Agile Web Development with Rails, Edition 5

8.6 Playtime 8.4 Iteration C4: Functional Testing

Turn on caching in development

rails dev:cache

Development mode is now being cached.

add a method to return the latest product

edit app/models/product.rb

  def self.latest

    Product.order(:updated_at).last

  end

cache sections

edit app/views/store/index.html.erb

<p id="notice"><%= notice %></p>

<h1>Your Pragmatic Catalog</h1>

<% cache ['store', Product.latest] do %>

  <% @products.each do |product| %>

    <% cache ['entry', product] do %>

      <div class="entry">

        <%= image_tag(product.image_url) %>

        <h3><%= product.title %></h3>

        <%= sanitize(product.description) %>

        <div class="price_line">

          <span class="price"><%= number_to_currency(product.price) %></span>

        </div>

      </div>

    <% end %>

  <% end %>

<% end %>

Turn caching back off

rails dev:cache

Development mode is now being cached.

8.6 Playtime 8.4 Iteration C4: Functional Testing