_per_page'] = $q['posts_per_rss'];
-                       } else {
-                               $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']);
-               elseif ( $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 true, forcibly turns off SQL_CALC_FOUND_ROWS even when limits are present.
-               if ( isset($q['no_found_rows']) )
-                       $q['no_found_rows'] = (bool) $q['no_found_rows'];
-               else
-                       $q['no_found_rows'] = false;
-
-               switch ( $q['fields'] ) {
-                       case 'ids':
-                               $fields = "$wpdb->posts.ID";
-                               break;
-                       case 'id=>parent':
-                               $fields = "$wpdb->posts.ID, $wpdb->posts.post_parent";
-                               break;
-                       default:
-                               $fields = "$wpdb->posts.*";
-               }
-
-               if ( '' !== $q['menu_order'] )
-                       $where .= " AND $wpdb->posts.menu_order = " . $q['menu_order'];
-
-               // The "m" parameter is meant for months but accepts datetimes of varying specificity
-               if ( $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);
-               }
-
-               // Handle the other individual date parameters
-               $date_parameters = array();
-
-               if ( '' !== $q['hour'] )
-                       $date_parameters['hour'] = $q['hour'];
-
-               if ( '' !== $q['minute'] )
-                       $date_parameters['minute'] = $q['minute'];
-
-               if ( '' !== $q['second'] )
-                       $date_parameters['second'] = $q['second'];
-
-               if ( $q['year'] )
-                       $date_parameters['year'] = $q['year'];
-
-               if ( $q['monthnum'] )
-                       $date_parameters['monthnum'] = $q['monthnum'];
-
-               if ( $q['w'] )
-                       $date_parameters['week'] = $q['w'];
-
-               if ( $q['day'] )
-                       $date_parameters['day'] = $q['day'];
-
-               if ( $date_parameters ) {
-                       $date_query = new WP_Date_Query( array( $date_parameters ) );
-                       $where .= $date_query->get_sql();
-               }
-               unset( $date_parameters, $date_query );
-
-               // Handle complex date queries
-               if ( ! empty( $q['date_query'] ) ) {
-                       $this->date_query = new WP_Date_Query( $q['date_query'] );
-                       $where .= $this->date_query->get_sql();
-               }
-
-
-               // If we've got a post_type AND it's not "any" post_type.
-               if ( !empty($q['post_type']) && 'any' != $q['post_type'] ) {
-                       foreach ( (array)$q['post_type'] as $_post_type ) {
-                               $ptype_obj = get_post_type_object($_post_type);
-                               if ( !$ptype_obj || !$ptype_obj->query_var || empty($q[ $ptype_obj->query_var ]) )
-                                       continue;
-
-                               if ( ! $ptype_obj->hierarchical ) {
-                                       // Non-hierarchical post types can directly use 'name'.
-                                       $q['name'] = $q[ $ptype_obj->query_var ];
-                               } else {
-                                       // Hierarchical post types will operate through 'pagename'.
-                                       $q['pagename'] = $q[ $ptype_obj->query_var ];
-                                       $q['name'] = '';
-                               }
-
-                               // Only one request for a slug is possible, this is why name & pagename are overwritten above.
-                               break;
-                       } //end foreach
-                       unset($ptype_obj);
-               }
-
-               if ( '' !== $q['title'] ) {
-                       $where .= $wpdb->prepare( " AND $wpdb->posts.post_title = %s", stripslashes( $q['title'] ) );
-               }
-
-               // Parameters related to 'post_name'.
-               if ( '' != $q['name'] ) {
-                       $q['name'] = sanitize_title_for_query( $q['name'] );
-                       $where .= " AND $wpdb->posts.post_name = '" . $q['name'] . "'";
-               } elseif ( '' != $q['pagename'] ) {
-                       if ( isset($this->queried_object_id) ) {
-                               $reqpage = $this->queried_object_id;
-                       } else {
-                               if ( 'page' != $q['post_type'] ) {
-                                       foreach ( (array)$q['post_type'] as $_post_type ) {
-                                               $ptype_obj = get_post_type_object($_post_type);
-                                               if ( !$ptype_obj || !$ptype_obj->hierarchical )
-                                                       continue;
-
-                                               $reqpage = get_page_by_path($q['pagename'], OBJECT, $_post_type);
-                                               if ( $reqpage )
-                                                       break;
-                                       }
-                                       unset($ptype_obj);
-                               } 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'] = sanitize_title_for_query( wp_basename( $q['pagename'] ) );
-                               $q['name'] = $q['pagename'];
-                               $where .= " AND ($wpdb->posts.ID = '$reqpage')";
-                               $reqpage_obj = get_post( $reqpage );
-                               if ( is_object($reqpage_obj) && 'attachment' == $reqpage_obj->post_type ) {
-                                       $this->is_attachment = true;
-                                       $post_type = $q['post_type'] = 'attachment';
-                                       $this->is_page = true;
-                                       $q['attachment_id'] = $reqpage;
-                               }
-                       }
-               } elseif ( '' != $q['attachment'] ) {
-                       $q['attachment'] = sanitize_title_for_query( wp_basename( $q['attachment'] ) );
-                       $q['name'] = $q['attachment'];
-                       $where .= " AND $wpdb->posts.post_name = '" . $q['attachment'] . "'";
-               } elseif ( is_array( $q['post_name__in'] ) && ! empty( $q['post_name__in'] ) ) {
-                       $q['post_name__in'] = array_map( 'sanitize_title_for_query', $q['post_name__in'] );
-                       $where .= " AND $wpdb->posts.post_name IN ('" . implode( "' ,'", $q['post_name__in'] ) . "')";
-               }
-
-               // If an attachment is requested by number, let it supersede 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 ( is_numeric( $q['post_parent'] ) ) {
-                       $where .= $wpdb->prepare( " AND $wpdb->posts.post_parent = %d ", $q['post_parent'] );
-               } elseif ( $q['post_parent__in'] ) {
-                       $post_parent__in = implode( ',', array_map( 'absint', $q['post_parent__in'] ) );
-                       $where .= " AND {$wpdb->posts}.post_parent IN ($post_parent__in)";
-               } elseif ( $q['post_parent__not_in'] ) {
-                       $post_parent__not_in = implode( ',',  array_map( 'absint', $q['post_parent__not_in'] ) );
-                       $where .= " AND {$wpdb->posts}.post_parent NOT IN ($post_parent__not_in)";
-               }
-
-               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 ( strlen( $q['s'] ) ) {
-                       $search = $this->parse_search( $q );
-               }
-
-               if ( ! $q['suppress_filters'] ) {
-                       /**
-                        * Filter the search SQL that is used in the WHERE clause of WP_Query.
-                        *
-                        * @since 3.0.0
-                        *
-                        * @param string   $search Search SQL for WHERE clause.
-                        * @param WP_Query $this   The current WP_Query object.
-                        */
-                       $search = apply_filters_ref_array( 'posts_search', array( $search, &$this ) );
-               }
-
-               // Taxonomies
-               if ( !$this->is_singular ) {
-                       $this->parse_tax_query( $q );
-
-                       $clauses = $this->tax_query->get_sql( $wpdb->posts, 'ID' );
-
-                       $join .= $clauses['join'];
-                       $where .= $clauses['where'];
-               }
-
-               if ( $this->is_tax ) {
-                       if ( empty($post_type) ) {
-                               // Do a fully inclusive search for currently registered post types of queried taxonomies
-                               $post_type = array();
-                               $taxonomies = array_keys( $this->tax_query->queried_terms );
-                               foreach ( get_post_types( array( 'exclude_from_search' => false ) ) as $pt ) {
-                                       $object_taxonomies = $pt === 'attachment' ? get_taxonomies_for_attachments() : get_object_taxonomies( $pt );
-                                       if ( array_intersect( $taxonomies, $object_taxonomies ) )
-                                               $post_type[] = $pt;
-                               }
-                               if ( ! $post_type )
-                                       $post_type = 'any';
-                               elseif ( count( $post_type ) == 1 )
-                                       $post_type = $post_type[0];
-
-                               $post_status_join = true;
-                       } elseif ( in_array('attachment', (array) $post_type) ) {
-                               $post_status_join = true;
-                       }
-               }
-
-               /*
-                * Ensure that 'taxonomy', 'term', 'term_id', 'cat', and
-                * 'category_name' vars are set for backward compatibility.
-                */
-               if ( ! empty( $this->tax_query->queried_terms ) ) {
-
-                       /*
-                        * Set 'taxonomy', 'term', and 'term_id' to the
-                        * first taxonomy other than 'post_tag' or 'category'.
-                        */
-                       if ( ! isset( $q['taxonomy'] ) ) {
-                               foreach ( $this->tax_query->queried_terms as $queried_taxonomy => $queried_items ) {
-                                       if ( empty( $queried_items['terms'][0] ) ) {
-                                               continue;
-                                       }
-
-                                       if ( ! in_array( $queried_taxonomy, array( 'category', 'post_tag' ) ) ) {
-                                               $q['taxonomy'] = $queried_taxonomy;
-
-                                               if ( 'slug' === $queried_items['field'] ) {
-                                                       $q['term'] = $queried_items['terms'][0];
-                                               } else {
-                                                       $q['term_id'] = $queried_items['terms'][0];
-                                               }
-
-                                               // Take the first one we find.
-                                               break;
-                                       }
-                               }
-                       }
-
-                       // 'cat', 'category_name', 'tag_id'
-                       foreach ( $this->tax_query->queried_terms as $queried_taxonomy => $queried_items ) {
-                               if ( empty( $queried_items['terms'][0] ) ) {
-                                       continue;
-                               }
-
-                               if ( 'category' === $queried_taxonomy ) {
-                                       $the_cat = get_term_by( $queried_items['field'], $queried_items['terms'][0], 'category' );
-                                       if ( $the_cat ) {
-                                               $this->set( 'cat', $the_cat->term_id );
-                                               $this->set( 'category_name', $the_cat->slug );
-                                       }
-                                       unset( $the_cat );
-                               }
-
-                               if ( 'post_tag' === $queried_taxonomy ) {
-                                       $the_tag = get_term_by( $queried_items['field'], $queried_items['terms'][0], 'post_tag' );
-                                       if ( $the_tag ) {
-                                               $this->set( 'tag_id', $the_tag->term_id );
-                                       }
-                                       unset( $the_tag );
-                               }
-                       }
-               }
-
-               if ( !empty( $this->tax_query->queries ) || !empty( $this->meta_query->queries ) ) {
-                       $groupby = "{$wpdb->posts}.ID";
-               }
-
-               // Author/user stuff
-
-               if ( ! empty( $q['author'] ) && $q['author'] != '0' ) {
-                       $q['author'] = addslashes_gpc( '' . urldecode( $q['author'] ) );
-                       $authors = array_unique( array_map( 'intval', preg_split( '/[,\s]+/', $q['author'] ) ) );
-                       foreach ( $authors as $author ) {
-                               $key = $author > 0 ? 'author__in' : 'author__not_in';
-                               $q[$key][] = abs( $author );
-                       }
-                       $q['author'] = implode( ',', $authors );
-               }
-
-               if ( ! empty( $q['author__not_in'] ) ) {
-                       $author__not_in = implode( ',', array_map( 'absint', array_unique( (array) $q['author__not_in'] ) ) );
-                       $where .= " AND {$wpdb->posts}.post_author NOT IN ($author__not_in) ";
-               } elseif ( ! empty( $q['author__in'] ) ) {
-                       $author__in = implode( ',', array_map( 'absint', array_unique( (array) $q['author__in'] ) ) );
-                       $where .= " AND {$wpdb->posts}.post_author IN ($author__in) ";
-               }
-
-               // 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 trailing slash
-                               }
-                       }
-                       $q['author_name'] = sanitize_title_for_query( $q['author_name'] );
-                       $q['author'] = get_user_by('slug', $q['author_name']);
-                       if ( $q['author'] )
-                               $q['author'] = $q['author']->ID;
-                       $whichauthor .= " AND ($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'], $wpdb->posts );
-
-               $where .= $search . $whichauthor . $whichmimetype;
-
-               if ( ! empty( $this->meta_query->queries ) ) {
-                       $clauses = $this->meta_query->get_sql( 'post', $wpdb->posts, 'ID', $this );
-                       $join   .= $clauses['join'];
-                       $where  .= $clauses['where'];
-               }
-
-               $rand = ( isset( $q['orderby'] ) && 'rand' === $q['orderby'] );
-               if ( ! isset( $q['order'] ) ) {
-                       $q['order'] = $rand ? '' : 'DESC';
-               } else {
-                       $q['order'] = $rand ? '' : $this->parse_order( $q['order'] );
-               }
-
-               // Order by.
-               if ( empty( $q['orderby'] ) ) {
-                       /*
-                        * Boolean false or empty array blanks out ORDER BY,
-                        * while leaving the value unset or otherwise empty sets the default.
-                        */
-                       if ( isset( $q['orderby'] ) && ( is_array( $q['orderby'] ) || false === $q['orderby'] ) ) {
-                               $orderby = '';
-                       } else {
-                               $orderby = "$wpdb->posts.post_date " . $q['order'];
-                       }
-               } elseif ( 'none' == $q['orderby'] ) {
-                       $orderby = '';
-               } elseif ( $q['orderby'] == 'post__in' && ! empty( $post__in ) ) {
-                       $orderby = "FIELD( {$wpdb->posts}.ID, $post__in )";
-               } elseif ( $q['orderby'] == 'post_parent__in' && ! empty( $post_parent__in ) ) {
-                       $orderby = "FIELD( {$wpdb->posts}.post_parent, $post_parent__in )";
-               } else {
-                       $orderby_array = array();
-                       if ( is_array( $q['orderby'] ) ) {
-                               foreach ( $q['orderby'] as $_orderby => $order ) {
-                                       $orderby = addslashes_gpc( urldecode( $_orderby ) );
-                                       $parsed  = $this->parse_orderby( $orderby );
-
-                                       if ( ! $parsed ) {
-                                               continue;
-                                       }
-
-                                       $orderby_array[] = $parsed . ' ' . $this->parse_order( $order );
-                               }
-                               $orderby = implode( ', ', $orderby_array );
-
-                       } else {
-                               $q['orderby'] = urldecode( $q['orderby'] );
-                               $q['orderby'] = addslashes_gpc( $q['orderby'] );
-
-                               foreach ( explode( ' ', $q['orderby'] ) as $i => $orderby ) {
-                                       $parsed = $this->parse_orderby( $orderby );
-                                       // Only allow certain values for safety.
-                                       if ( ! $parsed ) {
-                                               continue;
-                                       }
-
-                                       $orderby_array[] = $parsed;
-                               }
-                               $orderby = implode( ' ' . $q['order'] . ', ', $orderby_array );
-
-                               if ( empty( $orderby ) ) {
-                                       $orderby = "$wpdb->posts.post_date " . $q['order'];
-                               } elseif ( ! empty( $q['order'] ) ) {
-                                       $orderby .= " {$q['order']}";
-                               }
-                       }
-               }
-
-               // Order search results by relevance only when another "orderby" is not specified in the query.
-               if ( ! empty( $q['s'] ) ) {
-                       $search_orderby = '';
-                       if ( ! empty( $q['search_orderby_title'] ) && ( empty( $q['orderby'] ) && ! $this->is_feed ) || ( isset( $q['orderby'] ) && 'relevance' === $q['orderby'] ) )
-                               $search_orderby = $this->parse_search_order( $q );
-
-                       if ( ! $q['suppress_filters'] ) {
-                               /**
-                                * Filter the ORDER BY used when ordering search results.
-                                *
-                                * @since 3.7.0
-                                *
-                                * @param string   $search_orderby The ORDER BY clause.
-                                * @param WP_Query $this           The current WP_Query instance.
-                                */
-                               $search_orderby = apply_filters( 'posts_search_orderby', $search_orderby, $this );
-                       }
-
-                       if ( $search_orderby )
-                               $orderby = $orderby ? $search_orderby . ', ' . $orderby : $search_orderby;
-               }
-
-               if ( is_array( $post_type ) && count( $post_type ) > 1 ) {
-                       $post_type_cap = 'multiple_post_type';
-               } else {
-                       if ( is_array( $post_type ) )
-                               $post_type = reset( $post_type );
-                       $post_type_object = get_post_type_object( $post_type );
-                       if ( empty( $post_type_object ) )
-                               $post_type_cap = $post_type;
-               }
-
-               if ( isset( $q['post_password'] ) ) {
-                       $where .= $wpdb->prepare( " AND $wpdb->posts.post_password = %s", $q['post_password'] );
-                       if ( empty( $q['perm'] ) ) {
-                               $q['perm'] = 'readable';
-                       }
-               } elseif ( isset( $q['has_password'] ) ) {
-                       $where .= sprintf( " AND $wpdb->posts.post_password %s ''", $q['has_password'] ? '!=' : '=' );
-               }
-
-               if ( ! empty( $q['comment_status'] ) ) {
-                       $where .= $wpdb->prepare( " AND $wpdb->posts.comment_status = %s ", $q['comment_status'] );
-               }
-
-               if ( ! empty( $q['ping_status'] ) )  {
-                       $where .= $wpdb->prepare( " AND $wpdb->posts.ping_status = %s ", $q['ping_status'] );
-               }
-
-               if ( 'any' == $post_type ) {
-                       $in_search_post_types = get_post_types( array('exclude_from_search' => false) );
-                       if ( empty( $in_search_post_types ) )
-                               $where .= ' AND 1=0 ';
-                       else
-                               $where .= " AND $wpdb->posts.post_type IN ('" . join("', '", $in_search_post_types ) . "')";
-               } elseif ( !empty( $post_type ) && is_array( $post_type ) ) {
-                       $where .= " AND $wpdb->posts.post_type IN ('" . join("', '", $post_type) . "')";
-               } elseif ( ! empty( $post_type ) ) {
-                       $where .= " AND $wpdb->posts.post_type = '$post_type'";
-                       $post_type_object = get_post_type_object ( $post_type );
-               } elseif ( $this->is_attachment ) {
-                       $where .= " AND $wpdb->posts.post_type = 'attachment'";
-                       $post_type_object = get_post_type_object ( 'attachment' );
-               } elseif ( $this->is_page ) {
-                       $where .= " AND $wpdb->posts.post_type = 'page'";
-                       $post_type_object = get_post_type_object ( 'page' );
-               } else {
-                       $where .= " AND $wpdb->posts.post_type = 'post'";
-                       $post_type_object = get_post_type_object ( 'post' );
-               }
-
-               $edit_cap = 'edit_post';
-               $read_cap = 'read_post';
-
-               if ( ! empty( $post_type_object ) ) {
-                       $edit_others_cap = $post_type_object->cap->edit_others_posts;
-                       $read_private_cap = $post_type_object->cap->read_private_posts;
-               } else {
-                       $edit_others_cap = 'edit_others_' . $post_type_cap . 's';
-                       $read_private_cap = 'read_private_' . $post_type_cap . 's';
-               }
-
-               $user_id = get_current_user_id();
-
-               $q_status = array();
-               if ( ! empty( $q['post_status'] ) ) {
-                       $statuswheres = array();
-                       $q_status = $q['post_status'];
-                       if ( ! is_array( $q_status ) )
-                               $q_status = explode(',', $q_status);
-                       $r_status = array();
-                       $p_status = array();
-                       $e_status = array();
-                       if ( in_array( 'any', $q_status ) ) {
-                               foreach ( get_post_stati( array( 'exclude_from_search' => true ) ) as $status ) {
-                                       if ( ! in_array( $status, $q_status ) ) {
-                                               $e_status[] = "$wpdb->posts.post_status <> '$status'";
-                                       }
-                               }
-                       } else {
-                               foreach ( get_post_stati() as $status ) {
-                                       if ( in_array( $status, $q_status ) ) {
-                                               if ( 'private' == $status )
-                                                       $p_status[] = "$wpdb->posts.post_status = '$status'";
-                                               else
-                                                       $r_status[] = "$wpdb->posts.post_status = '$status'";
-                                       }
-                               }
-                       }
-
-                       if ( empty($q['perm'] ) || 'readable' != $q['perm'] ) {
-                               $r_status = array_merge($r_status, $p_status);
-                               unset($p_status);
-                       }
-
-                       if ( !empty($e_status) ) {
-                               $statuswheres[] = "(" . join( ' AND ', $e_status ) . ")";
-                       }
-                       if ( !empty($r_status) ) {
-                               if ( !empty($q['perm'] ) && 'editable' == $q['perm'] && !current_user_can($edit_others_cap) )
-                                       $statuswheres[] = "($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_cap) )
-                                       $statuswheres[] = "($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) . "))";
-                       }
-                       $where_status = implode( ' OR ', $statuswheres );
-                       if ( ! empty( $where_status ) ) {
-                               $where .= " AND ($where_status)";
-                       }
-               } elseif ( !$this->is_singular ) {
-                       $where .= " AND ($wpdb->posts.post_status = 'publish'";
-
-                       // Add public states.
