Django DRF CreateAPIView中的条件语句

我想限制哪些类别的用户可以上传图片基于某些标准。在下面的代码中，我可以在网站上做我想做的事情

class PhotoUploadForm(forms.ModelForm):
    class Meta:
        model = Photo
        fields = ('photo', 'category')

    def __init__(self, *args, **kwargs):
        if not hasattr(self, 'request'):
            self.request = kwargs.pop('request')

        super(PhotoUploadForm, self).__init__(*args, **kwargs)

        if not self.request.user.edu_email:
            self.fields['category'].queryset = Category.objects.exclude(
                title='University')

然而，我不知道如何在Django Rest框架中模拟这一点，以便在我的API中使用。有人知道怎么做吗

提前谢谢你

序列化程序：

查看：

---

将此添加到您的PhotoCreateAPIView：

def get_queryset(self):
    if not self.request.user.edu_email:
         return Category.objects.exclude(
            title='University')

DRF提供了限制特定用户的权限

权限.py viewsets.py

class PhotoCreateAPIView(generics.CreateAPIView):
    serializer_class = PhotoCreateSerializer

def get_queryset(self):
    if not self.request.user.edu_email:
         return Category.objects.exclude(
            title='University')

from rest_framework.permissions import IsAuthenticated

class PhotoUploadPermissions(IsAuthenticated):
    """ write custom permissions here"""
    def has_permission(self, request, view):
        if not request.user.edu_email:
            queryset = view.get_queryset()
            category_exclude = queryset.exclude(title='University')
            if category_exclude:
                return True
            else:
               return False

class PhotoCreateAPIView(viewsets.ModelViewSet):
    queryset = Category.objects.all()
    permission_classes = (PhotoUploadPermissions,)
    serializer_class = PhotoCreateSerializer