django-rest-framework-datatables-filter 0.0.2
Seamless integration between Django REST framework and Datatables (https://datatables.net)
License: MIT

django-rest-framework-datatables
================================

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Overview
--------

This package provides seamless integration between `Django REST framework <https://www.django-rest-framework.org>`_ and `Datatables <https://datatables.net>`_.

Install django-rest-framework-datatables, call your API with ``?format=datatables`` and it will return a JSON structure that is fully compatible with what Datatables expects.
It handles searching, filtering, ordering and most usecases you can imagine with Datatables.

The great benefit of django-rest-framework-datatables is that you don't have to create a different API, your API still work exactly the same unless you specify the ``datatables`` format on your request.

Full documentation is available on `Read the Docs <http://django-rest-framework-datatables.readthedocs.io/en/latest/>`_ !

Requirements
------------

-  Python (2.7, 3.4, 3.5, 3.6, 3.7, 3.8)
-  Django (1.9, 1.10, 1.11, 2.0, 2.1, 2.2, 3.0)
-  Django REST Framework (3.5, 3.6, 3.7, 3.8, 3.9, 3.10, 3.11)

Note: Django 3.0 is only supported with Django REST Framework 3.11 or superior and DRF-datatables version 0.5.1 or superior.

Quickstart
----------

Installation
~~~~~~~~~~~~

Just use ``pip``:

.. code:: bash

    $ pip install djangorestframework-datatables

Configuration
~~~~~~~~~~~~~

To enable Datatables support in your project, add ``'rest_framework_datatables'`` to your ``INSTALLED_APPS``, and modify your ``REST_FRAMEWORK`` settings like this:

.. code:: python

    REST_FRAMEWORK = {
        'DEFAULT_RENDERER_CLASSES': (
            'rest_framework.renderers.JSONRenderer',
            'rest_framework.renderers.BrowsableAPIRenderer',
            'rest_framework_datatables.renderers.DatatablesRenderer',
        ),
        'DEFAULT_FILTER_BACKENDS': (
            'rest_framework_datatables.filters.DatatablesFilterBackend',
        ),
        'DEFAULT_PAGINATION_CLASS': 'rest_framework_datatables.pagination.DatatablesPageNumberPagination',
        'PAGE_SIZE': 50,
    }

And that's it !
~~~~~~~~~~~~~~~

Your API is now fully compatible with Datatables and will provide searching, filtering, ordering and pagination without any modification of your API code !

Always Serialize Specific Fields
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Sometimes you may want to expose fields regardless of datatable's url parameters. You can do so by setting the ``datatables_always_serialize`` tuple like so:

.. code:: python

    class ArtistSerializer(serializers.ModelSerializer):
        id = serializers.IntegerField(read_only=True)
    
        class Meta:
            model = Artist
            fields = (
                'id', 'name',
            )
            datatables_always_serialize = ('id',)

An example of Datatable
~~~~~~~~~~~~~~~~~~~~~~~

.. code:: html

    <!doctype html>
    <html lang="en">
    <head>
      <meta charset="utf-8">
      <title>Rolling Stone Top 500 albums of all time</title>
      <link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.0.0/css/bootstrap.css">
      <link rel="stylesheet" href="//cdn.datatables.net/1.10.16/css/dataTables.bootstrap4.min.css">
    </head>
    
    <body>
      <div class="container">
        <div class="row">
          <div class="col-sm-12">
            <table id="albums" class="table table-striped table-bordered" style="width:100%">
              <thead>
                <tr>
                  <th>Rank</th>
                  <th>Artist</th>
                  <th>Album name</th>
                  <th>Year</th>
                  <th>Genres</th>
                </tr>
              </thead>
            </table>
          </div>
        </div>
      </div>
      <script src="//code.jquery.com/jquery-1.12.4.js"></script>
      <script src="//cdn.datatables.net/1.10.16/js/jquery.dataTables.min.js"></script>
      <script src="//cdn.datatables.net/1.10.16/js/dataTables.bootstrap4.min.js"></script>
      <script>
          $(document).ready(function() {
              var table = $('#albums').DataTable({
                  "serverSide": true,
                  "ajax": "/api/albums/?format=datatables",
                  "columns": [
                      {"data": "rank", "searchable": false},
                      {"data": "artist_name", "name": "artist.name"},
                      {"data": "name"},
                      {"data": "year"},
                      {"data": "genres", "name": "genres.name", "sortable": false},
                  ]
              });
          });
      </script>
    </body>
    </html>

Example project
---------------

To play with the example project, just clone the repository and run the dev server.