-                       $public_states = get_post_stati( array('public' => true) );
-                       foreach ( (array) $public_states as $state ) {
-                               if ( 'publish' == $state ) // Publish is hard-coded above.
-                                       continue;
-                               $where .= " OR $wpdb->posts.post_status = '$state'";
-                       }
-
-                       if ( $this->is_admin ) {
-                               // Add protected states that should show in the admin all list.
-                               $admin_all_states = get_post_stati( array('protected' => true, 'show_in_admin_all_list' => true) );
-                               foreach ( (array) $admin_all_states as $state )
-                                       $where .= " OR $wpdb->posts.post_status = '$state'";
-                       }
-
-                       if ( is_user_logged_in() ) {
-                               // Add private states that are limited to viewing by the author of a post or someone who has caps to read private states.
-                               $private_states = get_post_stati( array('private' => true) );
-                               foreach ( (array) $private_states as $state )
-                                       $where .= current_user_can( $read_private_cap ) ? " OR $wpdb->posts.post_status = '$state'" : " OR $wpdb->posts.post_author = $user_id AND $wpdb->posts.post_status = '$state'";
-                       }
-
-                       $where .= ')';
-               }
-
-               /*
-                * Apply filters on where and join prior to paging so that any
-                * manipulations to them are reflected in the paging by day queries.
-                */
-               if ( !$q['suppress_filters'] ) {
-                       /**
-                        * Filter the WHERE clause of the query.
-                        *
-                        * @since 1.5.0
-                        *
-                        * @param string   $where The WHERE clause of the query.
-                        * @param WP_Query &$this The WP_Query instance (passed by reference).
-                        */
-                       $where = apply_filters_ref_array( 'posts_where', array( $where, &$this ) );
-
-                       /**
-                        * Filter the JOIN clause of the query.
-                        *
-                        * @since 1.5.0
-                        *
-                        * @param string   $where The JOIN clause of the query.
-                        * @param WP_Query &$this The WP_Query instance (passed by reference).
-                        */
-                       $join = apply_filters_ref_array( 'posts_join', array( $join, &$this ) );
-               }
-
-               // Paging
-               if ( empty($q['nopaging']) && !$this->is_singular ) {
-                       $page = absint($q['paged']);
-                       if ( !$page )
-                               $page = 1;
-
-                       // If 'offset' is provided, it takes precedence over 'paged'.
-                       if ( isset( $q['offset'] ) && is_numeric( $q['offset'] ) ) {
-                               $q['offset'] = absint( $q['offset'] );
-                               $pgstrt = $q['offset'] . ', ';
-                       } else {
-                               $pgstrt = absint( ( $page - 1 ) * $q['posts_per_page'] ) . ', ';
-                       }
-                       $limits = 'LIMIT ' . $pgstrt . $q['posts_per_page'];
-               }
-
-               // Comments feeds
-               if ( $this->is_comment_feed && ! $this->is_singular ) {
-                       if ( $this->is_archive || $this->is_search ) {
-                               $cjoin = "JOIN $wpdb->posts ON ($wpdb->comments.comment_post_ID = $wpdb->posts.ID) $join ";
-                               $cwhere = "WHERE comment_approved = '1' $where";
-                               $cgroupby = "$wpdb->comments.comment_id";
-                       } else { // Other non singular e.g. front
-                               $cjoin = "JOIN $wpdb->posts ON ( $wpdb->comments.comment_post_ID = $wpdb->posts.ID )";
-                               $cwhere = "WHERE ( post_status = 'publish' OR ( post_status = 'inherit' && post_type = 'attachment' ) ) AND comment_approved = '1'";
-                               $cgroupby = '';
-                       }
-
-                       if ( !$q['suppress_filters'] ) {
-                               /**
-                                * Filter the JOIN clause of the comments feed query before sending.
-                                *
-                                * @since 2.2.0
-                                *
-                                * @param string   $cjoin The JOIN clause of the query.
-                                * @param WP_Query &$this The WP_Query instance (passed by reference).
-                                */
-                               $cjoin = apply_filters_ref_array( 'comment_feed_join', array( $cjoin, &$this ) );
-
-                               /**
-                                * Filter the WHERE clause of the comments feed query before sending.
-                                *
-                                * @since 2.2.0
-                                *
-                                * @param string   $cwhere The WHERE clause of the query.
-                                * @param WP_Query &$this  The WP_Query instance (passed by reference).
-                                */
-                               $cwhere = apply_filters_ref_array( 'comment_feed_where', array( $cwhere, &$this ) );
-
-                               /**
-                                * Filter the GROUP BY clause of the comments feed query before sending.
-                                *
-                                * @since 2.2.0
-                                *
-                                * @param string   $cgroupby The GROUP BY clause of the query.
-                                * @param WP_Query &$this    The WP_Query instance (passed by reference).
-                                */
-                               $cgroupby = apply_filters_ref_array( 'comment_feed_groupby', array( $cgroupby, &$this ) );
-
-                               /**
-                                * Filter the ORDER BY clause of the comments feed query before sending.
-                                *
-                                * @since 2.8.0
-                                *
-                                * @param string   $corderby The ORDER BY clause of the query.
-                                * @param WP_Query &$this    The WP_Query instance (passed by reference).
-                                */
-                               $corderby = apply_filters_ref_array( 'comment_feed_orderby', array( 'comment_date_gmt DESC', &$this ) );
-
-                               /**
-                                * Filter the LIMIT clause of the comments feed query before sending.
-                                *
-                                * @since 2.8.0
-                                *
-                                * @param string   $climits The JOIN clause of the query.
-                                * @param WP_Query &$this   The WP_Query instance (passed by reference).
-                                */
-                               $climits = apply_filters_ref_array( 'comment_feed_limits', array( 'LIMIT ' . get_option('posts_per_rss'), &$this ) );
-                       }
-                       $cgroupby = ( ! empty( $cgroupby ) ) ? 'GROUP BY ' . $cgroupby : '';
-                       $corderby = ( ! empty( $corderby ) ) ? 'ORDER BY ' . $corderby : '';
-
-                       $comments = (array) $wpdb->get_results("SELECT $distinct $wpdb->comments.* FROM $wpdb->comments $cjoin $cwhere $cgroupby $corderby $climits");
-                       // Convert to WP_Comment
-                       $this->comments = array_map( 'get_comment', $comments );
-                       $this->comment_count = count($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";
-               }
-
-               $pieces = array( 'where', 'groupby', 'join', 'orderby', 'distinct', 'fields', 'limits' );
-
-               /*
-                * Apply post-paging filters on where and join. Only plugins that
-                * manipulate paging queries should use these hooks.
-                */
-               if ( !$q['suppress_filters'] ) {
-                       /**
-                        * Filter the WHERE clause of the query.
-                        *
-                        * Specifically for manipulating paging queries.
-                        *
-                        * @since 1.5.0
-                        *
-                        * @param string   $where The WHERE clause of the query.
-                        * @param WP_Query &$this The WP_Query instance (passed by reference).
-                        */
-                       $where = apply_filters_ref_array( 'posts_where_paged', array( $where, &$this ) );
-
-                       /**
-                        * Filter the GROUP BY clause of the query.
-                        *
-                        * @since 2.0.0
-                        *
-                        * @param string   $groupby The GROUP BY clause of the query.
-                        * @param WP_Query &$this   The WP_Query instance (passed by reference).
