Ticket #40669: 40669-comments.diff

src/wp-includes/comment.php

@@ -423 +423 @@
  * @return int|bool Meta ID on success, false on failure.
  */
 function add_comment_meta($comment_id, $meta_key, $meta_value, $unique = false) {
-        return add_metadata('comment', $comment_id, $meta_key, $meta_value, $unique);
+        $added = add_metadata( 'comment', $comment_id, $meta_key, $meta_value, $unique );
+        if ( $added ) {
+                wp_cache_set( 'last_changed', microtime(), 'comments' );
+        }
+
+        return $added;
 }
 
 /**
@@ -442 +447 @@
  * @return bool True on success, false on failure.
  */
 function delete_comment_meta($comment_id, $meta_key, $meta_value = '') {
-        return delete_metadata('comment', $comment_id, $meta_key, $meta_value);
+        $deleted = delete_metadata( 'comment', $comment_id, $meta_key, $meta_value );
+        if ( $deleted ) {
+                wp_cache_set( 'last_changed', microtime(), 'comments' );
+        }
+
+        return $deleted;
 }
 
 /**
@@ -479 +489 @@
  * @return int|bool Meta ID if the key didn't exist, true on successful update, false on failure.
  */
 function update_comment_meta($comment_id, $meta_key, $meta_value, $prev_value = '') {
-        return update_metadata('comment', $comment_id, $meta_key, $meta_value, $prev_value);
+        $updated = update_metadata( 'comment', $comment_id, $meta_key, $meta_value, $prev_value );
+        if ( $updated ) {
+                wp_cache_set( 'last_changed', microtime(), 'comments' );
+        }
+
+        return $updated;
 }
 
 /**