Add SEARCH_PARAM and ORDERING_PARAM to settings

Fixes #1434

docs/api-guide/filtering.md

@@ -264,13 +264,17 @@ For example:
 
     search_fields = ('=username', '=email')
 
+By default, the search parameter is named `'search`', but this may be overridden with the `SEARCH_PARAM` setting.
+
 For more details, see the [Django documentation][search-django-admin].
 
 ---
 
 ## OrderingFilter
 
-The `OrderingFilter` class supports simple query parameter controlled ordering of results.  To specify the result order, set a query parameter named `'ordering'` to the required field name.  For example:
+The `OrderingFilter` class supports simple query parameter controlled ordering of results.  By default, the query parameter is named `'ordering'`, but this may by overridden with the `ORDERING_PARAM` setting.
+
+For example, to order users by username:
 
     http://example.com/api/users?ordering=username
 

docs/api-guide/settings.md

@@ -158,6 +158,18 @@ A client request like the following would return a paginated list of up to 100 i
 
 Default: `None`
 
+### SEARCH_PARAM
+
+The name of a query paramater, which can be used to specify the search term used by `SearchFilter`.
+
+Default: `search`
+
+#### ORDERING_PARAM
+
+The name of a query paramater, which can be used to specify the ordering of results returned by `OrderingFilter`.
+
+Default: `ordering`
+
 ---
 
 ## Authentication settings

rest_framework/filters.py

@@ -6,6 +6,7 @@ from __future__ import unicode_literals
 from django.core.exceptions import ImproperlyConfigured
 from django.db import models
 from rest_framework.compat import django_filters, six, guardian, get_model_name
+from rest_framework.settings import api_settings
 from functools import reduce
 import operator
 
@@ -69,7 +70,8 @@ class DjangoFilterBackend(BaseFilterBackend):
 
 
 class SearchFilter(BaseFilterBackend):
-    search_param = 'search'  # The URL query parameter used for the search.
+    # The URL query parameter used for the search.
+    search_param = api_settings.SEARCH_PARAM
 
     def get_search_terms(self, request):
         """
@@ -107,7 +109,8 @@ class SearchFilter(BaseFilterBackend):
 
 
 class OrderingFilter(BaseFilterBackend):
-    ordering_param = 'ordering'  # The URL query parameter used for the ordering.
+    # The URL query parameter used for the ordering.
+    ordering_param = api_settings.ORDERING_PARAM
     ordering_fields = None
 
     def get_ordering(self, request):

rest_framework/settings.py

@@ -69,6 +69,10 @@ DEFAULTS = {
     'PAGINATE_BY_PARAM': None,
     'MAX_PAGINATE_BY': None,
 
+    # Filtering
+    'SEARCH_PARAM': 'search',
+    'ORDERING_PARAM': 'ordering',
+
     # Authentication
     'UNAUTHENTICATED_USER': 'django.contrib.auth.models.AnonymousUser',
     'UNAUTHENTICATED_TOKEN': None,

rest_framework/tests/test_filters.py

@@ -7,9 +7,11 @@ from django.test import TestCase
 from django.utils import unittest
 from rest_framework import generics, serializers, status, filters
 from rest_framework.compat import django_filters, patterns, url
+from rest_framework.settings import api_settings
 from rest_framework.test import APIRequestFactory
 from rest_framework.tests.models import BasicModel
 from .models import FilterableItem
+from .utils import temporary_setting
 
 factory = APIRequestFactory()
 
@@ -363,6 +365,24 @@ class SearchFilterTests(TestCase):
             ]
         )
 
+    def test_search_with_nonstandard_search_param(self):
+        with temporary_setting('SEARCH_PARAM', 'query', module=filters):
+            class SearchListView(generics.ListAPIView):
+                model = SearchFilterModel
+                filter_backends = (filters.SearchFilter,)
+                search_fields = ('title', 'text')
+
+            view = SearchListView.as_view()
+            request = factory.get('/', {'query': 'b'})
+            response = view(request)
+            self.assertEqual(
+                response.data,
+                [
+                    {'id': 1, 'title': 'z', 'text': 'abc'},
+                    {'id': 2, 'title': 'zz', 'text': 'bcd'}
+                ]
+            )
+
 
 class OrdringFilterModel(models.Model):
     title = models.CharField(max_length=20)
@@ -520,6 +540,26 @@ class OrderingFilterTests(TestCase):
             ]
         )
 
+    def test_ordering_with_nonstandard_ordering_param(self):
+        with temporary_setting('ORDERING_PARAM', 'order', filters):
+            class OrderingListView(generics.ListAPIView):
+                model = OrdringFilterModel
+                filter_backends = (filters.OrderingFilter,)
+                ordering = ('title',)
+                ordering_fields = ('text',)
+
+            view = OrderingListView.as_view()
+            request = factory.get('/', {'order': 'text'})
+            response = view(request)
+            self.assertEqual(
+                response.data,
+                [
+                    {'id': 1, 'title': 'zyx', 'text': 'abc'},
+                    {'id': 2, 'title': 'yxw', 'text': 'bcd'},
+                    {'id': 3, 'title': 'xwv', 'text': 'cde'},
+                ]
+            )
+
 
 class SensitiveOrderingFilterModel(models.Model):
     username = models.CharField(max_length=20)

rest_framework/tests/utils.py

+from contextlib import contextmanager
+from rest_framework.settings import api_settings
+
+
+@contextmanager
+def temporary_setting(setting, value, module=None):
+    """
+    Temporarily change value of setting for test.
+
+    Optionally reload given module, useful when module uses value of setting on
+    import.
+    """
+    original_value = getattr(api_settings, setting)
+    setattr(api_settings, setting, value)
+
+    if module is not None:
+        reload(module)
+
+    yield
+
+    setattr(api_settings, setting, original_value)
+
+    if module is not None:
+        reload(module)