仅当所有购物车商品都具有相同的特定标签时，才允许shopify购物车结帐

问题描述：

这是我的情况:

我为产品设置了2个主要集合/标签:日期(例如:星期一产品)和位置(例如:位置-vegas).所有的一天标签都具有相同的"-product"后缀，并且每个位置标签都具有相同的"location-"前缀
所有产品都可以贴上一日标签"monday-product"和一个位置标签"location-vegas".
如果某人购买了带有"location-vegas"标签的产品和另一个带有"location-la"标签的产品，则结帐将不起作用，因为它们之间没有匹配的"location-"标签.

我似乎无法弄清楚结帐的代码，以查看是否所有产品都具有匹配的"location-"标签.我也想对"-product"标签做同样的事情.

I can't seem to figure out the coding for the checkout to look if all products have matching "location-" tags. I would also like to do the same with the "-product" tags.

我已经尝试过此代码，但是它只会查看其中是否有一个，而不是每个都至少具有一个匹配项:

I've tried this code but it only looks if either is there, not if each has at least one matching:

{% for item in cart.items %}
    {% assign different_locations = false %}
    {% if item.product.tags == 'location-atwater' or 'location-nordelec' or 'location-place-ville-marie' %}
    {% assign different_locations = true %}
    {% endif %}
    {% endfor %}

    {% if different_locations == true %}
    [ 'CANNOT COMPLETE ORDER' ]
    {% else %}
    <p>
      <input type="submit" class="action_button add_to_cart" id="checkout" name="checkout" value="{{ 'cart.general.checkout' | t }}" />
    </p>
    {% endif %}

希望堆栈溢出社区可以提供帮助.

Hoping the stack overflow community can help.

答

查找所有位置标签，然后按唯一标签过滤:

Find all location tags and then filter by unique tags:

{% assign location_tags = '' %}

{% for item in cart.items %}
  {% for tag in item.product.tags %}
      {% if tag contains 'location' %}
        {% capture location_tags %}{{ location_tags }},{{ tag }}{% endcapture %}
      {% endif %}
  {% endfor %}
{% endfor %}

{% assign unique_location_tags = location_tags | remove_first: ',' | split: ',' | uniq %}

{% if unique_location_tags.size > 1 %}
  Disable checkout button...
{% endif %}

或者，您可以选择仅向数组添加唯一的位置标签以开始(然后不需要 uniq 过滤器):

Alternatively, you could choose to only add unique location tags to the array to begin with (and then you don't need the uniq filter):

{% if tag contains 'location' %}
  {% unless location_tags contains tag %}
    {% capture location_tags %}{{ location_tags }},{{ tag }}{% endcapture %}
  {% endunless %}
{% endif %}

仅当所有购物车商品都具有相同的特定标签时，才允许shopify购物车结帐

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