-                        */
-                       $groupby = apply_filters_ref_array( 'posts_groupby', array( $groupby, &$this ) );
-
-                       /**
-                        * Filter the JOIN clause of the query.
-                        *
-                        * Specifically for manipulating paging queries.
-                        *
-                        * @since 1.5.0
-                        *
-                        * @param string   $join  The JOIN clause of the query.
-                        * @param WP_Query &$this The WP_Query instance (passed by reference).
-                        */
-                       $join = apply_filters_ref_array( 'posts_join_paged', array( $join, &$this ) );
-
-                       /**
-                        * Filter the ORDER BY clause of the query.
-                        *
-                        * @since 1.5.1
-                        *
-                        * @param string   $orderby The ORDER BY clause of the query.
-                        * @param WP_Query &$this   The WP_Query instance (passed by reference).
-                        */
-                       $orderby = apply_filters_ref_array( 'posts_orderby', array( $orderby, &$this ) );
-
-                       /**
-                        * Filter the DISTINCT clause of the query.
-                        *
-                        * @since 2.1.0
-                        *
-                        * @param string   $distinct The DISTINCT clause of the query.
-                        * @param WP_Query &$this    The WP_Query instance (passed by reference).
-                        */
-                       $distinct = apply_filters_ref_array( 'posts_distinct', array( $distinct, &$this ) );
-
-                       /**
-                        * Filter the LIMIT clause of the query.
-                        *
-                        * @since 2.1.0
-                        *
-                        * @param string   $limits The LIMIT clause of the query.
-                        * @param WP_Query &$this  The WP_Query instance (passed by reference).
-                        */
-                       $limits = apply_filters_ref_array( 'post_limits', array( $limits, &$this ) );
-
-                       /**
-                        * Filter the SELECT clause of the query.
-                        *
-                        * @since 2.1.0
-                        *
-                        * @param string   $fields The SELECT clause of the query.
-                        * @param WP_Query &$this  The WP_Query instance (passed by reference).
-                        */
-                       $fields = apply_filters_ref_array( 'posts_fields', array( $fields, &$this ) );
-
-                       /**
-                        * Filter all query clauses at once, for convenience.
-                        *
-                        * Covers the WHERE, GROUP BY, JOIN, ORDER BY, DISTINCT,
-                        * fields (SELECT), and LIMITS clauses.
-                        *
-                        * @since 3.1.0
-                        *
-                        * @param array    $clauses The list of clauses for the query.
-                        * @param WP_Query &$this   The WP_Query instance (passed by reference).
-                        */
-                       $clauses = (array) apply_filters_ref_array( 'posts_clauses', array( compact( $pieces ), &$this ) );
-
-                       $where = isset( $clauses[ 'where' ] ) ? $clauses[ 'where' ] : '';
-                       $groupby = isset( $clauses[ 'groupby' ] ) ? $clauses[ 'groupby' ] : '';
-                       $join = isset( $clauses[ 'join' ] ) ? $clauses[ 'join' ] : '';
-                       $orderby = isset( $clauses[ 'orderby' ] ) ? $clauses[ 'orderby' ] : '';
-                       $distinct = isset( $clauses[ 'distinct' ] ) ? $clauses[ 'distinct' ] : '';
-                       $fields = isset( $clauses[ 'fields' ] ) ? $clauses[ 'fields' ] : '';
-                       $limits = isset( $clauses[ 'limits' ] ) ? $clauses[ 'limits' ] : '';
-               }
-
-               /**
-                * Fires to announce the query's current selection parameters.
-                *
-                * For use by caching plugins.
-                *
-                * @since 2.3.0
-                *
-                * @param string $selection The assembled selection query.
-                */
-               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'] ) {
-                       /**
-                        * Filter the WHERE clause of the query.
-                        *
-                        * For use by caching plugins.
-                        *
-                        * @since 2.5.0
-                        *
-                        * @param string   $where The WHERE clause of the query.
-                        * @param WP_Query &$this The WP_Query instance (passed by reference).
-                        */
-                       $where = apply_filters_ref_array( 'posts_where_request', array( $where, &$this ) );
-
-                       /**
-                        * Filter the GROUP BY clause of the query.
-                        *
-                        * For use by caching plugins.
-                        *
-                        * @since 2.5.0
-                        *
-                        * @param string   $groupby The GROUP BY clause of the query.
-                        * @param WP_Query &$this   The WP_Query instance (passed by reference).
-                        */
-                       $groupby = apply_filters_ref_array( 'posts_groupby_request', array( $groupby, &$this ) );
-
-                       /**
-                        * Filter the JOIN clause of the query.
-                        *
-                        * For use by caching plugins.
-                        *
-                        * @since 2.5.0
-                        *
-                        * @param string   $join  The JOIN clause of the query.
-                        * @param WP_Query &$this The WP_Query instance (passed by reference).
-                        */
-                       $join = apply_filters_ref_array( 'posts_join_request', array( $join, &$this ) );
-
-                       /**
-                        * Filter the ORDER BY clause of the query.
-                        *
-                        * For use by caching plugins.
-                        *
-                        * @since 2.5.0
-                        *
-                        * @param string   $orderby The ORDER BY clause of the query.
-                        * @param WP_Query &$this   The WP_Query instance (passed by reference).
-                        */
-                       $orderby = apply_filters_ref_array( 'posts_orderby_request', array( $orderby, &$this ) );
-
-                       /**
-                        * Filter the DISTINCT clause of the query.
-                        *
-                        * For use by caching plugins.
-                        *
-                        * @since 2.5.0
-                        *
-                        * @param string   $distinct The DISTINCT clause of the query.
-                        * @param WP_Query &$this    The WP_Query instance (passed by reference).
-                        */
-                       $distinct = apply_filters_ref_array( 'posts_distinct_request', array( $distinct, &$this ) );
-
-                       /**
-                        * Filter the SELECT clause of the query.
-                        *
-                        * For use by caching plugins.
-                        *
-                        * @since 2.5.0
-                        *
-                        * @param string   $fields The SELECT clause of the query.
-                        * @param WP_Query &$this  The WP_Query instance (passed by reference).
-                        */
-                       $fields = apply_filters_ref_array( 'posts_fields_request', array( $fields, &$this ) );
-
-                       /**
-                        * Filter the LIMIT clause of the query.
-                        *
-                        * For use by caching plugins.
-                        *
-                        * @since 2.5.0
-                        *
-                        * @param string   $limits The LIMIT clause of the query.
-                        * @param WP_Query &$this  The WP_Query instance (passed by reference).
-                        */
-                       $limits = apply_filters_ref_array( 'post_limits_request', array( $limits, &$this ) );
-
-                       /**
-                        * Filter all query clauses at once, for convenience.
-                        *
-                        * For use by caching plugins.
-                        *
-                        * Covers the WHERE, GROUP BY, JOIN, ORDER BY, DISTINCT,
-                        * fields (SELECT), and LIMITS clauses.
-                        *
-                        * @since 3.1.0
-                        *
-                        * @param array    $pieces The pieces of the query.
-                        * @param WP_Query &$this  The WP_Query instance (passed by reference).
-                        */
-                       $clauses = (array) apply_filters_ref_array( 'posts_clauses_request', array( compact( $pieces ), &$this ) );
-
-                       $where = isset( $clauses[ 'where' ] ) ? $clauses[ 'where' ] : '';
-                       $groupby = isset( $clauses[ 'groupby' ] ) ? $clauses[ 'groupby' ] : '';
-                       $join = isset( $clauses[ 'join' ] ) ? $clauses[ 'join' ] : '';
-                       $orderby = isset( $clauses[ 'orderby' ] ) ? $clauses[ 'orderby' ] : '';
-                       $distinct = isset( $clauses[ 'distinct' ] ) ? $clauses[ 'distinct' ] : '';
-                       $fields = isset( $clauses[ 'fields' ] ) ? $clauses[ 'fields' ] : '';
-                       $limits = isset( $clauses[ 'limits' ] ) ? $clauses[ 'limits' ] : '';
-               }
-
-               if ( ! empty($groupby) )
-                       $groupby = 'GROUP BY ' . $groupby;
-               if ( !empty( $orderby ) )
-                       $orderby = 'ORDER BY ' . $orderby;
-
-               $found_rows = '';
-               if ( !$q['no_found_rows'] && !empty($limits) )
-                       $found_rows = 'SQL_CALC_FOUND_ROWS';
-
-               $this->request = $old_request = "SELECT $found_rows $distinct $fields FROM $wpdb->posts $join WHERE 1=1 $where $groupby $orderby $limits";
-
-               if ( !$q['suppress_filters'] ) {
-                       /**
-                        * Filter the completed SQL query before sending.
-                        *
-                        * @since 2.0.0
-                        *
-                        * @param array    $request The complete SQL query.
-                        * @param WP_Query &$this   The WP_Query instance (passed by reference).
-                        */
-                       $this->request = apply_filters_ref_array( 'posts_request', array( $this->request, &$this ) );
-               }
-
-               if ( 'ids' == $q['fields'] ) {
-                       $this->posts = $wpdb->get_col( $this->request );
-                       $this->posts = array_map( 'intval', $this->posts );
-                       $this->post_count = count( $this->posts );
-                       $this->set_found_posts( $q, $limits );
-
-                       return $this->posts;
-               }
-
-               if ( 'id=>parent' == $q['fields'] ) {
-                       $this->posts = $wpdb->get_results( $this->request );
-                       $this->post_count = count( $this->posts );
-                       $this->set_found_posts( $q, $limits );
-
-                       $r = array();
-                       foreach ( $this->posts as $key => $post ) {
-                               $this->posts[ $key ]->ID = (int) $post->ID;
-                               $this->posts[ $key ]->post_parent = (int) $post->post_parent;
-
-                               $r[ (int) $post->ID ] = (int) $post->post_parent;
-                       }
-
-                       return $r;
-               }
-
-               $split_the_query = ( $old_request == $this->request && "$wpdb->posts.*" == $fields && !empty( $limits ) && $q['posts_per_page'] < 500 );
-
-               /**
-                * Filter whether to split the query.
