modelViewSet 获取未序列化的数据

   def perform_create(self, serializer):
        user_obj=serializer.save()
        role_list=self.request.data.get(‘role‘)
        if role_list:
            for i in role_list:
                UserRole.objects.create(users=user_obj,roles_id=i)

 def perform_update(self,serializer):
        role_list=self.request.data.get(‘role‘)  
        user_obj=serializer.save()
        print(user_obj,‘obj‘)
        user_obj.userrole_set.all().delete()  # 获取所有角色然后删除 userrole表名
        for i in role_list:
            print(i,type(i),‘iiiiiiiii‘)
            user_role=UserRole.objects.create(users=user_obj,roles_id=i)