Ticket #40669: 40669-posts.diff

src/wp-includes/post.php

@@ -1710 +1710 @@
  */
 function add_post_meta( $post_id, $meta_key, $meta_value, $unique = false ) {
         // Make sure meta is added to the post, not a revision.
-        if ( $the_post = wp_is_post_revision($post_id) )
+        if ( $the_post = wp_is_post_revision( $post_id ) ) {
                 $post_id = $the_post;
+        }
 
-        return add_metadata('post', $post_id, $meta_key, $meta_value, $unique);
-}
+        $added = add_metadata( 'post', $post_id, $meta_key, $meta_value, $unique );
+
+        if ( $added ) {
+                wp_cache_set( 'last_changed', microtime(), 'posts' );
+        }
 
+        return $added;
+}
 /**
  * Remove metadata matching criteria from a post.
  *
@@ -1733 +1739 @@
  */
 function delete_post_meta( $post_id, $meta_key, $meta_value = '' ) {
         // Make sure meta is added to the post, not a revision.
-        if ( $the_post = wp_is_post_revision($post_id) )
+        if ( $the_post = wp_is_post_revision( $post_id ) ) {
                 $post_id = $the_post;
+        }
+
+        $deleted = delete_metadata( 'post', $post_id, $meta_key, $meta_value );
+
+        if ( $deleted ) {
+                wp_cache_set( 'last_changed', microtime(), 'posts' );
+        }
 
-        return delete_metadata('post', $post_id, $meta_key, $meta_value);
+        return $deleted;
 }
 
 /**
@@ -1775 +1788 @@
  */
 function update_post_meta( $post_id, $meta_key, $meta_value, $prev_value = '' ) {
         // Make sure meta is added to the post, not a revision.
-        if ( $the_post = wp_is_post_revision($post_id) )
+        if ( $the_post = wp_is_post_revision( $post_id ) ) {
                 $post_id = $the_post;
+        }
 
-        return update_metadata('post', $post_id, $meta_key, $meta_value, $prev_value);
+        $updated = update_metadata( 'post', $post_id, $meta_key, $meta_value, $prev_value );
+
+        if ( $updated ) {
+                wp_cache_set( 'last_changed', microtime(), 'posts' );
+        }
+
+        return $updated;
 }
 
 /**
@@ -1790 +1810 @@
  * @return bool Whether the post meta key was deleted from the database.
  */
 function delete_post_meta_by_key( $post_meta_key ) {
-        return delete_metadata( 'post', null, $post_meta_key, '', true );
+        $deleted = delete_metadata( 'post', null, $post_meta_key, '', true );
+
+        if ( $deleted ) {
+                wp_cache_set( 'last_changed', microtime(), 'posts' );
+        }
+
+        return $deleted;
 }
 
 /**