From 9b72b847563465bf9545aacc2b5bb5162d6e7320 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mr=C2=B7x?= <as2252258@163.com>
Date: Thu, 10 Sep 2020 16:14:22 +0800
Subject: [PATCH] =?UTF-8?q?=E6=94=B9=E5=90=8D?=
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---
 Database/ActiveQuery.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Database/ActiveQuery.php b/Database/ActiveQuery.php
index 9da036e2..c55b46d6 100644
--- a/Database/ActiveQuery.php
+++ b/Database/ActiveQuery.php
@@ -317,9 +317,10 @@ class ActiveQuery extends Component
 	 */
 	public function exists()
 	{
-		return (bool)$this->modelClass::getDb()
+		$column = $this->modelClass::getDb()
 			->createCommand($this->queryBuilder())
 			->fetchColumn();
+		return $column !== false;
 	}
 
 	/**