module ActionView::Helpers::TranslationHelper

def scope_key_by_partial(key)
  if key.to_s.first == "."
    if @virtual_path
      @virtual_path.gsub(%r{/_?}, ".") + key.to_s
    else
      raise "Cannot use t(#{key.inspect}) shortcut because path is not available"
    end
  else
    key
  end
end