class PageNumberPagination

from rest_framework.pagination import PageNumberPagination

Documentation Source code

    A simple page number based style that supports page numbers as
    query parameters. For example:

    http://api.example.org/accounts/?page=4
    http://api.example.org/accounts/?page=4&page_size=100

Ancestors (MRO)

PageNumberPagination
BasePagination

Attributes

	Defined in
`display_page_controls = False`	BasePagination
`django_paginator_class = <class 'django.core.paginator.Paginator'>`	PageNumberPagination
`invalid_page_message = 'Invalid page.'`	PageNumberPagination
`last_page_strings = ('last',)`	PageNumberPagination
`max_page_size = None`	PageNumberPagination
`page_query_description = 'A page number within the paginated result set.'`	PageNumberPagination
`page_query_param = 'page'`	PageNumberPagination
`page_size = None`	PageNumberPagination
`page_size_query_description = 'Number of results to return per page.'`	PageNumberPagination
`page_size_query_param = None`	PageNumberPagination
`template = 'rest_framework/pagination/numbers.html'`	PageNumberPagination

Expand Collapse

Methods

`def get_html_context(self):` ¶ PageNumberPagination

    def get_html_context(self):
        base_url = self.request.build_absolute_uri()

        def page_number_to_url(page_number):
            if page_number == 1:
                return remove_query_param(base_url, self.page_query_param)
            else:
                return replace_query_param(base_url, self.page_query_param, page_number)

        current = self.page.number
        final = self.page.paginator.num_pages
        page_numbers = _get_displayed_page_numbers(current, final)
        page_links = _get_page_links(page_numbers, current, page_number_to_url)

        return {
            'previous_url': self.get_previous_link(),
            'next_url': self.get_next_link(),
            'page_links': page_links
        }

`def get_next_link(self):` ¶ PageNumberPagination

    def get_next_link(self):
        if not self.page.has_next():
            return None
        url = self.request.build_absolute_uri()
        page_number = self.page.next_page_number()
        return replace_query_param(url, self.page_query_param, page_number)

`def get_page_size(self, request):` ¶ PageNumberPagination

    def get_page_size(self, request):
        if self.page_size_query_param:
            try:
                return _positive_int(
                    request.query_params[self.page_size_query_param],
                    strict=True,
                    cutoff=self.max_page_size
                )
            except (KeyError, ValueError):
                pass

        return self.page_size

`def get_paginated_response(self, data):` ¶

PageNumberPagination

    def get_paginated_response(self, data):
        return Response(OrderedDict([
            ('count', self.page.paginator.count),
            ('next', self.get_next_link()),
            ('previous', self.get_previous_link()),
            ('results', data)
        ]))

BasePagination

    def get_paginated_response(self, data):  # pragma: no cover
        raise NotImplementedError('get_paginated_response() must be implemented.')

`def get_previous_link(self):` ¶ PageNumberPagination

    def get_previous_link(self):
        if not self.page.has_previous():
            return None
        url = self.request.build_absolute_uri()
        page_number = self.page.previous_page_number()
        if page_number == 1:
            return remove_query_param(url, self.page_query_param)
        return replace_query_param(url, self.page_query_param, page_number)

`def get_results(self, data):` ¶ BasePagination

    def get_results(self, data):
        return data['results']

`def get_schema_fields(self, view):` ¶

PageNumberPagination

    def get_schema_fields(self, view):
        assert coreapi is not None, 'coreapi must be installed to use `get_schema_fields()`'
        assert coreschema is not None, 'coreschema must be installed to use `get_schema_fields()`'
        fields = [
            coreapi.Field(
                name=self.page_query_param,
                required=False,
                location='query',
                schema=coreschema.Integer(
                    title='Page',
                    description=force_text(self.page_query_description)
                )
            )
        ]
        if self.page_size_query_param is not None:
            fields.append(
                coreapi.Field(
                    name=self.page_size_query_param,
                    required=False,
                    location='query',
                    schema=coreschema.Integer(
                        title='Page size',
                        description=force_text(self.page_size_query_description)
                    )
                )
            )
        return fields

BasePagination

    def get_schema_fields(self, view):
        assert coreapi is not None, 'coreapi must be installed to use `get_schema_fields()`'
        return []

`def paginate_queryset(self, queryset, request, view=None):` ¶

PageNumberPagination

        Paginate a queryset if required, either returning a
        page object, or `None` if pagination is not configured for this view.

    def paginate_queryset(self, queryset, request, view=None):
        """
        Paginate a queryset if required, either returning a
        page object, or `None` if pagination is not configured for this view.
        """
        page_size = self.get_page_size(request)
        if not page_size:
            return None

        paginator = self.django_paginator_class(queryset, page_size)
        page_number = request.query_params.get(self.page_query_param, 1)
        if page_number in self.last_page_strings:
            page_number = paginator.num_pages

        try:
            self.page = paginator.page(page_number)
        except InvalidPage as exc:
            msg = self.invalid_page_message.format(
                page_number=page_number, message=six.text_type(exc)
            )
            raise NotFound(msg)

        if paginator.num_pages > 1 and self.template is not None:
            # The browsable API should display pagination controls.
            self.display_page_controls = True

        self.request = request
        return list(self.page)

BasePagination

    def paginate_queryset(self, queryset, request, view=None):  # pragma: no cover
        raise NotImplementedError('paginate_queryset() must be implemented.')

`def to_html(self):` ¶

PageNumberPagination

    def to_html(self):
        template = loader.get_template(self.template)
        context = self.get_html_context()
        return template.render(context)

BasePagination

    def to_html(self):  # pragma: no cover
        raise NotImplementedError('to_html() must be implemented to display page controls.')