<% content_tag_for :ul, @books do %> <% @books.each do |book| %> <% content_tag_for :li, book do %> <%= h book.title %> by <%= h book.author %> <% end %> <% end %> <% end %>
<%= sortable_element dom_id(@books) %> <%= link_to 'New book', new_book_path %>