drf-url-filter 0.3.15

Django URL Filter provides a safe way to filter data via human-friendly URLs.

Django URL Filter provides a safe way to filter data via human-friendly URLs.

• Free software: MIT license

• GitHub: https://github.com/aredcomet/django-url-filter

• Documentation: http://django-url-filter.readthedocs.io/

Note

This is forked version of django-url-filter: https://github.com/miki725/django-url-filter with some required changes to use with django 4.0+ versions.

Overview

The main goal of Django URL Filter is to provide an easy URL interface for filtering data. It allows the user to safely filter by model attributes and also allows to specify the lookup type for each filter (very much like Django’s filtering system in ORM).

For example the following will retrieve all items where the id is 5 and title contains "foo":

example.com/listview/?id=5&title__contains=foo

In addition to basic lookup types, Django URL Filter allows to use more sophisticated lookups such as in or year. For example:

example.com/listview/?id__in=1,2,3&created__year=2013

Requirements

• Python 2.7, 3.x, pypy or pypy3

• Django 1.8+ (there are plans to support older Django versions)

• Django REST Framework 2 or 3 (only if you want to use DRF integration)

Installing

Easiest way to install this library is by using pip:

$ pip install django-url-filter

Usage Example

To make example short, it demonstrates Django URL Filter integration with Django REST Framework but it can be used without DRF (see below).

from url_filter.integrations.drf import DjangoFilterBackend


class UserViewSet(ModelViewSet):
    queryset = User.objects.all()
    serializer_class = UserSerializer
    filter_backends = [DjangoFilterBackend]
    filter_fields = ['username', 'email']

Alternatively filterset can be manually created and used directly to filter querysets:

from django.http import QueryDict
from url_filter.filtersets import ModelFilterSet


class UserFilterSet(ModelFilterSet):
    class Meta(object):
        model = User

query = QueryDict('email__contains=gmail&joined__gt=2015-01-01')
fs = UserFilterSet(data=query, queryset=User.objects.all())
filtered_users = fs.filter()

Above will automatically allow the use of all of the Django URL Filter features. Some possibilities:

# get user with id 5
example.com/users/?id=5

# get user with id either 5, 10 or 15
example.com/users/?id__in=5,10,15

# get user with id between 5 and 10
example.com/users/?id__range=5,10

# get user with username "foo"
example.com/users/?username=foo

# get user with username containing case insensitive "foo"
example.com/users/?username__icontains=foo

# get user where username does NOT contain "foo"
example.com/users/?username__icontains!=foo

# get user who joined in 2015 as per user profile
example.com/users/?profile__joined__year=2015

# get user who joined in between 2010 and 2015 as per user profile
example.com/users/?profile__joined__range=2010-01-01,2015-12-31

# get user who joined in after 2010 as per user profile
example.com/users/?profile__joined__gt=2010-01-01

Features

• Human-friendly URLs

  Filter querystring format looks very similar to syntax for filtering in Django ORM. Even negated filters are supported! Some examples:

  example.com/users/?email__contains=gmail&joined__gt=2015-01-01
  example.com/users/?email__contains!=gmail  # note !

• Related models

  Support related fields so that filtering can be applied to related models. For example:

  example.com/users/?profile__nickname=foo

• Decoupled filtering

  How URLs are parsed and how data is filtered is decoupled. This allows the actual filtering logic to be decoupled from Django hence filtering is possible not only with Django ORM QuerySet but any set of data can be filtered (e.g. SQLAlchemy query objects) assuming corresponding filtering backend is implemented.

• Usage-agnostic

  This library decouples filtering from any particular usage-pattern. It implements all the basic building blocks for creating filtersets but it does not assume how they will be used. To make the library easy to use, it ships with some integrations with common usage patterns like integration with Django REST Framework. This means that its easy to use in custom applications with custom requirements (which is probably most of the time!)

Available lookups:

• contains: Match when string contains given substring.

• day: Match by day of the month.

• endswith: Match when string ends with given substring.

• exact: Match exactly the value as is.

• gt: Match when value is greater then given value.

• gte: Match when value is greater or equal then given value.

• hour: Match by the hour (24 hour) value of the timestamp.

• icontains: Case insensitive match when string contains given substring.

• iendswith: Case insensitive match when string ends with given substring.

• iexact: Case insensitive match exactly the value as is.

• iin: Case insensitive match when value is any of given comma separated values.

• in: Match when value is any of given comma separated values.

• iregex: Case insensitive match string by regex pattern.

• isnull: Match when value is NULL.

• istartswith: Case insensitive match when string starts with given substring.

• lt: Match when value is less then given value.

• lte: Match when value is less or equal then given value.

• minute: Match by the minute value of the timestamp.

• month: Match by the month value of the timestamp.

• range: Match when value is within comma separated range.

• regex: Match string by regex pattern.

• second: Match by the second value of the timestamp.

• startswith: Match when string starts with given substring.

• week_day: Match by week day (1-Sunday to 7-Saturday) of the timestamp.

• year: Match by the year value of the timestamp.

History

0.3.15 (2020-02-10)

• Fixes date lookup when using Django ORM. See #92.

0.3.14 (2019-10-30)

• Using CharField for regex filters. See #90.

