TypeError：get_session_auth_hash（）缺少1個必需的位置參數：'self'

Question

我正在學習試圖實現自定義用戶模型的django，但每次嘗試使用它登錄到/ admin時，我都會收到兩個長的回溯列表，在

TypeError: get_session_auth_hash() missing 1 required positional argument: 'self' 

，沒有在追蹤單個文件或電話的是我的文件

一個以防萬一，這裏是我的模型和後端文件

models.py

from django.db import models 
from django.contrib.auth.models import BaseUserManager, AbstractBaseUser 

class UserManager(BaseUserManager): 
    """ 
    Custom user manager 
    """ 
    def create_user(self, username, password): 
     if not username or not password: 
      raise ValueError("We need username and password here...") 
     user = self.model(username=username) 
     user.set_password(password) 
     user.save() 
     return user 
    def create_superuser(self, username, password): 
     if not username or not password: 
      raise ValueError("We need username and password here...") 
     user = self.create_user(username=username,password=password) 
     user.set_password(password) 
     user.is_admin = True 
     user.is_staff = True 
     user.save() 
     return user 

class User(AbstractBaseUser): 
    """ 
    Custom user class 
    """ 
    username = models.CharField(max_length=64, unique=True, db_index=True) 
    joined = models.DateTimeField(auto_now_add=True, auto_now=False) 
    is_active = models.BooleanField(default=True) 
    is_staff = models.BooleanField(default=False) 
    is_admin = models.BooleanField(default=False) 

    objects = UserManager() 

    USERNAME_FIELD = 'username' 

    def __str__(self): 
     return self.username 

Backends.py

from django.contrib.auth.models import check_password 
from accounts.models import User 

class AuthenticationBackend(object): 
    """ 
    Backend for authentication 
    """ 
    def authenticate(self, username=None, password=None): 
     try: 
      user = User.objects.get(username=username) 
      if user.check_password(password): 
       return user 
     except User.DoesNotExist: 
       return None 

    def get_user(self, user_id): 
     try: 
      user = User.objects.get(pk=user_id) 
      if user.is_active: 
       return User 
      return None 
     except User.DoesNotExist: 
      return None 

請幫助我失去了

Answer 1

在AuthenticationBackend.get_user，你有這樣的：

 if user.is_active: 
      return User 

實際上返回的User類，而不是你的user實例。調用此方法的代碼稍後會嘗試對您返回的內容調用get_session_auth_hash()，因此您的錯誤。

你想：

 if user.is_active: 
      return user