Dynamic remarketing in liquid

dynamic-remarketing.liquid

<!-- Google Code for Remarketing Tag -->
<!--------------------------------------------------
Remarketing tags may not be associated with personally identifiable information or placed on pages related to sensitive categories. See more information and instructions on how to setup the tag on: http://google.com/ads/remarketingsetup
--------------------------------------------------->

{% assign prodid = '' %}
{% assign value = '' %}

{% if template contains 'index' %}
	{% assign pagetype = 'home' %}
{% elsif template contains 'search' %}
	{% assign pagetype = 'searchresults' %}
{% elsif template contains 'collection' %}
	{% assign pagetype = 'category' %}
{% elsif template contains 'product' %}
	{% capture var_id %}{% for variant in product.variants %}{{ variant.id }}{% break %}{% endfor %}{% endcapture %}
	{% capture prodid %}'shopify_DK_{{ product.id }}_{{ var_id }}'{% endcapture %} 
	{% assign pagetype = 'product' %}
	{% assign value = product.price %} 
{% elsif template contains 'cart' %}
	
		{% assign pagetype = 'cart' %}
		{% assign value = cart.total_price %}
		{% assign separator = ',' %}
		
		{% capture prodid %}[{% for item in cart.items %}{% capture var_id %}{{ item.variant_id }}{% endcapture %}{% capture product_id %}{{ item.product_id }}{% endcapture %}{% if forloop.last %}{% assign separator = ']' %}{% endif %}'shopify_DK_{{product_id}}_{{var_id}}'{{separator}}{% endfor %}{% endcapture %}
		
{% else %}
{% assign pagetype = 'other' %}
{% endif %}

{% if value != '' %} 
	<script type="text/javascript">
	var value = {{ value | money_without_currency | remove: "." | replace: ',', '.' | round: 2 }};
	var google_tag_params = {
	ecomm_prodid: {{prodid}}, 
	ecomm_pagetype: '{{pagetype}}',
	ecomm_totalvalue: '{{cart.total_price | money_without_currency | remove: "." | replace: ',', '.' | round: 2}}'
	};
	google_tag_params.ecomm_totalvalue = value;
	</script>

{% else %}
	<script type="text/javascript">
	var google_tag_params = {
	ecomm_prodid: '',
	ecomm_pagetype: '{{pagetype}}',
	ecomm_totalvalue: '{{cart.total_price | money_without_currency | remove: "." | replace: ',', '.' | round: 2}}'
	}; 
	</script>

{% endif %}