update Piwik to version 2.16 (fixes #91)

www/analytics/plugins/CoreHome/Columns/VisitLastActionTime.php

@@ -0,0 +1,60 @@
+<?php
+/**
+ * Piwik - free/libre analytics platform
+ *
+ * @link http://piwik.org
+ * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
+ *
+ */
+namespace Piwik\Plugins\CoreHome\Columns;
+
+use Piwik\Date;
+use Piwik\Plugin\Dimension\VisitDimension;
+use Piwik\Tracker\Action;
+use Piwik\Tracker\Request;
+use Piwik\Tracker;
+use Piwik\Tracker\Visitor;
+
+/**
+ * This dimension holds the best guess for a visit's end time. It is set the last action
+ * time for each visit. `ping=1` requests can be sent to update the dimension value so
+ * it can be a more accurate guess of the time the visitor spent on the site.
+ *
+ * Note: though it is named 'visit last action time' it actually refers to the visit's last action's
+ * end time.
+ */
+class VisitLastActionTime extends VisitDimension
+{
+    protected $columnName = 'visit_last_action_time';
+    // we do not install or define column definition here as we need to create this column when installing as there is
+    // an index on it. Currently we do not define the index here... although we could overwrite the install() method
+    // and add column 'visit_last_action_time' and add index. Problem is there is also an index
+    // INDEX(idsite, config_id, visit_last_action_time) and we maybe not be sure whether idsite already exists at
+    // installing point (we do not know whether idsite column will be added first).
+
+    /**
+     * @param Request $request
+     * @param Visitor $visitor
+     * @param Action|null $action
+     * @return mixed
+     */
+    public function onNewVisit(Request $request, Visitor $visitor, $action)
+    {
+        return Date::getDatetimeFromTimestamp($request->getCurrentTimestamp());
+    }
+
+    /**
+     * @param Request $request
+     * @param Visitor $visitor
+     * @param Action|null $action
+     * @return mixed
+     */
+    public function onExistingVisit(Request $request, Visitor $visitor, $action)
+    {
+        if ($request->getParam('ping') == 1) {
+            return false;
+        }
+        
+        return $this->onNewVisit($request, $visitor, $action);
+    }
+}