Doesn't display any comments

I use comment of Django applicaition, and the comment page looks
anything good, but when I post the comment, there is no comment
displayed on the page without any problem showing.

the template code:

<h2>Comments</h2>
{% get_comment_count for bookmarks.sharedbookmark
shared_bookmark.id as comment_count %}
{% get_comment_list for bookmarks.sharedbookmark
shared_bookmark.id as comment_list %}
{% for comment in comment_list %}
<div class="comment">
<p>Posted by: {{ comment.user_name }} on
{{ comment.submit_date }}</p>
{{ comment.comment|escape|urlizetrunc:40|
linebreaks }}
</div>
{% endfor%}
<p>Number of comments: {{ comment_count }}</p>
{% render_comment_form for bookmarks.sharedbookmark
shared_bookmark.id %}

view.py:

def bookmark_page(request, bookmark_id):
shared_bookmark = get_object_or_404(SharedBookmark,
id=bookmark_id)
variables = RequestContext(request, {
'shared_bookmark' : shared_bookmark
})
return render_to_response('bookmark_page.html', variables)

form.html:
{% if user.is_authenticated %}
<form action="{{ comment_form_target }}" method="post">
{% csrf_token %}
<p><label>Post a comment:</label><br />
<textarea name="comment" rows="10" cols="60"></textarea></p>
<input type="hidden" name="options" value="{{ options }}" />
<input type="hidden" name="target" value="{{ target }}" />
<input type="hidden" name="gonzo" value="{{ hash }}" />
<input type="submit" name="post" value="submit comment" />
</form>
{% else %}
<p>Please <a href="/login/">log in</a> to post comments.</p>
{% endif %}

I tried replace shared_bookmark.id with
object_pk,causing the page can't display the comment form.

How to fix this?
Thanks!

--
You received this message because you are subscribed to the Google Groups "Django users" group.
To post to this group, send email to django-users@googlegroups.com.
To unsubscribe from this group, send email to django-users+unsubscribe@googlegroups.com.
For more options, visit this group at http://groups.google.com/group/django-users?hl=en.