にModelAdminオブジェクトの作成時に '_meta'エラーがありません

Question

Djangoを初めて使用していて、モデルの管理インターフェイスをカスタマイズしようとしましたが、ModelAdminオブジェクトを追加しようとするとエラーが発生します。私のコードとエラーは以下に含まれています。私がRegisterステートメントからBlogAdminオブジェクトを取り出すと、エラーは発生せず、サイトは正常に読み込まれます。

ありがとうございました！

class Blog(models.Model): 
    name = models.CharField(max_length=300) 
    url = models.URLField() 

class BlogAdmin(admin.ModelAdmin): 
    list_display = ['name', 'url'] 
    search_fields = ["name"] 

admin.site.register([Blog,BlogAdmin]) 

私は次のエラーを取得する：あなたが書くとき

型オブジェクトのBlogAdmin 'には属性 '_meta'

Exception Location:  /Users/Bilal/Development/Django/ENV/traveller3/lib/python2.7/site-packages/django/contrib/admin/sites.py in register, line 80 
Python Executable: /Users/Bilal/Development/Django/ENV/traveller3/bin/python 
Python Version:  2.7.1 
Python Path:  

['', 
'/Applications/PyCharm.app/helpers/pydev', 
'/Users/Bilal/Development/Django/ENV/traveller3/lib/python2.7/site-packages/pip-1.0.2-py2.7.egg', 
'/Users/Bilal/Development/Django/ENV/traveller3/lib/python2.7/site-packages/MySQL_python-1.2.3c1-py2.7-macosx-10.7-intel.egg', 
'/Users/Bilal/Development/Django/ENV/traveller3/lib/python2.7/site-packages/scikit_learn-0.9-py2.7-macosx-10.7-intel.egg', 
'/Users/Bilal/Development', 
'/Library/Python/2.7/site-packages/pip-1.0.2-py2.7.egg', 
'/Users/Bilal/Development/scrapyard', 
'/Applications/PyCharm.app/helpers', 
'/Users/Bilal/Development/Django/ENV/traveller3/lib/python27.zip', 
'/Users/Bilal/Development/Django/ENV/traveller3/lib/python2.7', 
'/Users/Bilal/Development/Django/ENV/traveller3/lib/python2.7/plat-darwin', 
'/Users/Bilal/Development/Django/ENV/traveller3/lib/python2.7/plat-mac', 
'/Users/Bilal/Development/Django/ENV/traveller3/lib/python2.7/plat-mac/lib-scriptpackages', 
'/Users/Bilal/Development/Django/ENV/traveller3/Extras/lib/python', 
'/Users/Bilal/Development/Django/ENV/traveller3/lib/python2.7/lib-tk', 
'/Users/Bilal/Development/Django/ENV/traveller3/lib/python2.7/lib-old', 
'/Users/Bilal/Development/Django/ENV/traveller3/lib/python2.7/lib-dynload', 
'/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7', 
'/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-darwin', 
'/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-tk', 
'/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac', 
'/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac/lib-scriptpackages', 
'/Users/Bilal/Development/Django/ENV/traveller3/lib/python2.7/site-packages', 
'/Users/Bilal/Development/Django/ENV/traveller3/lib/python2.7/site-packages/PIL', 
'/Library/Python/2.7/site-packages', 
'/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python', 
'/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/PyObjC', 
'/Users/Bilal/Development/Django/ENV/traveller3/lib/python2.7/site-packages/IPython/extensions'] 

Answer 1

を持っていない：

admin.site.register([Blog, BlogAdmin]) 

adminにあなたを登録2つのモデル：BlogとBlogAdmin、を登録する必要があります210とModelAdminの場合は、次のようになります。

admin.site.register(Blog, BlogAdmin)