Question

I’m a newbie for django.

I’m trying to run a sample according to a book about django.

I’ve added “class Admin” to my model classes, however, in the django admin interface, I can only see the “Users”, “Groups” and “Sites”, none of my model classes appear.

There is no error or warning information, so I don’t know what happened and what shall I do next.

Any help?

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

You need to do three things to be able to edit your models via admin site:

1. Create file ‘admin.py’ in your app directory with code (look 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. In your urls.py add the following (look 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. Be sure, that your settings.py satisfy following (look 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
   )