文件管理器

编辑：class-wp-metadata-lazyloader.php

<?php
/**
 * Meta API: WP_Metadata_Lazyloader class
 *
 * @package WordPress
 * @subpackage Meta
 * @since 4.5.0
 */

/**
 * Core class used for lazy-loading object metadata.
 *
 * When loading many objects of a given type, such as posts in a WP_Query loop, it often makes
 * sense to prime various metadata caches at the beginning of the loop. This means fetching all
 * relevant metadata with a single database query, a technique that has the potential to improve
 * performance dramatically in some cases.
 *
 * In cases where the given metadata may not even be used in the loop, we can improve performance
 * even more by only priming the metadata cache for affected items the first time a piece of metadata
 * is requested - ie, by lazy-loading it. So, for example, comment meta may not be loaded into the
 * cache in the comments section of a post until the first time get_comment_meta() is called in the
 * context of the comment loop.
 *
 * WP uses the WP_Metadata_Lazyloader class to queue objects for metadata cache priming. The class
 * then detects the relevant get_*_meta() function call, and queries the metadata of all queued objects.
 *
 * Do not access this class directly. Use the wp_metadata_lazyloader() function.
 *
 * @since 4.5.0
 */
#[AllowDynamicProperties]
class WP_Metadata_Lazyloader {
	/**
	 * Pending objects queue.
	 *
	 * @since 4.5.0
	 * @var array
	 */
	protected $pending_objects;

/**
	 * Settings for supported object types.
	 *
	 * @since 4.5.0
	 * @var array
	 */
	protected $settings = array();

/**
	 * Constructor.
	 *
	 * @since 4.5.0
	 */
	public function __construct() {
		$this->settings = array(
			'term'    => array(
				'filter'   => 'get_term_metadata',
				'callback' => array( $this, 'lazyload_meta_callback' ),
			),
			'comment' => array(
				'filter'   => 'get_comment_metadata',
				'callback' => array( $this, 'lazyload_meta_callback' ),
			),
			'blog'    => array(
				'filter'   => 'get_blog_metadata',
				'callback' => array( $this, 'lazyload_meta_callback' ),
			),
		);
	}

/**
	 * Adds objects to the metadata lazy-load queue.
	 *
	 * @since 4.5.0
	 *
	 * @param string $object_type Type of object whose meta is to be lazy-loaded. Accepts 'term' or 'comment'.
	 * @param array  $object_ids  Array of object IDs.
	 * @return void|WP_Error WP_Error on failure.
	 */
	public function queue_objects( $object_type, $object_ids ) {
		if ( ! isset( $this->settings[ $object_type ] ) ) {
			return new WP_Error( 'invalid_object_type', __( 'Invalid object type.' ) );
		}

$type_settings = $this->settings[ $object_type ];

if ( ! isset( $this->pending_objects[ $object_type ] ) ) {
			$this->pending_objects[ $object_type ] = array();
		}

foreach ( $object_ids as $object_id ) {
			// Keyed by ID for faster lookup.
			if ( ! isset( $this->pending_objects[ $object_type ][ $object_id ] ) ) {
				$this->pending_objects[ $object_type ][ $object_id ] = 1;
			}
		}

add_filter( $type_settings['filter'], $type_settings['callback'], 10, 5 );

/**
		 * Fires after objects are added to the metadata lazy-load queue.
		 *
		 * @since 4.5.0
		 *
		 * @param array                  $object_ids  Array of object IDs.
		 * @param string                 $object_type Type of object being queued.
		 * @param WP_Metadata_Lazyloader $lazyloader  The lazy-loader object.
		 */
		do_action( 'metadata_lazyloader_queued_objects', $object_ids, $object_type, $this );
	}

/**
	 * Resets lazy-load queue for a given object type.
	 *
	 * @since 4.5.0
	 *
	 * @param string $object_type Object type. Accepts 'comment' or 'term'.
	 * @return void|WP_Error WP_Error on failure.
	 */
	public function reset_queue( $object_type ) {
		if ( ! isset( $this->settings[ $object_type ] ) ) {
			return new WP_Error( 'invalid_object_type', __( 'Invalid object type.' ) );
		}

$type_settings = $this->settings[ $object_type ];

$this->pending_objects[ $object_type ] = array();
		remove_filter( $type_settings['filter'], $type_settings['callback'] );
	}

