lib/dataset.rb in lazar-1.0.1 vs lib/dataset.rb in lazar-1.1.0

@@ -44,10 +44,10 @@
       substance = substance.id if substance.is_a? Substance
       feature = feature.id if feature.is_a? Feature
       if data_entries[substance.to_s] and data_entries[substance.to_s][feature.to_s]
         data_entries[substance.to_s][feature.to_s]
       else
-        nil
+        [nil]
       end
     end
 
     # Writers