Question

我想使我的注册页面上的字段为可选字段，以便仅当用户提供了这些信息时才检查该字段的内容，否则，只需跳过对数据完整性的检查即可：

pubpgp = PGPKey.from_blob（request.POST ['pubpgp']。rstrip（“ \ r \ n”））[0]

pub pgp字段的

。但是我不知道该如何完成，欢迎您提供任何帮助。

models.py

pubpgp = models.TextField(verbose_name='Public RSA PGP Key - (ASCII-Armored)', blank=True, default='', max_length=3000)

views.py

def signup(request):
    if request.method == 'POST':
        form = RegistrationForm(request.POST)
        if form.is_valid():
            pubpgp = PGPKey.from_blob(request.POST['pubpgp'].rstrip("\r\n"))[0]
            if pubpgp.key_algorithm == PubKeyAlgorithm.RSAEncryptOrSign:
                form.save()
                messages.add_message(request, messages.INFO, "Thanks for you Registration, you are now able to login.")
                return redirect(reverse('login'))
            else:
                messages.add_message(request, messages.INFO, "Only RSA based PGP keys are allowed.")
        else:
            return render(request, 'signup.html', {'form': form})
    else:
        form = RegistrationForm()
        args = {'form': form}
        return render(request, 'signup.html', args)

预先感谢

Answer 1

由于如果未提供login参数，或者如果提供了参数并指示正确的算法，则要重定向到pubpgp视图，因此这应该包括对条件条件的细微调整声明：

def signup(request):
    if request.method == 'POST':
        form = RegistrationForm(request.POST)
        if form.is_valid():
            pubpgp = request.POST.get('pubpgp')
            # Allow redirect if pubpgp is empty or not empty but correct algorithm
            if not pubpgp or PGPKey.from_blob(pubpgp.rstrip("\r\n"))[0].key_algorithm == PubKeyAlgorithm.RSAEncryptOrSign:
                form.save()
                messages.add_message(request, messages.INFO, "Thanks for you Registration, you are now able to login.")
                return redirect(reverse('login'))
            else:
                messages.add_message(request, messages.INFO, "Only RSA based PGP keys are allowed.")
        else:
            return render(request, 'signup.html', {'form': form})
    else:
        form = RegistrationForm()
        args = {'form': form}
        return render(request, 'signup.html', args)

Django使字段可选，通过完整性检查

1 个答案: