1 files changed, 8 insertions, 0 deletions
diff --git a/actionpack/lib/action_view/helpers/ajax_helper.rb b/actionpack/lib/action_view/helpers/ajax_helper.rb
index 1a75f9372b..5de33868e9 100644
--- a/actionpack/lib/action_view/helpers/ajax_helper.rb
+++ b/actionpack/lib/action_view/helpers/ajax_helper.rb
@@ -74,6 +74,14 @@ module ActionView
         script_decorator(attributes)
       end
 
+      def observe_form(name, options = {})
+        options[:observed] = name
+        attributes = extract_observer_attributes!(options)
+        attributes["data-js-type"] = "form_observer"
+
+        script_decorator(attributes)
+      end
+
       def script_decorator(options)
         attributes = %w(type="application/json")
         attributes += options.map{|k, v| k + '="' + v.to_s + '"'}