• SQLAlchemyFilterBackend does not join models if already join path is partially joined already.

• SQLAlchemyFilterBackend joins when selectinjoin is used.

0.3.13 (2019-07-28)

• Fixing iregex documentation in DRF coreapi integration.

0.3.12 (2019-01-24)

• Adding support for FilterSet.Meta.fields == '__all__' which is useful in DRF integration. See #39.

0.3.11 (2018-12-06)

• Not modifying queryset in Django backend if no filters were applied. See #73.

0.3.10 (2018-11-14)

• Only running distinct on queryset when one of filters is on one-to-many relation. This should help with performance. See #26.

0.3.9 (2018-11-12)

• Adding iin form field overwrite for SQLAlchemy as otherwise by default iin lookup is not validated correctly.

0.3.8 (2018-08-08)

• Fixed SQLAlchemyFilterBackend by not joining nested models when they are already eager loaded via query.options().

0.3.7 (2018-07-27)

• Added StrictModel.empty which is new default. It returns empty queryset when any filter validations fail.

• Fixed in lookup. Previously if any of the items were invalid whole filter would fail and depending on strict mode would either return all results, no results or will raise exception. Now in StrictMode.empty and StrictMode.drop any invalid items are ignored which will filter results for valid items. See #63.

• Added ability in ModelFilterSet to customize filter names by providing extra_kwargs with field source. See #66.

0.3.6 (2018-07-23)

• Added support for extra_kwargs in ModelFilterSet.Meta.

• Added CoreAPIURLFilterBackend which enables documented filters in swagger docs.

• Added iin lookup in plain and sqlalchemy backends.

• Fixing inconsistency between plain and Django week_day lookup. Now both are consistent with 1-Monday and 7-Sunday.

0.3.5 (2018-02-27)

• Django 2 support.

• Using tox-travis for travis builds.

• Fixed negated queries in Django backend. Previously negation did NOT (condition1 and condition2) vs expected NOT condition1 and NOT condition2. See #53.

0.3.4 (2017-08-17)

• Py36 compatibility by switching to enum-compat from enum34

• Improvement to README by including imports in code examples

• Defaulting SQLAlchemyModelFilterSet to use SQLAlchemyFilterBackend

• Defaulting PlainModelFilterSet to use PlainFilterBackend

• Using universal wheels for distribution

0.3.3 (2017-06-15)

• Fixed bug which did not allow to use SQLAlchemy backend fully without having django.contrib.contenttypes in installed apps. See #36.

• Improved SQLAlchemy versions compatibility.

• Added URLFilterBackend alias in DRF integration for backend to reduce confusion with DjangoFilterBackend as in url filter core backend.

0.3.2 (2017-05-19)

• Fixed plain backend to return list in Python 3 vs filter() generator which is not compatible with Django pagination since it requires len() to be implemented.

0.3.1 (2017-05-18)

• Fixed bug where default filters were used in root filtersets. As a result additional querystring parameters were validation which broke other functionality such as pagination.

0.3.0 (2017-01-26)

• Added plain objects filtering support. More in docs and GitHub issue #8.

• Added CallableFilter which allows to implement custom filters.

• Normalizing to DRF’s ValidationError when using StrictMode.Fail since filterset raises Django’s ValidationError which caused 500 status code.

• Fixes ModelFilterSet automatic introspection to ignore GenericForeignKey since they dont have form fields associated with them. See #20.

• Releasing with wheels.

0.2.0 (2015-09-12)

• Added SQLAlchemy support.

• FilterSet instances have much more useful __repr__ which shows all filters at a glance. For example:

  >>> PlaceFilterSet()
  PlaceFilterSet()
    address = Filter(form_field=CharField, lookups=ALL, default_lookup="exact", is_default=False)
    id = Filter(form_field=IntegerField, lookups=ALL, default_lookup="exact", is_default=True)
    name = Filter(form_field=CharField, lookups=ALL, default_lookup="exact", is_default=False)
    restaurant = RestaurantFilterSet()
      serves_hot_dogs = Filter(form_field=BooleanField, lookups=ALL, default_lookup="exact", is_default=False)
      serves_pizza = Filter(form_field=BooleanField, lookups=ALL, default_lookup="exact", is_default=False)
      waiter = WaiterFilterSet()
        id = Filter(form_field=IntegerField, lookups=ALL, default_lookup="exact", is_default=True)
        name = Filter(form_field=CharField, lookups=ALL, default_lookup="exact", is_default=False)

0.1.1 (2015-09-06)

• Fixed installation issue where not all subpackages were installed.

0.1.0 (2015-08-30)

• First release on PyPI.

Credits

Development Lead

• Miroslav Shubernetskiy - https://github.com/miki725

Contributors

• João Neto - https://github.com/netjinho

• Jorik Kraaikamp - https://github.com/JostCrow

• Håken Lid - https://github.com/haakenlid

• Ryan O’Hara - https://github.com/ryan-copperleaf

• webrunners - https://github.com/webrunners

• Simone Pellizzari - https://github.com/simone6021

• Jonathon Farzanfar - https://github.com/pctSW1

License

The MIT License (MIT)

Copyright (c) 2015, Miroslav Shubernetskiy

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