在Django的分页与邮差

Posted 2021-04-25

我正在使用Django 2.1版，我正在使用Postman测试我的项目。这是我的views.py文件： -

from rest_framework.generics import ListCreateAPIView,RetrieveUpdateDestroyAPIView
from rest_framework.permissions import AllowAny


# Add + List
# Retrieve Update Destroy
# List: Pagination

class ShowAddaView(ListCreateAPIView):

    from .serializers import AddAddaSerializer

    from .models import Adda

    permission_classes = (AllowAny, )
    serializer_class = AddAddaSerializer
    queryset = Adda.objects.all()


class RetrieveAddaView(RetrieveUpdateDestroyAPIView):
    from .serializers import AddAddaSerializer

    from .models import Adda

    permission_classes = (AllowAny,)
    serializer_class = AddAddaSerializer
    queryset = Adda.objects.all()

我在postman中应用GET和POST方法。我的序列化程序文件如下所示：

class AddAddaSerializer(serializers.ModelSerializer):
    class Meta:
        from .models import Adda
        model = Adda
        fields = '__all__'


class UpdateAddaSerializer(serializers.ModelSerializer):
    mobile = serializers.CharField(required=False)

    class Meta:
        from .models import Adda
        model = Adda
        fields = '__all__'

现在我需要使用Postman中的GET方法访问我的数据并使用分页。任何人都可以告诉我为实现它需要做些什么改变。

答案

将此设置添加到settings.py文件中，

REST_FRAMEWORK = {
    'DEFAULT_PAGINATION_CLASS': 'rest_framework.pagination.PageNumberPagination',
    'PAGE_SIZE': 10  # Change this value according to your need
}

或者你可以通过pagination_class在视图级别添加分页类

from rest_framework.pagination import PageNumberPagination


class ShowAddaView(ListCreateAPIView):
    # your code
    pagination_class = PageNumberPagination


class RetrieveAddaView(RetrieveUpdateDestroyAPIView):
    # your code
    pagination_class = PageNumberPagination

有关更多详细信息，请参阅Pagination in DRF