使用url.patterns在Django中导航

Question

I learn Python, doing test project.

Case: I need to use class="active" for <li> based on page url. Now I use django.core.context_processors.request to take url from path .

How it looks now:

<li role="presentation" {% if request.path == '/' %}class="active"{% endif %}><a href="{% url 'home' %}">Home</a></li>
<li role="presentation" {% if '/groups' in request.path %}class="active"{% endif %}><a href="{% url 'groups' %}">Groups</a></li>

So, if I open main page - first <li> is active, if url contains "/groups" - secon <li> is active. And it works, but I want to do it more complex, comparing url with url.patterns in urls.py :

url(r'^$', 'students.views.students_list', name='home'),
url(r'^groups/$', 'students.views.groups_list', name='groups')

Question: how to do it? I can't just use {% url 'groups' %} in if -statement because of syntax error. Need some advice.

Answer 1

You can assign the result of url tag to the variable.

{% url 'groups' as groups_url %}

# use groups_url variable somewhere