Jinja2动态变量构建 [英] Jinja2 dynamic variable building

问题描述

我的jinja模板获取了一个具有许多变量名称的对象，此属性各不相同，因此它们的名称也不同，我正在寻找一种基于前缀和for循环访问此属性的方法:

My jinja template gets an object which has many variable names, this attributes vary and so their names, I am looking for a way to access this attributes based on a prefix and a for loop:

{% for i in Object.vars %}
    <h1> {{ Object.attribute_ + i }} </h1>
{% endfor %}

我正在尝试访问Object.attribute_1，Object.attribute_2等.上面的代码当然行不通，但是我无法考虑这样做的方法.

I'm trying to access Object.attribute_1, Object.attribute_2 and so on. the code above of course won't work, but I can't think on a way of doing this.

推荐答案

请记住，在模板文件中执行过多的逻辑将导致(长期的)维护代码的问题.

Keep in mind that doing too much logic in your template files will cause (long term) issues to maintain your code.

我想说的是，使用

I would say, keep your logic outside of the template and create a list of your objects before rendering the template, using the getattr() function:

for i in Object.vars:
    list_of_objects.append(getattr(Object, 'attribute_' + i))

现在，在渲染模板时，将列表传递给这样:

Now when rendering the template pass the list to like that:

render_template('page.html', list_of_objects=list_of_objects)

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