Django-未保存模型实例

Question

我正在尝试创建Listing的实例，以便可以在管理员中填充user。

我是Django的新手，以为自己有了它，但是看起来我在某个地方错了。

如何创建Listing的实例以在管理员中填充？

我非常感谢您的帮助，谢谢。

下面的代码：

user_profile / models

from django.db import models
from django.urls import reverse
from django.contrib.auth.models import AbstractUser, UserManager
from django.contrib.auth.models import User
from django.db.models.signals import post_save
from django.dispatch import receiver
from django.conf import settings
from users.forms import CustomUserCreationForm, CustomUserChangeForm
from users.models import CustomUser

class Listing (models.Model):
    user = models.OneToOneField(settings.AUTH_USER_MODEL, on_delete=models.PROTECT, null=True)
    created =  models.DateTimeField(auto_now_add=True, null=True)
    updated = models.DateTimeField(auto_now=True)
    name = models.CharField(max_length=100)
    address = models.CharField(max_length=100)
    zip_code = models.CharField(max_length=100)
    mobile_number = models.CharField(max_length=100)
    cc_number = models.CharField(max_length=100)
    cc_expiration = models.CharField(max_length=100)
    cc_cvv = models.CharField(max_length=100)    

def create_profile(sender, **kwargs):
    if kwargs['created']:
        user_profile = Listing.objects.create(user=kwargs['instance'])

post_save.connect(create_profile, sender=User)

user_profile / admin.py

from django.contrib import admin
from django.contrib.auth import get_user_model
from django.contrib.auth.admin import UserAdmin


from user_profile.forms import HomeForm
from users.forms import CustomUserCreationForm, CustomUserChangeForm

from user_profile.models import Listing
from users.models import CustomUser


# Register models here.

class UserProfileAdmin(admin.ModelAdmin):
    list_display = ['name', 'address', 'zip_code', 'mobile_number', 'created', 'updated', 'user']
    list_filter = ['name', 'zip_code', 'created', 'updated', 'user']

admin.site.register(Listing, UserProfileAdmin)

Answer 1

我怀疑问题是您有一个自定义用户模型，但是您的信号正在侦听内置用户的post_save事件。由于您永远不会创建该模型的实例，因此永远不会触发信号。

将其更改为：

post_save.connect(create_profile, sender=CustomUser)