我下面从Obeythetestinggoat.com(Win7的,Django的1.11,Python的3.6.1)的教程,并有一些问题,当我尝试手动访问本地网站。当我在Chrome浏览器窗口中运行python manage.py runserver
开放localhost:8000
,我得到以下错误:
django.db.utils.OperationalError: no such table: accounts_user
在浏览器窗口的输出说,有一个Error during template rendering
这里是模板它试图呈现的片段:
<div class="container">
<nav class="navbar navbar-default" role="navigation">
<div class="container-fluid">
<a class="navbar-brand" href="/">Superlists</a>
{% if user.email %}
<ul class="nav navbar-nav navbar-right">
<li class="navbar-text">Logged in as {{ user.email }}</li>
<li><a href="#">Log out</a></li>
</ul>
{% else %}
<form class="navbar-form navbar-right"
method="POST"
action="{% url 'send_login_email' %}">
<span>Enter email to log in:</span>
<input class="form-control" name="email" type="text"/>
{% csrf_token %}
</form>
{% endif %}
</div>
</nav>
{% if messages %}
<div class="row">
<div class="col-md-8">
{% for message in messages %}
{% if message.level_tag == 'success' %}
<div class="alert alert-success">{{ message }}</div>
{% else %}
<div class="alert alert-warning">{{ message }}</div>
{% endif %}
{% endfor %}
</div>
</div>
{% endif %}
</div>
我相信这个问题是来自{% user.email %}
因为这些特定的错误没有来,直到我加入他们到模板。虽然,几件事情看起来很奇怪这一点:
{% messages %}
任何问题。对不起,我不知道,这些被称为{% things %}
。makemigrations
和migrate
没有帮助。这里是views.py
应用的accounts
:
from django.shortcuts import redirect
from django.contrib import auth, messages
from django.core.mail import send_mail
from django.core.urlresolvers import reverse
from accounts.models import Token
def send_login_email(request):
email = request.POST['email']
token = Token.objects.create(email=email)
url = request.build_absolute_uri(
reverse('login') + '?token=' + str(token.uid)
)
message_body = f'Use this link to log in:\n\n{url}'
send_mail(
'your login link for Superlists',
message_body,
'noreply@superlists',
[email]
)
messages.success(
request,
"Check your email, we've sent you a link you can use to log in.")
return redirect('/')
def login(request):
user = auth.authenticate(uid=request.GET.get('token'))
if user:
auth.login(request, user)
return redirect('/')
这里是models.py
应用的accounts
:
from django.contrib import auth
from django.db import models
import uuid
auth.signals.user_logged_in.disconnect(auth.models.update_last_login)
class User(models.Model):
email = models.EmailField(primary_key=True)
REQUIRED_FIELDS = []
USERNAME_FIELD = 'email'
is_anonymous = False
is_authenticated = True
class Token(models.Model):
email = models.EmailField()
uid = models.CharField(default=uuid.uuid4, max_length=40)
你有没有跑通过蟒控制台makemigration和迁移命令?我相信你的模型所做的更改不会填充到数据库呢。
$ python manage.py makemigrations your_app_label
然后运行
$ python manage.py migrate
你可以在这里阅读更多https://docs.djangoproject.com/en/1.11/topics/migrations/
我在与同书同款同一个问题。虽然错误在Chrome登录前弹出,它会在登录后,每个浏览器弹出。这是一个数据库的问题,只有当你手动运行服务器弹出。
要解决,使用方法:
python manage.py makemigrations
python manage.py migrate
如果你有migrate
任何错误,消除你的测试数据库,然后再次运行迁移:
rm db.sqlite3
python manage.py migrate --noinput