256 lines
7.3 KiB
PHP
256 lines
7.3 KiB
PHP
<?php
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/**
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* Sitemaps: WP_Sitemaps_Posts class
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*
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* Builds the sitemaps for the 'post' object type.
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*
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* @package WordPress
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* @subpackage Sitemaps
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* @since 5.5.0
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*/
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/**
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* Posts XML sitemap provider.
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*
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* @since 5.5.0
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*/
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class WP_Sitemaps_Posts extends WP_Sitemaps_Provider {
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/**
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* WP_Sitemaps_Posts constructor.
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*
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* @since 5.5.0
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*/
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public function __construct() {
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$this->name = 'posts';
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$this->object_type = 'post';
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}
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/**
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* Returns the public post types, which excludes nav_items and similar types.
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* Attachments are also excluded. This includes custom post types with public = true.
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*
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* @since 5.5.0
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*
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* @return WP_Post_Type[] Array of registered post type objects keyed by their name.
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*/
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public function get_object_subtypes() {
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$post_types = get_post_types( array( 'public' => true ), 'objects' );
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unset( $post_types['attachment'] );
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$post_types = array_filter( $post_types, 'is_post_type_viewable' );
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/**
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* Filters the list of post object sub types available within the sitemap.
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*
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* @since 5.5.0
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*
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* @param WP_Post_Type[] $post_types Array of registered post type objects keyed by their name.
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*/
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return apply_filters( 'wp_sitemaps_post_types', $post_types );
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}
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/**
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* Gets a URL list for a post type sitemap.
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*
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* @since 5.5.0
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* @since 5.9.0 Renamed `$post_type` to `$object_subtype` to match parent class
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* for PHP 8 named parameter support.
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*
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* @param int $page_num Page of results.
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* @param string $object_subtype Optional. Post type name. Default empty.
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*
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* @return array[] Array of URL information for a sitemap.
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*/
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public function get_url_list( $page_num, $object_subtype = '' ) {
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// Restores the more descriptive, specific name for use within this method.
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$post_type = $object_subtype;
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// Bail early if the queried post type is not supported.
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$supported_types = $this->get_object_subtypes();
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if ( ! isset( $supported_types[ $post_type ] ) ) {
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return array();
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}
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/**
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* Filters the posts URL list before it is generated.
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*
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* Returning a non-null value will effectively short-circuit the generation,
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* returning that value instead.
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*
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* @since 5.5.0
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*
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* @param array[]|null $url_list The URL list. Default null.
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* @param string $post_type Post type name.
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* @param int $page_num Page of results.
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*/
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$url_list = apply_filters(
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'wp_sitemaps_posts_pre_url_list',
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null,
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$post_type,
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$page_num
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);
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if ( null !== $url_list ) {
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return $url_list;
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}
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$args = $this->get_posts_query_args( $post_type );
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$args['paged'] = $page_num;
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$query = new WP_Query( $args );
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$url_list = array();
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/*
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* Add a URL for the homepage in the pages sitemap.
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* Shows only on the first page if the reading settings are set to display latest posts.
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*/
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if ( 'page' === $post_type && 1 === $page_num && 'posts' === get_option( 'show_on_front' ) ) {
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// Extract the data needed for home URL to add to the array.
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$sitemap_entry = array(
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'loc' => home_url( '/' ),
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);
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/*
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* Get the most recent posts displayed on the homepage,
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* and then sort them by their modified date to find
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* the date the homepage was approximately last updated.
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*/
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$latest_posts = new WP_Query(
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array(
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'post_type' => 'post',
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'post_status' => 'publish',
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'orderby' => 'date',
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'order' => 'DESC',
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'no_found_rows' => true,
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'update_post_meta_cache' => false,
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'update_post_term_cache' => false,
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)
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);
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if ( ! empty( $latest_posts->posts ) ) {
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$posts = wp_list_sort( $latest_posts->posts, 'post_modified_gmt', 'DESC' );
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$sitemap_entry['lastmod'] = wp_date( DATE_W3C, strtotime( $posts[0]->post_modified_gmt ) );
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}
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/**
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* Filters the sitemap entry for the home page when the 'show_on_front' option equals 'posts'.