-                *
-                * Splitting the query will cause it to fetch just the IDs of the found posts
-                * (and then individually fetch each post by ID), rather than fetching every
-                * complete row at once. One massive result vs. many small results.
-                *
-                * @since 3.4.0
-                *
-                * @param bool     $split_the_query Whether or not to split the query.
-                * @param WP_Query $this            The WP_Query instance.
-                */
-               $split_the_query = apply_filters( 'split_the_query', $split_the_query, $this );
-
-               if ( $split_the_query ) {
-                       // First get the IDs and then fill in the objects
-
-                       $this->request = "SELECT $found_rows $distinct $wpdb->posts.ID FROM $wpdb->posts $join WHERE 1=1 $where $groupby $orderby $limits";
-
-                       /**
-                        * Filter the Post IDs SQL request before sending.
-                        *
-                        * @since 3.4.0
-                        *
-                        * @param string   $request The post ID request.
-                        * @param WP_Query $this    The WP_Query instance.
-                        */
-                       $this->request = apply_filters( 'posts_request_ids', $this->request, $this );
-
-                       $ids = $wpdb->get_col( $this->request );
-
-                       if ( $ids ) {
-                               $this->posts = $ids;
-                               $this->set_found_posts( $q, $limits );
-                               _prime_post_caches( $ids, $q['update_post_term_cache'], $q['update_post_meta_cache'] );
-                       } else {
-                               $this->posts = array();
-                       }
-               } else {
-                       $this->posts = $wpdb->get_results( $this->request );
-                       $this->set_found_posts( $q, $limits );
-               }
-
-               // Convert to WP_Post objects
-               if ( $this->posts )
-                       $this->posts = array_map( 'get_post', $this->posts );
-
-               if ( ! $q['suppress_filters'] ) {
-                       /**
-                        * Filter the raw post results array, prior to status checks.
-                        *
-                        * @since 2.3.0
-                        *
-                        * @param array    $posts The post results array.
-                        * @param WP_Query &$this The WP_Query instance (passed by reference).
-                        */
-                       $this->posts = apply_filters_ref_array( 'posts_results', array( $this->posts, &$this ) );
-               }
-
-               if ( !empty($this->posts) && $this->is_comment_feed && $this->is_singular ) {
-                       /** This filter is documented in wp-includes/query.php */
-                       $cjoin = apply_filters_ref_array( 'comment_feed_join', array( '', &$this ) );
-
-                       /** This filter is documented in wp-includes/query.php */
-                       $cwhere = apply_filters_ref_array( 'comment_feed_where', array( "WHERE comment_post_ID = '{$this->posts[0]->ID}' AND comment_approved = '1'", &$this ) );
-
-                       /** This filter is documented in wp-includes/query.php */
-                       $cgroupby = apply_filters_ref_array( 'comment_feed_groupby', array( '', &$this ) );
-                       $cgroupby = ( ! empty( $cgroupby ) ) ? 'GROUP BY ' . $cgroupby : '';
-
-                       /** This filter is documented in wp-includes/query.php */
-                       $corderby = apply_filters_ref_array( 'comment_feed_orderby', array( 'comment_date_gmt DESC', &$this ) );
-                       $corderby = ( ! empty( $corderby ) ) ? 'ORDER BY ' . $corderby : '';
-
-                       /** This filter is documented in wp-includes/query.php */
-                       $climits = apply_filters_ref_array( 'comment_feed_limits', array( 'LIMIT ' . get_option('posts_per_rss'), &$this ) );
-
-                       $comments_request = "SELECT $wpdb->comments.* FROM $wpdb->comments $cjoin $cwhere $cgroupby $corderby $climits";
-                       $comments = $wpdb->get_results($comments_request);
-                       // Convert to WP_Comment
-                       $this->comments = array_map( 'get_comment', $comments );
-                       $this->comment_count = count($this->comments);
-               }
-
-               // 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]);
-                       if ( 'attachment' === $this->posts[0]->post_type && 0 === (int) $this->posts[0]->post_parent ) {
-                               $this->is_page = false;
-                               $this->is_single = true;
-                               $this->is_attachment = true;
-                       }
-                       $post_status_obj = get_post_status_object($status);
-
-                       // If the post_status was specifically requested, let it pass through.
-                       if ( !$post_status_obj->public && ! in_array( $status, $q_status ) ) {
-
-                               if ( ! is_user_logged_in() ) {
-                                       // User must be logged in to view unpublished posts.
-                                       $this->posts = array();
-                               } else {
-                                       if  ( $post_status_obj->protected ) {
-                                               // User must have edit permissions on the draft to preview.
-                                               if ( ! current_user_can($edit_cap, $this->posts[0]->ID) ) {
-                                                       $this->posts = array();
-                                               } else {
-                                                       $this->is_preview = true;
-                                                       if ( 'future' != $status )
-                                                               $this->posts[0]->post_date = current_time('mysql');
-                                               }
-                                       } elseif ( $post_status_obj->private ) {
-                                               if ( ! current_user_can($read_cap, $this->posts[0]->ID) )
-                                                       $this->posts = array();
-                                       } else {
-                                               $this->posts = array();
-                                       }
-                               }
-                       }
-
-                       if ( $this->is_preview && $this->posts && current_user_can( $edit_cap, $this->posts[0]->ID ) ) {
-                               /**
-                                * Filter the single post for preview mode.
-                                *
-                                * @since 2.7.0
-                                *
-                                * @param WP_Post  $post_preview  The Post object.
-                                * @param WP_Query &$this         The WP_Query instance (passed by reference).
-                                */
-                               $this->posts[0] = get_post( apply_filters_ref_array( 'the_preview', array( $this->posts[0], &$this ) ) );
-                       }
-               }
-
-               // Put sticky posts at the top of the posts array
-               $sticky_posts = get_option('sticky_posts');
-               if ( $this->is_home && $page <= 1 && is_array($sticky_posts) && !empty($sticky_posts) && !$q['ignore_sticky_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);
-                                       unset( $sticky_posts[$offset] );
-                               }
-                       }
-
-                       // If any posts have been excluded specifically, Ignore those that are sticky.
-                       if ( !empty($sticky_posts) && !empty($q['post__not_in']) )
-                               $sticky_posts = array_diff($sticky_posts, $q['post__not_in']);
-
-                       // Fetch sticky posts that weren't in the query results
-                       if ( !empty($sticky_posts) ) {
-                               $stickies = get_posts( array(
-                                       'post__in' => $sticky_posts,
-                                       'post_type' => $post_type,
-                                       'post_status' => 'publish',
-                                       'nopaging' => true
-                               ) );
-
-                               foreach ( $stickies as $sticky_post ) {
-                                       array_splice( $this->posts, $sticky_offset, 0, array( $sticky_post ) );
-                                       $sticky_offset++;
-                               }
-                       }
-               }
-
-               // If comments have been fetched as part of the query, make sure comment meta lazy-loading is set up.
-               if ( ! empty( $this->comments ) ) {
-                       wp_queue_comments_for_comment_meta_lazyload( $this->comments );
-               }
-
-               if ( ! $q['suppress_filters'] ) {
-                       /**
-                        * Filter the array of retrieved posts after they've been fetched and
-                        * internally processed.
-                        *
-                        * @since 1.5.0
-                        *
-                        * @param array    $posts The array of retrieved posts.
-                        * @param WP_Query &$this The WP_Query instance (passed by reference).
-                        */
-                       $this->posts = apply_filters_ref_array( 'the_posts', array( $this->posts, &$this ) );
-               }
-
-               // Ensure that any posts added/modified via one of the filters above are
-               // of the type WP_Post and are filtered.
-               if ( $this->posts ) {
-                       $this->post_count = count( $this->posts );
-
-                       $this->posts = array_map( 'get_post', $this->posts );
-
-                       if ( $q['cache_results'] )
-                               update_post_caches($this->posts, $post_type, $q['update_post_term_cache'], $q['update_post_meta_cache']);
-
-                       $this->post = reset( $this->posts );
-               } else {
-                       $this->post_count = 0;
-                       $this->posts = array();
-               }
-
-               if ( $q['update_post_term_cache'] ) {
-                       wp_queue_posts_for_term_meta_lazyload( $this->posts );
-               }
-
-               return $this->posts;
-       }
-
-       /**
-        * Set up the amount of found posts and the number of pages (if limit clause was used)
-        * for the current query.
-        *
-        * @since 3.5.0
-        * @access private
-        *
-        * @global wpdb $wpdb WordPress database abstraction object.
-        *
-        * @param array  $q      Query variables.
-        * @param string $limits LIMIT clauses of the query.
-        */
-       private function set_found_posts( $q, $limits ) {
-               global $wpdb;
-
-               // Bail if posts is an empty array. Continue if posts is an empty string,
-               // null, or false to accommodate caching plugins that fill posts later.
-               if ( $q['no_found_rows'] || ( is_array( $this->posts ) && ! $this->posts ) )
-                       return;
-
-               if ( ! empty( $limits ) ) {
-                       /**
-                        * Filter the query to run for retrieving the found posts.
