Django:InteractiveConsole中未定义名称“Post”

我对Django很陌生,正试图在此基础上开发一个博客。

在 python manage.py makemigrations 和 python manage.py migrate 工作顺利,我进入InteractiveConsole执行 Post.objects.all() 出现了一个名称错误。

>>> Post.objects.all()
Traceback (most recent call last):
File "<console>", line 1, in <module>
NameError: name 'Post' is not defined

此外,在运行localhost:8000时,服务器还提供了另一个名称错误。

NameError at /
name 'Post' is not defined
Request Method: GET
Request URL:    http://localhost:8000/
Django Version: 2.0
Exception Type: NameError
Exception Value:    
name 'Post' is not defined
Exception Location: D:\experiment\blogproject\blog\views.py in index, line 6
Python Executable:  d:\experiment\blogproject_env\Scripts\python.exe
Python Version: 3.6.3
Python Path:    
['D:\\experiment\\blogproject',
'd:\\experiment\\blogproject_env\\Scripts\\python36.zip',
'd:\\experiment\\blogproject_env\\DLLs',
'd:\\experiment\\blogproject_env\\lib',
'd:\\experiment\\blogproject_env\\Scripts',
'd:\\professional soft\\python3.6.3\\Lib',
'd:\\professional soft\\python3.6.3\\DLLs',
'd:\\experiment\\blogproject_env',
'd:\\experiment\\blogproject_env\\lib\\site-packages']
Server time:    星期五, 22 十二月 2017 16:08:10 +0800

以下是我的观点。py。

from django.shortcuts import render
from django.http import HttpResponse


def index(request):
    post_list = Post.objects.all().order_by('-created_time')
    return render(request, 'blog/index.html', context={'post_list': post_list})

在这种情况下,模型中有邮政编码。py。

班级职务(型号、型号): 标题=型号。CharField(最大长度=70)

body = models.TextField()

created_time = models.DateTimeField()
modified_time = models.DateTimeField()

excerpt = models.CharField(max_length=200, blank=True)

category = models.ForeignKey(Category, on_delete=models.CASCADE)
tags = models.ManyToManyField(Tag, blank=True)

author = models.ForeignKey(User, on_delete=models.CASCADE)

def __str__(self):
    return self.title

非常感谢你!