Question

这是我的观点，巫婆工作正常：

from django.http import Http404, HttpResponse, HttpResponseRedirect
from django.views.decorators.csrf import csrf_exempt
from rest_framework.renderers import JSONRenderer
from rest_framework.parsers import JSONParser
from rest_framework import serializers
from gamerauntsia.berriak.serializers import BerriaSerializer
from rest_framework.response import Response
import json



class JSONResponse(HttpResponse):
    """
    An HttpResponse that renders its content into JSON.
    """
    def __init__(self, data, **kwargs):
        content = JSONRenderer().render(data)
        kwargs['content_type'] = 'application/json'
        super(JSONResponse, self).__init__(content, **kwargs)

@csrf_exempt
def app_berria_list(request):
    if request.method == 'GET':
        berriak = Berria.objects.all()
        serializer = BerriaSerializer(berriak, many=True)
        return JSONResponse(serializer.data)

我希望响应分为5个项目，所以我尝试在settings.py中添加它：

REST_FRAMEWORK = {
    'DEFAULT_AUTHENTICATION_CLASSES': [
        'rest_framework.authentication.SessionAuthentication',
        'rest_framework.authentication.TokenAuthentication',
    ],
    'DEFAULT_PERMISSION_CLASSES': [
        'rest_framework.permissions.DjangoModelPermissionsOrAnonReadOnly'
    ],
    'DEFAULT_PAGINATION_CLASS': 'rest_framework.pagination.PageNumberPagination',
    'PAGE_SIZE': 5
}

我是否需要更改更多内容才能使其正常工作？提前致谢

Answer 1

序列化程序不会自己进行分页，您必须使用queryset作为参数调用分页类。默认情况下，内置的rest_framework.viewsets.ModelViewSet将执行JSON解析/呈现和分页，而无需执行任何操作。

为什么没有一个viewset类，如：

from rest_framework import viewsets
class BerriaViewSet(viewsets.ModelViewSet):
    queryset = Berria.objects.all()
    serializer_class = BerriaSerializer

这将做你想要的一切。

但是，如果您坚持按照自己的方式行事，则可以执行以下操作：

from rest_framework.pagination import PageNumberPagination
@csrf_exempt
def app_berria_list(request):
    if request.method == 'GET':
        berriak = Berria.objects.all()
        paginator = PageNumberPagination()
        page = paginator.paginate_queryset(berriak, request)
        serializer = BerriaSerializer(page, many=True, context={'request': request})
        return paginator.get_paginated_response(serializer.data)

django-rest-framework，如何分页

1 个答案: