我正在尝试创建一个带有OAuth 2身份验证的API。我创建了名为Accounts的自定义用户模型。当我运行命令">py manage.py migrate"；它让我犯了以下错误。
E:Djangoapiapp>py manage.py migrate
Operations to perform:
Apply all migrations: account, admin, app_v2, auth, contenttypes, oauth2_provider, sessions, social_django
Running migrations:
Applying oauth2_provider.0001_initial...Traceback (most recent call last):
File "C:UsersHAMEED-PCAppDataLocalProgramsPythonPython39libsite-packagesdjangodbbackendsutils.py", line 84, in _execute
return self.cursor.execute(sql, params)
psycopg2.errors.UndefinedTable: relation "account_account" does not exist
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "E:Djangoapiappmanage.py", line 22, in <module>
main()
File "E:Djangoapiappmanage.py", line 18, in main
execute_from_command_line(sys.argv)
File "C:UsersHAMEED-PCAppDataLocalProgramsPythonPython39libsite-packagesdjangocoremanagement__init__.py", line 419, in execute_from_command_line
utility.execute()
File "C:UsersHAMEED-PCAppDataLocalProgramsPythonPython39libsite-packagesdjangocoremanagement__init__.py", line 413, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "C:UsersHAMEED-PCAppDataLocalProgramsPythonPython39libsite-packagesdjangocoremanagementbase.py", line 354, in run_from_argv
self.execute(*args, **cmd_options)
File "C:UsersHAMEED-PCAppDataLocalProgramsPythonPython39libsite-packagesdjangocoremanagementbase.py", line 398, in execute
output = self.handle(*args, **options)
File "C:UsersHAMEED-PCAppDataLocalProgramsPythonPython39libsite-packagesdjangocoremanagementbase.py", line 89, in wrapped
res = handle_func(*args, **kwargs)
File "C:UsersHAMEED-PCAppDataLocalProgramsPythonPython39libsite-packagesdjangocoremanagementcommandsmigrate.py", line 244, in handle
post_migrate_state = executor.migrate(
File "C:UsersHAMEED-PCAppDataLocalProgramsPythonPython39libsite-packagesdjangodbmigrationsexecutor.py", line 117, in migrate
state = self._migrate_all_forwards(state, plan, full_plan, fake=fake, fake_initial=fake_initial)
File "C:UsersHAMEED-PCAppDataLocalProgramsPythonPython39libsite-packagesdjangodbmigrationsexecutor.py", line 147, in _migrate_all_forwards
state = self.apply_migration(state, migration, fake=fake, fake_initial=fake_initial)
File "C:UsersHAMEED-PCAppDataLocalProgramsPythonPython39libsite-packagesdjangodbmigrationsexecutor.py", line 230, in apply_migration
migration_recorded = True
File "C:UsersHAMEED-PCAppDataLocalProgramsPythonPython39libsite-packagesdjangodbbackendsbaseschema.py", line 118, in __exit__
self.execute(sql)
File "C:UsersHAMEED-PCAppDataLocalProgramsPythonPython39libsite-packagesdjangodbbackendsbaseschema.py", line 145, in execute
cursor.execute(sql, params)
File "C:UsersHAMEED-PCAppDataLocalProgramsPythonPython39libsite-packagesdjangodbbackendsutils.py", line 98, in execute
return super().execute(sql, params)
File "C:UsersHAMEED-PCAppDataLocalProgramsPythonPython39libsite-packagesdjangodbbackendsutils.py", line 66, in execute
return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
File "C:UsersHAMEED-PCAppDataLocalProgramsPythonPython39libsite-packagesdjangodbbackendsutils.py", line 75, in _execute_with_wrappers
return executor(sql, params, many, context)
File "C:UsersHAMEED-PCAppDataLocalProgramsPythonPython39libsite-packagesdjangodbbackendsutils.py", line 84, in _execute
return self.cursor.execute(sql, params)
File "C:UsersHAMEED-PCAppDataLocalProgramsPythonPython39libsite-packagesdjangodbutils.py", line 90, in __exit__
raise dj_exc_value.with_traceback(traceback) from exc_value
File "C:UsersHAMEED-PCAppDataLocalProgramsPythonPython39libsite-packagesdjangodbbackendsutils.py", line 84, in _execute
return self.cursor.execute(sql, params)
django.db.utils.ProgrammingError: relation "account_account" does not exist
用于身份验证的程序包。
pip install django-oauth-toolkit djangorestframework
账户的Models.py
from django.db import models
from django.contrib.auth.models import AbstractBaseUser, BaseUserManager, PermissionsMixin
from django.conf import settings
from django.db.models.signals import post_save
from django.dispatch import receiver
from rest_framework.authtoken.models import Token
# These Class is used to create a normal user and a super user
class MyAccountManager(BaseUserManager):
# Function to create user
def create_user(self, email, username, password=None):
if not email:
raise ValueError("Users must have an email address. ")
if not username:
raise ValueError("Users must have a username. ")
user = self.model(
email=self.normalize_email(email),
username=username,
)
user.set_password(password)
user.save(using=self._db)
return user
# Function to create a Super User
# we are not mentioning password as None for super user
def create_superuser(self, email, username, password):
# call the function create user to create a super user
user = self.create_user(
email=self.normalize_email(email),
password=password,
username=username,
)
user.is_admin = True
user.is_staff = True
user.is_superuser = True
user.save(using=self._db)
return user
# represents the table Account in Postgress
class Account(AbstractBaseUser, PermissionsMixin):
password = models.CharField(max_length=128)
last_login = models.DateTimeField(verbose_name='last login', auto_now=True)
is_superuser = models.BooleanField(default=False)
username = models.CharField(max_length=150, unique=True)
first_name = models.CharField(max_length=150)
last_name = models.CharField(max_length=150)
email = models.CharField(verbose_name='email', max_length=254, unique=True)
is_admin = models.BooleanField(default=False)
is_staff = models.BooleanField(default=False)
is_active = models.BooleanField(default=True)
date_joined = models.DateTimeField(verbose_name='date joined', auto_now_add=True)
#unique field to identify our user model
USERNAME_FIELD = 'email'
REQUIRED_FIELDS = ['username']
# this helps the model to understand that we are using MyAccountManager to create accounts(Users)
objects = MyAccountManager()
def __str__(self):
return self.email
# For checking permissions. To keep it simple all admin have ALL permissions
def has_perm(self, perm, obj=None):
return self.is_admin
# Does this user have permission to view this app? (ALWAYS YES FOR SIMPLICITY)
def has_module_perms(self, app_label):
return True
我还在Settings.py 中添加了这几行
AUTH_USER_MODEL = "account.Account"
AUTHENTICATION_BACKENDS = [
'django.contrib.auth.backends.AllowAllUsersModelBackend',
'account.backends.CaseInsensitiveModelBackend'
]
我不知道它为什么会抛出这个错误。请帮帮我！！！
当你在数据库文件中放错地方时，或者你已经更改了数据库，也会发生这个错误，所以为了修复这个错误，你只需要转到你的根项目，然后从每个应用程序中删除pycache和migrations文件夹，并执行所有的迁移&显式迁移，例如"迁移"；python manage.py makemigrations应用程序名称"以及与迁移"；python manage.py迁移应用程序名称"；只要重新启动服务器，你的错误就会消失：(