add compatibility with old Django

Author: michiya

django_pyodbc/base.py

@@ -48,6 +48,9 @@ class DatabaseFeatures(BaseDatabaseFeatures):
     supports_transactions = True
     #uses_savepoints = True
 
+    def _supports_transactions(self):
+        # keep it compatible with Django 1.3 and 1.4
+        return self.supports_transactions
 
 class DatabaseWrapper(BaseDatabaseWrapper):
     _DJANGO_VERSION = _DJANGO_VERSION

django_pyodbc/creation.py

@@ -120,6 +120,10 @@ def _prepare_for_test_db_ddl(self):
         self.connection.connection.rollback()
         self.connection.connection.autocommit = True
 
+    def _rollback_works(self):
+        # keep it compatible with Django 1.2
+        return self.connection.features.supports_transactions
+
     def sql_table_creation_suffix(self):
         suffix = []
         if self.connection.settings_dict['TEST_COLLATION']: