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Editor: Use a non-persistent object cache instead of transient in wp_get_global_stylesheet().

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This changeset is part of a greater effort to enhance the caching strategy for `theme.json` based data. Similar to [55138], the cache is currently ignored when `WP_DEBUG` is on to avoid interrupting the theme developer's workflow.

Props oandregal, spacedmonkey, hellofromtonya, flixos90, ironprogrammer, azaozz, aristath, costdev, mcsf.
Fixes #56910.

Built from https://develop.svn.wordpress.org/trunk@55148


git-svn-id: http://core.svn.wordpress.org/trunk@54681 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Felix Arntz 2023-01-26 23:03:14 +00:00
parent 74241b9205
commit 24bcc488b0
4 changed files with 33 additions and 19 deletions
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44
wp-includes/global-styles-and-settings.php
View File

@ -85,18 +85,34 @@ function wp_get_global_styles( $path = array(), $context = array() ) {
* @return string Stylesheet.
*/
function wp_get_global_stylesheet( $types = array() ) {
// Return cached value if it can be used and exists.
// It's cached by theme to make sure that theme switching clears the cache.
$can_use_cached = (
( empty( $types ) ) &&
( ! defined( 'WP_DEBUG' ) || ! WP_DEBUG ) &&
( ! defined( 'SCRIPT_DEBUG' ) || ! SCRIPT_DEBUG ) &&
( ! defined( 'REST_REQUEST' ) || ! REST_REQUEST ) &&
! is_admin()
);
$transient_name = 'global_styles_' . get_stylesheet();
/*
* Ignore cache when `WP_DEBUG` is enabled, so it doesn't interfere with the theme
* developer's workflow.
*
* @todo Replace `WP_DEBUG` once an "in development mode" check is available in Core.
*/
$can_use_cached = empty( $types ) && ! WP_DEBUG;
/*
* By using the 'theme_json' group, this data is marked to be non-persistent across requests.
* @see `wp_cache_add_non_persistent_groups()`.
*
* The rationale for this is to make sure derived data from theme.json
* is always fresh from the potential modifications done via hooks
* that can use dynamic data (modify the stylesheet depending on some option,
* settings depending on user permissions, etc.).
* See some of the existing hooks to modify theme.json behavior:
* @see https://make.wordpress.org/core/2022/10/10/filters-for-theme-json-data/
*
* A different alternative considered was to invalidate the cache upon certain
* events such as options add/update/delete, user meta, etc.
* It was judged not enough, hence this approach.
* @see https://github.com/WordPress/gutenberg/pull/45372
*/
$cache_group = 'theme_json';
$cache_key = 'wp_get_global_stylesheet';
if ( $can_use_cached ) {
$cached = get_transient( $transient_name );
$cached = wp_cache_get( $cache_key, $cache_group );
if ( $cached ) {
return $cached;
}
@ -152,11 +168,8 @@ function wp_get_global_stylesheet( $types = array() ) {
}
$stylesheet = $styles_variables . $styles_rest;
if ( $can_use_cached ) {
// Cache for a minute.
// This cache doesn't need to be any longer, we only want to avoid spikes on high-traffic sites.
set_transient( $transient_name, $stylesheet, MINUTE_IN_SECONDS );
wp_cache_set( $cache_key, $stylesheet, $cache_group );
}
return $stylesheet;
@ -303,5 +316,6 @@ function wp_theme_has_theme_json() {
* @since 6.2.0
*/
function wp_clean_theme_json_cache() {
wp_cache_delete( 'wp_get_global_stylesheet', 'theme_json' );
WP_Theme_JSON_Resolver::clean_cached_data();
}

2
wp-includes/load.php
View File

@ -753,7 +753,7 @@ function wp_start_object_cache() {
)
);
wp_cache_add_non_persistent_groups( array( 'counts', 'plugins' ) );
wp_cache_add_non_persistent_groups( array( 'counts', 'plugins', 'theme_json' ) );
}
$first_init = false;

4
wp-includes/ms-blogs.php
View File

@ -575,7 +575,7 @@ function switch_to_blog( $new_blog_id, $deprecated = null ) {
);
}
wp_cache_add_non_persistent_groups( array( 'counts', 'plugins' ) );
wp_cache_add_non_persistent_groups( array( 'counts', 'plugins', 'theme_json' ) );
}
}
@ -666,7 +666,7 @@ function restore_current_blog() {
);
}
wp_cache_add_non_persistent_groups( array( 'counts', 'plugins' ) );
wp_cache_add_non_persistent_groups( array( 'counts', 'plugins', 'theme_json' ) );
}
}

2
wp-includes/version.php
View File

@ -16,7 +16,7 @@
*
* @global string $wp_version
*/
$wp_version = '6.2-alpha-55147';
$wp_version = '6.2-alpha-55148';
/**
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.