WP_Post $post Post object. */ do_action( 'clean_post_cache', $post->ID, $post ); if ( 'page' == $post->post_type ) { wp_cache_delete( 'all_page_ids', 'posts' ); /** * Fires immediately after the given page's cache is cleaned. * * @since 2.5.0 * * @param int $post_id Post ID. */ do_action( 'clean_page_cache', $post->ID ); } wp_cache_set( 'last_changed', microtime(), 'posts' ); } /** * Call major cache updating functions for list of Post objects. * * @since 1.5.0 * * @param array $posts Array of Post objects * @param string $post_type Optional. Post type. Default 'post'. * @param bool $update_term_cache Optional. Whether to update the term cache. Default true. * @param bool $update_meta_cache Optional. Whether to update the meta cache. Default true. */ function update_post_caches( &$posts, $post_type = 'post', $update_term_cache = true, $update_meta_cache = true ) { // No point in doing all this work if we didn't match any posts. if ( ! $posts ) { return; } update_post_cache( $posts ); $post_ids = array(); foreach ( $posts as $post ) { $post_ids[] = $post->ID; } if ( ! $post_type ) { $post_type = 'any'; } if ( $update_term_cache ) { if ( is_array( $post_type ) ) { $ptypes = $post_type; } elseif ( 'any' == $post_type ) { $ptypes = array(); // Just use the post_types in the supplied posts. foreach ( $posts as $post ) { $ptypes[] = $post->post_type; } $ptypes = array_unique( $ptypes ); } else { $ptypes = array( $post_type ); } if ( ! empty( $ptypes ) ) { update_object_term_cache( $post_ids, $ptypes ); } } if ( $update_meta_cache ) { update_postmeta_cache( $post_ids ); } } /** * Updates metadata cache for list of post IDs. * * Performs SQL query to retrieve the metadata for the post IDs and updates the * metadata cache for the posts. Therefore, the functions, which call this * function, do not need to perform SQL queries on their own. * * @since 2.1.0 * * @param array $post_ids List of post IDs. * @return array|false Returns false if there is nothing to update or an array * of metadata. */ function update_postmeta_cache( $post_ids ) { return update_meta_cache( 'post', $post_ids ); } /** * Will clean the attachment in the cache. * * Cleaning means delete from the cache. Optionally will clean the term * object cache associated with the attachment ID. * * This function will not run if $_wp_suspend_cache_invalidation is not empty. * * @since 3.0.0 * * @global bool $_wp_suspend_cache_invalidation * * @param int $id The attachment ID in the cache to clean. * @param bool $clean_terms Optional. Whether to clean terms cache. Default false. */ function clean_attachment_cache( $id, $clean_terms = false ) { global $_wp_suspend_cache_invalidation; if ( ! empty( $_wp_suspend_cache_invalidation ) ) { return; } $id = (int) $id; wp_cache_delete( $id, 'posts' ); wp_cache_delete( $id, 'post_meta' ); if ( $clean_terms ) { clean_object_term_cache( $id, 'attachment' ); } /** * Fires after the given attachment's cache is cleaned. * * @since 3.0.0 * * @param int $id Attachment ID. */ do_action( 'clean_attachment_cache', $id ); } // // Hooks // /** * Hook for managing future post transitions to published. * * @since 2.3.0 * @access private * * @see wp_clear_scheduled_hook() * @global wpdb $wpdb WordPress database abstraction object. * * @param string $new_status New post status. * @param string $old_status Previous post status. * @param WP_Post $post Post object. */ function _transition_post_status( $new_status, $old_status, $post ) { global $wpdb; if ( $old_status != 'publish' && $new_status == 'publish' ) { // Reset GUID if transitioning to publish and it is empty. if ( '' == get_the_guid( $post->ID ) ) { $wpdb->update( $wpdb->posts, array( 'guid' => get_permalink( $post->ID ) ), array( 'ID' => $post->ID ) ); } /** * Fires when a post's status is transitioned from private to published. * * @since 1.5.0 * @deprecated 2.3.0 Use 'private_to_publish' instead. * * @param int $post_id Post ID. */ do_action( 'private_to_published', $post->ID ); } // If published posts changed clear the lastpostmodified cache. if ( 'publish' == $new_status || 'publish' == $old_status ) { foreach ( array( 'server', 'gmt', 'blog' ) as $timezone ) { wp_cache_delete( "lastpostmodified:$timezone", 'timeinfo' ); wp_cache_delete( "lastpostdate:$timezone", 'timeinfo' ); wp_cache_delete( "lastpostdate:$timezone:{$post->post_type}", 'timeinfo' ); } } if ( $new_status !== $old_status ) { wp_cache_delete( _count_posts_cache_key( $post->post_type ), 'counts' ); wp_cache_delete( _count_posts_cache_key( $post->post_type, 'readable' ), 'counts' ); } // Always clears the hook in case the post status bounced from future to draft. wp_clear_scheduled_hook( 'publish_future_post', array( $post->ID ) ); } /** * Hook used to schedule publication for a post marked for the future. * * The $post properties used and must exist are 'ID' and 'post_date_gmt'. * * @since 2.3.0 * @access private * * @param int $deprecated Not used. Can be set to null. Never implemented. Not marked * as deprecated with _deprecated_argument() as it conflicts with * wp_transition_post_status() and the default filter for _future_post_hook(). * @param WP_Post $post Post object. */ function _future_post_hook( $deprecated, $post ) { wp_clear_scheduled_hook( 'publish_future_post', array( $post->ID ) ); wp_schedule_single_event( strtotime( get_gmt_from_date( $post->post_date ) . ' GMT' ), 'publish_future_post', array( $post->ID ) ); } /** * Hook to schedule pings and enclosures when a post is published. * * Uses XMLRPC_REQUEST and WP_IMPORTING constants. * * @since 2.3.0 * @access private * * @param int $post_id The ID in the database table of the post being published. */ function _publish_post_hook( $post_id ) { if ( defined( 'XMLRPC_REQUEST' ) ) { /** * Fires when _publish_post_hook() is called during an XML-RPC request. * * @since 2.1.0 * * @param int $post_id Post ID. */ do_action( 'xmlrpc_publish_post', $post_id ); } if ( defined( 'WP_IMPORTING' ) ) { return; } if ( get_option( 'default_pingback_flag' ) ) { add_post_meta( $post_id, '_pingme', '1' ); } add_post_meta( $post_id, '_encloseme', '1' ); if ( ! wp_next_scheduled( 'do_pings' ) ) { wp_schedule_single_event( time(), 'do_pings' ); } } /** * Returns the ID of the post's parent. * * @since 3.1.0 * * @param int|WP_Post $post Post ID or post object. Defaults to global $post. * @return int|false Post parent ID (which can be 0 if there is no parent), or false if the post does not exist. */ function wp_get_post_parent_id( $post ) { $post = get_post( $post ); if ( ! $post || is_wp_error( $post ) ) { return false; } return (int) $post->post_parent; } /** * Check the given subset of the post hierarchy for hierarchy loops. * * Prevents loops from forming and breaks those that it finds. Attached * to the {@see 'wp_insert_post_parent'} filter. * * @since 3.1.0 * * @see wp_find_hierarchy_loop() * * @param int $post_parent ID of the parent for the post we're checking. * @param int $post_ID ID of the post we're checking. * @return int The new post_parent for the post, 0 otherwise. */ function wp_check_post_hierarchy_for_loops( $post_parent, $post_ID ) { // Nothing fancy here - bail. if ( ! $post_parent ) { return 0; } // New post can't cause a loop. if ( empty( $post_ID ) ) { return $post_parent; } // Can't be its own parent. if ( $post_parent == $post_ID ) { return 0; } // Now look for larger loops. if ( ! $loop = wp_find_hierarchy_loop( 