我在 DRF 文档上读到,您可以通过覆盖 .get_queryset() 来过滤查询参数。我正在寻找最佳实践,返回什么,以防过滤器不正确以及在哪里返回错误消息。
我提到的文档是here 我包括下面的源代码
class PurchaseList(generics.ListAPIView):
serializer_class = PurchaseSerializer
def get_queryset(self):
"""
Optionally restricts the returned purchases to a given user,
by filtering against a `username` query parameter in the URL.
"""
queryset = Purchase.objects.all()
username = self.request.query_params.get('username', None)
if username is not None:
queryset = queryset.filter(purchaser__username=username)
return queryset
感谢您的帮助