def episode_for_slug_id(p_slug_id, e_slug_id):
""" Returns the Episode for Podcast Slug/Id and Episode Slug/Id """
if not p_slug_id:
raise QueryParameterMissing('p_slug_id')
if not e_slug_id:
raise QueryParameterMissing('e_slug_id')
# The Episode-Id is unique, so take that
if is_couchdb_id(e_slug_id):
return episode_by_id(e_slug_id)
# If we search using a slug, we need the Podcast's Id
if is_couchdb_id(p_slug_id):
p_id = p_slug_id
else:
podcast = podcast_for_slug_id(p_slug_id)
if podcast is None:
return None
p_id = podcast.get_id()
return episode_for_slug(p_id, e_slug_id)
def _decorator(request, slug_id, *args, **kwargs):
podcast = podcast_for_slug_id(slug_id)
if podcast is None:
raise Http404
# redirect when Id or a merged (non-cannonical) slug is used
if podcast.slug and slug_id != podcast.slug:
return HttpResponseRedirect(get_podcast_link_target(podcast))
return f(request, podcast, *args, **kwargs)
