'ProfileForm' object 沒有屬性 'user'

Question

我正在學習 Django。 我有一個 model 配置文件：

class Profile(models.Model):
    user = models.OneToOneField(User, on_delete=models.CASCADE)
    city = models.CharField(max_length=60)
    country = models.CharField(max_length=60)
    skillstolearn = models.TextField()
    skillstoteach = models.TextField()
    description = models.TextField()

    def __str__(self):
        return self.user.username

和一個表格 ProfileForm：

class ProfileForm(ModelForm):
    class Meta:
        model = Profile
        fields = ['user', 'city', 'country', 'skillstolearn', 'skillstoteach', 'description']

我正在嘗試使用下面的視圖...

def profileupdate(request):
    profile = ProfileForm(request.POST)
    current = Profile.objects.get(user=profile.user.username)
    print(current)
    if profile.is_valid():
        print('is valid')
    else:
        print('is not valid')
    return redirect('/thecode/userpage')

...確定用戶是否已經存在，因為我想使用相同的表單來創建和更新。

我收到錯誤消息“'ProfileForm' object 沒有屬性'user'”。

如何獲得已在表單中發送的用戶的結果？

更新：以下是我收到的錯誤消息

Internal Server Error: /thecode/profileupdate/
Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/django/core/handlers/exception.py", line 47, in inner
    response = get_response(request)
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/django/core/handlers/base.py", line 181, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/Users/phershbe/Desktop/socialnetwork/theproject/thecode/views.py", line 45, in profileupdate
    current = Profile.objects.get(user_id=profile.user.id)
AttributeError: 'ProfileForm' object has no attribute 'user'

Answer 1

當您從配置文件的表中獲取current = Profile.objects.get(user=profile.user.username)時，您正在將user （用戶的實例）與username （字符串）進行比較。 所以你需要選擇一個需要的變體來做這件事：

1)

current = Profile.objects.get(user=profile.user)

current = Profile.objects.get(user__username=profile.user.username)

current = Profile.objects.get(user_id=profile.user.id)