-                        *
-                        * @since 2.1.0
-                        *
-                        * @param string   $found_posts The query to run to find the found posts.
-                        * @param WP_Query &$this       The WP_Query instance (passed by reference).
-                        */
-                       $this->found_posts = $wpdb->get_var( apply_filters_ref_array( 'found_posts_query', array( 'SELECT FOUND_ROWS()', &$this ) ) );
-               } else {
-                       $this->found_posts = count( $this->posts );
-               }
-
-               /**
-                * Filter the number of found posts for the query.
-                *
-                * @since 2.1.0
-                *
-                * @param int      $found_posts The number of posts found.
-                * @param WP_Query &$this       The WP_Query instance (passed by reference).
-                */
-               $this->found_posts = apply_filters_ref_array( 'found_posts', array( $this->found_posts, &$this ) );
-
-               if ( ! empty( $limits ) )
-                       $this->max_num_pages = ceil( $this->found_posts / $q['posts_per_page'] );
-       }
-
-       /**
-        * Set up the next post and iterate current post index.
-        *
-        * @since 1.5.0
-        * @access public
-        *
-        * @return WP_Post Next post.
-        */
-       public 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
-        *
-        * @global WP_Post $post
-        */
-       public function the_post() {
-               global $post;
-               $this->in_the_loop = true;
-
-               if ( $this->current_post == -1 ) // loop has just started
-                       /**
-                        * Fires once the loop is started.
-                        *
-                        * @since 2.0.0
-                        *
-                        * @param WP_Query &$this The WP_Query instance (passed by reference).
-                        */
-                       do_action_ref_array( 'loop_start', array( &$this ) );
-
-               $post = $this->next_post();
-               $this->setup_postdata( $post );
-       }
-
-       /**
-        * Whether there are more posts available in the loop.
-        *
-        * Calls action 'loop_end', when the loop is complete.
-        *
-        * @since 1.5.0
-        * @access public
-        *
-        * @return bool True if posts are available, false if end of loop.
-        */
-       public function have_posts() {
-               if ( $this->current_post + 1 < $this->post_count ) {
-                       return true;
-               } elseif ( $this->current_post + 1 == $this->post_count && $this->post_count > 0 ) {
-                       /**
-                        * Fires once the loop has ended.
-                        *
-                        * @since 2.0.0
-                        *
-                        * @param WP_Query &$this The WP_Query instance (passed by reference).
-                        */
-                       do_action_ref_array( 'loop_end', array( &$this ) );
-                       // 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
-        */
-       public function rewind_posts() {
-               $this->current_post = -1;
-               if ( $this->post_count > 0 ) {
-                       $this->post = $this->posts[0];
-               }
-       }
-
-       /**
-        * Iterate current comment index and return WP_Comment object.
-        *
-        * @since 2.2.0
-        * @access public
-        *
-        * @return WP_Comment Comment object.
-        */
-       public 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 WP_Comment $comment Current comment.
-        */
-       public function the_comment() {
-               global $comment;
-
-               $comment = $this->next_comment();
-
-               if ( $this->current_comment == 0 ) {
-                       /**
-                        * Fires once the comment loop is started.
-                        *
-                        * @since 2.2.0
-                        */
-                       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.
-        */
-       public 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
-        */
-       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.
-        */
-       public function query( $query ) {
-               $this->init();
-               $this->query = $this->query_vars = wp_parse_args( $query );
-               return $this->get_posts();
-       }
-
-       /**
-        * Retrieve queried object.
-        *
-        * If queried object is not set, then the queried object will be set from
-        * the category, tag, taxonomy, posts page, single post, page, or author
-        * query variable. After it is set up, it will be returned.
-        *
-        * @since 1.5.0
-        * @access public
-        *
-        * @return object
-        */
-       public function get_queried_object() {
-               if ( isset($this->queried_object) )
-                       return $this->queried_object;
-
-               $this->queried_object = null;
-               $this->queried_object_id = null;
-
-               if ( $this->is_category || $this->is_tag || $this->is_tax ) {
-                       if ( $this->is_category ) {
-                               if ( $this->get( 'cat' ) ) {
-                                       $term = get_term( $this->get( 'cat' ), 'category' );
-                               } elseif ( $this->get( 'category_name' ) ) {
-                                       $term = get_term_by( 'slug', $this->get( 'category_name' ), 'category' );
-                               }
-                       } elseif ( $this->is_tag ) {
-                               if ( $this->get( 'tag_id' ) ) {
-                                       $term = get_term( $this->get( 'tag_id' ), 'post_tag' );
-                               } elseif ( $this->get( 'tag' ) ) {
-                                       $term = get_term_by( 'slug', $this->get( 'tag' ), 'post_tag' );
-                               }
-                       } else {
-                               // For other tax queries, grab the first term from the first clause.
-                               $tax_query_in_and = wp_list_filter( $this->tax_query->queried_terms, array( 'operator' => 'NOT IN' ), 'NOT' );
-
-                               if ( ! empty( $tax_query_in_and ) ) {
-                                       $queried_taxonomies = array_keys( $tax_query_in_and );
-                                       $matched_taxonomy = reset( $queried_taxonomies );
-                                       $query = $tax_query_in_and[ $matched_taxonomy ];
-
-                                       if ( $query['terms'] ) {
-                                               if ( 'term_id' == $query['field'] ) {
-                                                       $term = get_term( reset( $query['terms'] ), $matched_taxonomy );
-                                               } else {
-                                                       $term = get_term_by( $query['field'], reset( $query['terms'] ), $matched_taxonomy );
-                                               }
-                                       }
-                               }
-                       }
-
-                       if ( ! empty( $term ) && ! is_wp_error( $term ) )  {
-                               $this->queried_object = $term;
-                               $this->queried_object_id = (int) $term->term_id;
-
-                               if ( $this->is_category && 'category' === $this->queried_object->taxonomy )
-                                       _make_cat_compat( $this->queried_object );
-                       }
-               } elseif ( $this->is_post_type_archive ) {
-                       $post_type = $this->get( 'post_type' );
-                       if ( is_array( $post_type ) )
-                               $post_type = reset( $post_type );
-                       $this->queried_object = get_post_type_object( $post_type );
-               } elseif ( $this->is_posts_page ) {
-                       $page_for_posts = get_option('page_for_posts');
-                       $this->queried_object = get_post( $page_for_posts );
-                       $this->queried_object_id = (int) $this->queried_object->ID;
-               } elseif ( $this->is_singular && ! empty( $this->post ) ) {
-                       $this->queried_object = $this->post;
-                       $this->queried_object_id = (int) $this->post->ID;
-               } elseif ( $this->is_author ) {
-                       $this->queried_object_id = (int) $this->get('author');
-                       $this->queried_object = get_userdata( $this->queried_object_id );
-               }
-
-               return $this->queried_object;
-       }
-
-       /**
-        * Retrieve ID of the current queried object.
-        *
-        * @since 1.5.0
-        * @access public
-        *
-        * @return int
-        */
-       public function get_queried_object_id() {
-               $this->get_queried_object();
-
-               if ( isset($this->queried_object_id) ) {
-                       return $this->queried_object_id;
-               }
-
-               return 0;
-       }
-
-       /**
-        * Constructor.
-        *
-        * Sets up the WordPress query, if parameter is not empty.
-        *
-        * @since 1.5.0
-        * @access public
-        *
-        * @param string|array $query URL query string or array of vars.
-        */
-       public function __construct($query = '') {
-               if ( ! empty($query) ) {
-                       $this->query($query);
-               }
-       }
-
-       /**
-        * Make private properties readable for backwards compatibility.
-        *
-        * @since 4.0.0
-        * @access public
-        *
-        * @param string $name Property to get.
-        * @return mixed Property.
-        */
-       public function __get( $name ) {
-               if ( in_array( $name, $this->compat_fields ) ) {
-                       return $this->$name;
-               }
-       }
-
-       /**
-        * Make private properties checkable for backwards compatibility.
-        *
-        * @since 4.0.0
-        * @access public
-        *
-        * @param string $name Property to check if set.
-        * @return bool Whether the property is set.
-        */
-       public function __isset( $name ) {
-               if ( in_array( $name, $this->compat_fields ) ) {
-                       return isset( $this->$name );
-               }
-       }
-
-       /**
-        * Make private/protected methods readable for backwards compatibility.
-        *
-        * @since 4.0.0
-        * @access public
-        *
-        * @param callable $name      Method to call.
-        * @param array    $arguments Arguments to pass when calling.
-        * @return mixed|false Return value of the callback, false otherwise.
-        */
-       public function __call( $name, $arguments ) {
-               if ( in_array( $name, $this->compat_methods ) ) {
-                       return call_user_func_array( array( $this, $name ), $arguments );
-               }
-               return false;
-       }
-
-       /**
-        * Is the query for an existing archive page?
-        *
-        * Month, Year, Category, Author, Post Type archive...
-        *
-        * @since 3.1.0
-        *
-        * @return bool
-        */
-       public function is_archive() {
-               return (bool) $this->is_archive;
-       }
-
-       /**
-        * Is the query for an existing post type archive page?
-        *
-        * @since 3.1.0
-        *
-        * @param mixed $post_types Optional. Post type or array of posts types to check against.
-        * @return bool
-        */
-       public function is_post_type_archive( $post_types = '' ) {
-               if ( empty( $post_types ) || ! $this->is_post_type_archive )
-                       return (bool) $this->is_post_type_archive;
-
-               $post_type = $this->get( 'post_type' );
-               if ( is_array( $post_type ) )
-                       $post_type = reset( $post_type );
-               $post_type_object = get_post_type_object( $post_type );
-
-               return in_array( $post_type_object->name, (array) $post_types );
-       }
-
-       /**
-        * Is the query for an existing attachment page?
