Twig 我们可以在细枝循环中切换值吗

当包含一个细枝文件，比如说显示一个两列布局，一边有一个图像，另一边有一个copytext时，设计者通常要求在每一行中切换图像位置。第一行的图像在左边，第二行的图像在右边，依此类推。 我通常通过向上计数值

image\u orientation\u count

并根据其是否为奇数，向包含的细枝文件传递一些标志，如下所示：

{% set image_orientation_count = 1 %}
{% for mw_id in post.modeteaser_list %}

{% set teaser = TimberPost(mw_id) %}

{% if image_orientation_count is odd %}
    {% set image_orientation = 'left' %}
{% else %}
    {% set image_orientation = 'right' %}
{% endif %}

{% include 'templates/blocks/section-image-wide-text-small.twig' with {'title': teaser.title, 'copytext': teaser.copytext, 'mood_image': teaser.mood_image, 'button_url': teaser.button_url, 'button_label': teaser.button_label, 'image_orientation': image_orientation } only %}
{% set image_orientation_count = image_orientation_count + 1 %}

{% endfor %}

{% for ... %}
{% include "foo.twig" with {
  "image_orientation": cycle(["left", "right"], loop.index0)
} only %}
{% endfor %}

我想知道是否有更优雅的方法来解决这类问题。不知何故，我用的方式感觉“便宜”；）

我建议你：

{% for mw_id in post.modeteaser_list %}

    {% set teaser = TimberPost(mw_id) %}
    {% set image_orientation = loop.index is odd ? 'left' : 'right' %}

    {% include 'templates/blocks/section-image-wide-text-small.twig' with {
    'title': teaser.title, 
    'copytext': teaser.copytext, 
    'mood_image': teaser.mood_image, 
    'button_url': teaser.button_url, 
    'button_label': teaser.button_label, 
    'image_orientation': image_orientation 
    } only %}

{% endfor %}

使用and三元条件运算符，

我建议您：

{% for mw_id in post.modeteaser_list %}

    {% set teaser = TimberPost(mw_id) %}
    {% set image_orientation = loop.index is odd ? 'left' : 'right' %}

    {% include 'templates/blocks/section-image-wide-text-small.twig' with {
    'title': teaser.title, 
    'copytext': teaser.copytext, 
    'mood_image': teaser.mood_image, 
    'button_url': teaser.button_url, 
    'button_label': teaser.button_label, 
    'image_orientation': image_orientation 
    } only %}

{% endfor %}

使用and三值条件运算符，

也可以使用如下函数：

{% set image_orientation_count = 1 %}
{% for mw_id in post.modeteaser_list %}

{% set teaser = TimberPost(mw_id) %}

{% if image_orientation_count is odd %}
    {% set image_orientation = 'left' %}
{% else %}
    {% set image_orientation = 'right' %}
{% endif %}

{% include 'templates/blocks/section-image-wide-text-small.twig' with {'title': teaser.title, 'copytext': teaser.copytext, 'mood_image': teaser.mood_image, 'button_url': teaser.button_url, 'button_label': teaser.button_label, 'image_orientation': image_orientation } only %}
{% set image_orientation_count = image_orientation_count + 1 %}

{% endfor %}

{% for ... %}
{% include "foo.twig" with {
  "image_orientation": cycle(["left", "right"], loop.index0)
} only %}
{% endfor %}

您也可以使用如下功能：

{% set image_orientation_count = 1 %}
{% for mw_id in post.modeteaser_list %}

{% set teaser = TimberPost(mw_id) %}

{% if image_orientation_count is odd %}
    {% set image_orientation = 'left' %}
{% else %}
    {% set image_orientation = 'right' %}
{% endif %}

{% include 'templates/blocks/section-image-wide-text-small.twig' with {'title': teaser.title, 'copytext': teaser.copytext, 'mood_image': teaser.mood_image, 'button_url': teaser.button_url, 'button_label': teaser.button_label, 'image_orientation': image_orientation } only %}
{% set image_orientation_count = image_orientation_count + 1 %}

{% endfor %}

{% for ... %}
{% include "foo.twig" with {
  "image_orientation": cycle(["left", "right"], loop.index0)
} only %}
{% endfor %}

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非常感谢。这正是我所希望的！：）为你高兴，为你的归来感谢你！这正是我所希望的！：）为你高兴，为你的家人高兴return@Maerlyn：我不知道循环函数，所以谢谢你+1:）@Maerlyn:我不知道循环函数，所以谢谢你+1:）