Django rest framework Django REST框架：检查用户是否在组中

我想知道创建自定义权限以检查用户是否在特定组中的最佳方法。以前，我有一个装饰器，我可以在视图上使用它来传递组名的元组以及用户对象，然后检查该用户是否在指定的组中

即：

考虑到我需要检查不同操作（POST、PUT、GET）的不同组成员身份，如何为视图集的DRF执行此操作

非常感谢,，

---

Ben

参数化权限类的合理方法是将参数放在view类上。这将允许您在不同的视图中更改行为

下面是一个例子：

# permissions.py
from django.contrib.auth.models import Group
from rest_framework import permissions

def is_in_group(user, group_name):
    """
    Takes a user and a group name, and returns `True` if the user is in that group.
    """
    try:
        return Group.objects.get(name=group_name).user_set.filter(id=user.id).exists()
    except Group.DoesNotExist:
        return None

class HasGroupPermission(permissions.BasePermission):
    """
    Ensure user is in required groups.
    """

    def has_permission(self, request, view):
        # Get a mapping of methods -> required group.
        required_groups_mapping = getattr(view, "required_groups", {})

        # Determine the required groups for this particular request method.
        required_groups = required_groups_mapping.get(request.method, [])

        # Return True if the user has all the required groups or is staff.
        return all([is_in_group(request.user, group_name) if group_name != "__all__" else True for group_name in required_groups]) or (request.user and request.user.is_staff)

然后可以像这样使用

HasGroupPermission

类：

# views.py
class MyView(APIView):
     permission_classes = [HasGroupPermission]
     required_groups = {
         'GET': ['moderators', 'members'],
         'POST': ['moderators', 'someMadeUpGroup'],
         'PUT': ['__all__'],
     }

     ...

---

希望有帮助

谢谢你的帮助

# views.py
class MyView(APIView):
     permission_classes = [HasGroupPermission]
     required_groups = {
         'GET': ['moderators', 'members'],
         'POST': ['moderators', 'someMadeUpGroup'],
         'PUT': ['__all__'],
     }

     ...