Django - Paginator

Posted under » Django on 5 Jun 2021

Django provides high-level and low-level ways to help you manage paginated data – that is, data that’s split across several pages, with “Previous/Next” links.

django.views.generic.list.ListView provides a builtin way to paginate the displayed list. You can do this by adding a paginate_by attribute to your view class, for example

from django.views.generic import ListView

from myapp.models import Contact

class ContactListView(ListView):
    paginate_by = 2
    model = Contact

You can also use Paginator in a view function.

from django.core.paginator import Paginator

from myapp.models import Contact

def listing(request):
    contact_list = Contact.objects.all()
    paginator = Paginator(contact_list, 25) # Show 25 contacts per page.
    page_number = request.GET.get('page')
    page_obj = paginator.get_page(page_number)
    return render(request, 'list.html', {'page_obj': page_obj})

Here is how the template may look like.

{% for contact in page_obj %}
    {# Each "contact" is a Contact model object. #}
    {{ contact.full_name|upper }}<br>
    ...
{% endfor %}

<div class="pagination">
    <span class="step-links">
        {% if page_obj.has_previous %}
            <a href="?page=1">« first</a>
            <a href="?page={{ page_obj.previous_page_number }}">previous</a>
        {% endif %}

        <span class="current">
            Page {{ page_obj.number }} of {{ page_obj.paginator.num_pages }}.
        </span>

        {% if page_obj.has_next %}
            <a href="?page={{ page_obj.next_page_number }}">next</a>
            <a href="?page={{ page_obj.paginator.num_pages }}">last »</a>
        {% endif %}
    </span>
</div>

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