From 55daae4773c945997cbf8dbb7c9ae35d579f4cb2 Mon Sep 17 00:00:00 2001
From: Qiang Xue <qiang.xue@gmail.com>
Date: Sun, 30 Jun 2013 18:45:05 -0400
Subject: [PATCH] Fixes issue #589: validate the scenario name.

---
 framework/yii/base/Model.php | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/framework/yii/base/Model.php b/framework/yii/base/Model.php
index 3e38442..553f2e8 100644
--- a/framework/yii/base/Model.php
+++ b/framework/yii/base/Model.php
@@ -583,10 +583,15 @@ class Model extends Component implements \IteratorAggregate, \ArrayAccess
 	/**
 	 * Sets the scenario for the model.
 	 * @param string $value the scenario that this model is in.
-	 * @see getScenario
+	 * @throws InvalidParamException if the scenario to be set is unknown
+	 * @see scenarios()
 	 */
 	public function setScenario($value)
 	{
+		$scenarios = $this->scenarios();
+		if (!isset($scenarios[$value])) {
+			throw new InvalidParamException("Setting unknown scenario: $value");
+		}
 		$this->_scenario = $value;
 	}