'wp_get_post_parent_id', $post_ID, $post_parent ) ) { return $post_parent; // No loop } // Setting $post_parent to the given value causes a loop. if ( isset( $loop[ $post_ID ] ) ) { return 0; } // There's a loop, but it doesn't contain $post_ID. Break the loop. foreach ( array_keys( $loop ) as $loop_member ) { wp_update_post( array( 'ID' => $loop_member, 'post_parent' => 0, ) ); } return $post_parent; } /** * Sets the post thumbnail (featured image) for the given post. * * @since 3.1.0 * * @param int|WP_Post $post Post ID or post object where thumbnail should be attached. * @param int $thumbnail_id Thumbnail to attach. * @return int|bool True on success, false on failure. */ function set_post_thumbnail( $post, $thumbnail_id ) { $post = get_post( $post ); $thumbnail_id = absint( $thumbnail_id ); if ( $post && $thumbnail_id && get_post( $thumbnail_id ) ) { if ( wp_get_attachment_image( $thumbnail_id, 'thumbnail' ) ) { return update_post_meta( $post->ID, '_thumbnail_id', $thumbnail_id ); } else { return delete_post_meta( $post->ID, '_thumbnail_id' ); } } return false; } /** * Removes the thumbnail (featured image) from the given post. * * @since 3.3.0 * * @param int|WP_Post $post Post ID or post object from which the thumbnail should be removed. * @return bool True on success, false on failure. */ function delete_post_thumbnail( $post ) { $post = get_post( $post ); if ( $post ) { return delete_post_meta( $post->ID, '_thumbnail_id' ); } return false; } /** * Delete auto-drafts for new posts that are > 7 days old. * * @since 3.4.0 * * @global wpdb $wpdb WordPress database abstraction object. */ function wp_delete_auto_drafts() { global $wpdb; // Cleanup old auto-drafts more than 7 days old. $old_posts = $wpdb->get_col( "SELECT ID FROM $wpdb->posts WHERE post_status = 'auto-draft' AND DATE_SUB( NOW(), INTERVAL 7 DAY ) > post_date" ); foreach ( (array) $old_posts as $delete ) { // Force delete. wp_delete_post( $delete, true ); } } /** * Queues posts for lazy-loading of term meta. * * @since 4.5.0 * * @param array $posts Array of WP_Post objects. */ function wp_queue_posts_for_term_meta_lazyload( $posts ) { $post_type_taxonomies = $term_ids = array(); foreach ( $posts as $post ) { if ( ! ( $post instanceof WP_Post ) ) { continue; } if ( ! isset( $post_type_taxonomies[ $post->post_type ] ) ) { $post_type_taxonomies[ $post->post_type ] = get_object_taxonomies( $post->post_type ); } foreach ( $post_type_taxonomies[ $post->post_type ] as $taxonomy ) { // Term cache should already be primed by `update_post_term_cache()`. $terms = get_object_term_cache( $post->ID, $taxonomy ); if ( false !== $terms ) { foreach ( $terms as $term ) { if ( ! isset( $term_ids[ $term->term_id ] ) ) { $term_ids[] = $term->term_id; } } } } } if ( $term_ids ) { $lazyloader = wp_metadata_lazyloader(); $lazyloader->queue_objects( 'term', $term_ids ); } } /** * Update the custom taxonomies' term counts when a post's status is changed. * * For example, default posts term counts (for custom taxonomies) don't include * private / draft posts. * * @since 3.3.0 * @access private * * @param string $new_status New post status. * @param string $old_status Old post status. * @param WP_Post $post Post object. */ function _update_term_count_on_transition_post_status( $new_status, $old_status, $post ) { // Update counts for the post's terms. foreach ( (array) get_object_taxonomies( $post->post_type ) as $taxonomy ) { $tt_ids = wp_get_object_terms( $post->ID, $taxonomy, array( 'fields' => 'tt_ids' ) ); wp_update_term_count( $tt_ids, $taxonomy ); } } /** * Adds any posts from the given ids to the cache that do not already exist in cache * * @since 3.4.0 * @access private * * @see update_post_caches() * * @global wpdb $wpdb WordPress database abstraction object. * * @param array $ids ID list. * @param bool $update_term_cache Optional. Whether to update the term cache. Default true. * @param bool $update_meta_cache Optional. Whether to update the meta cache. Default true. */ function _prime_post_caches( $ids, $update_term_cache = true, $update_meta_cache = true ) { global $wpdb; $non_cached_ids = _get_non_cached_ids( $ids, 'posts' ); if ( ! empty( $non_cached_ids ) ) { $fresh_posts = $wpdb->get_results( sprintf( "SELECT $wpdb->posts.