Django Rest Framework - 封装分页响应

Question

我想将分页回复包装在信封中。结果应如下所示。

{
    "data": ["datum 1", "datum 2", "datum 3"],
    "meta": {
        "some": "meta",
        "data": "foo",
    },
    "page": {
        "total": 12345,
        "count": 3,
        "from": 3,
        "to": 6,
        "next": "http://example.com?page=2",
        "prev": "http://example.com?page=0",
    }
}

自定义页面格式可以通过继承PageNumberPagination来实现。我的问题是关于传递元数据。除了某种形式的带内信号外，我看不出有任何方法可以将它传递给分页。有干净的（呃）方法来做到这一点吗？

Answer 1

class CustomPagination(pagination.PageNumberPagination):
    <b>view = None</b>

    def paginate_queryset(self, queryset, request, view=None):
        <b>self.view = view</b>
        return super().paginate_queryset(queryset, request, view)

    <b>def get_meta(self, data=None, **meta):
        return {
            'data_from_view': self.view.__class__.__name__,
            'static_data': settings.ROOT_URLCONF,
            'len_per_page': len(data),
            'dynamic_data_on_thy_fly': meta
        }</b>

    def get_paginated_response(self, data, **meta):
        return Response({
            'links': {
                'next': self.get_next_link(),
                'previous': self.get_previous_link()
            },
            <b>'meta': self.get_meta(data, **meta),</b>
            'count': self.page.paginator.count,
            'results': data
        })

Django Rest Framework - 封装分页响应

Django Rest Framework - Envelope a Paginated Response

django

pagination

metadata

django-rest-framework