Django Signals request_finished 获取用户实例

Question

我试图理解 Django 中的信号。我正在为 DRF 创建项目。

from django.dispatch import receiver
from django.contrib.auth.signals import user_logged_in
from django.core.signals import request_finished

对于这个信号，我可以捕获用户

@receiver(user_logged_in)
def last_user_login(sender, request, user, **kwargs):
    print('User **{}** logged in'.format(user))

我想捕获这个信号的用户，但据我所知这是不可能的。

@receiver(request_finished)
def last_user_request(sender, **kwargs):
    print('User made request')

我的目标:捕获最后一个用户请求并将此数据写入数据库。
有人可以帮助我吗？谢谢。

Answer 1

写个 custom middleware为达到这个:
中间件.py:

class SimpleMiddleware:
   def __init__(self, get_response):
        self.get_response = get_response
        # One-time configuration and initialization.
    
    def __call__(self, request):
        # Code to be executed for each request before
        # the view (and later middleware) are called.
    
        response = self.get_response(request)
    
        print(response.status_code)
 print(request.user.username)
 # Add user data in db....
 if request.method == 'POST':
 print(request.POST)
    
        # Code to be executed for each request/response after
        # the view is called.
    
        return response

设置.py:

MIDDLEWARE = [

    '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',
     
    'myproject.middleware.SimpleMiddleware',
    
]