Ticket #13096: get_adjacent_post.patch

wp-includes/link-template.php

@@ -989 +989 @@
  * @param bool $previous Optional. Whether to retrieve previous post.
  * @return string
  */
-function get_adjacent_post($in_same_cat = false, $excluded_categories = '', $previous = true) {
+function get_adjacent_post($in_same_cat = false, $excluded_categories = '', $previous = true, $taxonomy = 'category') {
         global $post, $wpdb;
 
         if ( empty( $post ) )
@@ -1003 +1003 @@
                 $join = " INNER JOIN $wpdb->term_relationships AS tr ON p.ID = tr.object_id INNER JOIN $wpdb->term_taxonomy tt ON tr.term_taxonomy_id = tt.term_taxonomy_id";
 
                 if ( $in_same_cat ) {
-                        $cat_array = wp_get_object_terms($post->ID, 'category', array('fields' => 'ids'));
-                        $join .= " AND tt.taxonomy = 'category' AND tt.term_id IN (" . implode(',', $cat_array) . ")";
+                        $cat_array = wp_get_object_terms($post->ID, $taxonomy, array('fields' => 'ids'));
+                        $join .= " AND tt.taxonomy = '".$taxonomy."' AND tt.term_id IN (" . implode(',', $cat_array) . ")";
                 }
 
-                $posts_in_ex_cats_sql = "AND tt.taxonomy = 'category'";
+                $posts_in_ex_cats_sql = "AND tt.taxonomy = '".$taxonomy."'";
                 if ( !empty($excluded_categories) ) {
                         $excluded_categories = array_map('intval', explode(' and ', $excluded_categories));
                         if ( !empty($cat_array) ) {
@@ -1016 +1016 @@
                         }
 
                         if ( !empty($excluded_categories) ) {
-                                $posts_in_ex_cats_sql = " AND tt.taxonomy = 'category' AND tt.term_id NOT IN (" . implode($excluded_categories, ',') . ')';
+                                $posts_in_ex_cats_sql = " AND tt.taxonomy = '".$taxonomy."' AND tt.term_id NOT IN (" . implode($excluded_categories, ',') . ')';
                         }
                 }
         }