Agile Web Development with Rails 8

Iteration E3: Finishing the Cart

We know by now that to implement the empty-cart function, we have to add a link to the cart and modify the destroy method in the carts controller to clean up the session.

Start with the template and use the button_to method to add a button:

rails80/depot_h/app/views/carts/_cart.html.erb

<div id="<%= dom_id cart %>">
  <h2 class="font-bold text-lg mb-3">Your Pragmatic Cart</h2>

  <ul class="list-none list-inside">
    <% cart.line_items.each do |item| %>
      <li><%= item.quantity %> &times; <%= item.product.title %></li>
    <% end %>
  </ul>
</div>

      <%= button_to 'Empty Cart', cart, method: :delete,
class: 'ml-4 rounded-lg py-1 px-2 text-white bg-green-600' ...