def topic_detail(request, topic_id, page=1):
"""Render posts for a given topic
Available template variables:
`topic`:
Topic instance we give details about
`pagination`:
a pagination object to render a pagination
`posts`:
Sorted list of posts for given topic
`form`:
Form for new post creation or None if user is not allowed
to post here
:Template name: ``board_topic_detail.html``
:URL endpoint: ``board/topic_detail``
"""
topic = Topic.query.get(topic_id)
if topic is None:
raise NotFound()
if not topic.can_see(request.user):
raise Forbidden()
form = None
if topic.can_post(request.user):
form = PostForm(topic)
del form.title
if request.method == 'POST':
if form.validate(request.form):
form.create_post()
form.reset()
data = Post.query.filter(Post.topic==topic)\
.get_list('board/topic_detail', page,
request.per_page, {'topic_id': topic_id})
# Mark read up to last shown post date
check_unread(request.user, topic, data['posts'][-1].date)
return render_response('board_topic_detail.html', topic=topic,
posts=data['posts'], pagination=data['pagination'],
form=form.as_widget() if form else None)
