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django-pure-pagination

django-pure-pagination provides advanced pagination features and is fully compatible with existing code based on Django's core pagination module. (aka no need to rewrite code!)

  • 0.3.0
  • PyPI
  • Socket score

Maintainers
1

====================== django-pure-pagination

.. image:: https://travis-ci.org/hovel/django-pure-pagination.svg?branch=master :target: https://travis-ci.org/hovel/django-pure-pagination

Description

:Author: James Pacileo @ignighted <http://twitter.com/ignighted>_

:Version: 0.3.0

:Description: django-pure-pagination provides advanced pagination features and is fully compatible with existing code based on Django's core pagination module. (aka no need to rewrite code!)

:Requirements: Django 1.7+

:Contributors: juandecarrion (Juande Carrion) <https://github.com/juandecarrion>, twidi (Stéphane Angel) <https://github.com/twidi>, bebraw (Juho Vepsäläinen) <https://github.com/bebraw>, lampslave () <https://github.com/lampslave>, GeyseR (Sergey Fursov) <https://github.com/GeyseR>, zeus (Pavel Zhukov) <https://github.com/zeus>

Introduction

The django app offers advanced pagination features without forcing major code changes within an existing project.

Django-pure-pagination is based upon Django's core pagination module and is therefore compatible with the existing api.

Documentation for Django core pagination module <http://docs.djangoproject.com/en/dev/topics/pagination/>_

Features

  1. Uses same API as django.core.pagination and therefore is fully compatible with existing code.

  2. Has dynamic query string creation, which takes into consideration existing GET parameters.

  3. Out-of-the-box html rendering of the pagination

  4. Additional methods make it easier to render more advanced pagination templates.

Installation

Install package from PYPI:

::

pip install django-pure-pagination

or clone and install from repository:

::

git clone git@github.com:jamespacileo/django-pure-pagination.git
cd django-pure-pagination
python setup.py install

Add pure_pagination to INSTALLED_APPS

::

INSTALLED_APPS = (
    ...
    'pure_pagination',
)

Finally substitute from django.core.paginator import Paginator with from pure_pagination import Paginator

Settings

A few settings can be set within settings.py

::

PAGINATION_SETTINGS = {
    'PAGE_RANGE_DISPLAYED': 10,
    'MARGIN_PAGES_DISPLAYED': 2,

    'SHOW_FIRST_PAGE_WHEN_INVALID': True,
}

PAGE_RANGE_DISPLAYED is the number of pages neighbouring the current page which will be displayed (default is 10)

MARGIN_PAGES_DISPLAYED is the number of pages neighbouring the first and last page which will be displayed (default is 2)

Set SHOW_FIRST_PAGE_WHEN_INVALID to True when you want to just show first page when provided invalid page instead of 404 error

.. image:: http://i.imgur.com/LCqrt.gif

Usage example

Following is a simple example for function based views. For generic class-based views, see bellow.

view file: views.py

::

# views.py
from django.shortcuts import render_to_response

from pure_pagination import Paginator, EmptyPage, PageNotAnInteger


def index(request):

    try:
        page = request.GET.get('page', 1)
    except PageNotAnInteger:
        page = 1

    objects = ['john', 'edward', 'josh', 'frank']

    # Provide Paginator with the request object for complete querystring generation

    p = Paginator(objects, request=request)

    people = p.page(page)

    return render_to_response('index.html', {
        'people': people,
    }

template file: index.html

::

{# index.html #}
{% extends 'base.html' %}

{% block content %}

{% for person in people.object_list %}
    <div>
        First name: {{ person }}
    </div>
{% endfor %}

{# The following renders the pagination html #}
<div id="pagination">
    {{ people.render }}
</div>

{% endblock %}

Usage

There a few different way you can make use of the features introduced within django-pure-pagination.

Easiest way to render the pagination is to call the render method i.e. {{ page.render }}

Alternatively you can access the Page object low level methods yourself

Special note: page_obj and current_page both point to the page object within the template.

::

{% load i18n %}
<div class="pagination">
    {% if page_obj.has_previous %}
        <a href="?{{ page_obj.previous_page_number.querystring }}" class="prev">&lsaquo;&lsaquo; {% trans "previous" %}</a>
    {% else %}
        <span class="disabled prev">&lsaquo;&lsaquo; {% trans "previous" %}</span>
    {% endif %}
    {% for page in page_obj.pages %}
        {% if page %}
            {% ifequal page page_obj.number %}
                <span class="current page">{{ page }}</span>
            {% else %}
                <a href="?{{ page.querystring }}" class="page">{{ page }}</a>
            {% endifequal %}
        {% else %}
            ...
        {% endif %}
    {% endfor %}
    {% if page_obj.has_next %}
        <a href="?{{ page_obj.next_page_number.querystring }}" class="next">{% trans "next" %} &rsaquo;&rsaquo;</a>
    {% else %}
        <span class="disabled next">{% trans "next" %} &rsaquo;&rsaquo;</span>
    {% endif %}
</div>

Generic Class-Based Views

Documentation for Django generic class-based views on https://docs.djangoproject.com/en/dev/ref/class-based-views/

view file:

  • views.py

    ::

      # views.py
      from django.views.generic import ListView
    
      from pure_pagination.mixins import PaginationMixin
    
      from my_app.models import MyModel
    
    
      class MyModelListView(PaginationMixin, ListView):
          # Important, this tells the ListView class we are paginating
          paginate_by = 10
    
          # Replace it for your model or use the queryset attribute instead
          object = MyModel
    

template files:

Note that the Django generic-based list view will include the object page_obj in the context. More information on https://docs.djangoproject.com/en/dev/ref/generic-views/#list-detail-generic-views

  • _pagination.html

    ::

      {% load i18n %}
      <div class="pagination">
          {% if page_obj.has_previous %}
              <a href="?{{ page_obj.previous_page_number.querystring }}" class="prev">&lsaquo;&lsaquo; {% trans "previous" %}</a>
          {% else %}
              <span class="disabled prev">&lsaquo;&lsaquo; {% trans "previous" %}</span>
          {% endif %}
          {% for page in page_obj.pages %}
              {% if page %}
                  {% ifequal page page_obj.number %}
                      <span class="current page">{{ page }}</span>
                  {% else %}
                      <a href="?{{ page.querystring }}" class="page">{{ page }}</a>
                  {% endifequal %}
              {% else %}
                  ...
              {% endif %}
          {% endfor %}
          {% if page_obj.has_next %}
              <a href="?{{ page_obj.next_page_number.querystring }}" class="next">{% trans "next" %} &rsaquo;&rsaquo;</a>
          {% else %}
              <span class="disabled next">{% trans "next" %} &rsaquo;&rsaquo;</span>
          {% endif %}
      </div>
    
  • my_app/myobject_list.html

    ::

     {# my_app/myobject_list.html #}
     {% extends 'base.html' %}
    
     {% block content %}
    
     {% for object in object_list %}
         <div>
             First name: {{ object.first_name }}
         </div>
     {% endfor %}
    
     {# The following renders the pagination html #}
     {% include "_pagination.html" %}
    
     {% endblock %}
    

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