我想在用戶嘗試注冊時顯示注冊錯誤，但他做了一些錯誤的事情，例如輸入現(xiàn)有電子郵件地址或兩個密碼不匹配，或者不考慮 django 的默認密碼驗證器之一（例如輸入短密碼），并能夠使用引導警報設(shè)置每個錯誤的樣式，如我在下面的模板中所示models.py 中的用戶模型from django.db import modelsfrom django.contrib.auth.models import AbstractBaseUser, BaseUserManagerfrom django.conf import settingsclass User(AbstractBaseUser): email = models.EmailField(verbose_name="Email",max_length=250, unique=True) username = models.CharField(max_length=30, unique=True, null=True) date_joined = models.DateTimeField(verbose_name='Date joined', auto_now_add=True) last_login = models.DateTimeField(verbose_name='Last login', auto_now=True) is_admin = models.BooleanField(default=False) is_active = models.BooleanField(default=True) is_staff = models.BooleanField(default=False) is_superuser = models.BooleanField(default=False) full_name = models.CharField(verbose_name="Full name", max_length=150, null=True) profile_pic = models.ImageField(null=True, blank=True) USERNAME_FIELD = 'email' REQUIRED_FIELDS = ['full_name'] objects = MyAccountManager() def __str__(self): return self.full_name # For checking permissions. def has_perm(self, perm, obj=None): return self.is_admin # For which users are able to view the app (everyone is) def has_module_perms(self, app_label): return True
1 回答
繁花如伊
TA貢獻2012條經(jīng)驗 獲得超12個贊
一旦調(diào)用form.is_valid()表單的實例，是否存在錯誤就變得非常重要，因為這些錯誤存在于該實例上。因此，您需要將其傳遞回用戶才能顯示錯誤。
我的意思的一個簡單例子是：
def register(request):
form = CustomUserCreationForm()
if request.method == "POST":
form = CustomUserCreationForm(request.POST)
if form.is_valid():
user = form.save(commit=False)
user.is_valid = False
user.save()
# Maybe redirect here
else:
messages.info(request, 'invalid registration details')
return render(
request, "users/register.html",
{"form": form}
)
這樣，您就可以迭代模板中的錯誤。
<form method="post" action="">
{% csrf_token %}
{% if form.non_field_errors %}
{% for error in form.non_field_errors %}
{{ error }}
{% endfor %}
{% endif %}
{% for hidden in form.hidden_fields %}
{{ hidden }}
{% endfor %}
{% for field in form %}
{{ field }}
{{ field.errors.as_ul }}
{% endfor %}
<button class="btn btn-primary" type="submit">Submit</button>
</form>
像這樣的更通用的模板也會對您有所幫助，因為您可以將其重用于任何表單，而不是像示例中那樣指定特定的表單和字段名稱。
我要指出的另一件事是，您認為存在很多復雜性，例如對請求方法的大量檢查。還有3種不同的形式。如果頁面中有不同的表單，您可以命名提交按鈕，以便您可以檢查正在提交哪個表單。我在這里有一個答案來展示如何處理多種表單。
您這樣做時user.email沒有檢查用戶是否經(jīng)過身份驗證或檢查電子郵件是否存在，因此那里也會發(fā)生錯誤。
因此，為了簡化您的視圖，您可以執(zhí)行類似的操作（在命名表單按鈕之后）；
def home(request):
user = request.user
# for rendering texts
text_form = TextForm()
signin_form = SigninForm()
signup_form = SignupForm()
if request.method == "POST":
if 'text_form' in request.POST:
text_form = TextForm(request.POST)
if text_form.is_valid() and request.user.is_authenticated:
obj = text_form.save(commit=False)
author = User.objects.filter(email=user.email).first()
obj.author = author
text_form.save()
if 'signin_form' in request.POST:
signin_form = SigninForm(request.POST)
if signin_form.is_valid():
email = request.POST['email']
password = request.POST['password']
user = authenticate(email=email, password=password)
if user:
login(request, user)
elif user is None:
messages.error(request, '?Email or password is incorrect')
if 'signup_form' in request.POST:
signup_form = SignupForm(request.POST)
if signup_form.is_valid():
User = signup_form.save()
full_name = signup_form.cleaned_data.get('full_name')
email = signup_form.cleaned_data.get('email')
raw_password = signup_form.cleaned_data.get('password1')
account = authenticate(email=email, password=raw_password)
login(request, account)
texts = Text.objects.all().order_by('-id')
context = {
'signin_form': signin_form,
'signup_form': signup_form,
'text_form': text_form,
'texts': texts
}
return render(request, 'main/home.html', context)
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