Ticket #10791: multiple-post-types.2.patch

query.php

@@ -1486 +1486 @@
                         }
                 }
 
-                if ( !empty($qv['post_type']) )
-                        $qv['post_type'] = sanitize_user($qv['post_type'], true);
+                if ( !empty($qv['post_type']) ) {
+                        if(is_array($qv['post_type']))
+                                $qv['post_type'] = array_map('sanitize_user', $qv['post_type'], array(true));
+                        else
+                                $qv['post_type'] = sanitize_user($qv['post_type'], true);
+                }
 
                 if ( !empty($qv['post_status']) )
                         $qv['post_status'] = preg_replace('|[^a-z0-9_,-]|', '', $qv['post_status']);
@@ -2072 +2076 @@
 
                 if ( 'any' == $post_type ) {
                         $where .= " AND $wpdb->posts.post_type != 'revision'";
+                } elseif ( !empty( $post_type ) && is_array( $post_type ) && count($post_type) > 0) {
+                        $types_where = array();
+                        foreach($post_type as $type) {
+                                $types_where[] = " $wpdb->posts.post_type = '$type'";
+                        }
+                        $where .= ' AND ('.join(' OR', $types_where).')';
                 } elseif ( ! empty( $post_type ) ) {
                         $where .= " AND $wpdb->posts.post_type = '$post_type'";
                 } elseif ( $this->is_attachment ) {