votes.py 文件源码

def vote_results_csv(request):
    ctx = request.context
    user_id = authenticated_userid(request)
    if not user_id:
        raise HTTPUnauthorized
    histogram = request.GET.get('histogram', None)
    if histogram:
        try:
            histogram = int(histogram)
        except ValueError as e:
            raise HTTPBadRequest(e)
        if histogram > 25:
            raise HTTPBadRequest(
                "Please select at most 25 bins in the histogram.")
    widget = ctx._instance.widget
    if widget.activity_state != "ended":
        permissions = ctx.get_permissions()
        if P_ADMIN_DISC not in permissions:
            raise HTTPUnauthorized()
    output = BytesIO()
    output_utf8 = TextIOWrapper(output, encoding='utf-8')
    ctx._instance.csv_results(output_utf8, histogram)
    output_utf8.detach()
    output.seek(0)
    return Response(body_file=output, content_type='text/csv', charset="utf-8")