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Question

我正在尝试根据与产品共有的标签显示相关产品为此创建了一个部分并使用了这段代码 https://www.shopify.com/partners/blog/related-products 我使用了相同的标签 'test' 也替换了

{% include 'product-card-grid', max_height: max_height %}

与 {% 渲染 'product-item'，产品：产品 %} 因为在声望主题中没有 product-card-grid 的片段但产品页面上什么都没有显示，连标题都没有


    enter code here
{% if section.settings.show_related_products == true %}
<hr>
<div class="product-template__container page-width" itemscope itemtype="http://schema.org/Product" id="ProductSection-{{ section.id }}" data-section-id="{{ section.id }}" data-section-type="product" data-enable-history-state="true">
 
{% comment %}
  Number of related items per row,
  and number of rows.
{% endcomment %}

{% assign number_of_related_products_per_row = section.settings.related_grid_num %}
{% assign number_of_rows = section.settings.related_grid_row %}

{% comment %}
  Heading.
  Leave blank if you don't need one.
{% endcomment %}

{% assign heading = section.settings.related_title %}

{% comment %}
  Set either or both to true, if you want
  to limit yourself to items with same vendor, and/or type.
{% endcomment %}

{% assign same_vendor = false %}
{% assign same_type = false %}

{% comment %}
  Collections to ignore.
  Never pick related items from those.
{% endcomment %}

{% assign exclusions = 'frontpage,all' | split: ',' %}

{% comment %}
  Looking for a relevant collection.
{% endcomment %}

{% if product.metafields.c_f['Related Products'] %}
  {% assign collection = collections[product.metafields.c_f['Related Products']] %}
{% endif %}

{% assign found_a_collection = false %}
{% if collection and collection.all_products_count > 1 %}
  {% unless exclusions contains collection.handle %}
    {% assign found_a_collection = true %}
  {% endunless %}
{% endif %}
{% unless found_a_collection %}
  {% for c in product.collections %}
    {% unless exclusions contains c.handle or c.all_products_count < 2 %}
      {% assign found_a_collection = true %}
      {% assign collection = c %}
      {% break %}
    {% endunless %}
  {% endfor %}
{% endunless %}

{% comment %}
  If we have a relevant collection.
{% endcomment %}

{% if found_a_collection %}

  {% assign counter = 0 %}
  {% assign break_at = number_of_rows | times: number_of_related_products_per_row %}
  {% assign current_product = product %}
  
  {% case number_of_related_products_per_row %}
    {% when '1' %}
      {% assign grid_item_width = '' %}
        {%- assign max_height = 700 -%}
    {% when '2' %}
      {% assign grid_item_width = 'small--one-half medium-up--one-half' %}
      {%- assign max_height = 530 -%}
    {% when '3' %}
      {% assign grid_item_width = 'small--one-half medium-up--one-third' %}
      {%- assign max_height = 345 -%}
    {% when '4' %}
      {% assign grid_item_width = 'small--one-half medium-up--one-quarter' %}
      {%- assign max_height = 250 -%}
    {% when '5' %}
      {% assign grid_item_width = 'small--one-half medium-up--one-fifth' %}
      {%- assign max_height = 195 -%}
    {% when '6' %}
      {% assign grid_item_width = 'small--one-half medium-up--one-sixth' %}
      {%- assign max_height = 195 -%}
    {% else %}
      {% assign grid_item_width = 'small--one-half medium-up--one-quarter' %}
      {%- assign max_height = 195 -%}
  {% endcase %}


  {% capture related_items %}
<div class="grid grid--uniform{% if collection.products_count > 0 %} grid--view-items{% endif %}">
  
  {% for product in collections.all.products %}
  {% unless product.handle == current_product.handle %}
  {% unless same_vendor and current_product.vendor != product.vendor %}
  {% unless same_type and current_product.type != product.type %}
  {% comment %} 
    Replace 'test' below with prefered tag 
  {% endcomment %}
  {% if product.tags contains  'test' %} 
  <div class="grid__item {{ grid_item_width }}">
    {% render 'product-item', product: product %}}
  </div>
  {% assign counter = counter | plus: 1 %}
  {% if counter == break_at %}
  {% break %}
  {% endif %}
  {% endif %}
  {% endunless %}
  {% endunless %}
  {% endunless %}
  {% endfor %}
  
</div>
  {% endcapture %}

  {% assign related_items = related_items | trim %}

  {% unless related_items == blank %}

  <aside class="grid">
    <div class="grid__item">
      {% unless heading == blank %}
      <header class="section-header">
        <h3>{{ heading }}</h3>
      </header>
      {% endunless %}
      <div class="grid-uniform">
        {{ related_items }}
      </div>
    </div>
  </aside>

  {% endunless %}
     
{% endif %}
  
</div>
{% endif %}

{% schema %}
{
  "name": "Related products",
  "settings": [
    {
      "type": "checkbox",
      "id": "show_related_products",
      "label": "Show related products",
      "default": false
    },
    {
      "id": "related_title",
      "type": "text",
      "label": "Section title",
      "default": "Other fine products"
    },
    {
      "type": "select",
      "id": "related_grid_num",
      "label": "Products per row (Desktop)",
      "default": "4",
      "options": [
        {
          "value": "2",
          "label": "2"
        },
        {
          "value": "3",
          "label": "3"
        },
        {
          "value": "4",
          "label": "4"
        },
        {
          "value": "5",
          "label": "5"
        }
      ]
    },
    {
      "type": "select",
      "id": "related_grid_row",
      "label": "Number of rows (Desktop)",
      "default": "1",
      "options": [
        {
          "value": "1",
          "label": "1"
        },
        {
          "value": "2",
          "label": "2"
        },
        {
          "value": "3",
          "label": "3"
        }
      ]
    }
  ]
}
{% endschema %}  ```

Answer 1

我认为你在 {% render 'product-item', product: product %}} 上有一个额外的'}'，尝试删除它，你也可以通过这种方式测试你的变量

{{ variable | json }} 这将打印任何变量的数据。

您可以将类似这样的内容添加到您的代码中，以获得更好的样式，便于阅读。

<pre>{{ variable | json }}</pre>

也没有collection.all.products你需要用

collection.products

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