Ticket #21803: add_search_fields.patch

wp-includes/query.php

@@ -2187 +2187 @@
                         $searchand = '';
                         foreach( (array) $q['search_terms'] as $term ) {
                                 $term = esc_sql( like_escape( $term ) );
-                                $search .= "{$searchand}(($wpdb->posts.post_title LIKE '{$n}{$term}{$n}') OR ($wpdb->posts.post_content LIKE '{$n}{$term}{$n}'))";
-                                $searchand = ' AND ';
+                                $search_fields = array( $wpdb->posts.post_title, $wpdb->posts.post_content );
+                                $search_fields = apply_filters( 'search_fields', $search_fields );
+                                if (is_array($search_fields)) {
+                                        foreach( $search_fields as &$s )
+                                                $s = "({$s} LIKE '{$n}{$term}{$n}')";
+                                        $search .= "{$searchand}(".implode( ' OR ', $search_fields  ).")";
+                                        $searchand = ' AND ';
+                                }
                         }
 
                         if ( !empty($search) ) {