在Heroku上使用Django时405 POST方法不被允许

Question

我有一个Django的网络服务，在本地运行得很好，但一上传到Heroku，就总是出现405错误，不管我在哪里发帖。为了处理这个问题，我在所有的发帖视图上都加了一个csrf_exempt，这些视图都是基于类的。

class ApplyForRental(View):
    def post(self, request, rentalID):
        #user = User.objects.filter(pk = rentalID)
        #filtered = Contentfile.objects.filter(file_owner = user, published=True)
        rental = RentProperty.objects.get(pk = rentalID)
        applicant = User.objects.get(pk=request.POST.get('interested_renter'))
        rental.interested_renters.add(applicant)

        jsonDict = {"success":True}
        data = json.dumps(jsonDict)

        return HttpResponse(data, content_type='application/json')

    @csrf_exempt
    def dispatch(self,*args,**kwargs):
        return super(ApplyForRental, self).dispatch(*args,**kwargs)

有没有什么原因解释为什么在Heroku上不行，但在本地却可以呢？

我的网址文件：

urlpatterns = patterns('',
    # Examples:
    # url(r'^$', 'homerun.views.home', name='home'),
    # url(r'^blog/', include('blog.urls')),
    url(r'^rentals/', include('rentals.urls', namespace="rentals")),
    url(r'^users/(?P<userID>\w+)/$', views.UserInfo.as_view(), name='getUser'),
    (r'^grappelli/', include('grappelli.urls')),
    url(r'^admin/', include(admin.site.urls)),
)

应用：

urlpatterns = patterns('',

    url(r'^create/$', views.CreateRental.as_view(), name='createRental'),
    url(r'^(?P<rentalID>\w+)/$', views.RentalInformation.as_view(), name='getrental'),
    url(r'^users/(?P<userID>\w+)/$', views.UserRentals.as_view(), name='userrentals'),
    url(r'^(?P<rentalID>\w+)/uploadimage/$', views.UploadImage.as_view(), name='uploadimage'),
    url(r'^(?P<rentalID>\w+)/apply/$', views.ApplyForRental.as_view(), name='applyforrental'),
    url(r'^$', views.RentalsList.as_view(), name='getRentals'),


    #url(r'^filesInfoByOwner/(?P<userName>\w+)/pk/(?P<pk>\d+)/$', views.FileInfo.as_view(), name='filesByOwnerAndPK'),
    #url(r'^filesContentByOwner/(?P<userName>\w+)/pk/(?P<pk>\d+)/$', views.GetFileContent.as_view(), name='fileContent'),

)

所有的发帖在本地都不工作。

Answer 1

我不确定这是否是你错误的确切原因，但在实例方法上使用装饰器时，你需要把它放在 @method_decorator 调用里面。所以你的 dispatch 函数应该像这样：

from django.utils.decorators import method_decorator

@method_decorator(csrf_exempt)
def dispatch(self,*args,**kwargs):
    return super(ApplyForRental, self).dispatch(*args,**kwargs)

https://docs.djangoproject.com/en/1.7/topics/class-based-views/intro/#decorating-the-class