def legacy_history(request, video, lang=None):
"""
In the old days we allowed only one translation per video.
Therefore video urls looked like /vfjdh2/en/
Now that this constraint is removed we need to redirect old urls
to the new view, that needs
"""
try:
language = video.subtitle_language(lang)
if language is None:
raise SubtitleLanguage.DoesNotExist("No such language")
except sub_models.SubtitleLanguage.DoesNotExist:
raise Http404()
return HttpResponseRedirect(reverse("videos:translation_history", kwargs={
'video_id': video.video_id,
'lang_id': language.pk,
'lang': language.language_code,
}))
