Remove old django checks from tests and compat

Remove skipping of tests for Django<1.8. Remove several functions from compat.py not needed for Django>=1.8

Author: karambir

rest_framework/compat.py

@@ -86,18 +86,6 @@ def distinct(queryset, base):
     crispy_forms = None
 
 
-if django.VERSION >= (1, 6):
-    def clean_manytomany_helptext(text):
-        return text
-else:
-    # Up to version 1.5 many to many fields automatically suffix
-    # the `help_text` attribute with hardcoded text.
-    def clean_manytomany_helptext(text):
-        if text.endswith(' Hold down "Control", or "Command" on a Mac, to select more than one.'):
-            text = text[:-69]
-        return text
-
-
 # Django-guardian is optional. Import only if guardian is in INSTALLED_APPS
 # Fixes (#1712). We keep the try/except for the test suite.
 guardian = None
@@ -109,41 +97,6 @@ def clean_manytomany_helptext(text):
     pass
 
 
-# MinValueValidator, MaxValueValidator et al. only accept `message` in 1.8+
-if django.VERSION >= (1, 8):
-    from django.core.validators import MinValueValidator, MaxValueValidator
-    from django.core.validators import MinLengthValidator, MaxLengthValidator
-else:
-    from django.core.validators import MinValueValidator as DjangoMinValueValidator
-    from django.core.validators import MaxValueValidator as DjangoMaxValueValidator
-    from django.core.validators import MinLengthValidator as DjangoMinLengthValidator
-    from django.core.validators import MaxLengthValidator as DjangoMaxLengthValidator
-
-
-    class MinValueValidator(DjangoMinValueValidator):
-        def __init__(self, *args, **kwargs):
-            self.message = kwargs.pop('message', self.message)
-            super(MinValueValidator, self).__init__(*args, **kwargs)
-
-
-    class MaxValueValidator(DjangoMaxValueValidator):
-        def __init__(self, *args, **kwargs):
-            self.message = kwargs.pop('message', self.message)
-            super(MaxValueValidator, self).__init__(*args, **kwargs)
-
-
-    class MinLengthValidator(DjangoMinLengthValidator):
-        def __init__(self, *args, **kwargs):
-            self.message = kwargs.pop('message', self.message)
-            super(MinLengthValidator, self).__init__(*args, **kwargs)
-
-
-    class MaxLengthValidator(DjangoMaxLengthValidator):
-        def __init__(self, *args, **kwargs):
-            self.message = kwargs.pop('message', self.message)
-            super(MaxLengthValidator, self).__init__(*args, **kwargs)
-
-
 # PATCH method is not implemented by Django
 if 'patch' not in View.http_method_names:
     View.http_method_names = View.http_method_names + ['patch']
@@ -188,13 +141,6 @@ def apply_markdown(text):
     LONG_SEPARATORS = (b', ', b': ')
     INDENT_SEPARATORS = (b',', b': ')
 
-if django.VERSION >= (1, 8):
-    from django.db.models import DurationField
-    from django.utils.dateparse import parse_duration
-    from django.utils.duration import duration_string
-else:
-    DurationField = duration_string = parse_duration = None
-
 try:
     # DecimalValidator is unavailable in Django < 1.9
     from django.core.validators import DecimalValidator
@@ -223,14 +169,14 @@ def template_render(template, context=None, request=None):
     """
     Passing Context or RequestContext to Template.render is deprecated in 1.9+,
     see https://github.com/django/django/pull/3883 and
-    https://github.com/django/django/blob/1.9rc1/django/template/backends/django.py#L82-L84
+    https://github.com/django/django/blob/1.9/django/template/backends/django.py#L82-L84
 
     :param template: Template instance
     :param context: dict
     :param request: Request instance
     :return: rendered template as SafeText instance
     """
-    if django.VERSION < (1, 8) or isinstance(template, Template):
+    if isinstance(template, Template):
         if request:
             context = RequestContext(request, context)
         else:
@@ -239,32 +185,3 @@ def template_render(template, context=None, request=None):
     # backends template, e.g. django.template.backends.django.Template
     else:
         return template.render(context, request=request)
-
-
-def get_all_related_objects(opts):
-    """
-    Django 1.8 changed meta api, see
-    https://docs.djangoproject.com/en/1.8/ref/models/meta/#migrating-old-meta-api
-    https://code.djangoproject.com/ticket/12663
-    https://github.com/django/django/pull/3848
-
-    :param opts: Options instance
-    :return: list of relations except many-to-many ones
-    """
-    if django.VERSION < (1, 8):
-        return opts.get_all_related_objects()
-    else:
-        return [r for r in opts.related_objects if not r.field.many_to_many]
-
-
-def get_all_related_many_to_many_objects(opts):
-    """
-    Django 1.8 changed meta api, see docstr in compat.get_all_related_objects()
-
-    :param opts: Options instance
-    :return: list of many-to-many relations
-    """
-    if django.VERSION < (1, 8):
-        return opts.get_all_related_many_to_many_objects()
-    else:
-        return [r for r in opts.related_objects if r.field.many_to_many]

