AWDwR Partial Template Question

The following code uses partial template. My question is: What happened to the looping of cart
items?

add_to_cart.rhtml

<div class="cart-title">Your Cart</div>
<table>
<% for cart_item in @cart.items %>
<tr>
<td><%= cart_item.quantity %>&times;</td>
<td><%= h(cart_item.title) %></td>
<td class="item-price"><%= number_to_currency(cart_item.price) %></td>
</tr>
<% end %>
<tr class="total-line">
<td colspan="2">Total</td>
<td class="total-cell"><%= number_to_currency(@cart.total_price) %></td>
</tr>
</table>
<%= button_to "Empty cart", :action => :empty_cart %>

Refactored add_to_cart.rhtml

<div class="cart-title">Your Cart</div>
<table>
<%= render(:partial => "cart_item", :collection => @cart.items) %>
<tr class="total-line">
<td colspan="2">Total</td>
<td class="total-cell"><%= number_to_currency(@cart.total_price) %></td>
</tr>
</table>
<%= button_to "Empty cart", :action => :empty_cart %>

_cart_item.rhtml

<tr>
<td><%= cart_item.quantity %>&times;</td>
<td><%= h(cart_item.title) %></td>
<td class="item-price"><%= number_to_currency(cart_item.price) %></td>
</tr>

The :collection parameter causes render(0 to invoke the template once for each item in the collection.

Dave