即使所有输入字段都已填写，“此字段是必需的”也会继续显示

Posted 2023-02-24

【中文标题】即使所有输入字段都已填写，“此字段是必需的”也会继续显示

【英文标题】："This field is required" keeps showing even all the input field is filled

【发布时间】：2021-02-24 09:25:54

【问题描述】：

请帮忙。注册页面一直显示此字段为必填错误。我是初学者。谢谢你

models.py

从 django.db 导入模型

从 django.contrib.auth.models 导入 AbstractBaseUser、BaseUserManager

类 UserManager(BaseUserManager)：

def create_user(self, email, username, full_name, password=None):
    if not email:
        raise ValueError("Users must have an email adress")
    if not username:
        raise ValueError("Users must have a username")
    if not password:
        raise ValueError("Users must have a password")
    if not full_name:
        raise ValueError("Users must have a name")
    user = self.model(
        email=self.normalize_email(email), # return lowercase
        username=username,
        full_name=full_name,
    )
    user.set_password(password) # users set password and change password
    user.full_name = full_name
    user.save(using=self._db)# using the default database in settings.py
    return user

def create_superuser(self, email, username, full_name, password=None):
    user = self.create_user(
        email=self.normalize_email(email),  # return lowercase
        username=username,
        full_name=full_name,
        password=password,
    )
    user.is_admin = True
    user.is_staff = True
    user.is_superuser = True
    user.save(using=self._db)  # using the default database in settings.py
    return user

类帐户（AbstractBaseUser）：

email               = models.EmailField(
    verbose_name="email",
    max_length=60,
    unique=True,
)
username            = models.CharField(max_length=30, unique=True)
full_name           = models.CharField(max_length=30, blank=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)
profile_image       = models.ImageField(max_length=255, null=True, blank=True, default=default_profile)
hide_email          = models.BooleanField(default=True)

USERNAME_FIELD = "email"
REQUIRED_FIELDS = ["username", "full_name"]

objects = UserManager()   # tie account to my custom user manager

def __str__(self):
    return self.username

# "Does the user have a specific permission?"
def has_perm(self, perm, obj=None):
    return True

# "Does the user have permissions to view the app `app_label`?"
def has_module_perms(self, app_label):
    return True

views.py

从 django.shortcuts 导入渲染，重定向

从 django.contrib.auth 导入登录、注销、身份验证

从 account.forms 导入 RegistrationForm、AccountAuthenticationForm

def register_view（请求）：

user = request.user
if user.is_authenticated:
    return redirect('home')
if request.method == 'POST':
    form = RegistrationForm(request.POST)
    if form.is_valid():
        form.save()
        email = form.cleaned_data.get('email').lower()
        raw_password = form.cleaned_data.get('password1')
        user = authenticate(email=email, password=raw_password)
        login(request, user)
        return redirect('home')
else:
    form = RegistrationForm()
return render(request, 'account/register.html', 'registration_form': form)

定义登录视图（请求）：

context = 

user = request.user
if user.is_authenticated:
    return redirect("home")

if request.POST:
    form = AccountAuthenticationForm(request.POST)
    if form.is_valid():
        email = request.POST.get('email')
        password = request.POST.get('password')
        user = authenticate(request, email=email, password=password)
        if user is not None:
            login(request, user)
            return redirect("home")
else:
    form = AccountAuthenticationForm()
    context['login_form'] = form
return render(request, "account/login.html", context)

def logout_view（请求）： 注销（请求） 返回重定向（“家”）

forms.py

从 django 导入表单

从 django.contrib.auth 导入 get_user_model

从 .models 导入帐户

从 django.contrib.auth 导入验证

用户 = get_user_model()

类RegistrationForm(forms.ModelForm)：

full_name   = forms.CharField()
email       = forms.EmailField(max_length=60, help_text='Required. Add a valid email address.')
password1   = forms.CharField(widget=forms.PasswordInput)
password2   = forms.CharField(widget=forms.PasswordInput, label='Confirm password')


class Meta:
    model = Account
    fields = (
        'email',
        'username',
        'full_name',
        'password1',
        'password2',
    )

def save(self, commit=True):
    user = super(RegistrationForm, self).save(commit=False)
    user.email = self.cleaned_data.get('email')
    user.username = self.cleaned_data.get('username')
    user.full_name = self.cleaned_data.get('full_name')
    if commit:
        user.save()
    return user

def clean_email(self):
    email = self.cleaned_data.get('email')
    qs = User.objects.filter(email=email)
    if qs.exists():
        raise forms.ValidationError(f"Email email is already taken")
    return email

def clean_username(self):
    username = self.cleaned_data.get('username')
    qs = User.objects.filter(username=username)
    if qs.exists():
        raise forms.ValidationError(f"Username username is already taken")
    return username

def clean(self):
    data = self.cleaned_data
    password1 = self.cleaned_data.get('password1')
    password2 = self.cleaned_data.get('password2')
    if password2 != password1:
        raise forms.ValidationError("Passwords must match")
    return data

类 AccountAuthenticationForm(forms.ModelForm)：

password = forms.CharField(label='Password', widget=forms.PasswordInput)

class Meta:
    model = Account
    fields = ('email', 'password')

def clean(self):
    if self.is_valid():
        email = self.cleaned_data.get('email')
        password = self.cleaned_data.get('password')
    if not authenticate(email=email, password=password):
        raise forms.ValidationError("Incorrect username or password")

【问题讨论】：

你能复制你看到的（整个）确切的错误吗？

@MilesDavis 我认为错误只是出现在 register.html 页面中，上面写着“此字段是必需的”

【参考方案1】：

问题的原因可能是username 字段和email 字段被使用了一个代替另一个。

上面提到的代码中的一个例子：

USERNAME_FIELD = "email"
REQUIRED_FIELDS = ["username", "full_name"]

可以通过验证和修复这些错误来解决问题，其中使用电子邮件字段代替用户名字段，反之亦然。

【参考方案2】：

您的字段 html id 和 name 很可能有错误，因此表单验证将其注册为空值