Django 中间件不起作用模板

Question

我实现了Django中间件的动态logo，网站标题等。它工作得很慢。的例子。当我更新我的网站标题时，它并没有立即更新。但是当我重启服务器时，它正在工作。这是我的代码

class AppBasicInfo():
def __init__(self, get_response):
self.site = SiteInfo.objects.first() if SiteInfo.objects.first() else "Not Implemented"
self.get_response = get_response
def __call__(self, request, *args, **kwargs):
request.site = self.site
response = self.get_response(request)
return response

设置文件

MIDDLEWARE = [
'blog.middleware.AppBasicInfo',
'django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
'debug_toolbar.middleware.DebugToolbarMiddleware',
'blog.middleware.AppMenu',
'blog.middleware.SocialIcon',
'blog.middleware.DynamicYear',
]

，我调用中间件变量作为我的模板，如{{request.site.site_title}}

Answer 1

__init__只被调用一次，尝试移动

self.site = SiteInfo.objects.first() if SiteInfo.objects.first() else "Not Implemented"

to__call__