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https://github.com/carltongibson/django-filter

A generic system for filtering Django QuerySets based on user selections
https://github.com/carltongibson/django-filter

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A generic system for filtering Django QuerySets based on user selections

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README 

        
Django Filter

=============



Django-filter is a reusable Django application allowing users to declaratively

add dynamic ``QuerySet`` filtering from URL parameters.



Full documentation on `read the docs`_.



.. image:: https://raw.githubusercontent.com/carltongibson/django-filter/python-coverage-comment-action-data/badge.svg

    :target: https://github.com/carltongibson/django-filter/tree/python-coverage-comment-action-data



.. image:: https://badge.fury.io/py/django-filter.svg

    :target: http://badge.fury.io/py/django-filter



Versioning and stability policy

-------------------------------



Django-Filter is a mature and stable package. It uses a two-part CalVer

versioning scheme, such as ``21.1``. The first number is the year. The second

is the release number within that year.



On an on-going basis, Django-Filter aims to support all current Django

versions, the matching current Python versions, and the latest version of

Django REST Framework.



Please see:



* `Status of supported Python versions `_

* `List of supported Django versions `_



Support for Python and Django versions will be dropped when they reach

end-of-life. Support for Python versions will be dropped when they reach

end-of-life, even when still supported by a current version of Django.



Other breaking changes are rare. Where required, every effort will be made to

apply a "Year plus two" deprecation period. For example, a change initially

introduced in ``23.x`` would offer a fallback where feasible and finally be

removed in ``25.1``. Where fallbacks are not feasible, breaking changes without

deprecation will be called out in the release notes.



Installation

------------



Install using pip:



.. code-block:: sh



    pip install django-filter



Then add ``'django_filters'`` to your ``INSTALLED_APPS``.



.. code-block:: python



    INSTALLED_APPS = [

        ...

        'django_filters',

    ]



Usage

-----



Django-filter can be used for generating interfaces similar to the Django

admin's ``list_filter`` interface.  It has an API very similar to Django's

``ModelForms``.  For example, if you had a Product model you could have a

filterset for it with the code:



.. code-block:: python



    import django_filters



    class ProductFilter(django_filters.FilterSet):

        class Meta:

            model = Product

            fields = ['name', 'price', 'manufacturer']



And then in your view you could do:



.. code-block:: python



    def product_list(request):

        filter = ProductFilter(request.GET, queryset=Product.objects.all())

        return render(request, 'my_app/template.html', {'filter': filter})



Usage with Django REST Framework

--------------------------------



Django-filter provides a custom ``FilterSet`` and filter backend for use with

Django REST Framework.



To use this adjust your import to use

``django_filters.rest_framework.FilterSet``.



.. code-block:: python



    from django_filters import rest_framework as filters



    class ProductFilter(filters.FilterSet):

        class Meta:

            model = Product

            fields = ('category', 'in_stock')



For more details see the `DRF integration docs`_.



Support

-------



If you need help you can start a `discussion`_. For commercial support, please

`contact Carlton Gibson via his website `_.



.. _`discussion`: https://github.com/carltongibson/django-filter/discussions

.. _`read the docs`: https://django-filter.readthedocs.io/en/main/

.. _`DRF integration docs`: https://django-filter.readthedocs.io/en/stable/guide/rest_framework.html