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*
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* @since 5.5.0
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*
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* @param array $sitemap_entry Sitemap entry for the home page.
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*/
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$sitemap_entry = apply_filters( 'wp_sitemaps_posts_show_on_front_entry', $sitemap_entry );
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$url_list[] = $sitemap_entry;
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}
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foreach ( $query->posts as $post ) {
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$sitemap_entry = array(
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'loc' => get_permalink( $post ),
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'lastmod' => wp_date( DATE_W3C, strtotime( $post->post_modified_gmt ) ),
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);
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/**
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* Filters the sitemap entry for an individual post.
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*
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* @since 5.5.0
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*
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* @param array $sitemap_entry Sitemap entry for the post.
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* @param WP_Post $post Post object.
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* @param string $post_type Name of the post_type.
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*/
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$sitemap_entry = apply_filters( 'wp_sitemaps_posts_entry', $sitemap_entry, $post, $post_type );
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$url_list[] = $sitemap_entry;
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}
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return $url_list;
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}
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/**
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* Gets the max number of pages available for the object type.
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*
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* @since 5.5.0
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* @since 5.9.0 Renamed `$post_type` to `$object_subtype` to match parent class
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* for PHP 8 named parameter support.
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*
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* @param string $object_subtype Optional. Post type name. Default empty.
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* @return int Total number of pages.
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*/
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public function get_max_num_pages( $object_subtype = '' ) {
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if ( empty( $object_subtype ) ) {
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return 0;
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}
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// Restores the more descriptive, specific name for use within this method.
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$post_type = $object_subtype;
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/**
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* Filters the max number of pages before it is generated.
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*
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* Passing a non-null value will short-circuit the generation,
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* returning that value instead.
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*
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* @since 5.5.0
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*
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* @param int|null $max_num_pages The maximum number of pages. Default null.
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* @param string $post_type Post type name.
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*/
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$max_num_pages = apply_filters( 'wp_sitemaps_posts_pre_max_num_pages', null, $post_type );
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if ( null !== $max_num_pages ) {
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return $max_num_pages;
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}
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$args = $this->get_posts_query_args( $post_type );
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$args['fields'] = 'ids';
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$args['no_found_rows'] = false;
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$query = new WP_Query( $args );
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$min_num_pages = ( 'page' === $post_type && 'posts' === get_option( 'show_on_front' ) ) ? 1 : 0;
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return isset( $query->max_num_pages ) ? max( $min_num_pages, $query->max_num_pages ) : 1;
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}
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/**
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* Returns the query args for retrieving posts to list in the sitemap.
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*
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* @since 5.5.0
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* @since 6.1.0 Added `ignore_sticky_posts` default parameter.
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*
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* @param string $post_type Post type name.
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* @return array Array of WP_Query arguments.
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*/
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protected function get_posts_query_args( $post_type ) {
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/**
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* Filters the query arguments for post type sitemap queries.
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*
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* @see WP_Query for a full list of arguments.
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*
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* @since 5.5.0
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* @since 6.1.0 Added `ignore_sticky_posts` default parameter.
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*
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* @param array $args Array of WP_Query arguments.
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* @param string $post_type Post type name.
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*/
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$args = apply_filters(
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'wp_sitemaps_posts_query_args',
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array(
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'orderby' => 'ID',
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'order' => 'ASC',
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'post_type' => $post_type,
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'posts_per_page' => wp_sitemaps_get_max_urls( $this->object_type ),
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'post_status' => array( 'publish' ),
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'no_found_rows' => true,
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'update_post_term_cache' => false,
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'update_post_meta_cache' => false,
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'ignore_sticky_posts' => true, // Sticky posts will still appear, but they won't be moved to the front.
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),
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$post_type
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);
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return $args;
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}
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}
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