* FROM $wpdb->posts WHERE ID IN (%s)", join( ',', $non_cached_ids ) ) ); update_post_caches( $fresh_posts, 'any', $update_term_cache, $update_meta_cache ); } } /** * Adds a suffix if any trashed posts have a given slug. * * Store its desired (i.e. current) slug so it can try to reclaim it * if the post is untrashed. * * For internal use. * * @since 4.5.0 * @access private * * @param string $post_name Slug. * @param string $post_ID Optional. Post ID that should be ignored. Default 0. */ function wp_add_trashed_suffix_to_post_name_for_trashed_posts( $post_name, $post_ID = 0 ) { $trashed_posts_with_desired_slug = get_posts( array( 'name' => $post_name, 'post_status' => 'trash', 'post_type' => 'any', 'nopaging' => true, 'post__not_in' => array( $post_ID ), ) ); if ( ! empty( $trashed_posts_with_desired_slug ) ) { foreach ( $trashed_posts_with_desired_slug as $_post ) { wp_add_trashed_suffix_to_post_name_for_post( $_post ); } } } /** * Adds a trashed suffix for a given post. * * Store its desired (i.e. current) slug so it can try to reclaim it * if the post is untrashed. * * For internal use. * * @since 4.5.0 * @access private * * @param WP_Post $post The post. * @return string New slug for the post. */ function wp_add_trashed_suffix_to_post_name_for_post( $post ) { global $wpdb; $post = get_post( $post ); if ( '__trashed' === substr( $post->post_name, -9 ) ) { return $post->post_name; } add_post_meta( $post->ID, '_wp_desired_post_slug', $post->post_name ); $post_name = _truncate_post_slug( $post->post_name, 191 ) . '__trashed'; $wpdb->update( $wpdb->posts, array( 'post_name' => $post_name ), array( 'ID' => $post->ID ) ); clean_post_cache( $post->ID ); return $post_name; } /** * Filter the SQL clauses of an attachment query to include filenames. * * @since 4.7.0 * @access private * * @global wpdb $wpdb WordPress database abstraction object. * * @param array $clauses An array including WHERE, GROUP BY, JOIN, ORDER BY, * DISTINCT, fields (SELECT), and LIMITS clauses. * @return array The modified clauses. */ function _filter_query_attachment_filenames( $clauses ) { global $wpdb; remove_filter( 'posts_clauses', __FUNCTION__ ); // Add a LEFT JOIN of the postmeta table so we don't trample existing JOINs. $clauses['join'] .= " LEFT JOIN {$wpdb->postmeta} AS sq1 ON ( {$wpdb->posts}.ID = sq1.post_id AND sq1.meta_key = '_wp_attached_file' )"; $clauses['groupby'] = "{$wpdb->posts}.ID"; $clauses['where'] = preg_replace( "/\({$wpdb->posts}.post_content (NOT LIKE|LIKE) (\'[^']+\')\)/", '$0 OR ( sq1.meta_value $1 $2 )', $clauses['where'] ); return $clauses; } /** * Sets the last changed time for the 'posts' cache group. * * @since 5.0.0 */ function wp_cache_set_posts_last_changed() { wp_cache_set( 'last_changed', microtime(), 'posts' ); } /** * Get all available post MIME types for a given post type. * * @since 2.5.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param string $type * @return mixed */ function get_available_post_mime_types( $type = 'attachment' ) { global $wpdb; $types = $wpdb->get_col( $wpdb->prepare( "SELECT DISTINCT post_mime_type FROM $wpdb->posts WHERE post_type = %s", $type ) ); return $types; }