From 1eeb3e0eea9d96f0c95036791903be931a18367b Mon Sep 17 00:00:00 2001
From: Frank Dillon <frank@plainblack.com>
Date: Sun, 7 Sep 2008 16:30:17 +0000
Subject: [PATCH] Fixed a bug in getLineageSql which was returning an empty
 array ref in certain cases.

---
 lib/WebGUI/AssetLineage.pm | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/WebGUI/AssetLineage.pm b/lib/WebGUI/AssetLineage.pm
index ddcd2fdb2..46a4a8320 100644
--- a/lib/WebGUI/AssetLineage.pm
+++ b/lib/WebGUI/AssetLineage.pm
@@ -347,6 +347,10 @@ sub getLineage {
 	
     my $sql = $self->getLineageSql($relatives,$rules);
 
+    unless ($sql) {
+        return [];
+    }
+
 	my @lineage;
 	my %relativeCache;
 	my $sth = $self->session->db->read($sql);
@@ -613,7 +617,7 @@ sub getLineageSql {
 	}
 	## finish up our where clause
 	if (!scalar(@whereModifiers)) {
-        return [];
+        return "";
     }
 	$where .= ' and ('.join(" or ",@whereModifiers).')';
 	if (exists $rules->{whereClause} && $rules->{whereClause}) {