1048, "列 'user_id' 不能为空"

Posted 2023-02-24

【中文标题】1048, "列 \'user_id\' 不能为空"

【英文标题】：1048, "Column 'user_id' cannot be null"1048, "列 'user_id' 不能为空"

【发布时间】：2020-06-12 15:53:01

【问题描述】：

models.py

class Profile(models.Model):
    user = models.OneToOneField(User, on_delete=models.CASCADE)
    fullname = models.CharField(max_length=30,blank=False,null=False)
    bio = models.TextField(max_length=500, blank=True)
    location = models.CharField(max_length=30, blank=True)
    birth_date = models.DateField(null=True, blank=True)
    gender = models.CharField(max_length=10,blank=True)

    def __str__(self):
        return self.fullname

forms.py

class UserForm(forms.ModelForm):
    username = forms.CharField(widget=forms.TextInput(attrs='class':'validate','placeholder': 'Enter Username'))
    password= forms.CharField(widget=forms.PasswordInput(attrs='placeholder':'Enter Password'))
    email=forms.EmailField(widget=forms.TextInput(attrs='placeholder':'Enter Email'))
    password2 = None

    class Meta:
        model=User
        fields=['username','password','email']


class ProfileForm(forms.ModelForm):
    fullname = forms.CharField(widget=forms.TextInput(attrs='placeholder':'Enter fullname'))
    class Meta:
        model=Profile
        fields=['fullname']

views.py

def register(request):
    if request.method =='POST':
        form = UserForm(request.POST)
        profile_form = ProfileForm(request.POST)
        if form.is_valid() and profile_form.is_valid():
            variable=form.save(commit=False)
            variable.password = pbkdf2_sha256.encrypt(request.POST['password'],rounds=12000,salt_size=32)
            variable.save()
            profile=profile_form.save(commit=False)
            profile.username=variable.username
            profile.save()
            username = form.cleaned_data.get('username')
            messages.success(request,f'account created for  username ')
            return redirect('login')
    else:
        form = UserForm()
        profile_form = ProfileForm()
    context='form':form , 'profile_form':profile_form
    return render(request, 'users/register.html',context)

我创建了两个表 auth_user（默认）和 users_profile。当我注册时，用户默认数据进入 auth 表，但全名未插入 user_profile。

【参考方案1】：

您没有将profile.user 链接到User 对象。你可以这样做：

def register(request):
    if request.method =='POST':
        form = UserForm(request.POST)
        profile_form = ProfileForm(request.POST)
        if form.is_valid() and profile_form.is_valid():
            variable=form.save(commit=False)
            variable.set_password(variable.password)
            variable.save()
            profile=profile_form.save(commit=False)
            profile.user = variable
            profile.save()
            username = form.cleaned_data.get('username')
            messages.success(request,f'account created for  username ')
            return redirect('login')
    # …

为了设置密码，你最好使用Django的.set_password(..) method [Django-doc]。

【讨论】：

谢谢！但是我现在无法登录（它说用户名和密码不正确。）我使用的是默认登录 django

@RamPatil：您可能不应该自己加密密码。您可以使用.set_password 方法。

(1062, "Duplicate entry '3' for key 2") 全名未插入其他数据库