/**
	 * Lazy-loads term meta for queued terms.
	 *
	 * This method is public so that it can be used as a filter callback. As a rule, there
	 * is no need to invoke it directly.
	 *
	 * @since 4.5.0
	 * @deprecated 6.3.0 Use WP_Metadata_Lazyloader::lazyload_meta_callback() instead.
	 *
	 * @param mixed $check The `$check` param passed from the 'get_term_metadata' hook.
	 * @return mixed In order not to short-circuit `get_metadata()`. Generally, this is `null`, but it could be
	 *               another value if filtered by a plugin.
	 */
	public function lazyload_term_meta( $check ) {
		_deprecated_function( __METHOD__, '6.3.0', 'WP_Metadata_Lazyloader::lazyload_meta_callback' );
		return $this->lazyload_meta_callback( $check, 0, '', false, 'term' );
	}

/**
	 * Lazy-loads comment meta for queued comments.
	 *
	 * This method is public so that it can be used as a filter callback. As a rule, there is no need to invoke it
	 * directly, from either inside or outside the `WP_Query` object.
	 *
	 * @since 4.5.0
	 * @deprecated 6.3.0 Use WP_Metadata_Lazyloader::lazyload_meta_callback() instead.
	 *
	 * @param mixed $check The `$check` param passed from the {@see 'get_comment_metadata'} hook.
	 * @return mixed The original value of `$check`, so as not to short-circuit `get_comment_metadata()`.
	 */
	public function lazyload_comment_meta( $check ) {
		_deprecated_function( __METHOD__, '6.3.0', 'WP_Metadata_Lazyloader::lazyload_meta_callback' );
		return $this->lazyload_meta_callback( $check, 0, '', false, 'comment' );
	}

/**
	 * Lazy-loads meta for queued objects.
	 *
	 * This method is public so that it can be used as a filter callback. As a rule, there
	 * is no need to invoke it directly.
	 *
	 * @since 6.3.0
	 *
	 * @param mixed  $check     The `$check` param passed from the 'get_*_metadata' hook.
	 * @param int    $object_id ID of the object metadata is for.
	 * @param string $meta_key  Unused.
	 * @param bool   $single    Unused.
	 * @param string $meta_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
	 *                          or any other object type with an associated meta table.
	 * @return mixed In order not to short-circuit `get_metadata()`. Generally, this is `null`, but it could be
	 *               another value if filtered by a plugin.
	 */
	public function lazyload_meta_callback( $check, $object_id, $meta_key, $single, $meta_type ) {
		if ( empty( $this->pending_objects[ $meta_type ] ) ) {
			return $check;
		}

$object_ids = array_keys( $this->pending_objects[ $meta_type ] );
		if ( $object_id && ! in_array( $object_id, $object_ids, true ) ) {
			$object_ids[] = $object_id;
		}

update_meta_cache( $meta_type, $object_ids );

// No need to run again for this set of objects.
		$this->reset_queue( $meta_type );

