closes #3160

[arvados.git] / apps / workbench / app / models / arvados_base.rb

diff --git a/apps/workbench/app/models/arvados_base.rb b/apps/workbench/app/models/arvados_base.rb
index 3b5ac86f91c0c0f0134045a8e75a19bbc76c536d..6d427fdda1114658f09b3ed054e1856636a5cc1e 100644 (file)
--- a/apps/workbench/app/models/arvados_base.rb
+++ b/apps/workbench/app/models/arvados_base.rb
@@ -56,7 +56,7 @@ class ArvadosBase < ActiveRecord::Base
   end
 
   def self.columns
-    return @columns unless @columns.nil?
+    return @columns if @columns.andand.any?
     @columns = []
     @attribute_info ||= {}
     schema = arvados_api_client.discovery[:schemas][self.to_s.to_sym]