--- a/busui/owa/modules/base/handlers/sessionCommerceSummaryHandlers.php
+++ b/busui/owa/modules/base/handlers/sessionCommerceSummaryHandlers.php
@@ -1,1 +1,114 @@
-
+<?php
+
+//
+// Open Web Analytics - An Open Source Web Analytics Framework
+//
+// Copyright 2006 Peter Adams. All rights reserved.
+//
+// Licensed under GPL v2.0 http://www.gnu.org/copyleft/gpl.html
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// $Id$
+//
+
+if(!class_exists('owa_observer')) {
+	require_once(OWA_DIR.'owa_observer.php');
+}	
+require_once(OWA_DIR.'owa_lib.php');
+
+/**
+ * Session Commerce Summary Event handlers
+ *
+ * Listens for commerce.transaction event and does an idempotent update of the session's
+ * commerce realted summary columns.
+ * 
+ * @author      Peter Adams <peter@openwebanalytics.com>
+ * @copyright   Copyright &copy; 2006-2011 Peter Adams <peter@openwebanalytics.com>
+ * @license     http://www.gnu.org/copyleft/gpl.html GPL v2.0
+ * @category    owa
+ * @package     owa
+ * @version		$Revision$	      
+ * @since		owa 1.4.0
+ */
+
+class owa_sessionCommerceSummaryHandlers extends owa_observer {
+    	
+    /**
+     * Notify handler method
+     *
+     * @param 	object	$event
+     * @access 	public
+     * @return	boolean
+     */
+    function notify($event) {
+				
+    	$s = owa_coreAPI::entityFactory( 'base.session' );
+		$pk = $event->get( 'session_id' );
+		
+		// just in case events slip thorugh that have no session_id
+		// look for the original session id param
+		if ( ! $pk ) {
+			$pk = $event->get( 'original_session_id' );
+			if ($pk) {
+				$event->set('session_id', $pk);
+			}
+		}
+		
+		$s->getByPk( 'id', $pk );
+		$id = $s->get('id'); 
+		
+		if ($id) {
+			// summarze the transaction
+			$summary = owa_coreAPI::summarize(array(
+    			'entity'		=> 'base.commerce_transaction_fact',
+    			'columns'		=> array(
+    					'id' 		=> 'count',
+    					'total_revenue'		=> 'sum',
+    					'tax_revenue'		=> 'sum',
+    					'shipping_revenue'	=> 'sum'),
+    			'constraints'	=> array( 'session_id' => $id ) ) );
+			
+			$s->set( 'commerce_trans_count', $summary['id_count'] );
+			$s->set( 'commerce_trans_revenue', $summary['total_revenue_sum'] );
+			$s->set( 'commerce_tax_revenue', $summary['tax_revenue_sum'] );
+			$s->set( 'commerce_shipping_revenue', $summary['shipping_revenue_sum'] );
+			
+			// check for items and summarize if needed.
+			$items = $event->get('ct_line_items');
+			
+			if ( ! empty( $items ) ) {
+				$summary = owa_coreAPI::summarize(array(
+    			'entity'		=> 'base.commerce_line_item_fact',
+    			'columns'		=> array(
+    					'sku' 				=> 'count_distinct',
+    					'item_revenue'		=> 'sum',
+    					'quantity'			=> 'sum'),
+    			'constraints'	=> array( 'session_id' => $id ) ) );
+			
+				$s->set( 'commerce_items_count', $summary['sku_dcount'] );
+				$s->set( 'commerce_items_revenue', $summary['item_revenue_sum'] );
+				$s->set( 'commerce_items_quantity', $summary['quantity_sum'] );	
+			}
+			
+			$ret = $s->update();
+			
+			if ($ret) {
+				return OWA_EHS_EVENT_HANDLED;	
+			} else {
+				return OWA_EHS_EVENT_FAILED;
+			}
+			
+		} else {
+		
+			owa_coreAPI::debug('Not Updating session commerce transaction properties. Session does not exist yet.');
+			return OWA_EHS_EVENT_FAILED;
+		}	
+    }
+}
+
+?>