--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-includes/class-wp-query.php Mon Oct 14 17:39:30 2019 +0200
@@ -0,0 +1,4094 @@
+<?php
+/**
+ * Query API: WP_Query class
+ *
+ * @package WordPress
+ * @subpackage Query
+ * @since 4.7.0
+ */
+
+/**
+ * The WordPress Query class.
+ *
+ * @link https://codex.wordpress.org/Function_Reference/WP_Query Codex page.
+ *
+ * @since 1.5.0
+ * @since 4.5.0 Removed the `$comments_popup` property.
+ */
+class WP_Query {
+
+ /**
+ * Query vars set by the user
+ *
+ * @since 1.5.0
+ * @var array
+ */
+ public $query;
+
+ /**
+ * Query vars, after parsing
+ *
+ * @since 1.5.0
+ * @var array
+ */
+ public $query_vars = array();
+
+ /**
+ * Taxonomy query, as passed to get_tax_sql()
+ *
+ * @since 3.1.0
+ * @var object WP_Tax_Query
+ */
+ public $tax_query;
+
+ /**
+ * Metadata query container
+ *
+ * @since 3.2.0
+ * @var object WP_Meta_Query
+ */
+ public $meta_query = false;
+
+ /**
+ * Date query container
+ *
+ * @since 3.7.0
+ * @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
+ * @var object|array
+ */
+ public $queried_object;
+
+ /**
+ * The ID of the queried object.
+ *
+ * @since 1.5.0
+ * @var int
+ */
+ public $queried_object_id;
+
+ /**
+ * Get post database query.
+ *
+ * @since 2.0.1
+ * @var string
+ */
+ public $request;
+
+ /**
+ * List of posts.
+ *
+ * @since 1.5.0
+ * @var array
+ */
+ public $posts;
+
+ /**
+ * The amount of posts for the current query.
+ *
+ * @since 1.5.0
+ * @var int
+ */
+ public $post_count = 0;
+
+ /**
+ * Index of the current item in the loop.
+ *
+ * @since 1.5.0
+ * @var int
+ */
+ public $current_post = -1;
+
+ /**
+ * Whether the loop has started and the caller is in the loop.
+ *
+ * @since 2.0.0
+ * @var bool
+ */
+ public $in_the_loop = false;
+
+ /**
+ * The current post.
+ *
+ * @since 1.5.0
+ * @var WP_Post
+ */
+ public $post;
+
+ /**
+ * The list of comments for current post.
+ *
+ * @since 2.2.0
+ * @var array
+ */
+ public $comments;
+
+ /**
+ * The amount of comments for the posts.
+ *
+ * @since 2.2.0
+ * @var int
+ */
+ public $comment_count = 0;
+
+ /**
+ * The index of the comment in the comment loop.
+ *
+ * @since 2.2.0
+ * @var int
+ */
+ public $current_comment = -1;
+
+ /**
+ * Current comment ID.
+ *
+ * @since 2.2.0
+ * @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
+ * @var int
+ */
+ public $found_posts = 0;
+
+ /**
+ * The amount of pages.
+ *
+ * @since 2.1.0
+ * @var int
+ */
+ public $max_num_pages = 0;
+
+ /**
+ * The amount of comment pages.
+ *
+ * @since 2.7.0
+ * @var int
+ */
+ public $max_num_comment_pages = 0;
+
+ /**
+ * Signifies whether the current query is for a single post.
+ *
+ * @since 1.5.0
+ * @var bool
+ */
+ public $is_single = false;
+
+ /**
+ * Signifies whether the current query is for a preview.
+ *
+ * @since 2.0.0
+ * @var bool
+ */
+ public $is_preview = false;
+
+ /**
+ * Signifies whether the current query is for a page.
+ *
+ * @since 1.5.0
+ * @var bool
+ */
+ public $is_page = false;
+
+ /**
+ * Signifies whether the current query is for an archive.
+ *
+ * @since 1.5.0
+ * @var bool
+ */
+ public $is_archive = false;
+
+ /**
+ * Signifies whether the current query is for a date archive.
+ *
+ * @since 1.5.0
+ * @var bool
+ */
+ public $is_date = false;
+
+ /**
+ * Signifies whether the current query is for a year archive.
+ *
+ * @since 1.5.0
+ * @var bool
+ */
+ public $is_year = false;
+
+ /**
+ * Signifies whether the current query is for a month archive.
+ *
+ * @since 1.5.0
+ * @var bool
+ */
+ public $is_month = false;
+
+ /**
+ * Signifies whether the current query is for a day archive.
