prestashop show all products in category
{if !empty($smarty.get.order)}
{capture assign='ordering'}order={$smarty.get.order}&{/capture}
{else}
{assign var='ordering' value=''}
{/if}
{if !empty($smarty.get.resultsPerPage)}
{assign var='results_per_page' value=$smarty.get.resultsPerPage}
{else}
{assign var='results_per_page' value=25}
{/if}