1 files changed, 23 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
index bfafcfb3ab..a8cd9f033b 100755
--- a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
@@ -66,6 +66,12 @@ module ActiveRecord
       def supports_ddl_transactions?
         false
       end
+      
+      # Does this adapter support savepoints? PostgreSQL and MySQL do, SQLite
+      # does not.
+      def supports_savepoints?
+        false
+      end
 
       # Should primary key values be selected from their corresponding
       # sequence before the insert statement?  If true, next_sequence_value
@@ -160,6 +166,23 @@ module ActiveRecord
         @open_transactions -= 1
       end
 
+      def transaction_joinable=(joinable)
+        @transaction_joinable = joinable
+      end
+
+      def create_savepoint
+      end
+
+      def rollback_to_savepoint
+      end
+
+      def release_savepoint
+      end
+
+      def current_savepoint_name
+        "active_record_#{open_transactions}"
+      end
+
       def log_info(sql, name, ms)
         if @logger && @logger.debug?
           name = '%s (%.1fms)' % [name || 'SQL', ms]