Django active view tag

django_active_view_tag.py

from django import template
register = template.Library()

# custom tag "active_view" to return 'active' in the template when the view is active
# usage : {% active_view request name='view-name' %}
# usage : {% active_view request url='/view/abs/url' %}
# usage : {% active_view request re='^/view/ur.*' %}

@register.simple_tag(takes_context=True)
def active_view(context, name=None, url=None, re=None, cond=True):
    request = context.request
    if name is not None:
        return 'active' if request.resolver_match.url_name == name and cond else ''
    elif url is not None:
        return 'active' if request.path_info == url and cond else ''
    elif re is not None:
        import re as _
        return 'active' if _.search(re, request.path_info) and cond else ''
    return ''

Credits to @waam