ImportError:无法从'django.contrib.auth.models‘导入名称'get_user_model’

Question

我在使用Djangos默认用户from django.contrib.auth.models时遇到了问题，但是我试图在我的自定义用户模型中使用它，使用from django.contrib.auth.models import AbstractUser。

在这些条款之后：

• Django医生
• 5~6成熟
• SimpleIsBetter 1
• SimpleIsBetter 2

下面是我的用户模型：

from django.db import models
from django.contrib.auth.models import AbstractUser
# from django.conf import settings
from django_countries.fields import CountryField
# https://github.com/SmileyChris/django-countries


class User(AbstractUser):
    """auth/login-related fields"""
    is_a = models.BooleanField('a status', default=False)
    is_o = models.BooleanField('o status', default=False)

    def __str__(self):
        return "{} {}".format(self.first_name, self.last_name)

这是我的侧写模型：

from django.db import models
from django_countries.fields import CountryField # https://github.com/SmileyChris/django-countries
from django.contrib.auth.models import get_user_model
User = get_user_model()
# https://medium.com/swlh/best-practices-for-starting-a-django-project-with-the-right-user-model-290a09452b88

from django.db.models.signals import post_save 
from django.dispatch import receiver



class Profile(models.Model):
    """non-auth-related/cosmetic fields"""
    user = models.OneToOneField(User, on_delete=models.CASCADE)
    birth_date = models.DateTimeField(auto_now=False, auto_now_add=False, null=True)
    nationality = CountryField(null=True)

    GENDER_CHOICES = (
        ('M', 'Male'),
        ('F', 'Female'),
    )
    gender = models.CharField(max_length=1, choices=GENDER_CHOICES, null=True)

    def __str__(self):
        return f'{self.user.username} Profile'

"""receivers to add a Profile for newly created users"""
@receiver(post_save, sender=User) 
def create_user_profile(sender, instance, created, **kwargs):
     if created:
         Profile.objects.create(user=instance)
@receiver(post_save, sender=User) 
def save_user_profile(sender, instance, **kwargs):
     instance.profile.save()

在我的settings.py中，我添加了AUTH_USER_MODEL = 'mysite.User'

settings.py

AUTH_USER_MODEL = 'mysite.User'

INSTALLED_APPS = [
    'mysite.apps.MysiteConfig',
    'django_countries',
    'djmoney',
    'rest_framework',
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
]

但是，当我试图迁移时，我得到了一个错误：

ImportError: cannot import name 'get_user_model' from 'django.contrib.auth.models'

我一直在寻找答案，但我只谈到了Django需要1.5或更高版本的话题，我使用Django 3.0.2

我发现的典型帖子是：

• StackOverflow 1
• Reddit
• StackOverflow 2
• StackOverflow 3

有人知道我错过了什么吗？还是做错事？

谢谢!

更新1：

下面是我的用户视图，我的用户序列化器：

views_user.py

from rest_framework import generics
from django.contrib.auth import get_user_model
from ..models.model_user import *
from ..serializers.serializers_user import *


class UserIndex(generics.ListAPIView):
    """List all users, or create a new user."""

    queryset = User.objects.all().order_by('id')
    serializer_class = UserIndexSerializer

class UserCreate(generics.CreateAPIView):
    """List all art pieces, or create a new art piece."""

    queryset = User.objects.all()
    serializer_class = UserCreateSerializer

class UserDetails(generics.RetrieveUpdateDestroyAPIView):
    """Retrieve, update or delete a user instance."""

    queryset = User.objects.all()
    serializer_class = UserDetailsSerializer

serializers_user.py

from rest_framework import serializers
from django.contrib.auth import get_user_model
from ..models.model_user import *


class UserIndexSerializer(serializers.ModelSerializer):
    class Meta:
        model = User
        fields = [
            'id',
            'first_name',
            'last_name',
            'email',
            'age',
            # 'nationality',
            'gender',
            'profession'
        ]

class UserCreateSerializer(serializers.ModelSerializer):

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

class UserDetailsSerializer(serializers.ModelSerializer):
    class Meta:
        model = User
        fields = '__all__'

Answer 1

您在配置文件模型from django.contrib.auth.models import get_user_model中的导入是错误的。

您应该做from django.contrib.auth import get_user_model，注意在最后没有.models。

根据Django文档中的文档和示例：模型