Django中用于创建注册页面的“没有这样的表”错误是啥？

Posted 2023-03-14

【中文标题】Django中用于创建注册页面的“没有这样的表”错误是啥？

【英文标题】：What is a 'no such table' error in Django for creating a register page?Django中用于创建注册页面的“没有这样的表”错误是什么？

【发布时间】：2021-08-24 00:24:38

【问题描述】：

我正在尝试创建一个注册页面。我收到了这个错误。

views.py：

def login_view(request):
    if request.method == "POST":

        # Attempt to sign user in
        username = request.POST["username"]
        password = request.POST["password"]
        user = authenticate(request, username=username, password=password)

        # Check if authentication successful
        if user is not None:
            login(request, user)
            return HttpResponseRedirect(reverse("index"))
        else:
            return render(request, "auctions/login.html", 
                "message": "Invalid username and/or password."
            )
    else:
        return render(request, "auctions/login.html")


def logout_view(request):
    logout(request)
    return HttpResponseRedirect(reverse("index"))


def register(request):
    if request.method == "POST":
        username = request.POST["username"]
        email = request.POST["email"]

        # Ensure password matches confirmation
        password = request.POST["password"]
        confirmation = request.POST["confirmation"]
        if password != confirmation:
            return render(request, "auctions/register.html", 
                "message": "Passwords must match."
            )

        # Attempt to create new user
        try:
            print("momooo!")
            user = User.objects.create_user(username, email, password)
            print(("more mooomoo"))
            user.save()
        except IntegrityError:
            return render(request, "auctions/register.html", 
                "message": "Username already taken."
            )
        login(request, user)
        return HttpResponseRedirect(reverse("index"))
    else:
        return render(request, "auctions/register.html")

register.html 页面：

% extends "auctions/layout.html" %

% block body %

    <h2>Register</h2>

    % if message %
        <div> message </div>
    % endif %

    <form action="% url 'register' %" method="post">
        % csrf_token %
        <div class="form-group">
            <input class="form-control" autofocus type="text" name="username" placeholder="Username">
        </div>
        <div class="form-group">
            <input class="form-control" type="email" name="email" placeholder="Email Address">
        </div>
        <div class="form-group">
            <input class="form-control" type="password" name="password" placeholder="Password">
        </div>
        <div class="form-group">
            <input class="form-control" type="password" name="confirmation" placeholder="Confirm Password">
        </div>
        <input class="btn btn-primary" type="submit" value="Register">
    </form>

    Already have an account? <a href="% url 'login' %">Log In here.</a>

% endblock %

models.py 内部：

from django.contrib.auth.models import AbstractUser
from django.db import models


class User(AbstractUser):
    # pass
    def create_user(username, email, password):
        print("hello!!!!")

我在尝试注册新用户时收到此错误：

Environment:


Request Method: POST
Request URL: http://127.0.0.1:8000/register

Django Version: 3.2.4
Python Version: 3.9.5
Installed Applications:
['auctions',
 'django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware']



Traceback (most recent call last):
  File "C:\Users\Kaij\AppData\Local\Programs\Python\Python39\lib\site-packages\django\db\backends\utils.py", line 84, in _execute
    return self.cursor.execute(sql, params)
  File "C:\Users\Kaij\AppData\Local\Programs\Python\Python39\lib\site-packages\django\db\backends\sqlite3\base.py", line 423, in execute
    return Database.Cursor.execute(self, query, params)

