django.core.exceptions.ImproperlyConfigured

Question

我最近搬到了另一台机器上，不得不再次从subversion中检出我的项目，但我非常确定这台计算机安装了Django 1.8，该项目预期为1.7。

我尝试将我的数据库与代码同步以创建所需的表，但得到以下错误。

C:\Users\jont\Documents\ATP\Webapp>manage.py syncdb
C:\Python27\lib\site-packages\admin_tools\utils.py:9: RemovedInDjango19Warning:      
django.utils.importlib will be removed in Django 1.9.
from django.utils.importlib import import_module

c:\users\jont\documents\django-trunk\django\contrib\contenttypes\models.py:148:  
RemovedInDjango19Warning: Model class django.contrib.contenttypes.models.ContentType doesn't de
her isn't in an application in INSTALLED_APPS or else was imported before its application was  
loaded. This will no longer be supported in Django 1.9.
class ContentType(models.Model):

C:\Python27\lib\site-packages\admin_tools\dashboard\modules.py:8: RemovedInDjango19Warning: The 
django.forms.util module has been renamed. Use django.forms.utils instead.
from django.forms.util import flatatt

C:\Python27\lib\site-packages\django_tables2\tables.py:171: RemovedInDjango19Warning: SortedDict
is deprecated and will be removed in Django 1.9. attrs["base_columns"] =  
SortedDict(parent_columns)

C:\Python27\lib\site-packages\django_tables2\tables.py:193: RemovedInDjango19Warning: SortedDict 
is deprecated and will be removed in Django 1.9.
attrs["base_columns"].update(SortedDict(cols))

Traceback (most recent call last):
File "C:\Users\jont\Documents\ATP\Webapp\manage.py", line 15, in <module>
execute_from_command_line(sys.argv)
File "c:\users\jont\documents\django-trunk\django\core\management\__init__.py", line 336, in
execute_from_command_line
utility.execute()
File "c:\users\jont\documents\django-trunk\django\core\management\__init__.py", line 310, in 
execute
django.setup()
File "c:\users\jont\documents\django-trunk\django\__init__.py", line 23, in setup
apps.populate(settings.INSTALLED_APPS)
File "c:\users\jont\documents\django-trunk\django\apps\registry.py", line 115, in populate
app_config.ready()
File "c:\users\jont\documents\django-trunk\django\contrib\admin\apps.py", line 22, in ready
self.module.autodiscover()
File "c:\users\jont\documents\django-trunk\django\contrib\admin\__init__.py", line 24, in  
autodiscover
autodiscover_modules('admin', register_to=site)
File "c:\users\jont\documents\django-trunk\django\utils\module_loading.py", line 73, in 
autodiscover_modules
import_module('%s.%s' % (app_config.name, module_to_search))
File "C:\Python27\lib\importlib\__init__.py", line 37, in import_module
__import__(name)
File "C:\Users\jont\Documents\ATP\Webapp\jobs\admin.py", line 4, in <module>
from jobs.views import registration
File "C:\Users\jont\Documents\ATP\Webapp\jobs\views.py", line 12, in <module>
from jobs.forms import ApplicantForm, JobForm, \
File "C:\Users\jont\Documents\ATP\Webapp\jobs\forms.py", line 8, in <module>
class JobForm(forms.ModelForm):
File "c:\users\jont\documents\django-trunk\django\forms\models.py", line 272, in __new__
"needs updating." % name
django.core.exceptions.ImproperlyConfigured: Creating a ModelForm without either the 'fields'   attribute or the 'exclude' attribute is prohibited; form JobForm needs updating.

django.core.exceptions.ImproperlyConfigured: Creating a ModelForm without either the 'fields' attribute or the 'exclude' attribute is prohibited; form JobForm needs updating.

Answer 1

与提到的错误一样，您需要显式排除并指定字段，即。

尝尝这个

class JobForm(models.ModelForm):
    #fields

    class Meta:
        model = Job
        fields = "__all__" 

它将包括所有字段

下面是相关的documentation (release notes 1.6)

以前，如果希望ModelForm使用模型上的所有字段，只需省略Meta.fields属性，就会使用所有字段。

这可能会导致安全问题，其中字段被添加到模型中，并且无意中自动变为可由最终用户编辑。在某些情况下，特别是在布尔型字段中，这个问题可能是完全不可见的。这是批量分配漏洞的一种形式。

因此，不推荐使用此行为，并且强烈建议您使用Meta.exclude选项。相反，所有要包含在表单中的字段都应该在field属性中显式列出。

如果此安全性问题确实不适用于您的情况，则有一种快捷方式可以明确指示应使用所有字段-对字段属性使用特殊值“__all__

Answer 2

您可以在Django1.7的ModelForm中设置字段或排除字段。它在1.8中发生了变化，您应该在ModelForm中的Meta类中设置字段或排除字段。

class JobForm(models.ModelForm):
#fields

class Meta:
    model = Job
    fields = "__all__" 

Answer 3

升级到Django 1.7似乎可以做到这一点。似乎没有一种简单的方法来调整代码以适应Django 1.8。