From f404019a39f5bf4b1772c156d6b8d9cb9c06ad63 Mon Sep 17 00:00:00 2001
From: Oliver Davies <oliver@oliverdavies.uk>
Date: Mon, 11 Jan 2021 01:58:40 +0000
Subject: [PATCH] Add cache tag for the current post

References #3
---
 web/modules/custom/blog/src/Plugin/Block/RelatedPostsBlock.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/web/modules/custom/blog/src/Plugin/Block/RelatedPostsBlock.php b/web/modules/custom/blog/src/Plugin/Block/RelatedPostsBlock.php
index c250b0d..deb53e7 100644
--- a/web/modules/custom/blog/src/Plugin/Block/RelatedPostsBlock.php
+++ b/web/modules/custom/blog/src/Plugin/Block/RelatedPostsBlock.php
@@ -66,6 +66,7 @@ class RelatedPostsBlock extends BlockBase implements ContainerFactoryPluginInter
     $build['content'] = [
       '#cache' => [
         'max-age' => 604800,
+        'tags' => ["node:{$currentPost->id()}"],
       ],
       '#theme' => 'item_list',
       '#items' => $relatedPosts