How to add custom line item property based on collection type?

Store Design
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1

Hello, I am trying to add a custom line item property to the product template in the latest version of the Origin theme. I have done so successfully and it is showing, but I cannot seem to make it render based on collection type. For example:

{% if collection.handle == 'shopify' %}

The first line of code is the issue, but every variation I try does not work. If I do it based on product handle it works. I want all products that are part of www.mywebsite.com/collections/shopify to render this line item field.

right now I am using this code which seems to be picking up product tags which is odd, but it works. Still long term it isn’t ideal for my needs:

{% if product.handle == ‘small’ or ‘shopify’%}

Any ideas on how to fix this?

Thank you to everyone for the help!

2

if collection.handle == ‘shopify’

That will not trigger in a product template .

collection.handle applies only to the context of either the collection templates context or when referencing a collection object either on another object , as a variable , or a snippet parameter.

Check the products actual collection_s_ array handles

https://shopify.dev/docs/api/liquid/objects/product#product-collections

{% assign product_collections_handles == product.collections | map:'handle' | join:"" %}
`{{product_collections_handles }}`
{% if product_collections_handles contains 'shopify' %}
..

double check that the map filter syntax is correct and outputting expect results

https://shopify.dev/docs/api/liquid/filters/map

If you need exact match to avoid ambiguous contains matching then loop over the array instead for direct comparisons.

I.e. the string ‘hide-on-shopify’ will match ‘shopify’ using contains creating false positive.

The tag conditional needs to be disambiguated because of a logical error.

It’s not checking a handle it’s evaluating the literal string ‘shopify’ to true because of truthiness, i.e. the string exists and has non-zero value. So it should be triggering everywhere meaning it’s just a coincendence when a product has that tag.

{% if product.handle == ‘small’ or ‘shopify’%}

to

{% if product.handle == ‘small’ or product.handle == ‘shopify’ %}

https://shopify.dev/docs/api/liquid/basics#truthy-and-falsy