如何从包含的树枝模板中填充变量

Question

I want to be able to populate up variables from included twig templates, just like when you're extending another template. 我希望能够从包含的树枝模板中填充变量，就像在扩展另一个模板时一样。 Here's an example: 这是一个例子：

I have base.twig as follows: 我有base.twig如下：

{# base.twig #}
<html>
    <head></head>
    <body class="body {{class_from_index}}">
        <nav>...</nav>
        {% block content %}
        {% endblock %}
        <footer>...</footer>
    </body>
</html>

and index.twig as follows: 和index.twig如下：

{# index.twig #}
{% extends "base.twig" %}

{% set class_from_index = 'index' }

{% block content %}
    <div>My actual content</div>
{% endblock %}

doing like this, the variable class_from_index is populated to base.twig , when I'm rendering index.twig . 做这样的变量class_from_index填充到base.twig ，当我渲染index.twig 。 However if i have gallery.twig like this: 但是，如果我有像这样的gallery.twig：

{# gallery.twig #}
{% set class_from_index = 'gallery' %}
<div>
    A gallery
</div>

and adding {% include gallery.twig %} in index.twig , the variable class_from_index is not populated up to index.twig or base.twig . 并在index.twig添加{% include gallery.twig %} ，变量class_from_index不会填充到index.twig或base.twig 。 I know that if gallery.twig extends index.twig and index.twig extends base.twig , this will work, but this is not the case. 我知道，如果gallery.twig扩展index.twig和index.twig扩展base.twig ，这将起作用，但事实并非如此。

Is there a way to achieve what I'm trying to explain? 有没有办法实现我要解释的内容？ Thank you :) 谢谢：）

Answer 1

The problem 问题

If main.twig contains: 如果main.twig包含：

{% include "gallery.twig" %}

The compiled result will be: 编译结果将是：

protected function doDisplay(array $context, array $blocks = array())
{
    // line 1
    $this->loadTemplate("gallery.twig", "main.twig", 1)->display($context);
}

And if gallery.twig contains: 并且如果gallery.twig包含：

{% set var = 42 %}

The result is: 结果是：

protected function doDisplay(array $context, array $blocks = array())
{
    // line 1
    $context["var"] = 42;
}

As you can see, the context is not given as a reference, so your variable can't be populated. 如您所见，上下文没有作为参考，因此您的变量无法填充。

The PHP equivalent 相当于PHP

The reason is quite obvious. 原因很明显。 It looks very exotic to use variables from a lower scope to a upper one. 从较低范围到较高范围使用变量看起来很奇怪。 That's like if you were doing in PHP: 就像您使用PHP一样：

<?php

function gallery() {
  $var = 42;
}
gallery();

echo $var;

There must be a better solution to your problem... by designing your templates architecture another way. 必须通过另一种方式设计模板架构，才能更好地解决您的问题。 The question itself is not relevant, that's totally out of good practices. 这个问题本身并不重要，完全是出于良好实践。

如何从包含的树枝模板中填充变量

问题描述

1 个解决方案

解决方案1
1 已采纳 2015-11-09 08:14:45

The problem 问题

The PHP equivalent 相当于PHP

如何从包含的树枝模板中填充变量

问题描述

1 个解决方案

解决方案1 1 已采纳 2015-11-09 08:14:45

The problem 问题

The PHP equivalent 相当于PHP

解决方案1
1 已采纳 2015-11-09 08:14:45