Restore ability to handle underdefined root (t/prefetch/incomplete.t)

[dbsrgits/DBIx-Class.git] / lib / DBIx / Class / ResultSetColumn.pm

diff --git a/lib/DBIx/Class/ResultSetColumn.pm b/lib/DBIx/Class/ResultSetColumn.pm
index 92abc07..a3ab2cc 100644 (file)
--- a/lib/DBIx/Class/ResultSetColumn.pm
+++ b/lib/DBIx/Class/ResultSetColumn.pm
@@ -93,7 +93,7 @@ sub new {
 
   # {collapse} would mean a has_many join was injected, which in turn means
   # we need to group *IF WE CAN* (only if the column in question is unique)
-  if (!$orig_attrs->{group_by} && keys %{$orig_attrs->{collapse}}) {
+  if (!$orig_attrs->{group_by} && $orig_attrs->{collapse}) {
 
     if ($colmap->{$select} and $rsrc->_identifying_column_set([$colmap->{$select}])) {
       $new_attrs->{group_by} = [ $select ];