创建模型管理员

我的博客应用的models.py是这样的 -创建模型管理员

from django.db import models 
from django.utils import timezone 
from django.contrib.auth.models import User 

class PublishedManager(models.Manager): 
    def get_queryset(self): 
     return super(PublishedManager,  
        self).get_queryset().filter(status='published') 

class Post(models.Model): 
    STATUS_CHOICES = (
     ('draft', 'Draft'), 
     ('published', 'Published'), 
    ) 
    title = models.CharField(max_length=250) 
    slug = models.SlugField(max_length=250, unique_for_date='publish') 
    author = models.ForeignKey(User, related_name='blog_posts') 
    body = models.TextField() 
    publish = models.DateTimeField(default=timezone.now) 
    created = models.DateTimeField(auto_now_add=True) 
    updated = models.DateTimeField(auto_now=True) 
    status = models.CharField(max_length=10, choices= STATUS_CHOICES,  
       default='draft') 

    objects = models.Manager() 
    published = PublishedManager() 


    class Meta: 
    ordering = ('-publish',) 

    def __str__(self): 
    return self.title

，当我在shell中运行Post.published.filter(title__startswith='Who')

它给了我充分壳的错误这样的 -

Traceback (most recent call last): 
File "/usr/local/lib/python3.4/dist-packages/django/core/management  
/commands/shell.py", line 77, in handle_noargs 
self.run_shell(shell=interface) 
File "/usr/local/lib/python3.4/dist-packages/django/core/management  
/commands/shell.py", line 65, in run_shell 
raise ImportError 
ImportError 

During handling of the above exception, another exception occurred: 

Traceback (most recent call last): 
File "/usr/lib/python3.4/code.py", line 90, in runcode 
exec(code, self.locals) 
File "<console>", line 1, in <module> 
AttributeError: type object 'Post' has no attribute 'published'

与此混淆。如果还有其他方法，请帮助我。给予bith ImportError以及AttributeError 我是否需要在shell中导入更多内容。已经导入

from django.contrib.auth.models import User 
from blog.models import Post

在我的壳

来源

2016-01-14 Fahad Mohd Shahid

你确定你的shell在添加管理器之前没有启动？即当你重新打开你的shell时问题是否会持续存在？ – SaeX

另外，请注意'class Meta'和'def __str__'的缩进。 – SaeX

谢谢，忘了重启shell。 –

代码看起来不错，所以有可能你添加经理之前，你的外壳没有启动。重新启动外壳，然后再试一次。

来源

2016-01-14 10:09:39 SaeX

创建模型管理员

回答

相关问题