如何在Liquid中按产品类型获取列表并实现浏览召回邮件关联产品展示

The original code has two critical issues preventing it from functioning as required:

1. Wrong product selection: Uses abandoned_products.first to fetch the earliest viewed product instead of the last one you need.
2. Invalid filtering logic: Liquid's where filter only supports equality checks, so where: 'id', '!=', abandoned_product.id can't exclude the original product from the related list.

{% assign abandoned_products = abandoned_visit.products_viewed %}
{% assign abandoned_product = abandoned_products.last %} {% comment %} Get the most recently viewed product {% endcomment %}
{% if abandoned_product %}
    <!-- Display the abandoned product -->
    <h2>You were looking at:</h2>
    <div>
        <a href="{{ abandoned_product.url }}">
            <img src="{{ abandoned_product.featured_image | img_url: 'medium' }}" alt="{{ abandoned_product.title }}">
            <p>{{ abandoned_product.title }}</p>
        </a>
        <p>{{ abandoned_product.price | money }}</p>
    </div>

    <!-- Fetch and display 3 more products from the same product type -->
    {% assign product_type = abandoned_product.type %}
    {% if product_type != blank %} {% comment %} Skip if product has no type set {% endcomment %}
        {% assign related_products = all_products | where: 'product_type', product_type | reject: 'id', abandoned_product.id | limit: 3 %}
        {% if related_products.size > 0 %}
            <h2>You might also like:</h2>
            <div>
                {% for product in related_products %}
                <div style="display: inline-block; margin: 10px;">
                    <a href="{{ product.url }}">
                        <img src="{{ product.featured_image | img_url: 'medium' }}" alt="{{ product.title }}">
                        <p>{{ product.title }}</p>
                    </a>
                    <p>{{ product.price | money }}</p>
                </div>
                {% endfor %}
            </div>
        {% endif %}
    {% endif %}
{% endif %}

• Target last viewed product: Switched abandoned_products.first to abandoned_products.last to pull the most recent item the user browsed.
• Valid product exclusion: Replaced the invalid inequality where check with reject: 'id', abandoned_product.id—this correctly removes the original product from the related results.
• Type existence check: Added {% if product_type != blank %} to avoid running unnecessary logic if the abandoned product has no type assigned.

内容的提问来源于stack exchange，提问作者dan k