--- rules.orig/rules/modules/taxonomy.rules.inc	2009-05-28 03:51:35.000000000 -0700
+++ rules/rules/modules/taxonomy.rules.inc	2009-06-13 13:13:20.000000000 -0700
@@ -74,6 +74,21 @@
     'help' => t('Loading a taxonomy term will allow you to act on this term, for example you will be able to assign this term to a content.'),
     'module' => 'Taxonomy',
   );
+  $info['rules_action_taxonomy_assign_parent_term'] = array(
+    'label' => t('Assign a parent term to a term'),
+    'arguments' => array(
+      'taxonomy_term_parent' => array(
+        'type' => 'taxonomy_term',
+        'label' => t('Parent term'),
+      ),
+      'taxonomy_term_child' => array(
+        'type' => 'taxonomy_term',
+        'label' => t('Child term'),
+      ),
+    ),
+    'help' => t('Use two terms and make one the parent of the other. The terms must be previously loaded or added.'),
+    'module' => 'Taxonomy',
+  );
   $info['rules_action_taxonomy_term_assign_to_content'] = array(
     'label' => t('Assign a term to content'),
     'arguments' => array(
@@ -138,6 +153,15 @@
 }
 
 /**
+ * Action: Assign a term as the parent of another term.
+ */
+function rules_action_taxonomy_assign_parent_term($taxonomy_term_parent, $taxonomy_term_child, $settings) {
+  $sql = "INSERT INTO {term_hierarchy} (tid, parent) VALUES (%d, %d)";
+  db_query($sql, $taxonomy_term_child->tid, $taxonomy_term_parent->tid);
+  return array('taxonomy_term_child' => $taxonomy_term_child);
+}
+
+/**
  * Action: Assign or remove a term to content.
  */
 function rules_action_taxonomy_term_assign_to_content($node, $taxonomy_term, $settings) {