def create(request, username, format):
""" Creates a new podcast list and links to it in the Location header """
title = request.GET.get('title', None)
if not title:
return HttpResponseBadRequest('Title missing')
slug = slugify(title)
if not slug:
return HttpResponseBadRequest('Invalid title')
plist = PodcastList.for_user_slug(request.user._id, slug)
if plist:
return HttpResponse('List already exists', status=409)
urls = parse_subscription(request.raw_post_data, format)
podcasts = [Podcast.for_url(url, create=True) for url in urls]
podcast_ids = map(Podcast.get_id, podcasts)
plist = PodcastList()
plist.title = title
plist.slug = slug
plist.user = request.user._id
plist.podcasts = podcast_ids
plist.save()
response = HttpResponse(status=201)
list_url = reverse('api-get-list', args=[request.user.username, slug, format])
response['Location'] = list_url
return response