The above exception (no such table: auctions_user) was the direct cause of the following exception:
  File "C:\Users\Kaij\AppData\Local\Programs\Python\Python39\lib\site-packages\django\core\handlers\exception.py", line 47, in inner
    response = get_response(request)
  File "C:\Users\Kaij\AppData\Local\Programs\Python\Python39\lib\site-packages\django\core\handlers\base.py", line 181, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "C:\Users\Kaij\Documents\coding\cs50\commerce\auctions\views.py", line 55, in register
    user = User.objects.create_user(username, email, password)
  File "C:\Users\Kaij\AppData\Local\Programs\Python\Python39\lib\site-packages\django\contrib\auth\models.py", line 152, in create_user
    return self._create_user(username, email, password, **extra_fields)
  File "C:\Users\Kaij\AppData\Local\Programs\Python\Python39\lib\site-packages\django\contrib\auth\models.py", line 146, in _create_user
    user.save(using=self._db)
  File "C:\Users\Kaij\AppData\Local\Programs\Python\Python39\lib\site-packages\django\contrib\auth\base_user.py", line 67, in save
    super().save(*args, **kwargs)
  File "C:\Users\Kaij\AppData\Local\Programs\Python\Python39\lib\site-packages\django\db\models\base.py", line 726, in save
    self.save_base(using=using, force_insert=force_insert,
  File "C:\Users\Kaij\AppData\Local\Programs\Python\Python39\lib\site-packages\django\db\models\base.py", line 763, in save_base
    updated = self._save_table(
  File "C:\Users\Kaij\AppData\Local\Programs\Python\Python39\lib\site-packages\django\db\models\base.py", line 868, in _save_table
    results = self._do_insert(cls._base_manager, using, fields, returning_fields, raw)
  File "C:\Users\Kaij\AppData\Local\Programs\Python\Python39\lib\site-packages\django\db\models\base.py", line 906, in _do_insert
    return manager._insert(
  File "C:\Users\Kaij\AppData\Local\Programs\Python\Python39\lib\site-packages\django\db\models\manager.py", line 85, in manager_method
    return getattr(self.get_queryset(), name)(*args, **kwargs)
  File "C:\Users\Kaij\AppData\Local\Programs\Python\Python39\lib\site-packages\django\db\models\query.py", line 1270, in _insert
    return query.get_compiler(using=using).execute_sql(returning_fields)
  File "C:\Users\Kaij\AppData\Local\Programs\Python\Python39\lib\site-packages\django\db\models\sql\compiler.py", line 1416, in execute_sql
    cursor.execute(sql, params)
  File "C:\Users\Kaij\AppData\Local\Programs\Python\Python39\lib\site-packages\django\db\backends\utils.py", line 98, in execute
    return super().execute(sql, params)
  File "C:\Users\Kaij\AppData\Local\Programs\Python\Python39\lib\site-packages\django\db\backends\utils.py", line 66, in execute
    return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
  File "C:\Users\Kaij\AppData\Local\Programs\Python\Python39\lib\site-packages\django\db\backends\utils.py", line 75, in _execute_with_wrappers
    return executor(sql, params, many, context)
  File "C:\Users\Kaij\AppData\Local\Programs\Python\Python39\lib\site-packages\django\db\backends\utils.py", line 84, in _execute
    return self.cursor.execute(sql, params)
  File "C:\Users\Kaij\AppData\Local\Programs\Python\Python39\lib\site-packages\django\db\utils.py", line 90, in __exit__
    raise dj_exc_value.with_traceback(traceback) from exc_value
  File "C:\Users\Kaij\AppData\Local\Programs\Python\Python39\lib\site-packages\django\db\backends\utils.py", line 84, in _execute
    return self.cursor.execute(sql, params)
  File "C:\Users\Kaij\AppData\Local\Programs\Python\Python39\lib\site-packages\django\db\backends\sqlite3\base.py", line 423, in execute
    return Database.Cursor.execute(self, query, params)

Exception Type: OperationalError at /register
Exception Value: no such table: auctions_user

我对错误“没有这样的表：auctions_user”感到困惑。我还没有创建那个表，所以不确定他们为什么需要它或在哪里引用它。

【参考方案1】：

运行python manage.py makemigration然后python manage.py migrate创建用户表

【讨论】：

非常感谢@mkalioby。我实际上是这样做的，但是当我在 register.html 页面上注册时它似乎并没有改变问题我得到了同样的错误

你在设置文件中设置了AUTH_USER_MODEL吗？

我现在不在电脑旁，但我非常感谢这个建议。我回来时要检查一下。再次感谢

我设置了AUTH_USER_MODEL = 'auctions.User'。它仍然给我这个问题

设置后makemigrations并迁移

【参考方案2】：

我发现有效的方法是运行

python manage.py makemigrations YOURAPPNAME

特定于我的应用 然后我也不得不

注释掉：

INSTALLED_APPS = [
...
#'django.contrib.admin',
...
]

并且还注释掉：

# path('admin/', admin.site.urls) in urls.py

那我终于可以跑了

python manage.py migrate

然后将它们添加回来[删除##以删除评论]

之后表格错误消失了。

这些以前的帖子有所帮助：

django-OperationalError at /register/ no such table: auth_user django.db.migrations.exceptions.InconsistentMigrationHistory