def reg(request):
    if request.method == 'POST':
        form = RegForm(request.POST)
        if form.is_valid():
            reg = form.save()
            reg.save()

            if reg.jeniskelamin == 'l':
                reg.no_id = req.user.id + 1000
            else:
                reg.jeniskelamin == 'p':
                reg.no_id = req.user.id + 2000
            reg.save()
            user = reg.user
            reg.save(update_fields=['no_id'])