Simple method for using the DjangoModelPermissions permissions class on wrapped function-based views.

model_perms_decorator.py

from rest_framework.permissions import DjangoModelPermissions

class BaseModelPerm(DjangoModelPermissions):
    def has_permission(self, request, view):
        perms = self.get_required_permissions(request.method, self.model)

        return (
            request.user and
            (request.user.is_authenticated() or not self.authenticated_users_only) and
            request.user.has_perms(perms)
        )

def model_permissions(model_cls, base=BaseModelPerm):
    from rest_framework.decorators import permission_classes
    class DjangoModelPerm(base):
        model = model_cls
    return permission_classes((DjangoModelPerm,))


# Example:

class OperationViewSet(viewsets.ModelViewSet):
    """Operation's independent view and edit endpoint."""
    queryset = (
        models.Operation.objects
        .filter(inventory=False)
        .order_by('-scheduled_finish', '-urgency'))
    serializer_class = serializers.OperationSerializer
    lookup_value_regex = r'[0-9]+'

    @detail_route(methods=['post'])
    @model_permissions(models.Operation)
    @transaction.atomic
    def start(self, request, pk=None):
        # I can do whatever I want because I'm ALLOWED to.

Thanks a lot for providing this! How do you handle regular permissions in addition to these? For example, this doesn't work for me:
@model_permissions(models.Operation)
@permission_classes((SomeOtherCustomPermission,))