+ *
+ * @since 1.5.0
+ * @var bool
+ */
+ public $is_day = false;
+
+ /**
+ * Signifies whether the current query is for a specific time.
+ *
+ * @since 1.5.0
+ * @var bool
+ */
+ public $is_time = false;
+
+ /**
+ * Signifies whether the current query is for an author archive.
+ *
+ * @since 1.5.0
+ * @var bool
+ */
+ public $is_author = false;
+
+ /**
+ * Signifies whether the current query is for a category archive.
+ *
+ * @since 1.5.0
+ * @var bool
+ */
+ public $is_category = false;
+
+ /**
+ * Signifies whether the current query is for a tag archive.
+ *
+ * @since 2.3.0
+ * @var bool
+ */
+ public $is_tag = false;
+
+ /**
+ * Signifies whether the current query is for a taxonomy archive.
+ *
+ * @since 2.5.0
+ * @var bool
+ */
+ public $is_tax = false;
+
+ /**
+ * Signifies whether the current query is for a search.
+ *
+ * @since 1.5.0
+ * @var bool
+ */
+ public $is_search = false;
+
+ /**
+ * Signifies whether the current query is for a feed.
+ *
+ * @since 1.5.0
+ * @var bool
+ */
+ public $is_feed = false;
+
+ /**
+ * Signifies whether the current query is for a comment feed.
+ *
+ * @since 2.2.0
+ * @var bool
+ */
+ public $is_comment_feed = false;
+
+ /**
+ * Signifies whether the current query is for trackback endpoint call.
+ *
+ * @since 1.5.0
+ * @var bool
+ */
+ public $is_trackback = false;
+
+ /**
+ * Signifies whether the current query is for the site homepage.
+ *
+ * @since 1.5.0
+ * @var bool
+ */
+ public $is_home = false;
+
+ /**
+ * Signifies whether the current query couldn't find anything.
+ *
+ * @since 1.5.0
+ * @var bool
+ */
+ public $is_404 = false;
+
+ /**
+ * Signifies whether the current query is for an embed.
+ *
+ * @since 4.4.0
+ * @var bool
+ */
+ public $is_embed = false;
+
+ /**
+ * Signifies whether the current query is for a paged result and not for the first page.
+ *
+ * @since 1.5.0
+ * @var bool
+ */
+ public $is_paged = false;
+
+ /**
+ * Signifies whether the current query is for an administrative interface page.
+ *
+ * @since 1.5.0
+ * @var bool
+ */
+ public $is_admin = false;
+
+ /**
+ * Signifies whether the current query is for an attachment page.
+ *
+ * @since 2.0.0
+ * @var bool
+ */
+ public $is_attachment = false;
+
+ /**
+ * Signifies whether the current query is for an existing single post of any post type
+ * (post, attachment, page, custom post types).
+ *
+ * @since 2.1.0
+ * @var bool
+ */
+ public $is_singular = false;
+
+ /**
+ * Signifies whether the current query is for the robots.txt file.
+ *
+ * @since 2.1.0
+ * @var bool
+ */
+ public $is_robots = false;
+
+ /**
+ * Signifies whether the current query is for the page_for_posts page.
+ *
+ * Basically, the homepage if the option isn't set for the static homepage.
+ *
+ * @since 2.1.0
+ * @var bool
+ */
+ public $is_posts_page = false;
+
+ /**
+ * Signifies whether the current query is for a post type archive.
+ *
+ * @since 3.1.0
+ * @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
+ * @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
+ */
+ private $query_vars_changed = true;
+
+ /**
+ * Set if post thumbnails are cached
+ *
+ * @since 3.2.0
+ * @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
+ */
+ 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;
+ $this->is_post_type_archive = false;
+ }
+
+ /**
+ * Initiates object properties and sets default values.
+ *
+ * @since 1.5.0
+ */
+ public function init() {
+ unset($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
+ */
+ 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.
+ *
+ * @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.
+ * @since 4.6.0 Added 'post_name__in' support for `$orderby`. Introduced the `$lazy_load_term_meta` argument.
+ * @since 4.9.0 Introduced the `$comment_count` parameter.
+ *
+ * @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 array|int $comment_count Filter results by comment count. Provide an integer to match
+ * comment count exactly. Provide an array with integer 'value'
+ * and 'compare' operator ('=', '!=', '>', '>=', '<', '<=' ) to
+ * compare against comment_count in a specific way.
+ * @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.
