Add Google AdWords Conversion Tracking (javascript) code into a PrestaShop / Smarty page

Question

I'm running a PrestaShop site and want to integrate it with Google AdWords and with the Conversion Tracking feature. The PrestaShop code is in Smarty 3.

Now I've found that I could put Google's JS code at the end of a tpl file: order-confirmation.tpl. Here's the google code:

<script type="text/javascript"> 
/* <![CDATA[ */ 
var google_conversion_id = <my id>; 
var google_conversion_language = "en"; 
var google_conversion_format = "3"; 
var google_conversion_color = "ffffff"; 
var google_conversion_label = "<my label>"; 
var google_conversion_value = {$total}; 
/* ]]> */ 
</script> 
<script type="text/javascript" src="http://www.googleadservices.com/pagead/conversion.js"> 
</script> 
<noscript> 
<div style="display:inline;"> 
<img height="1" width="1" style="border-style:none;" alt="" src="http://www.googleadservices.com/pagead/conversion/<id>/?value=0&amp;label=<label>&amp;guid=ON&amp;script=0"/> 
</div> 
</noscript>

The problem is feeding the JS variable google_conversion_value with the content of the total order value.

I'm using Smarty 3, and I've tried to include the whole JS block between {literal} tags, or without then just surrounding the braces with spaces, without spaces, anything seems to work.

Also the same conversion value is in the section, a parameter in the link to googleadservices, and it is currently set to 0, but I want the $total value to go there too.

Answer 1

It looks like I had to call getOrderTotal on the $cart object:

var google_conversion_value = {$cart->getOrderTotal(false, Cart::BOTH_WITHOUT_SHIPPING)};

First parameter is if you want to get the total with taxes or not. Second parameter is a constant in Cart.php:

const ONLY_PRODUCTS = 1;
const ONLY_DISCOUNTS = 2;
const BOTH = 3;
const BOTH_WITHOUT_SHIPPING = 4;
const ONLY_SHIPPING = 5;
const ONLY_WRAPPING = 6;
const ONLY_PRODUCTS_WITHOUT_SHIPPING = 7;
const ONLY_PHYSICAL_PRODUCTS_WITHOUT_SHIPPING = 8;

Answer 2

I'm afraid $cart->getOrderTotal() doesn't work this way because the $cart variable is set to null when arriving in order-confirmation.tpl. We have to find another way...

I found a way which is not very smart, but do the job so far. We have to call the Cart static method getTotalCart with the id_cart parameter. The problem is we don't have any smarty var with this parameter. The only way I found is to get it from the request URI.

So first, get the cart_id this way (using regex_replace):

{assign var='id_cart' value={$request_uri|regex_replace:"/.*id_cart=([\d]*).*/":"$1"}}

Then call the getTotalCart method with this parameter :

{$cart->getTotalCart($id_cart)|regex_replace:"/[\D]+.*/":""}

So the complete code is :

<script type="text/javascript"> 
    /* <![CDATA[ */ 

    {assign var='id_cart' value={$request_uri|regex_replace:"/.*id_cart=([\d]*).*/":"$1"}}

    {literal}
    var google_conversion_id = <my id>; 
    var google_conversion_language = "en"; 
    var google_conversion_format = "3"; 
    var google_conversion_color = "ffffff"; 
    var google_conversion_label = "<my label>"; 
    var google_conversion_value = {/literal}{$cart->getTotalCart($id_cart)|regex_replace:"/[\D]+.*/":""}{literal};{/literal}
    /* ]]> */ 
</script> 

Answer 3

It seems to work for me in prestashop v1.5.4

<script type="text/javascript">
/* <![CDATA[ */
{assign var='id_cart' value={$request_uri|regex_replace:"/.*id_cart=([\d]*).*/":"$1"}}
{assign var='total_cart' value={$cart->getTotalCart($id_cart)|regex_replace:"/[\D]+.*/":""}}
{literal}
var google_conversion_id = YOUR_CONVERSION_ID;
var google_conversion_language = "en"; // or your language iso
var google_conversion_format = "3"; // or your format
var google_conversion_color = "ffffff";
var google_conversion_label = "YOUR_CONVERSION_LABEL";
var google_conversion_value = {/literal}{$total_cart}{literal};{/literal}
/* ]]> */
</script>
<script type="text/javascript" src="//www.googleadservices.com/pagead/conversion.js">
</script>
<noscript>
<div style="display:inline;">
<img height="1" width="1" style="border-style:none;" alt="" src="//www.googleadservices.com/pagead/conversion/YOUR_CONVERSION_ID/?value={$total_cart}&amp;label=YOUR_CONVERSION_LABEL&amp;guid=ON&amp;script=0"/>
</div>
</noscript>