{foreach from=$groupProducts item=products name=groupProduct}
{if isset($products) && $products}
<div class="row-data-fields">
  <div class="product_list grid row-item">
  {foreach from=$products item=product name=products}
    {include file="catalog/_partials/miniatures/product.tpl" product=$product}
  {/foreach}
  </div>
</div>
{/if}
{/foreach}