-        *
-        * @since 3.1.0
-        *
-        * @param mixed $attachment Attachment ID, title, slug, or array of such.
-        * @return bool
-        */
-       public function is_attachment( $attachment = '' ) {
-               if ( ! $this->is_attachment ) {
-                       return false;
-               }
-
-               if ( empty( $attachment ) ) {
-                       return true;
-               }
-
-               $attachment = array_map( 'strval', (array) $attachment );
-
-               $post_obj = $this->get_queried_object();
-
-               if ( in_array( (string) $post_obj->ID, $attachment ) ) {
-                       return true;
-               } elseif ( in_array( $post_obj->post_title, $attachment ) ) {
-                       return true;
-               } elseif ( in_array( $post_obj->post_name, $attachment ) ) {
-                       return true;
-               }
-               return false;
-       }
-
-       /**
-        * 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 3.1.0
-        *
-        * @param mixed $author Optional. User ID, nickname, nicename, or array of User IDs, nicknames, and nicenames
-        * @return bool
-        */
-       public function is_author( $author = '' ) {
-               if ( !$this->is_author )
-                       return false;
-
-               if ( empty($author) )
-                       return true;
-
-               $author_obj = $this->get_queried_object();
-
-               $author = array_map( 'strval', (array) $author );
-
-               if ( in_array( (string) $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;
-       }
-
-       /**
-        * 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 3.1.0
-        *
-        * @param mixed $category Optional. Category ID, name, slug, or array of Category IDs, names, and slugs.
-        * @return bool
-        */
-       public function is_category( $category = '' ) {
-               if ( !$this->is_category )
-                       return false;
-
-               if ( empty($category) )
-                       return true;
-
-               $cat_obj = $this->get_queried_object();
-
-               $category = array_map( 'strval', (array) $category );
-
-               if ( in_array( (string) $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;
-       }
-
-       /**
-        * 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 3.1.0
-        *
-        * @param mixed $tag Optional. Tag ID, name, slug, or array of Tag IDs, names, and slugs.
-        * @return bool
-        */
-       public function is_tag( $tag = '' ) {
-               if ( ! $this->is_tag )
-                       return false;
-
-               if ( empty( $tag ) )
-                       return true;
-
-               $tag_obj = $this->get_queried_object();
-
-               $tag = array_map( 'strval', (array) $tag );
-
-               if ( in_array( (string) $tag_obj->term_id, $tag ) )
-                       return true;
-               elseif ( in_array( $tag_obj->name, $tag ) )
-                       return true;
-               elseif ( in_array( $tag_obj->slug, $tag ) )
-                       return true;
-
-               return false;
-       }
-
-       /**
-        * Is the query for an existing 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 3.1.0
-        *
-        * @global array $wp_taxonomies
-        *
-        * @param mixed $taxonomy Optional. Taxonomy slug or slugs.
-        * @param mixed $term     Optional. Term ID, name, slug or array of Term IDs, names, and slugs.
-        * @return bool
-        */
-       public function is_tax( $taxonomy = '', $term = '' ) {
-               global $wp_taxonomies;
-
-               if ( !$this->is_tax )
-                       return false;
-
-               if ( empty( $taxonomy ) )
-                       return true;
-
-               $queried_object = $this->get_queried_object();
-               $tax_array = array_intersect( array_keys( $wp_taxonomies ), (array) $taxonomy );
-               $term_array = (array) $term;
-
-               // Check that the taxonomy matches.
-               if ( ! ( isset( $queried_object->taxonomy ) && count( $tax_array ) && in_array( $queried_object->taxonomy, $tax_array ) ) )
-                       return false;
-
-               // Only a Taxonomy provided.
-               if ( empty( $term ) )
-                       return true;
-
-               return isset( $queried_object->term_id ) &&
-                       count( array_intersect(
-                               array( $queried_object->term_id, $queried_object->name, $queried_object->slug ),
-                               $term_array
-                       ) );
-       }
-
-       /**
-        * Whether the current URL is within the comments popup window.
-        *
-        * @since 3.1.0
-        * @deprecated 4.5.0
-        *
-        * @return bool
-        */
-       public function is_comments_popup() {
-               _deprecated_function( __FUNCTION__, '4.5' );
-
-               return false;
-       }
-
-       /**
-        * Is the query for an existing date archive?
-        *
-        * @since 3.1.0
-        *
-        * @return bool
-        */
-       public function is_date() {
-               return (bool) $this->is_date;
-       }
-
-       /**
-        * Is the query for an existing day archive?
-        *
-        * @since 3.1.0
-        *
-        * @return bool
-        */
-       public function is_day() {
-               return (bool) $this->is_day;
-       }
-
-       /**
-        * Is the query for a feed?
-        *
-        * @since 3.1.0
-        *
-        * @param string|array $feeds Optional feed types to check.
-        * @return bool
-        */
-       public function is_feed( $feeds = '' ) {
-               if ( empty( $feeds ) || ! $this->is_feed )
-                       return (bool) $this->is_feed;
-               $qv = $this->get( 'feed' );
-               if ( 'feed' == $qv )
-                       $qv = get_default_feed();
-               return in_array( $qv, (array) $feeds );
-       }
-
-       /**
-        * Is the query for a comments feed?
-        *
-        * @since 3.1.0
-        *
-        * @return bool
-        */
-       public function is_comment_feed() {
-               return (bool) $this->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 WP_Query::is_home()
-        *
-        * @since 3.1.0
-        *
-        * @return bool True, if front of site.
-        */
-       public function is_front_page() {
-               // most likely case
-               if ( 'posts' == get_option( 'show_on_front') && $this->is_home() )
-                       return true;
-               elseif ( 'page' == get_option( 'show_on_front') && get_option( 'page_on_front' ) && $this->is_page( get_option( 'page_on_front' ) ) )
-                       return true;
-               else
-                       return false;
-       }
-
-       /**
-        * Is the query for the blog homepage?
-        *
-        * This is the page which shows the time based blog content of your site.
-        *
-        * Depends on the site's "Front page displays" Reading Settings 'show_on_front' and 'page_for_posts'.
-        *
-        * If you set a static page for the front page of your site, this function will return
-        * true only on the page you set as the "Posts page".
-        *
-        * @see WP_Query::is_front_page()
-        *
-        * @since 3.1.0
-        *
-        * @return bool True if blog view homepage.
-        */
-       public function is_home() {
-               return (bool) $this->is_home;
-       }
-
-       /**
-        * Is the query for an existing month archive?
-        *
-        * @since 3.1.0
-        *
-        * @return bool
-        */
-       public function is_month() {
-               return (bool) $this->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 WP_Query::is_single()
-        * @see WP_Query::is_singular()
-        *
-        * @since 3.1.0
-        *
-        * @param int|string|array $page Optional. Page ID, title, slug, path, or array of such. Default empty.
-        * @return bool Whether the query is for an existing single page.
-        */
-       public function is_page( $page = '' ) {
-               if ( !$this->is_page )
-                       return false;
-
-               if ( empty( $page ) )
-                       return true;
-
-               $page_obj = $this->get_queried_object();
-
-               $page = array_map( 'strval', (array) $page );
-
-               if ( in_array( (string) $page_obj->ID, $page ) ) {
-                       return true;
-               } elseif ( in_array( $page_obj->post_title, $page ) ) {
-                       return true;
-               } elseif ( in_array( $page_obj->post_name, $page ) ) {
-                       return true;
-               } else {
-                       foreach ( $page as $pagepath ) {
-                               if ( ! strpos( $pagepath, '/' ) ) {
-                                       continue;
-                               }
-                               $pagepath_obj = get_page_by_path( $pagepath );
-
-                               if ( $pagepath_obj && ( $pagepath_obj->ID == $page_obj->ID ) ) {
-                                       return true;
-                               }
-                       }
-               }
-
-               return false;
-       }
-
-       /**
-        * Is the query for paged result and not for the first page?
-        *
-        * @since 3.1.0
-        *
-        * @return bool
-        */
-       public function is_paged() {
-               return (bool) $this->is_paged;
-       }
-
-       /**
-        * Is the query for a post or page preview?
-        *
-        * @since 3.1.0
-        *
-        * @return bool
-        */
-       public function is_preview() {
-               return (bool) $this->is_preview;
-       }
-
-       /**
-        * Is the query for the robots file?
-        *
-        * @since 3.1.0
-        *
-        * @return bool
-        */
-       public function is_robots() {
-               return (bool) $this->is_robots;
-       }
-
-       /**
-        * Is the query for a search?
-        *
-        * @since 3.1.0
-        *
-        * @return bool
-        */
-       public function is_search() {
-               return (bool) $this->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 WP_Query::is_page()
-        * @see WP_Query::is_singular()
-        *
-        * @since 3.1.0
-        *
-        * @param int|string|array $post Optional. Post ID, title, slug, path, or array of such. Default empty.
-        * @return bool Whether the query is for an existing single post.
