使用user.is_authenticated的Django模板标签模板不起作用

我有以下模板标记代码：

from django import template
from progmatic.cms.models import navigation,navigation_item
from django.template.defaultfilters import slugify
from django.shortcuts import render_to_response
from django.template import RequestContext

register = template.Library()

""" Gets the menu items you have entered in the admin.
 No arguments are accpeted"""

def get_hoofd_menu( ):
 menu = navigation.objects.get( slug = "hoofd-menu");
 mcontent = navigation_item.objects.filter( parent_menu = menu);
 return { 'mcontent' : mcontent }

def get_sub_menu( menu ):
 menu = navigation.objects.get( slug = slugify(menu) )
 mcontent = navigation_item.objects.filter( parent_menu = menu )
 c = RequestContext( request,{ 'mcontent': mcontent,} )

 return render_to_reponse('menu.html',RequestContext(request,{ 'mcontent' : mcontent }) )

register.inclusion_tag('menu.html')( get_hoofd_menu )
register.inclusion_tag('menu.html')( get_sub_menu )

模板(menu.html)如下：

{% block mainmenu %}
    <ul>
     {% for content in mcontent %}
      {% if content.login_required %}
       {% if content.to_page %}
        <li><a href="/page/{{ content.to_page_slug }}">{{ content.name }}</a></li>
       {% endif %}
       {% if content.to_url %}
        {% if content.external %}
         <li><a href="{{ content.to_url }}" rel="external">{{ content.name }}</a></li>
        {% else %}
         <li><a href="{{ content.to_url }}">{{ content.name }}</a></li>
        {% endif %}
       {% endif %}
      {% else %}
       {% if content.to_page %}
        <li><a href="/page/{{ content.to_page_slug }}">{{ content.name }}</a></li>
       {% endif %}
       {% if content.to_url %}
        {% if content.external %}
         <li><a href="{{ content.to_url }}" rel="external">{{ content.name }}</a></li>
        {% else %}
         <li><a href="{{ content.to_url }}">{{ content.name }}</a></li>
        {% endif %}
       {% endif %}
      {% endif %}
     {% endfor %}
    </ul>
    {% if user.is_authenticated %}
    JEEEEEEEJ LOGGED IN
    {% else %}
    Not logged in
    {% endif %}
    {% endblock %}

但它总是返回即使我登录时未登录…
有没有人知道这段代码有什么问题？

提前致谢.

问候,
Bloeper