report.py 文件源码

def get_qr_image(session: CashdeskSession) -> TemporaryFile:
    # TODO: check qr code
    qr = qrcode.QRCode(
        version=1,
        error_correction=qrcode.constants.ERROR_CORRECT_H,
        box_size=10,
        border=4,
    )
    tz = timezone.get_current_timezone()
    data = '{end}\tEinnahme\t{total}\tKassensession\t#{pk}\t{supervisor}\t{user}'.format(
        end=session.end.astimezone(tz).strftime('%d.%m.%Y\t%H:%M:%S'),
        total='{0:,.2f}'.format(session.get_cash_transaction_total()).translate(str.maketrans(',.', '.,')),
        pk=session.pk,
        supervisor=session.backoffice_user_after.get_full_name(),
        user=session.user.get_full_name(),
    )
    qr.add_data(data)
    qr.make()

    f = TemporaryFile()
    img = qr.make_image()
    img.save(f)
    return f