Ticket #17379: export_attachments_for_cpt.diff

wp-admin/includes/export.php

@@ -32 +32 @@
 
         do_action( 'export_wp' );
 
+        $get_attachments = false;
+
         $sitename = sanitize_key( get_bloginfo( 'name' ) );
         if ( ! empty($sitename) ) $sitename .= '.';
         $filename = $sitename . 'wordpress.' . date( 'Y-m-d' ) . '.xml';
@@ -46 +48 @@
                         $args['content'] = 'post';
 
                 $where = $wpdb->prepare( "{$wpdb->posts}.post_type = %s", $args['content'] );
+                $get_attachments = true;
         } else {
                 $post_types = get_post_types( array( 'can_export' => true ) );
                 $esses = array_fill( 0, count($post_types), '%s' );
@@ -79 +82 @@
         // grab a snapshot of post IDs, just in case it changes during the export
         $post_ids = $wpdb->get_col( "SELECT ID FROM {$wpdb->posts} $join WHERE $where" );
 
+        if ( $get_attachments ) {
+                $attachment_ids = $wpdb->get_col( "SELECT ID
+                        FROM {$wpdb->posts}
+                        WHERE {$wpdb->posts}.post_type ='attachment'
+                        AND {$wpdb->posts}.post_parent IN (".implode(',', $post_ids).")" );
+                $post_ids = array_merge($post_ids, $attachment_ids);
+        }
+
         // get the requested terms ready, empty unless posts filtered by category or all content
         $cats = $tags = $terms = array();
         if ( isset( $term ) && $term ) {