django ‘XXX’ object has no attribute 'session'

在使用装饰器验证用户是否登录的时候，装饰器函数里面用到了request参数，从request.session中获取用户是否登录。运行时报错。

# 装饰器函数代码
def auth(func):
    def inner(request, *args, **kwargs):
        if request.session.get('is_login', None):
            response = func(request, *args, **kwargs)
            return response
        else:
            return render(request, 'login.html')
    return inner

# view视图函数代码
class JenkinsLoginView(View):
    @auth
    def get(self,request):
        nick = request.session.get('nick')
        if request.session.get('j_login', None):
            jip_port = request.session['jip_port']
            jtitle = '已登录：' + jip_port
            return render(request, 'jenkins/jenkins_login.html', {'nick': nick, 'jtitle': jtitle})

报错是因为@auth用法错误。

解决办法改为： 

from django.utils.decorators import method_decorator

@method_decorator(auth)