code: def post(self, request, *args, **kwargs):
          
          self.object = self.get_object()
          self.login()
          if self.object.password:
              entry_password = self.request.POST.get('entry_password')
              if entry_password:
                  if entry_password == self.object.password:
                      self.request.session[self.session_key %
                                           self.object.pk] = self.object.password
                      return self.get(request, *args, **kwargs)
                  else:
                      self.error = True
              return self.password()
          return self.get(request, *args, **kwargs)
docs: Do the login and password protection.