Redis自动更新缓存

Question

我正在使用Django-redis缓存，我将数据保存在redis缓存中但是当我更新数据库时，我无法在redis缓存中找到更新的数据。

我的代码是：

from django.shortcuts import render
from myapp.models import students
from rest_framework.views import APIView
from rest_framework.response import Response
from django.core.cache import cache


class UserListView(APIView):

    def get(self, request):

        data = cache.get('alldata')

        if not data:

            data = students.objects.values('cache_id', 'username',  'email')
            cache.set('alldata', data)

在settings.py中，我在中间件类中有以下项目：

MIDDLEWARE_CLASSES = (
'django.middleware.cache.UpdateCacheMiddleware',   
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
'django.middleware.security.SecurityMiddleware',
'debug_toolbar.middleware.DebugToolbarMiddleware',
'django.middleware.cache.FetchFromCacheMiddleware',
)

有没有办法自动更新redis缓存？