+ * Accepts 'none', 'name', 'author', 'date', 'title',
+ * 'modified', 'menu_order', 'parent', 'ID', 'rand',
+ * 'relevance', 'RAND(x)' (where 'x' is an integer seed value),
+ * 'comment_count', 'meta_value', 'meta_value_num', 'post__in',
+ * 'post_name__in', 'post_parent__in', and the array keys
+ * of `$meta_query`. Default is 'date', except when a search
+ * is being performed, when the default is 'relevance'.
+ *
+ * @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'. The
+ * character used for exclusion can be modified using the
+ * the 'wp_query_search_exclusion_prefix' filter.
+ * @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 bool $lazy_load_term_meta Whether to lazy-load term meta. Setting to false will
+ * disable cache priming for term meta, so that each
+ * get_term_meta() call will hit the database.
+ * Defaults to the value of `$update_post_term_cache`.
+ * @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;
+
+ if ( ! is_scalar( $qv['p'] ) || $qv['p'] < 0 ) {
+ $qv['p'] = 0;
+ $qv['error'] = '404';
+ } else {
+ $qv['p'] = intval( $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'] = is_scalar( $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 ) );
+ }
+
+ /**
+ * Parses various taxonomy related query vars.
+ *
+ * For BC, this method is not marked as protected. See [28987].
+ *
+ * @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'];
+ } 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'] );
+ }
+
+ // 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
+ );
+ }
+ 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' => $q['category__not_in'],
+ 'operator' => 'NOT IN',
+ 'include_children' => false
+ );
+ }
+
+ if ( ! empty($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
+ );
+ }
+
+ // If querystring 'tag' is array, implode it.
+ if ( is_array( $q['tag'] ) ) {
+ $q['tag'] = implode( ',', $q['tag'] );
+ }
+
+ // 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'][] = $q['tag'];
+ }
+ }
+
+ if ( !empty($q['tag_id']) ) {
+ $q['tag_id'] = absint( $q['tag_id'] );
+ $tax_query[] = array(
+ 'taxonomy' => 'post_tag',
+ 'terms' => $q['tag_id']
+ );
+ }
+
+ if ( !empty($q['tag__in']) ) {
+ $q['tag__in'] = array_map('absint', array_unique( (array) $q['tag__in'] ) );
+ $tax_query[] = array(
+ 'taxonomy' => 'post_tag',
+ 'terms' => $q['tag__in']
+ );
+ }
+
+ if ( !empty($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' => $q['tag__not_in'],
+ 'operator' => 'NOT IN'
+ );
+ }
+
+ if ( !empty($q['tag__and']) ) {
+ $q['tag__and'] = array_map('absint', array_unique( (array) $q['tag__and'] ) );
+ $tax_query[] = array(
+ 'taxonomy' => 'post_tag',
+ 'terms' => $q['tag__and'],
+ 'operator' => 'AND'
+ );
+ }
+
+ if ( !empty($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' => $q['tag_slug__in'],
+ 'field' => 'slug'
+ );
+ }
+
+ if ( !empty($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'
+ );
+ }
+
+ $this->tax_query = new WP_Tax_Query( $tax_query );
+
+ /**
+ * Fires after taxonomy-related query vars have been parsed.
+ *
+ * @since 3.7.0
+ *
+ * @param WP_Query $this The WP_Query instance.
+ */
+ do_action( 'parse_tax_query', $this );
+ }
+
+ /**
+ * Generates 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();
+
+ /**
+ * Filters the prefix that indicates that a search term should be excluded from results.
+ *
+ * @since 4.7.0
+ *
+ * @param string $exclusion_prefix The prefix. Default '-'. Returning
+ * an empty value disables exclusions.
+ */
+ $exclusion_prefix = apply_filters( 'wp_query_search_exclusion_prefix', '-' );
+
+ foreach ( $q['search_terms'] as $term ) {
+ // If there is an $exclusion_prefix, terms prefixed with it should be excluded.
+ $exclude = $exclusion_prefix && ( $exclusion_prefix === substr( $term, 0, 1 ) );
+ if ( $exclude ) {
+ $like_op = 'NOT LIKE';
+ $andor_op = 'AND';
+ $term = substr( $term, 1 );
+ } else {
+ $like_op = 'LIKE';
+ $andor_op = 'OR';
+ }
+
+ if ( $n && ! $exclude ) {
+ $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;
+
+ $checked[] = $term;
+ }
+
+ return $checked;
+ }
+
+ /**
+ * 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;
+ }
+
+ /**
+ * Filters 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;
+ }
+
+ /**
+ * Generates SQL for the ORDER BY condition based on passed search terms.
+ *
+ * @since 3.7.0
+ *
+ * @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;
+ }
+
+ /**
+ * Converts the given orderby alias (if allowed) to a properly-prefixed value.
