Question

我想要实现的是，如果子域（租户）已注册，那么它应该显示另一个页面，否则执行正常。

我只是想用自定义中间件运行django。截至目前，get_response在显示主页时返回500状态。

以下例外会返回'NoneType' object is not callable

如果用户是普通用户而不是租户，我希望该应用程序正常运行。

我刚刚开始，但我认为get_response函数是显示其他中间件执行的响应，以后会导致500状态。

任何帮助试图找出，我如何使用我的自定义中间件是值得赞赏的。

class TenantMiddleware(MiddlewareMixin):
    def process_request(self, request):

        absolute_url = request.get_full_path()
        url = urlparse.urlparse(absolute_url)
        print absolute_url
        print url

        subdomain = url.hostname.split(".") if url.hostname else None
        if subdomain and subdomain != 'affectlab' :
            if 'subdomain' not in request.session:
                print "I am here"
                tenant=map(lambda x : x[0],(list(profiles.models.Tenant.objects.filter(name=subdomain).values_list('id'))))
                if tenant:
                    request.session['tenant'] = int(tenant[0])
                    request.session['subdomain'] = subdomain.strip()
                    return HttpResponseRedirect("/login/")

                else:
                    response = render_to_response('404.html', {},context_instance=RequestContext(request))
                    response.status_code = 404
                    return response
            else:
                if request.session['subdomain'] == subdomain:
                    return self.get_response(request)
                else:

                    tenant = map(lambda x: x[0],(list(profiles.models.Tenant.objects.filter(name=subdomain)).values_list('id')))
                    if tenant:
                        request.session['tenant'] = int(tenant[0])
                        request.session['subdomain'] = subdomain.strip()
                        response = logout(request)  # ,next_page=reverse("/"))
                        return HttpResponseRedirect("/login/")
                    else:
                        response = render_to_response('404.html', {}, context_instance=RequestContext(request))
                        response.status_code = 404
                        return response
        else:
            try :

                response = self.get_response(request)
            except Exception as e:
                print e.message
            return response

Answer 1

由于我使用的是Django1.10，我似乎必须在设置文件中使用MIDDLEWARE而不是MIDDLEWARE_CLASSES。

只需使用MIDDLEWARE。

我们也可以这样写。

class TenantMiddleware(object):

    def __init__(self,get_response):
        self.get_response = get_response    

    def __call__(self, request):

        absolute_url = request.get_full_path()
        url = urlparse.urlparse(absolute_url)
        print absolute_url
        print url

        subdomain = url.hostname.split(".") if url.hostname else None
        if subdomain and subdomain != 'affectlab' :
            if 'subdomain' not in request.session:
                print "I am here"
                tenant=map(lambda x : x[0],(list(profiles.models.Tenant.objects.filter(name=subdomain).values_list('id'))))
                if tenant:
                    request.session['tenant'] = int(tenant[0])
                    request.session['subdomain'] = subdomain.strip()
                    return HttpResponseRedirect("/login/")

                else:
                    response = render_to_response('404.html', {},context_instance=RequestContext(request))
                    response.status_code = 404
                    return response
            else:
                if request.session['subdomain'] == subdomain:
                    return self.get_response(request)
                else:

                    tenant = map(lambda x: x[0],(list(profiles.models.Tenant.objects.filter(name=subdomain)).values_list('id')))
                    if tenant:
                        request.session['tenant'] = int(tenant[0])
                        request.session['subdomain'] = subdomain.strip()
                        response = logout(request)  # ,next_page=reverse("/"))
                        return HttpResponseRedirect("/login/")
                    else:
                        response = render_to_response('404.html', {}, context_instance=RequestContext(request))
                        response.status_code = 404
                        return response
        else:
            try :

                response = self.get_response(request)
            except Exception as e:
                print e.message1
            return response

自定义中间件get_response不起作用

1 个答案: