From e1a067953dd9139b01aaebe42ff158a944240540 Mon Sep 17 00:00:00 2001
From: mguetlein <martin.guetlein@gmail.com>
Date: Fri, 28 Jan 2011 12:20:08 +0100
Subject: extend whitelisting, get feature_type from algorithm

---
 lib/dataset.rb | 1 +
 1 file changed, 1 insertion(+)

(limited to 'lib/dataset.rb')

diff --git a/lib/dataset.rb b/lib/dataset.rb
index 640e3da..9c20968 100644
--- a/lib/dataset.rb
+++ b/lib/dataset.rb
@@ -51,6 +51,7 @@ module OpenTox
     # @param [String] uri Dataset URI
     # @return [OpenTox::Dataset] Dataset object with all data
     def self.find(uri, subjectid=nil)
+      return nil unless uri
       dataset = Dataset.new(uri, subjectid)
       dataset.load_all(subjectid)
       dataset
-- 
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