return $check;
	}
}

名称	权限	大小	修改时间	操作
↑ 返回上级	-	-	-	-
ID3	drwxr-xr-x	-	2024-04-03 10:16	删除
IXR	drwxr-xr-x	-	2026-04-17 05:01	删除
PHPMailer	drwxr-xr-x	-	2025-12-08 18:52	删除
Requests	drwxr-xr-x	-	2023-03-30 09:26	删除
SimplePie	drwxr-xr-x	-	2026-04-17 16:44	删除
Text	drwxr-xr-x	-	2024-11-13 13:00	删除
abilities-api	drwxr-xr-x	-	2026-04-17 16:32	删除
assets	drwxr-xr-x	-	2024-11-13 13:01	删除
block-bindings	drwxr-xr-x	-	2025-12-04 05:41	删除
block-patterns	drwxr-xr-x	-	2024-12-19 23:58	删除
block-supports	drwxr-xr-x	-	2025-12-04 05:41	删除
blocks	drwxr-xr-x	-	2025-12-04 05:41	删除
certificates	drwxr-xr-x	-	2022-11-15 19:03	删除
css	drwxr-xr-x	-	2025-04-16 11:06	删除
customize	drwxr-xr-x	-	2024-11-20 16:49	删除
fonts	drwxr-xr-x	-	2024-04-03 10:16	删除
html-api	drwxr-xr-x	-	2024-12-20 00:03	删除
images	drwxr-xr-x	-	2023-08-09 11:43	删除
interactivity-api	drwxr-xr-x	-	2024-12-20 00:12	删除
js	drwxr-xr-x	-	2025-12-04 05:42	删除
l10n	drwxr-xr-x	-	2024-12-20 00:12	删除
php-compat	drwxr-xr-x	-	2022-11-15 19:03	删除
pomo	drwxr-xr-x	-	2022-11-15 19:03	删除
rest-api	drwxr-xr-x	-	2024-11-20 16:51	删除
sitemaps	drwxr-xr-x	-	2022-11-15 19:03	删除
sodium_compat	drwxr-xr-x	-	2022-11-15 19:03	删除
style-engine	drwxr-xr-x	-	2022-11-15 19:03	删除
theme-compat	drwxr-xr-x	-	2025-12-08 18:51	删除
widgets	drwxr-xr-x	-	2023-06-26 16:12	删除
author-template.php	-rw-r--r--	18.94 KB	2025-12-04 05:41	编辑下载删除
block-i18n.json	-rw-r--r--	316 B	2021-08-11 09:08	编辑下载删除
bookmark-template.php	-rw-r--r--	12.47 KB	2025-04-16 11:06	编辑下载删除
canonical.php	-rw-r--r--	33.83 KB	2025-12-04 05:41	编辑下载删除
category-template.php	-rw-r--r--	55.71 KB	2025-12-04 05:41	编辑下载删除
category.php	-rw-r--r--	12.53 KB	2025-04-16 11:06	编辑下载删除
class-avif-info.php	-rw-r--r--	28.92 KB	2024-05-09 08:00	编辑下载删除
class-phpmailer.php	-rw-r--r--	664 B	2020-07-21 12:58	编辑下载删除
class-pop3.php	-rw-r--r--	20.63 KB	2025-04-16 11:06	编辑下载删除
class-smtp.php	-rw-r--r--	457 B	2021-01-26 13:45	编辑下载删除
class-walker-category-dropdown.php	-rw-r--r--	2.41 KB	2023-11-08 10:55	编辑下载删除
class-walker-category.php	-rw-r--r--	8.28 KB	2023-11-08 10:55	编辑下载删除
class-walker-page-dropdown.php	-rw-r--r--	2.65 KB	2023-11-08 10:55	编辑下载删除
class-walker-page.php	-rw-r--r--	7.43 KB	2023-11-08 10:55	编辑下载删除
class-wp-ajax-response.php	-rw-r--r--	5.14 KB	2022-09-12 15:47	编辑下载删除
class-wp-block-bindings-registry.php	-rw-r--r--	8.28 KB	2025-12-04 05:41	编辑下载删除
class-wp-block-bindings-source.php	-rw-r--r--	2.92 KB	2024-11-13 13:01	编辑下载删除
class-wp-block-editor-context.php	-rw-r--r--	1.32 KB	2022-09-12 15:47	编辑下载删除
class-wp-block-list.php	-rw-r--r--	4.6 KB	2025-12-04 05:41	编辑下载删除
class-wp-block-metadata-registry.php	-rw-r--r--	11.62 KB	2025-04-16 11:06	编辑下载删除
class-wp-block-parser-block.php	-rw-r--r--	2.5 KB	2025-12-04 05:41	编辑下载删除
class-wp-block-parser-frame.php	-rw-r--r--	1.97 KB	2024-11-13 13:00	编辑下载删除
