Prestashop模板中JavaScript中的Smarty

Question

I am trying to create data layer with id's of products in prestashop cart page (.tpl file).

Here's smarty code that displays products id's added to cart

{foreach $products as $product}
      {$product.id_product}
    {/foreach}

It displays it in this way: 123 284 495 392

I would like to make id's appear in script this way:

{literal}
<script>
  gtag('event', 'page_view', {'send_to': 'AW-‎XXXXXXXX',
   'ecomm_prodid': '123,284,495,392',
   'ecomm_pagetype': 'cart',
   'ecomm_totalvalue': '{/literal}{displayPrice price=$total_products_wt}{literal}'
  });
</script>
 {/literal}

Answer 1

You could add a not last item conditional, within your foreach loop like this :

{literal}
<script>
gtag('event', 'page_view', {'send_to': 'AW-‎XXXXXXXX',
'ecomm_prodid': [{/literal}{foreach from=$products item=product name=prodid}'{$product.id_product}'{if $smarty.foreach.prodid.last}{else},{/if}{/foreach}{literal}]‌​,
'ecomm_pagetype': 'cart',
'ecomm_totalvalue': '{/literal}{displayPrice price=$total_products_wt}{literal}'
});
</script>
{/literal}