rails ActiveAdmin nested form has_one accepts_attributes_for formtastic issue

Question

I am using ActiveAdmin and Rails 3.1 -- having problem understanding whether the following is a bug, or if there is some way to do it correctly that I am not understanding.

Answer 1

I found a better solution for you. You can use :for option in inputs helper.

f.inputs "Meta Data", for: [:meta_data, f.object.meta_data || MetaData.new] do |meta_form|
  meta_form.input :title
  meta_form.input :description
  meta_form.input :keywords
end

I think this might work too, but I didn't check

f.inputs :title, :desctiption, :keywords, 
  name: "Meta Data",
  for: [:meta_data, f.object.meta_data || MetaData.new]