Implemented BaseDatabaseFeatures and changed all code to access it -- connection.features.foo instead of backend.foo

git-svn-id: http://code.djangoproject.com/svn/django/trunk@5974 bcc190cf-cafb-0310-a4f2-bffc1f526a37

1 files changed, 10 insertions, 0 deletions

diff --git a/django/db/backends/__init__.py b/django/db/backends/__init__.py
index 632dd36639..2415d453ce 100644
--- a/django/db/backends/__init__.py
+++ b/django/db/backends/__init__.py
@@ -39,6 +39,16 @@ class BaseDatabaseWrapper(local):
         from django.db.backends import util
         return util.CursorDebugWrapper(cursor, self)
 
+class BaseDatabaseFeatures(object):
+    allows_group_by_ordinal = True
+    allows_unique_and_pk = True
+    autoindexes_primary_keys = True
+    needs_datetime_string_cast = True
+    needs_upper_for_iops = False
+    supports_constraints = True
+    supports_tablespaces = False
+    uses_case_insensitive_names = False
+
 class BaseDatabaseOperations(object):
     """
     This class encapsulates all backend-specific differences, such as the way