“海峡”对象没有属性，当我取消admin.autodiscover“_meta”的错误来了（）

我面对这个错误在Django：“海峡”对象没有属性，当我取消admin.autodiscover“_meta”的错误来了（）

AttributeError at/
'str' object has no attribute '_meta' 
Request Method: GET 
Request URL: http://localhost:8000/ 
Django Version: 1.3 
Exception Type: AttributeError 
Exception Value:  
'str' object has no attribute '_meta' 
Exception Location: C:\Python27\lib\site-packages\django\contrib\admin\sites.py in   register, line 80 
Python Executable: C:\Python27\python.exe 
Python Version: 2.7.2 
Python Path: ['D:\\programming\\django_projects\\ecomstore', 
'C:\\Python27\\lib\\site-packages\\setuptools-0.6c9-py2.7.egg', 
'C:\\Python27\\lib\\site-packages\\pymysql-0.3-py2.6.egg', 
'C:\\Windows\\system32\\python27.zip', 
'C:\\Python27\\DLLs', 
'C:\\Python27\\lib', 
'C:\\Python27\\lib\\plat-win', 
'C:\\Python27\\lib\\lib-tk', 
'C:\\Python27', 
'C:\\Python27\\lib\\site-packages', 
'C:\\Python27\\lib\\site-packages\\PIL'] 
Server time: Fri, 13 Jan 2012 16:44:18 +0500

如果我注释掉admin.autodiscover()不会发生这种错误，我也用django中的ModelForm，所以是因为ModelForm？以下是ModelForm代码：

from django import forms 
from catalog.models import Product 

class ProductAdminForm(forms.ModelForm): 
    class Meta: 
    model=Product 
    def clean_price(self): 
     if self.cleaned_data['price']<=0: 
      raise forms.ValidationError('Price must be greater than zero') 
     return self.cleaned_data['price']

所以，如果有人了解问题，那么请告诉。

以下是回溯，粘贴：

Environment: 


Request Method: GET 
Request URL: http://localhost:8000/ 

Django Version: 1.3 
Python Version: 2.7.2 
Installed Applications: 
['django.contrib.auth', 
    'django.contrib.contenttypes', 
    'django.contrib.sessions', 
    'django.contrib.sites', 
    'django.contrib.messages', 
    'django.contrib.staticfiles', 
    'django.contrib.admin', 
    'ecomstore.catalog'] 
Installed Middleware: 
('django.middleware.common.CommonMiddleware', 
    'django.contrib.sessions.middleware.SessionMiddleware', 
    'django.middleware.csrf.CsrfViewMiddleware', 
    'django.contrib.auth.middleware.AuthenticationMiddleware', 
    'django.contrib.messages.middleware.MessageMiddleware') 


Traceback: 
File "C:\Python27\lib\site-packages\django\core\handlers\base.py" in get_response 
101.        request.path_info) 
File "C:\Python27\lib\site-packages\django\core\urlresolvers.py" in resolve 
250.    for pattern in self.url_patterns: 
File "C:\Python27\lib\site-packages\django\core\urlresolvers.py" in _get_url_patterns 
279.   patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module) 
File "C:\Python27\lib\site-packages\django\core\urlresolvers.py" in _get_urlconf_module 
274.    self._urlconf_module = import_module(self.urlconf_name) 
File "C:\Python27\lib\site-packages\django\utils\importlib.py" in import_module 
35.  __import__(name) 
File "D:\programming\django_projects\ecomstore\..\ecomstore\urls.py" in <module> 
5. admin.autodiscover() 
File "C:\Python27\lib\site-packages\django\contrib\admin\__init__.py" in autodiscover 
26.    import_module('%s.admin' % app) 
File "C:\Python27\lib\site-packages\django\utils\importlib.py" in import_module 
35.  __import__(name) 
    File "D:\programming\django_projects\ecomstore\..\ecomstore\catalog\admin.py" in <module> 
19. admin.site.register('Product', 'ProductAdmin') 
File "C:\Python27\lib\site-packages\django\contrib\admin\sites.py" in register 
80.    if model._meta.abstract: 

Exception Type: AttributeError at/
Exception Value: 'str' object has no attribute '_meta'

来源

2012-01-13 Hafiz

完整的回溯将非常有帮助。在某处，你用一个字符串而不是一个类对象作为第一个参数来调用admin.site.register（），但是我们不能告诉没有TB的地方。 – AdamKG 2012-01-13 12:05:41

此外，ProductAdminForm中的缩进会被搞乱，因为粘贴clean_price是Meta子类的一种方法，而不是ProductAdminForm，但这可能只是复制/粘贴问题，并且可能不会导致AttributeError。 – AdamKG 2012-01-13 12:05:53

@AdamKG：这只是复制粘贴问题和格式化在stackoverflow编辑器，也追溯现在增加 – Hafiz 2012-01-13 16:49:06

的问题是这一行：

admin.site.register('Product', 'ProductAdmin')

你必须在类对象，而不是字符串传递。这应该工作：

admin.site.register(Product, ProductAdmin)

来源

2012-01-13 16:51:20 mipadi

“海峡”对象没有属性，当我取消admin.autodiscover“_meta”的错误来了（）

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