diff --git a/uc_attribute/views/uc_attribute_handler_field_combination.inc b/uc_attribute/views/uc_attribute_handler_field_combination.inc
index 9375955..4e55f50 100644
--- a/uc_attribute/views/uc_attribute_handler_field_combination.inc
+++ b/uc_attribute/views/uc_attribute_handler_field_combination.inc
@@ -32,6 +32,7 @@ class uc_attribute_handler_field_combination extends views_handler_field {
     $values['nid'] = $nid;
 
     $query_select_count = $query_select  . " COUNT(*),";
+    $attribute_ids = array();
     foreach ($result as $prod_attr) {
       $query_select .= " ao$i.aid AS aid$i, ao$i.name AS name$i, ao$i.oid AS oid$i, po$i.ordering,";
       $query_from .= " ({uc_product_options} AS po$i LEFT JOIN {uc_attribute_options} AS ao$i ON po$i.oid = ao$i.oid AND po$i.nid = :nid),";
@@ -121,15 +122,6 @@ class uc_attribute_handler_field_combination extends views_handler_field {
     );
   }
 
-  function pre_render(&$values) {
-    // TODO: Get the grouped values (by nid or by stock depending if used as a relationship or not)
-    // If there are no values to render (displaying a summary, or query returned no results),
-    // or if this is not a grouped field, do nothing specific.
-    if (isset($this->view->build_info['summary']) || empty($values) || !$this->options['group']) {
-      return parent::pre_render($values);
-    }
-  }
-
   function render($values) {
     $items = array();
     $combination = $values->{$this->field_alias};