python - 为什么没有出现 Django 管理界面？

Question

我是 django 的新手。

我正在尝试根据一本关于​​ Django 的书来运行示例。

我已经在我的模型类中添加了“class Admin”，但是，在 django 管理界面中，我只能看到“Users”、“Groups”和“Sites”，我的模型类都没有出现。

没有错误和警告信息，所以我不知道发生了什么，接下来该怎么办。

有什么帮助吗？

from django.db import models

# Create your models here.
class Publisher(models.Model):
    name = models.CharField(max_length=30)
    address=models.CharField(max_length=50)
    city=models.CharField(max_length=60)
    state_province=models.CharField(max_length=30)
    country=models.CharField(max_length=50)
    website=models.URLField()

    def __str__(self):
        return self.name

    class Admin:
        pass

class Author(models.Model):
    salutation=models.CharField(max_length=10)
    first_name = models.CharField(max_length=30)
    last_name = models.CharField(max_length=40)
    email=models.EmailField()
    headshot=models.ImageField(upload_to='/tmp')

    def __str__(self):
        return '%s %s' % (self.first_name, self.last_name)

    class Admin:
        pass

class Book(models.Model):
    title=models.CharField(max_length=10)
    authors=models.ManyToManyField(Author)
    publisher=models.ForeignKey(Publisher)
    publication_date = models.DateField()

    def __str__(self):
        return self.title

Answer 1

您需要做三件事才能通过管理站点编辑您的模型:

1. 使用代码在您的应用程序目录中创建文件“admin.py”(查看 https://docs.djangoproject.com/en/dev/ref/contrib/admin/#modeladmin-objects):

   from django.contrib import admin
   from your_app.models import Publisher, Author, Book
   
   admin.site.register(Author)
   admin.site.register(Publisher)
   admin.site.register(Book)
   

2. 在您的 urls.py 中添加以下内容(查看 https://docs.djangoproject.com/en/dev/ref/contrib/admin/#hooking-adminsite-instances-into-your-urlconf ):

   from django.conf.urls import patterns, url, include
   from django.contrib import admin
   
   admin.autodiscover()
   
   urlpatterns = patterns('',
       (r'^admin/', include(admin.site.urls)),
       # your urls goes here
   )
   

3. 确保您的 settings.py 满足以下要求(查看 https://docs.djangoproject.com/en/dev/ref/contrib/admin/#overview ):

   TEMPLATE_CONTEXT_PROCESSORS = (
       'django.contrib.messages.context_processors.messages',
       #other context processors
   )
   
   MIDDLEWARE_CLASSES = (
       'django.contrib.messages.middleware.MessageMiddleware',
       # other middleware
   )
   
   INSTALLED_APPS = (
       'django.contrib.admin',
       'django.contrib.auth',
       'django.contrib.contenttypes',
       'django.contrib.messages',
       'django.contrib.sessions',
       # other apps
   )