Navigation in django

Question

I\'ve just done my first little webapp in django and I love it. I\'m about to start on converting an old production PHP site into django and as part its template, there is a

Answer 1

I just wanted to share my minor enhancement to nivhab's post. In my application I have subnavigations and I did not want to hide them using just CSS, so I needed some sort of "if" tag to display the subnavigation for an item or not.

from django import template
register = template.Library()

@register.tag
def ifnaviactive(parser, token):
    nodelist = parser.parse(('endifnaviactive',))
    parser.delete_first_token()

    import re
    args = token.split_contents()
    template_tag = args[0]
    if len(args) < 2:
        raise template.TemplateSyntaxError, "%r tag requires at least one argument" % template_tag
    return NavSelectedNode(args[1:], nodelist)

class NavSelectedNode(template.Node):
    def __init__(self, patterns, nodelist):
        self.patterns = patterns
        self.nodelist = nodelist

    def render(self, context):
        path = context['request'].path
        for p in self.patterns:
            pValue = template.Variable(p).resolve(context)
            if path == pValue:
                return self.nodelist.render(context)
        return ""

You can use this basically in the same way as the active tag:

{% url product_url as product %}

{% ifnaviactive request product %}
    

        
Subnavi item for product 1
        ...
    
{% endifnaviactive %}