Django使用自定义API视图进行框架分页

Question

I am trying to add pagination into my project, couldn't find any clear documentation or tutorial.

I have a list of offices

models Office.py

class Office(Model):
    name = CharField(_("name"), default=None, max_length=255, null=True)
    email = EmailField(_("email"), default=None, max_length=255, null=True)
    description = TextField(_("description"), default=None, null=True)

Serializer

class OfficeSerializer(ModelSerializer):
     id = IntegerField(read_only=True)
     name = CharField(read_only=True)
     email = URLField(read_only=True)
     description = CharField(read_only=True)

class Meta:
    model = Office
    fields = ("id", "name", "email", "description")

views.py

@api_view(["GET"])
@permission_classes((AllowAny,))
def offices(request):
    instance = Office.objects.filter()[:10]
    serializer = OfficeSerializer(instance, many=True)

    return Response(serializer.data)

Any help with returning Office list with pagination ?

Answer 1

http://www.django-rest-framework.org/api-guide/pagination/

Pagination is only performed automatically if you're using the generic views or viewsets. If you're using a regular APIView, you'll need to call into the pagination API yourself to ensure you return a paginated response. See the source code for the mixins.ListModelMixin and generics.GenericAPIView classes for an example.

https://github.com/tomchristie/django-rest-framework/blob/master/rest_framework/mixins.py#L35 https://github.com/tomchristie/django-rest-framework/blob/master/rest_framework/generics.py#L166

so I would suggest something like:

@api_view(["GET"])
@permission_classes((AllowAny,))
def offices(request):
    pagination_class = api_settings.DEFAULT_PAGINATION_CLASS
    paginator = pagination_class()
    queryset = Office.objects.all()
    page = paginator.paginate_queryset(queryset, request)

    serializer = OfficeSerializer(page, many=True)

    return paginator.get_paginated_response(serializer.data)

Answer 2

http://www.django-rest-framework.org/api-guide/pagination/

GET https://api.example.org/accounts/?limit=100&offset=400

Response:

HTTP 200 OK
{
    "count": 1023
    "next": "https://api.example.org/accounts/?limit=100&offset=500",
    "previous": "https://api.example.org/accounts/?limit=100&offset=300",
    "results": [
       …
    ]
}

Example of settings.py

REST_FRAMEWORK = {
    'PAGE_SIZE': 10,
    'EXCEPTION_HANDLER': 'rest_framework_json_api.exceptions.exception_handler',
    'DEFAULT_PAGINATION_CLASS':
        'rest_framework_json_api.pagination.PageNumberPagination',
    'DEFAULT_PARSER_CLASSES': (
        'rest_framework_json_api.parsers.JSONParser',
        'rest_framework.parsers.FormParser',
        'rest_framework.parsers.MultiPartParser'
    ),
    'DEFAULT_RENDERER_CLASSES': (
        'rest_framework_json_api.renderers.JSONRenderer',
        'rest_framework.renderers.BrowsableAPIRenderer',
    )
}