如何在Jinja2中将字符串转换为大写/小写? [英] How to convert string to uppercase / lowercase in Jinja2?

问题描述

我正在尝试将正在处理的Jinja模板中的字符串转换为大写.

I am trying to convert to upper case a string in a Jinja template I am working on.

在模板文档中，我读到:

upper(s)
    Convert a value to uppercase.

所以我写了这段代码:

{% if student.department == "Academy" %}
    Academy
{% elif  upper(student.department) != "MATHS DEPARTMENT" %}
    Maths department
{% endif %}

但是我收到此错误:

UndefinedError: 'upper' is undefined

那么，如何在Jinja2中将字符串转换为大写?

So, how do you convert a string to uppercase in Jinja2?

推荐答案

过滤器与 |filter语法:

Filters are used with the |filter syntax:

{% elif  student.department|upper != "MATHS DEPARTMENT" %}
    Maths department
{% endif %}

，或者您可以使用 str.upper()方法:

or you can use the str.upper() method:

{% elif  student.department.upper() != "MATHS DEPARTMENT" %}
    Maths department
{% endif %}

Jinja语法类似于Python ，而不是实际的Python. :-)

Jinja syntax is Python-like, not actual Python. :-)

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