def queryset(self, request, qs):
qs = qs.filter(
assignment__course__in=list(request.user.profile.tutor_courses()))
if self.value() == 'notwithdrawn':
return Submission.qs_notwithdrawn(qs)
elif self.value() == 'valid':
return Submission.qs_valid(qs)
elif self.value() == 'tobegraded':
return Submission.qs_tobegraded(qs)
elif self.value() == 'gradingunfinished':
return qs.filter(state__in=[Submission.GRADING_IN_PROGRESS])
elif self.value() == 'graded':
return qs.filter(state__in=[Submission.GRADED])
elif self.value() == 'closed':
return Submission.qs_notified(qs)
else:
return qs