+ *
+ * @since 4.0.0
+ *
+ * @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
+ *
+ * @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
+ */
+ 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.
+ *
+ *
+ * @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
+ *
+ * @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
+ *
+ * @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( $q['caller_get_posts'] ) ) {
+ _deprecated_argument( 'WP_Query', '3.1.0',
+ /* translators: 1: caller_get_posts, 2: ignore_sticky_posts */
+ sprintf( __( '%1$s is deprecated. Use %2$s instead.' ),
+ '<code>caller_get_posts</code>',
+ '<code>ignore_sticky_posts</code>'
+ )
+ );
+
+ 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['lazy_load_term_meta'] ) ) {
+ $q['lazy_load_term_meta'] = $q['update_post_term_cache'];
+ }
+
+ if ( !isset($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'] );
+ $post_name__in = "'" . implode( "','", $q['post_name__in'] ) . "'";
+ $where .= " AND {$wpdb->posts}.post_name IN ($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'] ) {
+ /**
+ * Filters 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']) . ')';
+ }
+
+ // Matching by comment count.
+ if ( isset( $q['comment_count'] ) ) {
+ // Numeric comment count is converted to array format.
+ if ( is_numeric( $q['comment_count'] ) ) {
+ $q['comment_count'] = array(
+ 'value' => intval( $q['comment_count'] ),
+ );
+ }
+
+ if ( isset( $q['comment_count']['value'] ) ) {
+ $q['comment_count'] = array_merge( array(
+ 'compare' => '=',
+ ), $q['comment_count'] );
+
+ // Fallback for invalid compare operators is '='.
+ $compare_operators = array( '=', '!=', '>', '>=', '<', '<=' );
+ if ( ! in_array( $q['comment_count']['compare'], $compare_operators, true ) ) {
+ $q['comment_count']['compare'] = '=';
+ }
+
+ $where .= $wpdb->prepare( " AND {$wpdb->posts}.comment_count {$q['comment_count']['compare']} %d", $q['comment_count']['value'] );
+ }
+ }
+
+ // 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 )";
+ } elseif ( $q['orderby'] == 'post_name__in' && ! empty( $post_name__in ) ) {
+ $orderby = "FIELD( {$wpdb->posts}.post_name, $post_name__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'] ) {
+ /**
+ * Filters 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( "', '", array_map( 'esc_sql', $in_search_post_types ) ) . "')";
+ }
+ } elseif ( !empty( $post_type ) && is_array( $post_type ) ) {
+ $where .= " AND {$wpdb->posts}.post_type IN ('" . join("', '", esc_sql( $post_type ) ) . "')";
+ } elseif ( ! empty( $post_type ) ) {
+ $where .= $wpdb->prepare( " AND {$wpdb->posts}.post_type = %s", $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'] ) {
+ /**
+ * Filters 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 ) );
+
+ /**
+ * Filters the JOIN clause of the query.
+ *
+ * @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', 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' AND post_type = 'attachment' ) ) AND comment_approved = '1'";
+ $cgroupby = '';
+ }
+
+ if ( !$q['suppress_filters'] ) {
+ /**
+ * Filters 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 ) );
+
+ /**
+ * Filters 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 ) );
+
+ /**
+ * Filters 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 ) );
+
+ /**
+ * Filters 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 ) );
+
+ /**
+ * Filters 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'] ) {
+ /**
+ * Filters 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 ) );
+
+ /**
+ * Filters 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 ) );
+
+ /**
+ * Filters 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 ) );
+
+ /**
+ * Filters 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 ) );
+
+ /**
+ * Filters 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 ) );
+
+ /**
+ * Filters 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 ) );
+
+ /**
+ * Filters 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 ) );
+
+ /**
+ * Filters 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 . $join );
+
+ /*
+ * Filters again for the benefit of caching plugins.
+ * Regular plugins should use the hooks above.
+ */
+ if ( !$q['suppress_filters'] ) {
+ /**
+ * Filters 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 ) );
+
+ /**
+ * Filters 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 ) );
+
+ /**
+ * Filters 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 ) );
+
+ /**
+ * Filters 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 ) );
+
+ /**
+ * Filters 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 ) );
+
+ /**
+ * Filters 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 ) );
+
+ /**
+ * Filters 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 ) );
+
+ /**
+ * Filters 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'] ) {
+ /**
+ * Filters the completed SQL query before sending.
+ *
+ * @since 2.0.0
+ *
+ * @param string $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 ) );
+ }
+
+ /**
+ * Filters the posts array before the query takes place.
