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所以我几乎完成了我的 Django 应用程序。但是每当我创建新用户时，他/她的个人资料不会自动创建，当我登录后打开个人资料时，我会收到此错误RelatedObjectDoesNotExist at /esacp/profile/ User has no profile

我的信号.py 如下：

from django.db.models.signals import post_save
from django.contrib.auth.models import User
from django.dispatch import receiver
from .models import Profile

@receiver(post_save, sender=User)
def create_profile(sender, instance, created, **kwargs):
    if created:
        Profile.objects.create(user=instance)

@receiver(post_save, sender=User)
def save_profile(sender, instance, **kwargs):
    instance.profile.save()

我的views.pyregister()和profile()如下：

from django.shortcuts import render, redirect
from django.contrib import messages
from .forms import UserRegisterForm, UserUpdateForm, ProfileUpdateForm
from django.contrib.auth.decorators import login_required
from django.contrib.auth.models import User

def register(request):
    if request.method == 'POST':
        form = UserRegisterForm(request.POST)
        if form.is_valid():
            form.save()
            username = form.cleaned_data.get('username')
            messages.success(request, f'Your Student Account has been created! You can log in ESACP now.')
            return redirect('login')
    else:
        form = UserRegisterForm()
    return render(request, 'users/register.html', {'form': form})

@login_required
def profile(request):
    if request.method == 'POST':
        u_form = UserUpdateForm(request.POST, instance=request.user)
        p_form = ProfileUpdateForm(request.POST,
            request.FILES,
            instance=request.user.profile)

        if u_form.is_valid() and p_form.is_valid():
            u_form.save()
            p_form.save()
            messages.success(request, f'Your Profile information has been updated.')
            return redirect('profile')

    else:
        u_form = UserUpdateForm(instance=request.user)
        p_form = ProfileUpdateForm(instance=request.user.profile)

    context = {
        'u_form': u_form,
        'p_form': p_form
    }

我的 forms.py 如下：

from django import forms
from django.contrib.auth.models import User
from django.contrib.auth.forms import UserCreationForm
from .models import Profile

class UserRegisterForm(UserCreationForm):
    email = forms.EmailField()
    first_name = forms.CharField(max_length=50)
    last_name = forms.CharField(max_length=50)

    class Meta:
        model = User
        fields = ['username', 'first_name', 'last_name', 'email', 'password1', 'password2']


class UserUpdateForm(forms.ModelForm):
    email = forms.EmailField()

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


class ProfileUpdateForm(forms.ModelForm):
    class Meta:
        model = Profile
        fields = ['image']

我的apps.py如下：

from django.apps import AppConfig


class UsersConfig(AppConfig):
    name = 'users'

    def ready(self):
        import users.signals

对我来说一切似乎都很好，有人知道出了什么问题或我错过了什么吗？

4

1 回答 1

2

您的接收器似乎无法正常工作检查您是否有，

INSTALLED_APPS = [
    ....
    users.apps.UsersConfig
]

如果 UsersConfig 不存在，它将不会被初始化并且 ready 不会被执行，导致无法导入您的接收器

或者您可以在用户应用程序中添加init .py

default_app_config = 'users.apps.UsersConfig'

为了确保接收器正常工作，只需在接收器函数中添加 print("I'm working") 并观察控制台

于 2020-05-17T16:35:44.280 回答