Can you pass liquid code through a metafield in a template?

[EricWD]

Is there a way to include code in a metafield that can be used as liquid instructions?

For example:

• add a collection metafield (collection.metafields.custom.variant_collection_rule)

• add a value to the metafield (variant.title contains ‘Blue’)

• use that in my templat so that {%- if collection.metafields.custom.variant_collection_rule -%} would be interpreted as {%- if variant.title contains ‘Blue’ -%}

If that’s not possible, I welcome any alternate suggestion that doesn’t involve creating a new template for each condition.

[ThePrimeWeb]

Hey @EricWD ,

I’m not 100% sure of the use case here. Could you explain what you are trying to do rather than what code you are trying to make work?

[EricWD]

I am making a collection that includes specific product variants (in this example, only blue variants).

I added a template that pulls all products that include the variant and outputs all the variants of those products. Then I filter the variants so only the blue variants are displayed.

It works well when I hard-code {%- if variant.title contains ‘Blue’ -%} in the loop.

Now I want to make the code reuseable so that I can target other conditions (variant titles or variant metafields).

{% for product in collection.products %}
  {% for variant in product.variants %}
    {% if variant.title contains 'Blue' %}
       {%
          render 'product-variant-item' with
          prod: product,
          var: variant,
          product_columns: section.settings.columns,
          aspect_ratio: settings.product_listing_aspect_ratio,
          has_grid_reveal: true
        %}
      {% endif %}
   {% endfor %}
{% endfor %}

[ThePrimeWeb]

I don’t think liquid works like that, it’s not a programming language, it’s just a templating language.

If you want to do this, I think the ideal way is to create a metafield to select what you are targetting (Screenshot below)

And then another one to hold the value with free text (Screenshot below)

And use a switch case in the code (The code is definitely not accurate, it’s just to give you an idea)

{% case 'collections.metafields.custom.variant_type %}
   {% when 'title' %}
      {% for product in collection.products %}
        {% for variant in product.variants %}
          {% if variant.title contains 'Blue' %}
             {%
                render 'product-variant-item' with
                prod: product,
                var: variant,
                product_columns: section.settings.columns,
                aspect_ratio: settings.product_listing_aspect_ratio,
                has_grid_reveal: true
              %}
            {% endif %}
         {% endfor %}
      {% endfor %}
   {% when 'metafield' %}
      {% for product in collection.products %}
        {% for variant in product.variants %}
          {% if variant.metafields.custom.variant_type contains 'something' %}
             {%
                render 'product-variant-item' with
                prod: product,
                var: variant,
                product_columns: section.settings.columns,
                aspect_ratio: settings.product_listing_aspect_ratio,
                has_grid_reveal: true,
              %}
            {% endif %}
         {% endfor %}
      {% endfor %}
{% endcase %}

[EricWD]

Thanks. As I was going to sleep, I came up with a similar solution. Writing out the exact problem helped.

Add 3 metafields:

collection metafield: variant_type (‘title’ or ‘metafield’)
collection metafield: variant_value (string - value to be searched)
variant metafield: variant_collection (string - value of collection to be included in - set “use in automated collection”!)

{% for product in collection.products %}
  {% for variant in product.variants %}
    {% case collection.metafields.custom.variant_type %}
      {% when 'title' %}
        {% if variant.title contains collection.metafields.custom.variant_value %}
          {%
            render 'product-variant-item' with
            prod: product,
            var: variant,
            product_columns: section.settings.columns,
            aspect_ratio: settings.product_listing_aspect_ratio,
            has_grid_reveal: true
          %}
        {% endif %}
      {% when 'metafield' %}
        {% if variant.metafields.custom.variant_collection contains collection.metafields.custom.variant_value %}
          {%
            render 'product-variant-item' with
            prod: product,
            var: variant,
            product_columns: section.settings.columns,
            aspect_ratio: settings.product_listing_aspect_ratio,
            has_grid_reveal: true
         %}
       {% endif %}
    {% endcase %}
  {% endfor %}
{% endfor %}