Django: with arguments '('',)' and keyword arguments '{}' not found

I'm kind of new to django. Been working with it for a while, but still do really silly mistakes all the time. This one though, I seem to have a hard time figuring out... Because I'm sorta new to this I'm not very good at explaining my problem, 开发者_如何学编程but here goes...

Error message complains about this bit in template:

{% url privblog object.id %}

urls.py extract:

urlpatterns = patterns('', url(r'^(?P<object_id>\d+)/$', 'privblog.views.privblog_detail', name="privblog"),)

views.py:

from django.shortcuts import render_to_response
from models import PrivBlog
from blog.models import Blog
from django.template import RequestContext

def privblog_detail(request, object_id=None):
    pblog_detail_object = PrivBlog.objects.filter(id=object_id)
    pblog_recent_object = PrivBlog.objects.all()[:5]
    tblog_recent_object = Blog.objects.all()[:5]
    context = {'pblog_detail_object': pblog_detail_object,
        'pblog_recent_object': pblog_recent_object,
        'tblog_recent_object': tblog_recent_object,
        }
    return render_to_response('privblog/privblog_detail.html', RequestContext(request, context))

You don't have an object called object in your context:

{% url privblog object.id %}

Should be

{% url privblog pblog_detail_object.id %}

You might also be having trouble here:

return render_to_response('privblog/privblog_detail.html', context, RequestContext(request))

I've never invoked render_to_response that way.