Of course :) Here is my idea:
:
attr_accessor :thing, :another_thing, :and_another_thing
, , "" form_for helper, , :
<%= form.input :thing, :as => :boolean %>
<%= form.input :another_thing, :as => :text %>
... . (: formtastic. Rails, formtastic gem.)
, :
before_create :build_my_fancy_record
def build_my_fancy_record
self.storage_field = "#{thing} #{another_thing}"
end