--- a/busui/owa/modules/base/metrics/uniqueVisitors.php
+++ b/busui/owa/modules/base/metrics/uniqueVisitors.php
@@ -1,1 +1,46 @@
-
+<?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.
+//
+// $Id$
+//
+
+/**
+ * Unique Visitors metric
+ * 
+ * @author      Peter Adams <peter@openwebanalytics.com>
+ * @copyright   Copyright &copy; 2006 Peter Adams <peter@openwebanalytics.com>
+ * @license     http://www.gnu.org/copyleft/gpl.html GPL v2.0
+ * @category    owa
+ * @package     owa
+ * @version		$Revision$	      
+ * @since		owa 1.3.0
+ */
+
+class owa_uniqueVisitors extends owa_metric {
+
+	function __construct() {
+	
+		$this->setName('uniqueVisitors');
+		$this->setLabel('Unique Visitors');
+		$this->setEntity('base.session');
+		$this->setColumn('visitor_id');
+		$this->setSelect(sprintf("count(distinct(%s))", $this->getColumn()));
+		$this->setDataType('integer');
+		
+		return parent::__construct();
+	}
+}
+
+?>