where_exp comparing with assigned variables

[tettoffensive]

I'm using liquidjs in 11ty.js and trying to put a section where I show 3 random card elements of the other posts in the current collection at the bottom. It mostly works except, I need to filter our the current post and the way I'm attempting to do it doesn't seem to work. I've been unable to find any documentation on this.

collection[tags] is giving me all the posts in the current collections properly and using sample: 3 is grabbing 3 random ones. However, when trying to filter out the current post It's not working at all. I'm trying to use where_exp but the comparison isn't working, so I think I just have the syntax wrong for accessing a variable in the comparison.

{% assign slug = page.fileSlug %}
{% assign stories = collections[tags] | where_exp: "item", "item.fileSlug != slug" | sample: 3 %}
{% for story in stories %}
  ...
{% endfor %}

If I hardcode it to test "item.fileSlug != 'current-pages-slug-here'" it successfully filters it out the matching fileSlug.

Is there a way to use an assigned variable in a where_exp?

[jg-rp]

The where_exp filter in LiquidJS does not yet support comparison expressions (item.fileSlug != slug in your example), like Jekyll's does. And, with the current implementation, I don't think slug would be in scope if it did.

So I'd say this is a feature request or compatibility bug.

[tettoffensive]

Understood. I decided to sample 4 (one more than I need) and then compare in the for loop and use a counter to keep it to 3 items but not include the current post.

I don't necessarily care if where_exp is the way to do it but it would be nicer to do in a more compact way.

But for now I have a solution.

[harttle]

Seems to be a valid use case, and I'm adding support for context-awareness. As this feature is introduced from jekyll and not related to shopify, we definitely should try to make it compatible with Jekyll.

[harttle]

Added support by #793 and released as 10.20.2. Please let me know if it still doesn't work.