Migration: flush post caches (#1181)

* Migration: flush post caches for Followers after meta renaming

Author: mattwiebe

CHANGELOG.md

@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed
 
 * More robust handling of `_activityPubOptions` in scripts, using a `useOptions()` helper.
+* Flush post caches after Followers migration.
 
 ### Added
 

activitypub.php

@@ -3,7 +3,7 @@
  * Plugin Name: ActivityPub
  * Plugin URI: https://github.com/Automattic/wordpress-activitypub
  * Description: The ActivityPub protocol is a decentralized social networking protocol based upon the ActivityStreams 2.0 data format.
- * Version: 4.7.1
+ * Version: 4.7.2
  * Author: Matthias Pfefferle & Automattic
  * Author URI: https://automattic.com/
  * License: MIT
@@ -19,7 +19,7 @@
 
 use WP_CLI;
 
-\define( 'ACTIVITYPUB_PLUGIN_VERSION', '4.7.1' );
+\define( 'ACTIVITYPUB_PLUGIN_VERSION', '4.7.2' );
 
 // Plugin related constants.
 \define( 'ACTIVITYPUB_PLUGIN_DIR', plugin_dir_path( __FILE__ ) );

includes/class-migration.php

@@ -164,6 +164,9 @@ public static function maybe_migrate() {
 		if ( \version_compare( $version_from_db, '4.7.1', '<' ) ) {
 			self::migrate_to_4_7_1();
 		}
+		if ( \version_compare( $version_from_db, '4.7.2', '<' ) ) {
+			self::migrate_to_4_7_2();
+		}
 
 		/**
 		 * Fires when the system has to be migrated.
@@ -410,6 +413,20 @@ public static function migrate_to_4_7_1() {
 		}
 	}
 
+	/**
+	 * Clears the post cache for Followers, we should have done this in 4.7.1 when we renamed those keys.
+	 */
+	public static function migrate_to_4_7_2() {
+		global $wpdb;
+		// phpcs:ignore WordPress.DB
+		$followers = $wpdb->get_col(
+			$wpdb->prepare( "SELECT ID FROM {$wpdb->posts} WHERE post_type = %s", Followers::POST_TYPE )
+		);
+		foreach ( $followers as $id ) {
+			clean_post_cache( $id );
+		}
+	}
+
 	/**
 	 * Update comment counts for posts in batches.
 	 *

readme.txt

@@ -137,6 +137,7 @@ For reasons of data protection, it is not possible to see the followers of other
 * Added: Support for WPML post locale
 * Removed: Built-in support for nodeinfo2. Use the [NodeInfo plugin](https://wordpress.org/plugins/nodeinfo/) instead.
 * Fixed: More robust handling of `_activityPubOptions` in scripts, using a `useOptions()` helper.
+* Fixed: Flush post caches after Followers migration.
 
 = 4.7.1 =