bisscomm/refinerycms-products

<ul>
  <% promoted_root_categories.each do | category | %>
    <li>
      <%= link_to category.title, refinery.products_category_path(category) %>

      <% unless category.products.empty? %>
        <ul class="products">
          <% category.products.each do | product | %>
            <li><%= link_to product.title, refinery.products_product_path(product) %></li>
          <% end %>
        </ul>
      <% end %>
    </li>
  <% end %>
</ul>