def _create_trans(video, latest_version=None, lang_code=None, forked=False):
translation = SubtitleLanguage()
translation.video = video
translation.language = lang_code
translation.is_original = False
translation.is_forked = forked
if not forked:
translation.standard_language = video.subtitle_language()
translation.save()
v = SubtitleVersion()
v.language = translation
if latest_version:
v.version_no = latest_version.version_no + 1
else:
v.version_no = 1
v.datetime_started = datetime.now()
v.save()
if latest_version is not None:
for s in latest_version.subtitle_set.all():
s.duplicate_for(v).save()
return translation