class-wp-block-pattern-categories-registry.php	-rw-r--r--	5.32 KB	2025-12-04 05:42	编辑下载删除
class-wp-block-patterns-registry.php	-rw-r--r--	10.99 KB	2026-03-11 06:39	编辑下载删除
class-wp-block-styles-registry.php	-rw-r--r--	6.34 KB	2025-12-04 05:41	编辑下载删除
class-wp-block-supports.php	-rw-r--r--	5.49 KB	2025-04-16 11:06	编辑下载删除
class-wp-block-templates-registry.php	-rw-r--r--	7.02 KB	2025-12-04 05:41	编辑下载删除
class-wp-block-type-registry.php	-rw-r--r--	4.91 KB	2025-12-04 05:41	编辑下载删除
class-wp-block-type.php	-rw-r--r--	16.86 KB	2024-07-17 11:51	编辑下载删除
class-wp-classic-to-block-menu-converter.php	-rw-r--r--	3.97 KB	2025-12-04 05:41	编辑下载删除
class-wp-customize-control.php	-rw-r--r--	25.51 KB	2025-12-04 05:41	编辑下载删除
class-wp-customize-nav-menus.php	-rw-r--r--	56.65 KB	2025-12-04 05:42	编辑下载删除
class-wp-duotone.php	-rw-r--r--	39.83 KB	2024-07-17 11:51	编辑下载删除
class-wp-fatal-error-handler.php	-rw-r--r--	7.96 KB	2024-11-13 13:00	编辑下载删除
class-wp-feed-cache-transient.php	-rw-r--r--	3.23 KB	2025-12-04 05:41	编辑下载删除
class-wp-http-ixr-client.php	-rw-r--r--	3.42 KB	2026-03-11 06:39	编辑下载删除
class-wp-http-requests-hooks.php	-rw-r--r--	1.97 KB	2023-03-30 09:26	编辑下载删除
class-wp-http-requests-response.php	-rw-r--r--	4.3 KB	2023-11-08 10:55	编辑下载删除
class-wp-http-streams.php	-rw-r--r--	16.46 KB	2023-11-08 10:55	编辑下载删除
class-wp-image-editor-gd.php	-rw-r--r--	20.22 KB	2025-12-04 05:41	编辑下载删除
class-wp-image-editor-imagick.php	-rw-r--r--	36.11 KB	2025-12-04 05:41	编辑下载删除
class-wp-list-util.php	-rw-r--r--	7.27 KB	2023-11-08 10:55	编辑下载删除
class-wp-locale-switcher.php	-rw-r--r--	6.62 KB	2025-12-04 05:41	编辑下载删除
class-wp-locale.php	-rw-r--r--	16.49 KB	2025-04-16 11:06	编辑下载删除
class-wp-meta-query.php	-rw-r--r--	29.82 KB	2025-12-04 05:41	编辑下载删除
class-wp-metadata-lazyloader.php	-rw-r--r--	6.67 KB	2023-08-09 11:43	编辑下载删除
class-wp-paused-extensions-storage.php	-rw-r--r--	4.99 KB	2024-11-13 13:00	编辑下载删除
class-wp-phpmailer.php	-rw-r--r--	4.25 KB	2025-12-04 05:41	编辑下载删除
class-wp-plugin-dependencies.php	-rw-r--r--	24.72 KB	2025-04-16 11:06	编辑下载删除
class-wp-post-type.php	-rw-r--r--	29.96 KB	2025-04-16 11:06	编辑下载删除
class-wp-post.php	-rw-r--r--	6.34 KB	2025-12-04 05:42	编辑下载删除
class-wp-recovery-mode-cookie-service.php	-rw-r--r--	6.72 KB	2022-10-04 03:59	编辑下载删除
class-wp-recovery-mode-email-service.php	-rw-r--r--	10.92 KB	2023-08-09 11:43	编辑下载删除
class-wp-recovery-mode-key-service.php	-rw-r--r--	4.77 KB	2025-04-16 11:06	编辑下载删除
class-wp-recovery-mode-link-service.php	-rw-r--r--	3.38 KB	2022-09-12 15:47	编辑下载删除
class-wp-recovery-mode.php	-rw-r--r--	11.18 KB	2025-04-16 11:06	编辑下载删除
class-wp-roles.php	-rw-r--r--	9.17 KB	2026-02-27 10:54	编辑下载删除
class-wp-session-tokens.php	-rw-r--r--	7.15 KB	2025-04-16 11:06	编辑下载删除
class-wp-simplepie-file.php	-rw-r--r--	3.47 KB	2025-12-04 05:42	编辑下载删除
class-wp-simplepie-sanitize-kses.php	-rw-r--r--	1.87 KB	2025-04-16 11:06	编辑下载删除
