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Multisite: Improve performance by caching not found lookups for sites and networks.

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With this change, the result of a site or network lookup by ID will be cached even if the ID does not exist. When a new site or network is created, the cache for the respective new ID is cleared.

Props mnelson4, nielsdeblaauw.
Fixes #42251.


git-svn-id: https://develop.svn.wordpress.org/trunk@45910 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Felix Arntz
2019-08-29 12:41:45 +00:00
parent 65f3124283
commit 4572bb0988
6 changed files with 111 additions and 9 deletions
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src/wp-includes/class-wp-site.php
+6 -2
View File
@@ -162,16 +162,20 @@ final class WP_Site {
$_site = wp_cache_get( $site_id, 'sites' );
if ( ! $_site ) {
if ( false === $_site ) {
$_site = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM {$wpdb->blogs} WHERE blog_id = %d LIMIT 1", $site_id ) );
if ( empty( $_site ) || is_wp_error( $_site ) ) {
return false;
$_site = -1;
}
wp_cache_add( $site_id, $_site, 'sites' );
}
if ( is_numeric( $_site ) ) {
return false;
}
return new WP_Site( $_site );
}