rest_framework/fields.py

@@ -14,23 +14,23 @@
 from django.core.exceptions import ValidationError as DjangoValidationError
 from django.core.exceptions import ObjectDoesNotExist
 from django.core.validators import (
-    EmailValidator, RegexValidator, URLValidator, ip_address_validators
+    EmailValidator, MaxLengthValidator, MaxValueValidator, MinLengthValidator,
+    MinValueValidator, RegexValidator, URLValidator, ip_address_validators
 )
 from django.forms import FilePathField as DjangoFilePathField
 from django.forms import ImageField as DjangoImageField
 from django.utils import six, timezone
-from django.utils.dateparse import parse_date, parse_datetime, parse_time
+from django.utils.dateparse import (
+    parse_date, parse_datetime, parse_duration, parse_time
+)
+from django.utils.duration import duration_string
 from django.utils.encoding import is_protected_type, smart_text
 from django.utils.functional import cached_property
 from django.utils.ipv6 import clean_ipv6_address
 from django.utils.translation import ugettext_lazy as _
 
 from rest_framework import ISO_8601
-from rest_framework.compat import (
-    MaxLengthValidator, MaxValueValidator, MinLengthValidator,
-    MinValueValidator, duration_string, parse_duration, unicode_repr,
-    unicode_to_repr
-)
+from rest_framework.compat import unicode_repr, unicode_to_repr
 from rest_framework.exceptions import ValidationError
 from rest_framework.settings import api_settings
 from rest_framework.utils import html, humanize_datetime, representation
@@ -1215,12 +1215,6 @@ class DurationField(Field):
         'invalid': _('Duration has wrong format. Use one of these formats instead: {format}.'),
     }
 
-    def __init__(self, *args, **kwargs):
-        if parse_duration is None:
-            raise NotImplementedError(
-                'DurationField not supported for django versions prior to 1.8')
-        return super(DurationField, self).__init__(*args, **kwargs)
-
     def to_internal_value(self, value):
         if isinstance(value, datetime.timedelta):
             return value

rest_framework/renderers.py

@@ -11,7 +11,6 @@
 import json
 from collections import OrderedDict
 
-import django
 from django import forms
 from django.core.exceptions import ImproperlyConfigured
 from django.core.paginator import Page
@@ -773,7 +772,7 @@ class MultiPartRenderer(BaseRenderer):
     media_type = 'multipart/form-data; boundary=BoUnDaRyStRiNg'
     format = 'multipart'
     charset = 'utf-8'
-    BOUNDARY = 'BoUnDaRyStRiNg' if django.VERSION >= (1, 5) else b'BoUnDaRyStRiNg'
+    BOUNDARY = 'BoUnDaRyStRiNg'
 
     def render(self, data, accepted_media_type=None, renderer_context=None):
         if hasattr(data, 'items'):

rest_framework/serializers.py

@@ -15,12 +15,12 @@
 import warnings
 
 from django.db import models
+from django.db.models import DurationField as ModelDurationField
 from django.db.models.fields import Field as DjangoModelField
 from django.db.models.fields import FieldDoesNotExist
 from django.utils.functional import cached_property
 from django.utils.translation import ugettext_lazy as _
 
-from rest_framework.compat import DurationField as ModelDurationField
 from rest_framework.compat import JSONField as ModelJSONField
 from rest_framework.compat import postgres_fields, unicode_to_repr
 from rest_framework.utils import model_meta

rest_framework/test.py

@@ -4,7 +4,6 @@
 # to make it harder for the user to import the wrong thing without realizing.
 from __future__ import unicode_literals
 
-import django
 from django.conf import settings
 from django.test import testcases
 from django.test.client import Client as DjangoClient
@@ -223,9 +222,9 @@ class APITestCase(testcases.TestCase):
     client_class = APIClient
 
 
-if django.VERSION >= (1, 4):
-    class APISimpleTestCase(testcases.SimpleTestCase):
-        client_class = APIClient
+class APISimpleTestCase(testcases.SimpleTestCase):
+    client_class = APIClient
+
 
-    class APILiveServerTestCase(testcases.LiveServerTestCase):
-        client_class = APIClient
+class APILiveServerTestCase(testcases.LiveServerTestCase):
+    client_class = APIClient

rest_framework/utils/model_meta.py

@@ -13,10 +13,6 @@
 from django.db import models
 from django.utils import six
 
-from rest_framework.compat import (
-    get_all_related_many_to_many_objects, get_all_related_objects
-)
-
 FieldInfo = namedtuple('FieldResult', [
     'pk',  # Model field instance
     'fields',  # Dict of field name -> model field instance
@@ -138,7 +134,8 @@ def _get_reverse_relationships(opts):
     # See: https://code.djangoproject.com/ticket/24208
 
     reverse_relations = OrderedDict()
-    for relation in get_all_related_objects(opts):
+    all_related_objects = [r for r in opts.related_objects if not r.field.many_to_many]
+    for relation in all_related_objects:
         accessor_name = relation.get_accessor_name()
         related = getattr(relation, 'related_model', relation.model)
         reverse_relations[accessor_name] = RelationInfo(
@@ -150,7 +147,8 @@ def _get_reverse_relationships(opts):
         )
 
     # Deal with reverse many-to-many relationships.
-    for relation in get_all_related_many_to_many_objects(opts):
+    all_related_many_to_many_objects = [r for r in opts.related_objects if r.field.many_to_many]
+    for relation in all_related_many_to_many_objects:
         accessor_name = relation.get_accessor_name()
         related = getattr(relation, 'related_model', relation.model)
         reverse_relations[accessor_name] = RelationInfo(

tests/test_fields.py

@@ -3,7 +3,6 @@
 import uuid
 from decimal import Decimal
 
-import django
 import pytest
 from django.http import QueryDict
 from django.utils import six, timezone
@@ -951,7 +950,7 @@ class TestDateTimeField(FieldValues):
         datetime.datetime(2001, 1, 1, 13, 00): datetime.datetime(2001, 1, 1, 13, 00, tzinfo=timezone.UTC()),
         datetime.datetime(2001, 1, 1, 13, 00, tzinfo=timezone.UTC()): datetime.datetime(2001, 1, 1, 13, 00, tzinfo=timezone.UTC()),
         # Django 1.4 does not support timezone string parsing.
-        '2001-01-01T14:00+01:00' if (django.VERSION > (1, 4)) else '2001-01-01T13:00Z': datetime.datetime(2001, 1, 1, 13, 00, tzinfo=timezone.UTC())
+        '2001-01-01T13:00Z': datetime.datetime(2001, 1, 1, 13, 00, tzinfo=timezone.UTC())
     }
     invalid_inputs = {
         'abc': ['Datetime has wrong format. Use one of these formats instead: YYYY-MM-DDThh:mm[:ss[.uuuuuu]][+HH:MM|-HH:MM|Z].'],
@@ -1077,8 +1076,6 @@ class TestNoOutputFormatTimeField(FieldValues):
     field = serializers.TimeField(format=None)
 
 
-@pytest.mark.skipif(django.VERSION < (1, 8),
-                    reason='DurationField is only available for django1.8+')
 class TestDurationField(FieldValues):
     """
     Valid and invalid values for `DurationField`.
@@ -1097,8 +1094,7 @@ class TestDurationField(FieldValues):
     outputs = {
         datetime.timedelta(days=3, hours=8, minutes=32, seconds=1, microseconds=123): '3 08:32:01.000123',
     }
-    if django.VERSION >= (1, 8):
-        field = serializers.DurationField()
+    field = serializers.DurationField()
 
 
 # Choice types...

tests/test_generics.py

@@ -1,6 +1,5 @@
 from __future__ import unicode_literals
 
-import django
 import pytest
 from django.db import models
 from django.shortcuts import get_object_or_404
@@ -158,7 +157,7 @@ def test_post_error_root_view(self):
         self.assertIn(expected_error, response.rendered_content.decode('utf-8'))
 
 
-EXPECTED_QUERIES_FOR_PUT = 3 if django.VERSION < (1, 6) else 2
+EXPECTED_QUERIES_FOR_PUT = 2
 
 
 class TestInstanceView(TestCase):

tests/test_model_serializer.py

@@ -10,18 +10,16 @@
 import decimal
 from collections import OrderedDict
 
-import django
-import pytest
 from django.core.exceptions import ImproperlyConfigured
 from django.core.validators import (
     MaxValueValidator, MinLengthValidator, MinValueValidator
 )
 from django.db import models
+from django.db.models import DurationField as ModelDurationField
 from django.test import TestCase
 from django.utils import six
 
 from rest_framework import serializers
-from rest_framework.compat import DurationField as ModelDurationField
 from rest_framework.compat import unicode_repr
 
 
@@ -341,8 +339,6 @@ class Meta:
         assert implicit.data == explicit.data
 
 
-@pytest.mark.skipif(django.VERSION < (1, 8),
-                    reason='DurationField is only available for django1.8+')
 class TestDurationFieldMapping(TestCase):
     def test_duration_field(self):
         class DurationFieldModel(models.Model):

tests/test_request.py

@@ -3,8 +3,6 @@
 """
 from __future__ import unicode_literals
 
-import django
-import pytest
 from django.conf.urls import url
 from django.contrib.auth import authenticate, login, logout
 from django.contrib.auth.models import User
@@ -201,8 +199,6 @@ def test_auth_can_be_set(self):
         self.assertEqual(request.auth, 'DUMMY')
 
 
-@pytest.mark.skipif(django.VERSION < (1, 7),
-                    reason='secure argument is only available for django1.7+')
 class TestSecure(TestCase):
 
     def test_default_secure_false(self):