This twig template is not DRY.

这个小树枝模板没有干。

{% set reviewer_0 = webform_token('[webform_submission:values:reviewer:0:entity:mail:clear]', webform_submission, [], options) %}
{% set reviewer_1 = webform_token('[webform_submission:values:reviewer:1:entity:mail:clear]', webform_submission, [], options) %}
{% set reviewer_2 = webform_token('[webform_submission:values:reviewer:2:entity:mail:clear]', webform_submission, [], options) %}
{% if reviewer_0|length %}{{ reviewer_0 }}{% else %}{% endif %}
{% if reviewer_1|length %},{{ reviewer_1 }}{% else %}{% endif %}
{% if reviewer_2|length %},{{ reviewer_2 }}{% else %}{% endif %}

I tried using the example from twig documentation

我尝试使用twig文档中的示例

{% for i in 0..10 %}
    * {{ i }}
{% endfor %}

like this:

如下所示：

{% for i in 0..10 %}
    {% set reviewer_{{ i }} = webform_token('[webform_submission:values:reviewer:'{{ i }}':entity:mail:clear]', webform_submission, [], options) %}
    {% if reviewer_{{ i }}|length %}{{ reviewer_{{ i }} }}{% else %}{% endif %}
{% endfor %}

But it doesn't work. I think the strings have to be concatenated somehow. How do I create this loop in twig?

但这并不管用。我认为这些字符串必须以某种方式连接在一起。如何在树枝中创建此循环？

Within {% %} you can't use {{ }} too.

在{% %}内，您也不能使用{{ }}。

First, you need to update

首先，您需要更新

webform_token('[webform_submission:values:reviewer:'{{ i }}':entity:mail:clear]', webform_submission, [], options)

into

webform_token('[webform_submission:values:reviewer:' ~ i ~ ':entity:mail:clear]', webform_submission, [], options)

and variable name seems not correct too, you can just remove _{{ i }} part. Each turn it will overridden anyway.

而且变量名似乎也不正确，可以只删除_{{i}}部分。无论如何，每一次转弯它都会被推翻。

Regards,

向您致敬，

I improved the twig based on @Emircan ERKUL's suggestion with the following:

我根据@Emircan Erkul的建议改进了小树枝，如下所示：

{% for i in 0..10 %}
{% if webform_token('[webform_submission:values:reviewers:' ~ i ~ ':entity:mail:clear]', webform_submission, [], options)|length %}
{% set reviewers = webform_token('[webform_submission:values:reviewers:' ~ i ~ ':entity:mail:clear]', webform_submission, [], options) %}
{{ reviewers }},
{% else %}{% endif %}
{% endfor %}

The comma at the end of {{ reviewers }}, is not good and results in storing reviewers like this:

{{审阅者}}末尾的逗号不正确，导致存储审阅者如下所示：

[email protected],[email protected],[email protected],

The trailing comma is trimmed off somewhere else and [email protected], is sent as [email protected]. I wouldn't mind improving the twig using a filter like the join filter except reviewers is not an array.

后面的逗号在其他地方被删除，[电子邮件受保护]，作为[电子邮件受保护]发送。我不介意使用像Join筛选器这样的筛选器来改进细枝，只是审阅者不是数组。

In any case, the element now offers up to 11 reviewers using DRY code and an simple mechanism for adding more.

无论如何，Element现在提供了多达11个使用干代码的审查者和一个简单的添加更多代码的机制。

If you want to use this pattern in a Drupal webform computed twig element, here's the entire element.

如果您想在Drupal WebForm Computed twig元素中使用该模式，下面是整个元素。

reviewer_mail:
    '#type': webform_computed_twig
    '#title': 'Reviewer mail'
    '#template': |-
        {% for i in 0..10 %}
        {% if webform_token('[webform_submission:values:reviewers:' ~ i ~ ':entity:mail:clear]', webform_submission, [], options)|length %}
        {% set reviewers = webform_token('[webform_submission:values:reviewers:' ~ i ~ ':entity:mail:clear]', webform_submission, [], options) %}
        {{ reviewers }},
        {% else %}{% endif %}
        {% endfor %}
    '#whitespace': spaceless
    '#store': true
    '#ajax': true

reviewers in webform_token('[webform_submission:values:reviewers:' is another element, an Entity Select element, multiple true, target_type user, filter type role.

Webform_token(‘[webform_submission:values:reviewers：’中的审阅者是另一个元素、实体选择元素、多个TRUE、TARGET_TYPE USER、FILTER类型角色。