How to change website directory using Jinja2?

Question

Django

I need to make it so that if a person is not authorized on the site, then he is redirected to another page, how to do this in an HTML file?

The code:

{% if user.is_authenticated %}
    <span id='name_of_user'>{{ user.username }}</span>
{% else %}
    ЗДЕСЬ НАДО СДЕЛАТЬ ПЕРЕНАПРАВЛЕНИЕ В ДРУГУЮ ДИРЕКТОРИЮ САЙТА
{% endif %}

Answer 1

Why such complications?
Isn't it more logical to do it at the server level?
In addition, believe me, if a moderately knowledgeable hacker wants to go to a page that checks authorization using templates, he will go there.

Answer 2

The template should be responsible only for the presentation, there is no place for logic in it.