如何从视图django填充字段？唯一约束失败：auth_user.username

Question

我正在尝试在Django中的模板表单上填充字段。我试图在视图上做到这一点，并在表单模板上进行价值，但没有运气。这是我的工作，

结果是从资源模型中填充用户名和电子邮件字段，但是我得到唯一的约束失败：auth_user.username 错误。

谢谢

forms.py

class AdminRegistrationForm(UserCreationForm):
    is_superuser = forms.BooleanField(),
    password1 = forms.CharField(
        label="Password",
        widget=forms.PasswordInput)
    password2 = forms.CharField(
        label="Password Confirmation",
        widget=forms.PasswordInput)

    class Meta:
        model = User
        fields = ['password1',  'password2']

    def clean_password2(self):
        password1 = self.cleaned_data.get('password1')
        password2 = self.cleaned_data.get('password2')

        if not password1 or not password2:
            raise ValidationError("Please confirm your password")

        if password1 != password2:
            raise ValidationError("Passwords must match")

        return password2

view.py

def admin_registration(request, username):
    resources = Resource.objects.get(username=username)

    if request.user.is_authenticated:
        return redirect(reverse('index'))

    if request.method == "POST":
        resources = Resource.objects.get(username=username)
        admin_registration_form = AdminRegistrationForm(request.POST)

        if admin_registration_form.is_valid():
            obj = admin_registration_form.save(commit=False)
            obj.is_superuser = True
            obj.save()

            user = auth.authenticate(username=[resources.username],
                                     password=request.POST['password1'])
            if user:
                auth.login(user=user, request=request)
                messages.success(request, "You have successfully registered")
                return redirect(reverse('index'))
            else:
                messages.error(request, "Unable to register your account at this time")
    else:
        admin_registration_form = AdminRegistrationForm()
    return render(request, 'registration/registration.html', {
        "registration_form": admin_registration_form, 'email': resources.email })

models.py

class Resource(models.Model):
    ROLE = [
        ('Analyst', "Analyst"),
        ('Team Manager', "Team Manager"),
        ('Quality Auditor', "Quality Auditor"),
        ('Senior Analyst', "Senior Analyst"),
        ('', "")
    ]
    username = models.CharField(max_length=254, default='')
    status = models.IntegerField(default=1)
    email = models.EmailField(max_length=254, null=False, default='')
    email_sent = models.IntegerField(default=0)
    name = models.CharField(max_length=254, default='')
    surname = models.CharField(max_length=254, default='')
    role = models.CharField(max_length=30, choices=ROLE, default='')
    start_date = models.DateField()
    end_date = models.DateField(null=True)

    USERNAME_FIELD = "eid"

    def __str__(self):
        return self.email

Answer 1

在评论中，您说您使用Django提供的通用用户。那么您的错误是您没有在表单中指定用户名字段。如果您尚未指定其他username_field，但在用户模型中，则需要此字段。而且您还没有，因为您只是导入它。在这种情况下，每个用户用adminegrastrationform创建的没有用户名或实际具有 - 无。因此，只要可以创建第一个用户，其次就会具有相同的（none）用户名，并且它不会是唯一的。

要解决该问题，只需添加用户名字段。示例：

class AdminRegistrationForm(UserCreationForm):
    username = forms.CharField('username', max_length=150)
    ...

PS。 username_field =“ eid”什么都不做，因为资源不是用户模型。只需创建自己的customuser高度由django推荐本身:)