From bea1e00688626c1fd527209f9349449364ec9fe2 Mon Sep 17 00:00:00 2001
From: Silvio <silvio@devlet.com.br>
Date: Wed, 15 Jun 2011 16:27:43 -0300
Subject: Adding $parents parameter

---
 taxonomy_node_tree.module | 21 +++++++++++++--------
 1 file changed, 13 insertions(+), 8 deletions(-)

diff --git a/taxonomy_node_tree.module b/taxonomy_node_tree.module
index 2d1fbc7..18184c6 100644
--- a/taxonomy_node_tree.module
+++ b/taxonomy_node_tree.module
@@ -219,18 +219,19 @@ function taxonomy_node_tree_get_empty($term, $clean = FALSE, &$list = array()) {
  * @param $clean
  *   Set to true to cleanup term before adding to list.
  *
+ * @param $parents
+ *   Set to TRUE to keep parent nodes even if they don't have
+ *   descendant nodes.
+ *
  * @param $list
  *   Array to store term list.
  *
  * @return
  *   Array with terms with descendant nodes.
- *
- * @todo
- *   Skip parents should be controlled by a parameter.
  */
-function taxonomy_node_tree_get_non_empty($term, $clean = FALSE, &$list = array()) {
+function taxonomy_node_tree_get_non_empty($term, $clean = FALSE, $parents = FALSE, &$list = array()) {
   // Add parents and terms with descendant nodes.
-  if ($term->parents[0] == 0 || taxonomy_node_tree_count($term) > 0) {
+  if (($term->parents[0] == 0 && $parents) || taxonomy_node_tree_count($term) > 0) {
     $save = drupal_clone($term);
 
     if ($clean == TRUE) {
@@ -244,7 +245,7 @@ function taxonomy_node_tree_get_non_empty($term, $clean = FALSE, &$list = array(
 
   if (is_array($term->below)) {
     foreach ($term->below as $below) {
-      taxonomy_node_tree_get_non_empty($below, $clean, $list);
+      taxonomy_node_tree_get_non_empty($below, $clean, $parents, $list);
     }
   }
 
@@ -266,10 +267,14 @@ function taxonomy_node_tree_get_non_empty($term, $clean = FALSE, &$list = array(
  * @param $clean
  *   Set to TRUE to remove branches without descendant nodes.
  *
+ * @param $parents
+ *   Set to TRUE to keep parent nodes even if they don't have
+ *   descendant nodes. Used just when $clean is also set to TRUE.
+ *
  * @return
  *  Hierarchical tree.
  */
-function taxonomy_node_tree_build($nodes, $terms, $clean = FALSE) {
+function taxonomy_node_tree_build($nodes, $terms, $clean = FALSE, $parents = FALSE) {
   $tree = taxonomy_node_tree_index($nodes, $terms);
   $tree = taxonomy_node_tree_relation($tree);
   $tree = taxonomy_node_tree_hierarchy($tree);
@@ -277,7 +282,7 @@ function taxonomy_node_tree_build($nodes, $terms, $clean = FALSE) {
   if ($clean == TRUE && is_array($tree)) {
     $terms = array();
     foreach ($tree as $term) {
-      $list  = taxonomy_node_tree_get_non_empty($term, TRUE);
+      $list  = taxonomy_node_tree_get_non_empty($term, TRUE, $parents);
       $terms = array_merge($terms, $list);
     }
 
-- 
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