Ticket #10337: 10337.10.patch

wp-includes/media.php

@@ -932 +932 @@
 
                 // After a post is saved, cache oEmbed items via AJAX
                 add_action( 'edit_form_advanced', array(&$this, 'maybe_run_ajax_cache') );
+
+                // On theme switch, dump all oEmbed caches (since the theme width can change)
+                add_action( 'switch_theme', array(&$this, 'delete_all_oembed_caches') );
         }
 
         /**
@@ -1097 +1100 @@
         }
 
         /**
-         * Delete all oEmbed caches.
+         * Delete all oEmbed caches for a post.
          *
          * @param int $post_ID Post ID to delete the caches for.
          */
@@ -1112 +1115 @@
         }
 
         /**
+         * Delete all oEmbed caches for all posts.
+         */
+        function delete_all_oembed_caches() {
+                // Based on delete_post_meta_by_key()
+                global $wpdb;
+                $post_ids = $wpdb->get_col( "SELECT DISTINCT post_id FROM $wpdb->postmeta WHERE meta_key LIKE '_oembed_%'" );
+                if ( $post_ids ) {
+                        $postmetaids = $wpdb->get_col( "SELECT meta_id FROM $wpdb->postmeta WHERE meta_key LIKE '_oembed_%'" );
+                        $in = implode( ',', array_fill( 1, count($postmetaids), '%d' ) ); 
+                        do_action( 'delete_postmeta', $postmetaids );
+                        $wpdb->query( $wpdb->prepare( "DELETE FROM $wpdb->postmeta WHERE meta_id IN($in)", $postmetaids ) ); 
+                        do_action( 'deleted_postmeta', $postmetaids );
+                        foreach ( $post_ids as $post_id )
+                                wp_cache_delete( $post_id, 'post_meta' );
+                        return true;
+                }
+                return false;
+        }
+
+        /**
          * Triggers a caching of all oEmbed results.
          *
          * @param int $post_ID Post ID to do the caching for.