Django休息框架: Adding a custom field to a paginated ViewSet

Question

我有一个分页结果集，因此响应返回如下:

{
"count": 944,
"next": "http://api.visitorlando.teeny/consumer/listings/?page=3",
"previous": "http://api.visitorlando.teeny/consumer/listings/",
"results": [
 {...}]
}

我需要向响应添加另一个自定义字段，如下所示:

{
"count": 944,
"custom_field": "test",
"next": "http://api.visitorlando.teeny/consumer/listings/?page=3",
"previous": "http://api.visitorlando.teeny/consumer/listings/",
"results": [
 {...}]
}

我在 ViewSet 中。我怎样才能做到这一点？

Answer 1

您可以定义自定义分页类:

class CustomPagination(pagination.PageNumberPagination):
    def get_paginated_response(self, data):
        return Response({
            'links': {
               'next': self.get_next_link(),
               'previous': self.get_previous_link()
            },
            'count': self.page.paginator.count,
            'results': data,
            "custom_field": "test",
        })


class YourListView(generics.ListAPIView):
    pagination_class = CustomPagination

更多详情:custom-pagination