1 files changed, 42 insertions, 0 deletions
diff --git a/plugins/PagePerformance/Columns/Base.php b/plugins/PagePerformance/Columns/Base.php
new file mode 100644
index 0000000000..374493b067
--- /dev/null
+++ b/plugins/PagePerformance/Columns/Base.php
@@ -0,0 +1,42 @@
+<?php
+/**
+ * Matomo - free/libre analytics platform
+ *
+ * @link https://matomo.org
+ * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
+ *
+ */
+namespace Piwik\Plugins\PagePerformance\Columns;
+
+use Piwik\Exception\InvalidRequestParameterException;
+use Piwik\Plugin\Dimension\ActionDimension;
+use Piwik\Tracker\Action;
+use Piwik\Tracker\ActionPageview;
+use Piwik\Tracker\Request;
+use Piwik\Tracker\Visitor;
+
+abstract class Base extends ActionDimension
+{
+    protected $type = self::TYPE_DURATION_MS;
+
+    abstract public function getRequestParam();
+
+    public function onNewAction(Request $request, Visitor $visitor, Action $action)
+    {
+        if (!($action instanceof ActionPageview)) {
+            return false;
+        }
+
+        $time = $request->getParam($this->getRequestParam());
+
+        if ($time === -1) {
+            return false;
+        }
+
+        if ($time < 0) {
+            throw new InvalidRequestParameterException(sprintf('Value for %1$s can\'t be negative.', $this->getRequestParam()));
+        }
+
+        return $time;
+    }
+}