def topic(request, slug):
"""
Topic-dedicated page.
This displays all messages in order and allows registered users to post
new messages. This page features anchor links per message and ability to
edit or delete last posted message for its author. Messages can be
“liked” too and this is reversible.
"""
topic = get_object_or_404(Topic, slug=slug)
messages = Message.objects.filter(topic=topic)
context = {'topic': topic,
'form': MessageForm(),
'messages': messages}
if request.user.is_authenticated():
if request.method == 'POST':
msg_form = MessageForm(request.POST)
if msg_form.is_valid():
message = msg_form.save(commit=False)
message.author = request.user
message.topic = topic
message.save()
msg_form.save_m2m()
return redirect('topic', slug=slug)
else:
context['form'] = msg_form # render errors
return render(request, 'glass/topic.html', context)
def new_topic(request):
"""
Creation of new topics.
This is mainly about processing of ‘TopicForm’ and ‘MessageForm’, since
every topic must have initial message.
"""
if request.method == 'GET':
context = {'topic_form': TopicForm(prefix='topic'),
'msg_form': MessageForm(prefix='msg')}
elif request.method == 'POST':
topic_form = TopicForm(request.POST, prefix='topic')
msg_form = MessageForm(request.POST, prefix='msg')
context = {'topic_form': topic_form,
'msg_form': msg_form}
if topic_form.is_valid():
new_topic = topic_form.save()
if msg_form.is_valid():
new_msg = msg_form.save(commit=False)
new_msg.author = request.user
new_msg.topic = new_topic
new_msg.save()
msg_form.save_m2m()
return redirect('topic', slug=new_topic.slug)
return render(request, 'glass/new-topic.html', context=context)