Remove DjangoFilterBackend and associated tests

rest_framework/compat.py

@@ -182,13 +182,6 @@ except ImportError:
     coreschema = None
 
 
-# django-filter is optional
-try:
-    import django_filters
-except ImportError:
-    django_filters = None
-
-
 # django-crispy-forms is optional
 try:
     import crispy_forms

rest_framework/filters.py

@@ -5,7 +5,6 @@ returned by list views.
 from __future__ import unicode_literals
 
 import operator
-import warnings
 from functools import reduce
 
 from django.core.exceptions import ImproperlyConfigured
@@ -18,7 +17,7 @@ from django.utils.encoding import force_text
 from django.utils.translation import ugettext_lazy as _
 
 from rest_framework.compat import (
-    coreapi, coreschema, distinct, django_filters, guardian, template_render
+    coreapi, coreschema, distinct, guardian, template_render
 )
 from rest_framework.settings import api_settings
 
@@ -40,44 +39,6 @@ class BaseFilterBackend(object):
         return []
 
 
-if django_filters:
-    from django_filters.rest_framework.filterset import FilterSet as DFFilterSet
-
-    class FilterSet(DFFilterSet):
-        def __init__(self, *args, **kwargs):
-            warnings.warn(
-                "The built in 'rest_framework.filters.FilterSet' is deprecated. "
-                "You should use 'django_filters.rest_framework.FilterSet' instead.",
-                DeprecationWarning, stacklevel=2
-            )
-            return super(FilterSet, self).__init__(*args, **kwargs)
-
-    DFBase = django_filters.rest_framework.DjangoFilterBackend
-
-else:
-    def FilterSet():
-        assert False, 'django-filter must be installed to use the `FilterSet` class'
-
-    DFBase = BaseFilterBackend
-
-
-class DjangoFilterBackend(DFBase):
-    """
-    A filter backend that uses django-filter.
-    """
-    def __new__(cls, *args, **kwargs):
-        assert django_filters, 'Using DjangoFilterBackend, but django-filter is not installed'
-        assert django_filters.VERSION >= (0, 15, 3), 'django-filter 0.15.3 and above is required'
-
-        warnings.warn(
-            "The built in 'rest_framework.filters.DjangoFilterBackend' is deprecated. "
-            "You should use 'django_filters.rest_framework.DjangoFilterBackend' instead.",
-            DeprecationWarning, stacklevel=2
-        )
-
-        return super(DjangoFilterBackend, cls).__new__(cls, *args, **kwargs)
-
-
 class SearchFilter(BaseFilterBackend):
     # The URL query parameter used for the search.
     search_param = api_settings.SEARCH_PARAM

tests/models.py

@@ -24,15 +24,6 @@ class BasicModel(RESTFrameworkModel):
     )
 
 
-class BaseFilterableItem(RESTFrameworkModel):
-    text = models.CharField(max_length=100)
-
-
-class FilterableItem(BaseFilterableItem):
-    decimal = models.DecimalField(max_digits=4, decimal_places=2)
-    date = models.DateField()
-
-
 # Models for relations tests
 # ManyToMany
 class ManyToManyTarget(RESTFrameworkModel):