1 files changed, 10 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
index 828f321767..c4ef2be82e 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
@@ -532,6 +532,16 @@ module ActiveRecord
       def rollback_db_transaction
         execute "ROLLBACK"
       end
+      
+      if PGconn.public_method_defined?(:transaction_status)
+        # ruby-pg defines Ruby constants for transaction status,
+        # ruby-postgres does not.
+        PQTRANS_IDLE = defined?(PGconn::PQTRANS_IDLE) ? PGconn::PQTRANS_IDLE : 0
+        
+        def outside_transaction?
+          @connection.transaction_status == PQTRANS_IDLE
+        end
+      end
 
       def create_savepoint
         execute("SAVEPOINT #{current_savepoint_name}")