.. code:: bash

    $ git clone https://github.com/izimobil/django-rest-framework-datatables.git
    $ cd django-rest-framework-datatables
    $ pip install -r requirements-dev.txt
    $ python example/manage.py runserver
    $ firefox http://127.0.0.1:8000

Testing
-------

Install development requirements.

.. code:: bash

    $ pip install -r requirements-dev.txt

Run the tests.

.. code:: bash

    $ python example/manage.py test

You can also use the excellent `tox`_ testing tool to run the tests
against all supported versions of Python and Django. Install tox
globally, and then simply run:

.. code:: bash

    $ tox

If you want to check the coverage, use:

.. code:: bash

    $ coverage run ./example/manage.py test
    $ coverage report -m

Documentation
-------------

The documentation is available online on `Read the Docs <http://django-rest-framework-datatables.readthedocs.io/en/latest/>`_.

To build the documentation, youâ€™ll need to install ``sphinx``.

.. code:: bash

    $ pip install -r requirements-docs.txt

To build the documentation:

.. code:: bash

    $ cd docs
    $ make clean && make build


.. _tox: http://tox.readthedocs.org/en/latest/

.. |build-status-image| image:: https://secure.travis-ci.org/izimobil/django-rest-framework-datatables.svg?branch=master
   :target: http://travis-ci.org/izimobil/django-rest-framework-datatables?branch=master
   :alt: Travis build

.. |codecov-image| image:: https://codecov.io/gh/izimobil/django-rest-framework-datatables/branch/master/graph/badge.svg
  :target: https://codecov.io/gh/izimobil/django-rest-framework-datatables

.. |pypi-version| image:: https://img.shields.io/pypi/v/djangorestframework-datatables.svg
   :target: https://pypi.python.org/pypi/djangorestframework-datatables
   :alt: Pypi version

.. |documentation-status-image| image:: https://readthedocs.org/projects/django-rest-framework-datatables/badge/?version=latest
   :target: http://django-rest-framework-datatables.readthedocs.io/en/latest/?badge=latest
   :alt: Documentation Status

.. |py-versions| image:: https://img.shields.io/pypi/pyversions/djangorestframework-datatables.svg
   :target: https://img.shields.io/pypi/pyversions/djangorestframework-datatables.svg
   :alt: Python versions

.. |dj-versions| image:: https://img.shields.io/pypi/djversions/djangorestframework-datatables.svg
   :target: https://img.shields.io/pypi/djversions/djangorestframework-datatables.svg
   :alt: Django versions


Changelog
=========

Version 0.5.2 (2020-04-10):
---------------------------

- Added support for POST requests from datatables
- Avoid extra count queries
- Handle dummy columns gracefully

Version 0.5.1 (2020-01-13):
---------------------------

- Added support for Django 3.0
- Added support for disabling pagination when the client requests it with length=-1 parameter
- Added optional column sorting to handle ties
- Minor code fixes

Version 0.5.0 (2019-03-31):
---------------------------

- Fixed total number of rows when view is using multiple filter back-ends
- New meta option ``datatables_extra_json`` on view for adding key/value pairs to rendered JSON
- Minor docs fixes

Version 0.4.1 (2018-11-16):
---------------------------

- Added support for Django 2.1 and DRF 3.9
- Updated README

Version 0.4.0 (2018-06-22):
---------------------------

- Added top level filtering for nested serializers
- Added multiple field filtering
- Added a ?keep= parameter that allows to bypass the filtering of unused fields
- Better detection of the requested format
- Fixed typo in Queryset.count() method name


Version 0.3.0 (2018-05-11):
---------------------------

- Added a serializer Meta option ``datatables_always_serialize`` that allows to specify a tuple of fields that should always be serialized in the response, regardless of what fields are requested in the Datatables request
- Optimize filters
- Use AND operator for column filtering instead of OR, to be consistant with the client-side behavior of Datatables

Version 0.2.1 (2018-04-11):
---------------------------

- This version replaces the 0.2.0 who was broken (bad setup.py)

Version 0.2.0 (2018-04-11):
---------------------------

- Added full documentation
- Removed serializers, they are no longer necessary, filtering of columns is made by the renderer

Version 0.1.0 (2018-04-10):
---------------------------

Initial release.