From 7cf52a2ab5cc47301d94f7c290a79d77454e38ec Mon Sep 17 00:00:00 2001
From: ale <ale@incal.net>
Date: Fri, 19 Feb 2021 16:26:21 +0000
Subject: [PATCH] Add support for github.com/stuttter/ludicrousdb
It is a replacement for HyperDB.
Controlled by defining R2DB_USE_LUDICROUSDB to non-null in db-config.php.
---
db-backends.php | 19 +++++++++++++++++--
1 file changed, 17 insertions(+), 2 deletions(-)
diff --git a/db-backends.php b/db-backends.php
index ace5b2a..b6df992 100644
--- a/db-backends.php
+++ b/db-backends.php
@@ -10,7 +10,7 @@ $r2db_hash_map = new Flexihash(null, R2DB_FLEXIHASH_REPLICAS);
*
* Implements a consistent hashing scheme using Flexihash.
*/
-function noblogs_db_callback($query, $wpdb) {
+function noblogs_hyperdb_callback($query, $wpdb) {
global $r2db_hash_map;
if (preg_match("/^{$wpdb->base_prefix}(\d+)_/", $wpdb->table, $matches)) {
$blog_id = $matches[1];
@@ -18,7 +18,22 @@ function noblogs_db_callback($query, $wpdb) {
}
}
-$wpdb->add_callback('noblogs_db_callback');
+/* Same as above but with a slightly different function
+ signature for https://github.com/stuttter/ludicrousdb */
+function noblogs_ludicrousdb_callback($table, $wpdb) {
+ global $r2db_hash_map;
+ if (preg_match("/^{$wpdb->base_prefix}(\d+)_/", $table, $matches)) {
+ $blog_id = $matches[1];
+ return $r2db_hash_map->lookup($blog_id);
+ }
+ return "global";
+}
+
+if (defined('R2DB_USE_LUDICROUSDB')) {
+ $wpdb->add_callback('noblogs_ludicrousdb_callback');
+} else {
+ $wpdb->add_callback('noblogs_hyperdb_callback');
+}
/* Load backend shards and add them to FlexiHash / $wpdb. */
function noblogs_load_backends() {
--
GitLab