-        */
-       public function is_single( $post = '' ) {
-               if ( !$this->is_single )
-                       return false;
-
-               if ( empty($post) )
-                       return true;
-
-               $post_obj = $this->get_queried_object();
-
-               $post = array_map( 'strval', (array) $post );
-
-               if ( in_array( (string) $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;
-               } else {
-                       foreach ( $post as $postpath ) {
-                               if ( ! strpos( $postpath, '/' ) ) {
-                                       continue;
-                               }
-                               $postpath_obj = get_page_by_path( $postpath, OBJECT, $post_obj->post_type );
-
-                               if ( $postpath_obj && ( $postpath_obj->ID == $post_obj->ID ) ) {
-                                       return true;
-                               }
-                       }
-               }
-               return false;
-       }
-
-       /**
-        * 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 WP_Query::is_page()
-        * @see WP_Query::is_single()
-        *
-        * @since 3.1.0
-        *
-        * @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.
-        */
-       public function is_singular( $post_types = '' ) {
-               if ( empty( $post_types ) || !$this->is_singular )
-                       return (bool) $this->is_singular;
-
-               $post_obj = $this->get_queried_object();
-
-               return in_array( $post_obj->post_type, (array) $post_types );
-       }
-
-       /**
-        * Is the query for a specific time?
-        *
-        * @since 3.1.0
-        *
-        * @return bool
-        */
-       public function is_time() {
-               return (bool) $this->is_time;
-       }
-
-       /**
-        * Is the query for a trackback endpoint call?
-        *
-        * @since 3.1.0
-        *
-        * @return bool
-        */
-       public function is_trackback() {
-               return (bool) $this->is_trackback;
-       }
-
-       /**
-        * Is the query for an existing year archive?
-        *
-        * @since 3.1.0
-        *
-        * @return bool
-        */
-       public function is_year() {
-               return (bool) $this->is_year;
-       }
-
-       /**
-        * Is the query a 404 (returns no results)?
-        *
-        * @since 3.1.0
-        *
-        * @return bool
-        */
-       public function is_404() {
-               return (bool) $this->is_404;
-       }
-
-       /**
-        * Is the query for an embedded post?
-        *
-        * @since 4.4.0
-        *
-        * @return bool
-        */
-       public function is_embed() {
-               return (bool) $this->is_embed;
-       }
-
-       /**
-        * Is the query the main query?
-        *
-        * @since 3.3.0
-        *
-        * @global WP_Query $wp_query Global WP_Query instance.
-        *
-        * @return bool
-        */
-       public function is_main_query() {
-               global $wp_the_query;
-               return $wp_the_query === $this;
-       }
-
-       /**
-        * Set up global post data.
-        *
-        * @since 4.1.0
-        * @since 4.4.0 Added the ability to pass a post ID to `$post`.
-        *
-        * @global int             $id
-        * @global WP_User         $authordata
-        * @global string|int|bool $currentday
-        * @global string|int|bool $currentmonth
-        * @global int             $page
-        * @global array           $pages
-        * @global int             $multipage
-        * @global int             $more
-        * @global int             $numpages
-        *
-        * @param WP_Post|object|int $post WP_Post instance or Post ID/object.
-        * @return true True when finished.
-        */
-       public function setup_postdata( $post ) {
-               global $id, $authordata, $currentday, $currentmonth, $page, $pages, $multipage, $more, $numpages;
-
-               if ( ! ( $post instanceof WP_Post ) ) {
-                       $post = get_post( $post );
-               }
-
-               if ( ! $post ) {
-                       return;
-               }
-
-               $id = (int) $post->ID;
-
-               $authordata = get_userdata($post->post_author);
-
-               $currentday = mysql2date('d.m.y', $post->post_date, false);
-               $currentmonth = mysql2date('m', $post->post_date, false);
-               $numpages = 1;
-               $multipage = 0;
-               $page = $this->get( 'page' );
-               if ( ! $page )
-                       $page = 1;
-
-               /*
-                * Force full post content when viewing the permalink for the $post,
-                * or when on an RSS feed. Otherwise respect the 'more' tag.
-                */
-               if ( $post->ID === get_queried_object_id() && ( $this->is_page() || $this->is_single() ) ) {
-                       $more = 1;
-               } elseif ( $this->is_feed() ) {
-                       $more = 1;
-               } else {
-                       $more = 0;
-               }
-
-               $content = $post->post_content;
-               if ( false !== strpos( $content, '<!--nextpage-->' ) ) {
-                       $content = str_replace( "\n<!--nextpage-->\n", '<!--nextpage-->', $content );
-                       $content = str_replace( "\n<!--nextpage-->", '<!--nextpage-->', $content );
-                       $content = str_replace( "<!--nextpage-->\n", '<!--nextpage-->', $content );
-
-                       // Ignore nextpage at the beginning of the content.
-                       if ( 0 === strpos( $content, '<!--nextpage-->' ) )
-                               $content = substr( $content, 15 );
-
-                       $pages = explode('<!--nextpage-->', $content);
-               } else {
-                       $pages = array( $post->post_content );
-               }
-
-               /**
-                * Filter the "pages" derived from splitting the post content.
-                *
-                * "Pages" are determined by splitting the post content based on the presence
-                * of `<!-- nextpage -->` tags.
-                *
-                * @since 4.4.0
-                *
-                * @param array   $pages Array of "pages" derived from the post content.
-                *                       of `<!-- nextpage -->` tags..
-                * @param WP_Post $post  Current post object.
-                */
-               $pages = apply_filters( 'content_pagination', $pages, $post );
-
-               $numpages = count( $pages );
-
-               if ( $numpages > 1 ) {
-                       if ( $page > 1 ) {
-                               $more = 1;
-                       }
-                       $multipage = 1;
-               } else {
-                       $multipage = 0;
-               }
-
-               /**
-                * Fires once the post data has been setup.
-                *
-                * @since 2.8.0
-                * @since 4.1.0 Introduced `$this` parameter.
-                *
-                * @param WP_Post  &$post The Post object (passed by reference).
-                * @param WP_Query &$this The current Query object (passed by reference).
-                */
-               do_action_ref_array( 'the_post', array( &$post, &$this ) );
-
-               return true;
-       }
-       /**
-        * After looping through a nested query, this function
-        * restores the $post global to the current post in this query.
-        *
-        * @since 3.7.0
-        *
-        * @global WP_Post $post
-        */
-       public function reset_postdata() {
-               if ( ! empty( $this->post ) ) {
-                       $GLOBALS['post'] = $this->post;
-                       $this->setup_postdata( $this->post );
-               }
-       }
-
-       /**
-        * Lazyload term meta for posts in the loop.
-        *
-        * @since 4.4.0
-        * @deprecated 4.5.0 See wp_queue_posts_for_term_meta_lazyload().
-        *
-        * @param mixed $check
-        * @param int   $term_id
-        * @return mixed
-        */
-       public function lazyload_term_meta( $check, $term_id ) {
-               _deprecated_function( __METHOD__, '4.5.0' );
-               return $check;
-       }
-
-       /**
-        * Lazyload comment meta for comments in the loop.
-        *
-        * @since 4.4.0
-        * @deprecated 4.5.0 See wp_queue_comments_for_comment_meta_lazyload().
-        *
-        * @param mixed $check
-        * @param int   $comment_id
-        * @return mixed
-        */
-       public function lazyload_comment_meta( $check, $comment_id ) {
-               _deprecated_function( __METHOD__, '4.5.0' );
-               return $check;
-       }
-}
-
-/**
- * Redirect old slugs to the correct permalink.
- *
- * Attempts to find the current slug from the past slugs.
- *
- * @since 2.1.0
- *
- * @global WP_Query   $wp_query   Global WP_Query instance.
- * @global wpdb       $wpdb       WordPress database abstraction object.
- */
-function wp_old_slug_redirect() {
-       global $wp_query;
-
-       if ( is_404() && '' !== $wp_query->query_vars['name'] ) :
-               global $wpdb;
-
-               // 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 ( ! empty( $wp_query->query_vars['pagename'] ) ) {
-                       $post_type = 'page';
-               } else {
-                       $post_type = 'post';
-               }
-
-               if ( is_array( $post_type ) ) {
-                       if ( count( $post_type ) > 1 )
-                               return;
-                       $post_type = reset( $post_type );
-               }
-
-               // Do not attempt redirect for hierarchical post types
-               if ( is_post_type_hierarchical( $post_type ) )
-                       return;
-
-               $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, $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 .= $wpdb->prepare(" AND YEAR(post_date) = %d", $wp_query->query_vars['year']);
-               if ( '' != $wp_query->query_vars['monthnum'] )
-                       $query .= $wpdb->prepare(" AND MONTH(post_date) = %d", $wp_query->query_vars['monthnum']);
-               if ( '' != $wp_query->query_vars['day'] )
-                       $query .= $wpdb->prepare(" AND DAYOFMONTH(post_date) = %d", $wp_query->query_vars['day']);
-
-               $id = (int) $wpdb->get_var($query);
-
-               if ( ! $id )
-                       return;
-
-               $link = get_permalink( $id );
-
-               if ( isset( $GLOBALS['wp_query']->query_vars['paged'] ) && $GLOBALS['wp_query']->query_vars['paged'] > 1 ) {
-                       $link = user_trailingslashit( trailingslashit( $link ) . 'page/' . $GLOBALS['wp_query']->query_vars['paged'] );
-               } elseif( is_embed() ) {
-                       $link = user_trailingslashit( trailingslashit( $link ) . 'embed' );
-               }
-
-               /**
-                * Filter the old slug redirect URL.
-                *
-                * @since 4.4.0
-                *
-                * @param string $link The redirect URL.
-                */
-               $link = apply_filters( 'old_slug_redirect_url', $link );
-
-               if ( ! $link ) {
-                       return;
-               }
-
-               wp_redirect( $link, 301 ); // Permanent redirect
-               exit;
-       endif;
 }
 
 /**