From 01a1f67e78bb61b02a07cad361bbfe7a26ba2757 Mon Sep 17 00:00:00 2001
From: Ryan P Kilby <rpkilby@ncsu.edu>
Date: Wed, 18 Oct 2017 03:27:45 -0400
Subject: [PATCH] Remove 'Meta.together' option

---
 django_filters/filterset.py | 36 +---------------------
 tests/test_filterset.py     | 61 -------------------------------------
 2 files changed, 1 insertion(+), 96 deletions(-)

diff --git a/django_filters/filterset.py b/django_filters/filterset.py
index 49f8f52fe..da100952e 100644
--- a/django_filters/filterset.py
+++ b/django_filters/filterset.py
@@ -11,7 +11,7 @@
 
 from .compat import remote_field, remote_queryset
 from .conf import settings
-from .constants import ALL_FIELDS, EMPTY_VALUES, STRICTNESS
+from .constants import ALL_FIELDS, STRICTNESS
 from .filters import (
     BaseInFilter,
     BaseRangeFilter,
@@ -29,7 +29,6 @@
     UUIDFilter
 )
 from .utils import (
-    deprecate,
     get_all_model_fields,
     get_model_field,
     resolve_field,
@@ -37,33 +36,6 @@
 )
 
 
-def _together_valid(form, fieldset):
-    field_presence = [
-        form.cleaned_data.get(field) not in EMPTY_VALUES
-        for field in fieldset
-    ]
-
-    if any(field_presence):
-        return all(field_presence)
-    return True
-
-
-def get_full_clean_override(together):
-    # coerce together to list of pairs
-    if isinstance(together[0], (six.string_types)):
-        together = [together]
-
-    def full_clean(form):
-        super(form.__class__, form).full_clean()
-        message = 'Following fields must be together: %s'
-
-        for each in together:
-            if not _together_valid(form, each):
-                return form.add_error(None, message % ','.join(each))
-
-    return full_clean
-
-
 class FilterSetOptions(object):
     def __init__(self, options=None):
         self.model = getattr(options, 'model', None)
@@ -76,10 +48,6 @@ def __init__(self, options=None):
 
         self.form = getattr(options, 'form', forms.Form)
 
-        if hasattr(options, 'together'):
-            deprecate('The `Meta.together` option has been deprecated in favor of overriding `Form.clean`.', 1)
-        self.together = getattr(options, 'together', None)
-
 
 class FilterSetMetaclass(type):
     def __new__(cls, name, bases, attrs):
@@ -232,8 +200,6 @@ def form(self):
 
             Form = type(str('%sForm' % self.__class__.__name__),
                         (self._meta.form,), fields)
-            if self._meta.together:
-                Form.full_clean = get_full_clean_override(self._meta.together)
             if self.is_bound:
                 self._form = Form(self.data, prefix=self.form_prefix)
             else:
diff --git a/tests/test_filterset.py b/tests/test_filterset.py
index 045eaed69..976a205a9 100644
--- a/tests/test_filterset.py
+++ b/tests/test_filterset.py
@@ -681,67 +681,6 @@ class Meta:
         self.assertEqual(F(strict=False).strict, STRICTNESS.IGNORE)
 
 
-class FilterSetTogetherTests(TestCase):
-
-    def setUp(self):
-        self.alex = User.objects.create(username='alex', status=1)
-        self.jacob = User.objects.create(username='jacob', status=2)
-        self.qs = User.objects.all().order_by('id')
-
-    def test_fields_set(self):
-        class F(FilterSet):
-            class Meta:
-                model = User
-                fields = ['username', 'status', 'is_active', 'first_name']
-                together = [
-                    ('username', 'status'),
-                    ('first_name', 'is_active'),
-                ]
-                strict = STRICTNESS.RAISE_VALIDATION_ERROR
-
-        f = F({}, queryset=self.qs)
-        self.assertEqual(f.qs.count(), 2)
-
-        f = F({'username': 'alex'}, queryset=self.qs)
-        with self.assertRaises(ValidationError):
-            f.qs.count()
-
-        f = F({'username': 'alex', 'status': 1}, queryset=self.qs)
-        self.assertEqual(f.qs.count(), 1)
-        self.assertQuerysetEqual(f.qs, [self.alex.pk], lambda o: o.pk)
-
-    def test_single_fields_set(self):
-        class F(FilterSet):
-            class Meta:
-                model = User
-                fields = ['username', 'status']
-                together = ['username', 'status']
-                strict = STRICTNESS.RAISE_VALIDATION_ERROR
-
-        f = F({}, queryset=self.qs)
-        self.assertEqual(f.qs.count(), 2)
-
-        f = F({'username': 'alex'}, queryset=self.qs)
-        with self.assertRaises(ValidationError):
-            f.qs.count()
-
-        f = F({'username': 'alex', 'status': 1}, queryset=self.qs)
-        self.assertEqual(f.qs.count(), 1)
-        self.assertQuerysetEqual(f.qs, [self.alex.pk], lambda o: o.pk)
-
-    def test_empty_values(self):
-        class F(FilterSet):
-            class Meta:
-                model = User
-                fields = ['username', 'status']
-                together = ['username', 'status']
-
-        f = F({'username': '', 'status': ''}, queryset=self.qs)
-        self.assertEqual(f.qs.count(), 2)
-        f = F({'username': 'alex', 'status': ''}, queryset=self.qs)
-        self.assertEqual(f.qs.count(), 0)
-
-
 # test filter.method here, as it depends on its parent FilterSet
 class FilterMethodTests(TestCase):