.. _pagination:

Pagination
==========

Pagination is easy, just call :meth:`.Table.paginate` and pass in the current
page number::

    def people_listing(request):
        table = PeopleTable(Person.objects.all())
        table.paginate(page=request.GET.get("page", 1), per_page=25)
        return render(request, "people_listing.html", {"table": table})

If you are using `.RequestConfig`, pass pagination options to the constructor::

    def people_listing(request):
        table = PeopleTable(Person.objects.all())
        RequestConfig(request, paginate={"per_page": 25}).configure(table)
        return render(request, "people_listing.html", {"table": table})

If you are using `SingleTableView`, the table will get paginated by default::

    class PeopleListView(SingleTableView):
        table = PeopleTable

Disabling pagination
~~~~~~~~~~~~~~~~~~~~

If you are using `SingleTableView` and want to disable the default behavior,
set `SingleTableView.table_pagination = False`

Lazy pagination
~~~~~~~~~~~~~~~

The default `~django.core.paginators.Paginator` want to count the number of items,
which might be an expensive operation for large QuerySets.
In those cases, you can use `.LazyPaginator`, which does not perform a count,
but also does not know what the total amount of pages will be.

The `.LazyPaginator` does this by fetching `n + 1` records where the number of records
per page is `n`. If it receives `n` or less records, it knows it is on the last page,
preventing rendering of the 'next' button.
Usage with `SingleTableView`::

    class UserListView(SingleTableView):
        table_class = UserTable
        table_data = User.objects.all()
        paginator_class = LazyPaginator