+ *
+ * Return a non-null value to bypass WordPress's default post queries.
+ *
+ * Filtering functions that require pagination information are encouraged to set
+ * the `found_posts` and `max_num_pages` properties of the WP_Query object,
+ * passed to the filter by reference. If WP_Query does not perform a database
+ * query, it will not have enough information to generate these values itself.
+ *
+ * @since 4.6.0
+ *
+ * @param array|null $posts Return an array of post data to short-circuit WP's query,
+ * or null to allow WP to run its normal queries.
+ * @param WP_Query $this The WP_Query instance (passed by reference).
+ */
+ $this->posts = apply_filters_ref_array( 'posts_pre_query', array( null, &$this ) );
+
+ if ( 'ids' == $q['fields'] ) {
+ if ( null === $this->posts ) {
+ $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'] ) {
+ if ( null === $this->posts ) {
+ $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;
+ }
+
+ if ( null === $this->posts ) {
+ $split_the_query = ( $old_request == $this->request && "{$wpdb->posts}.*" == $fields && !empty( $limits ) && $q['posts_per_page'] < 500 );
+
+ /**
+ * Filters 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";
+
+ /**
+ * Filters 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'] ) {
+ /**
+ * Filters 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 ) ) {
+ /**
+ * Filters 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'] ) {
+ /**
+ * Filters 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['lazy_load_term_meta'] ) {
+ 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
+ *
+ * @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 ) ) {
+ /**
+ * Filters 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 {
+ if ( is_array( $this->posts ) ) {
+ $this->found_posts = count( $this->posts );
+ } else {
+ if ( null === $this->posts ) {
+ $this->found_posts = 0;
+ } else {
+ $this->found_posts = 1;
+ }
+ }
+ }
+
+ /**
+ * Filters 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
+ *
+ * @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
+ *
+ * @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 );
+ }
+
+ /**
+ * Determines whether there are more posts available in the loop.
+ *
+ * Calls the {@see 'loop_end'} action when the loop is complete.
+ *
+ * @since 1.5.0
+ *
+ * @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();
+ } elseif ( 0 === $this->post_count ) {
+ /**
+ * Fires if no results are found in a post query.
+ *
+ * @since 4.9.0
+ *
+ * @param WP_Query $this The WP_Query instance.
+ */
+ do_action( 'loop_no_results', $this );
+ }
+
+ $this->in_the_loop = false;
+ return false;
+ }
+
+ /**
+ * Rewind the posts and reset post index.
+ *
+ * @since 1.5.0
+ */
+ 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
+ *
+ * @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
+ * @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
+ *
+ * @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
+ */
+ 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
+ *
+ * @param string|array $query URL query string or array of query arguments.
+ * @return array List of posts.
+ */
+ public function query( $query ) {
+ $this->init();
+ $this->query = $this->query_vars = wp_parse_args( $query );
+ return $this->get_posts();
+ }
+
+ /**
+ * Retrieve queried object.
+ *
+ * If queried object is not set, then the queried object will be set from
+ * the category, tag, taxonomy, posts page, single post, page, or author
+ * query variable. After it is set up, it will be returned.
+ *
+ * @since 1.5.0
+ *
+ * @return object
+ */
+ public function get_queried_object() {
+ if ( isset($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.
+ if ( ! empty( $this->tax_query->queried_terms ) ) {
+ $queried_taxonomies = array_keys( $this->tax_query->queried_terms );
+ $matched_taxonomy = reset( $queried_taxonomies );
+ $query = $this->tax_query->queried_terms[ $matched_taxonomy ];
+
+ if ( ! empty( $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
+ *
+ * @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
+ *
+ * @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 backward compatibility.
+ *
+ * @since 4.0.0
+ *
+ * @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 backward compatibility.
+ *
+ * @since 4.0.0
+ *
+ * @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 backward compatibility.
+ *
+ * @since 4.0.0
+ *
+ * @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 custom taxonomy archive page?
+ *
+ * If the $taxonomy parameter is specified, this function will additionally
+ * check if the query is for that specific $taxonomy.
+ *
+ * If the $term parameter is specified in addition to the $taxonomy parameter,
+ * this function will additionally check if the query is for one of the terms
+ * specified.
+ *
+ * @since 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 True for custom taxonomy archive pages, false for built-in taxonomies (category and tag archives).
+ */
+ 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__, '4.5.0' );
+
+ 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 excluding 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,
+ * custom post types)?
+ *
+ * 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 );
+ }
+
+ /**
+ * Filters 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;
+ }
+}