class-wp-site-query.php	-rw-r--r--	30.91 KB	2025-12-04 05:41	编辑下载删除
class-wp-site.php	-rw-r--r--	7.29 KB	2025-12-04 05:41	编辑下载删除
class-wp-tax-query.php	-rw-r--r--	19.12 KB	2025-12-04 05:41	编辑下载删除
class-wp-taxonomy.php	-rw-r--r--	18.12 KB	2025-04-16 11:06	编辑下载删除
class-wp-text-diff-renderer-inline.php	-rw-r--r--	979 B	2024-04-03 10:16	编辑下载删除
class-wp-text-diff-renderer-table.php	-rw-r--r--	18.44 KB	2025-04-16 11:06	编辑下载删除
class-wp-textdomain-registry.php	-rw-r--r--	10.24 KB	2024-11-22 11:55	编辑下载删除
class-wp-theme-json-data.php	-rw-r--r--	1.77 KB	2024-07-17 11:51	编辑下载删除
class-wp-theme-json-resolver.php	-rw-r--r--	34.9 KB	2025-04-16 11:06	编辑下载删除
class-wp-theme-json-schema.php	-rw-r--r--	7.19 KB	2024-07-17 11:51	编辑下载删除
class-wp-url-pattern-prefixer.php	-rw-r--r--	4.69 KB	2025-04-16 11:06	编辑下载删除
class-wp-user-meta-session-tokens.php	-rw-r--r--	2.94 KB	2025-12-04 05:42	编辑下载删除
class-wp-widget-factory.php	-rw-r--r--	3.27 KB	2022-09-12 15:47	编辑下载删除
class-wp.php	-rw-r--r--	25.86 KB	2025-12-04 05:41	编辑下载删除
compat.php	-rw-r--r--	17.41 KB	2025-12-04 05:41	编辑下载删除
default-constants.php	-rw-r--r--	11.1 KB	2024-11-13 13:00	编辑下载删除
default-filters.php	-rw-r--r--	37.02 KB	2025-12-04 05:41	编辑下载删除
error_log	-rw-r--r--	739.5 KB	2026-04-30 07:47	编辑下载删除
feed-rdf.php	-rw-r--r--	2.61 KB	2020-01-29 00:45	编辑下载删除
fonts.php	-rw-r--r--	9.56 KB	2025-12-04 05:41	编辑下载删除
global-styles-and-settings.php	-rw-r--r--	20.71 KB	2025-12-04 05:41	编辑下载删除
http.php	-rw-r--r--	25.27 KB	2025-12-04 05:41	编辑下载删除
kses.php	-rw-r--r--	81.73 KB	2026-03-11 06:39	编辑下载删除
l10n.php	-rw-r--r--	67.18 KB	2025-12-04 05:41	编辑下载删除
link-template.php	-rw-r--r--	156.36 KB	2025-12-04 05:42	编辑下载删除
locale.php	-rw-r--r--	162 B	2019-10-08 17:19	编辑下载删除
media-template.php	-rw-r--r--	61.72 KB	2025-12-04 05:42	编辑下载删除
media.php	-rw-r--r--	216.06 KB	2026-03-11 06:39	编辑下载删除
ms-blogs.php	-rw-r--r--	25.24 KB	2025-04-16 11:06	编辑下载删除
ms-default-filters.php	-rw-r--r--	6.48 KB	2023-03-30 09:26	编辑下载删除
ms-files.php	-rw-r--r--	2.79 KB	2025-12-04 05:41	编辑下载删除
ms-site.php	-rw-r--r--	40.74 KB	2025-12-04 05:41	编辑下载删除
nav-menu-template.php	-rw-r--r--	25.38 KB	2025-04-16 11:06	编辑下载删除
post-formats.php	-rw-r--r--	6.94 KB	2024-07-17 11:51	编辑下载删除
post-thumbnail-template.php	-rw-r--r--	10.62 KB	2025-04-16 11:06	编辑下载删除
registration-functions.php	-rw-r--r--	200 B	2020-11-12 11:17	编辑下载删除
registration.php	-rw-r--r--	200 B	2020-11-12 11:17	编辑下载删除
robots-template.php	-rw-r--r--	5.06 KB	2022-04-06 15:33	编辑下载删除
taxonomy.php	-rw-r--r--	172.91 KB	2025-12-04 05:41	编辑下载删除
template-canvas.php	-rw-r--r--	544 B	2023-11-08 10:55	编辑下载删除
theme-i18n.json	-rw-r--r--	1.69 KB	2026-02-27 10:54	编辑下载删除
theme-templates.php	-rw-r--r--	6.09 KB	2025-04-16 11:06	编辑下载删除
theme.json	-rw-r--r--	8.71 KB	2025-12-04 05:42	编辑下载删除
vars.php	-rw-r--r--	6.41 KB	2025-04-16 11:06	编辑下载删除