Show product features in cart summary in Prestashop
<p>I am trying to show product features in the cart summary on one page checkout with using below code in <code>shopping-cart-product-line.tpl</code> but giving error.</p>

<pre><code>{foreach from=$product.features item=feature name=features}
{if $feature.id_feature == 9}   
{$features.value|escape:'htmlall':'UTF-8'}
{/if} 
{/foreach}
</code></pre>

<p>Do I need to do anything with <code>CartController.php</code>?</p>

<p>Error 
Notice: Undefined index: value in 
path/tools/smarty/sysplugins/smarty_internal_templatebase.php(157) : eval()'d code on line 89</p>