From fec58f4e298fe23404ddfecb4a684e2a8cb3e26e Mon Sep 17 00:00:00 2001
From: Qiang Xue <qiang.xue@gmail.com>
Date: Tue, 10 Dec 2013 09:25:01 -0500
Subject: [PATCH] Fixes #1472: set event sender if possible.

---
 framework/yii/base/Event.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/framework/yii/base/Event.php b/framework/yii/base/Event.php
index a678c89..974a1a4 100644
--- a/framework/yii/base/Event.php
+++ b/framework/yii/base/Event.php
@@ -161,6 +161,9 @@ class Event extends Object
 		$event->name = $name;
 
 		if (is_object($class)) {
+			if ($event->sender === null) {
+				$event->sender = $class;
+			}
 			$class = get_class($class);
 		} else {
 			$class = ltrim($class, '\\');