def thread(request, board_id, thread_id):

    profile = get_object_or_404(UserProfile, user=request.user)
    thread = get_object_or_404(Thread, pk=thread_id)
    post_form = PostForm()
    posts = thread.post_set.all().order_by('date_posted')

    paginator = Paginator(posts, 20)
    page = request.GET.get('page')
    try:
        posts = paginator.page(page)
    except PageNotAnInteger:
        posts = paginator.page(1)
    except EmptyPage:
        posts = paginator.page(paginator.num_pages)

    #user submits a post
    if request.method == 'POST':
        if 'addpost' in request.POST:
            post_form = PostForm(request.POST)
            if post_form.is_valid():
                post = Post(user=profile, thread=thread, message_markdown=request.POST['message_markdown'])
                post.save()
                return HttpResponseRedirect(REDIRECT_THREAD % (board_id, thread_id))
        elif 'gotopage' in request.POST:
            page_number = request.POST['pagenumber']
            return HttpResponseRedirect(REDIRECT_THREAD_PAGE % (board_id, thread_id, page_number))

    context = {
        'thread': thread,
        'posts': posts,
        'post_form': post_form,
        'profile': profile,
    }
    return render(request, 'bulletinboard/threadIndex.html', context)
def board(request, board_id):

    profile = get_object_or_404(UserProfile, user=request.user)
    board = get_object_or_404(Board, pk=board_id)
    thread_form = ThreadForm()
    post_form = PostForm()

    if request.method == 'POST':
        #user clicks the 'Add Thread' button
        if 'addthreadpost' in request.POST:
            thread_form = ThreadForm(request.POST)
            post_form = PostForm(request.POST)
            if thread_form.is_valid() and post_form.is_valid():
                thread = Thread(name=request.POST['name'], user=profile, board=board)
                thread.save()
                post = Post(user=profile, thread=thread, message_markdown=request.POST['message_markdown'])
                post.save()
                return HttpResponseRedirect(REDIRECT_BOARD % board_id)
        elif 'gotopage' in request.POST:
            page_number = request.POST['pagenumber']
            return HttpResponseRedirect(REDIRECT_BOARD_PAGE % (board_id, page_number))

    #sort threads according to their most recent post
    threads = Thread.objects.filter(board=board).annotate(latest_post=Max('post__date_posted')).order_by('thread_type', 'latest_post')
    posts = []
    for thread in threads:
        p = Post.objects.get(Q(thread=thread), Q(date_posted=thread.latest_post))
        posts.append(p)

    paginator = Paginator(threads, 20)
    page = request.GET.get('page')
    try:
        threads = paginator.page(page)
    except PageNotAnInteger:
        threads = paginator.page(1)
    except EmptyPage:
        threads = paginator.page(paginator.num_pages)

    context = {
        'board': board,
        'thread_form': thread_form,
        'post_form': post_form,
        'threads': threads,
        'posts': posts,
        'profile': profile,
    }
    return render(request, 'bulletinboard/boardIndex.html', context)