Agile Web Development Using Rails 6/

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Finishing the Cart

Finishing the Cart

Finish improving the functionality of the cart.

We'll cover the following...

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 in line 12, to add a button:

HTML
<% if notice %>
  <aside id="notice"><%= notice %></aside>
<% end %>
<h2>Your Pragmatic Cart</h2>
<ul>    
  <% @cart.line_items.each do |item| %>
    <li><%= item.quantity %> &times; <%= item.product.title %></li>
  <% end %>
</ul>
<%= button_to 'Empty cart', @cart, method: :delete,
    data: { confirm: 'Are you sure?' } %>

Modifying the controller

In the controller, let’s modify the destroy() ...