ModelOptions'对象没有属性'local_many_to_many

Question

我正在尝试把一个Django项目迁移到GAE（谷歌应用引擎）上。

问题是我在尝试登录时遇到了这个错误：

'ModelOptions' object has no attribute 'local_many_to_many'

导致错误的代码行：

user = authenticate(username=uName,password=uPass)

部分代码：

 if request.method == 'POST':
        if request.POST['submit'] == 'Login':
            postDict = request.POST.copy()
            lForm = LoginForm(postDict)
            if (lForm.is_valid()):
                uName = request.POST['username']
                uPass = request.POST['password']
                user = authenticate(username=uName,password=uPass) 
                if user is not None:
                    if user.is_active:
                        login(request,user)
                        return HttpResponseRedirect(next)
                    else:
                        message = 'Account Deactivated'

错误追踪信息：

    ['/Users/xavicolomer/Dropbox/projects/workspace2/test', 
'/Users/xavicolomer/Dropbox/projects/workspace2/test/django.zip', 
'/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine', 
'/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/antlr3', 
'/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/django_0_96', 
'/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/fancy_urllib', 
'/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/ipaddr', 
'/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/webob', 
'/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/yaml/lib', 
'/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/simplejson', 
'/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/graphy', 
'/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine', 
'/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources', 
'/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python26.zip', 
'/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6', 
'/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/plat-darwin', 
'/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/plat-mac', 
'/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/plat-mac/lib-scriptpackages', '/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python', 
'/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-tk', 
'/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-old', 
'/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-dynload', 
'/Library/Python/2.6/site-packages', 
'/usr/share/django/django-trunk', 
'/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/PyObjC', 
'/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/wx-2.8-mac-unicode']

Answer 1

你在用django-nonrel自带的认证应用吗？这个应用是不能用的，因为它需要进行数据连接。你可以安装django-permission-backend-nonrel，这样就能正常工作了。