1 files changed, 6 insertions, 0 deletions
diff --git a/lib/opentox.rb b/lib/opentox.rb
index 186c87a..7d8a8a2 100644
--- a/lib/opentox.rb
+++ b/lib/opentox.rb
@@ -13,7 +13,13 @@ module OpenTox
       include Mongoid::Timestamps
       store_in collection: klass.downcase.pluralize
       field :name,  type: String
+      field :source,  type: String
       field :warnings, type: Array, default: []
+
+      def warn warning
+        $logger.warn warning
+        warnings << warning
+      end
     end
     OpenTox.const_set klass,c
   end