first commit

redis-cache-fix.php

@@ -0,0 +1,38 @@
+<?php
+/*
+Plugin Name: Redis Object Cache fix
+Plugin URI:
+Description:
+Version: 0.1
+Author: DigitalCube
+Author URI: https://www.digitalcube.jp/
+License: GPLv2 or later
+*/
+
+class redis_cache_fix {
+    public function __construct() {
+        add_action( 'add_option',    array( $this, 'option_cache_flush' ) );
+        add_action( 'update_option', array( $this, 'option_cache_flush' ) );
+        add_action( 'delete_option', array( $this, 'option_cache_flush' ) );
+    }
+
+    // update_option, delete_option 時に cache をフラッシュ
+    public function option_cache_flush($option, $old_value = '', $value = ''){
+        if ( !empty( $option ) ) {
+            wp_cache_delete( $option, 'options' );
+            foreach (array('alloptions','notoptions') as $options_name) {
+                $options = wp_cache_get( $options_name, 'options' );
+                if ( ! is_array($options) ) {
+                    $options = array();
+                }
+                if ( isset($options[$option]) ) {
+                    unset($options[$option]);
+                    wp_cache_set( $options_name, $options, 'options' );
+                }
+                unset($options);
+            }
+        }
+        return;
+    }
+};
+new redis_cache_fix();