From 59113fc385c5780a84e6c04aa18769840fcb2e1b Mon Sep 17 00:00:00 2001
From: Kijin Sung <kijin@kijinsung.com>
Date: Mon, 19 Jun 2023 15:22:06 +0900
Subject: [PATCH] Mark DB->getHandle() as nullable, and update related methods

---
 common/framework/DB.php | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/common/framework/DB.php b/common/framework/DB.php
index 65f166035..bc0a2c250 100644
--- a/common/framework/DB.php
+++ b/common/framework/DB.php
@@ -158,9 +158,9 @@ class DB
 	/**
 	 * Get the PDO handle for direct manipulation.
 	 *
-	 * @return Helpers\DBHelper
+	 * @return ?Helpers\DBHelper
 	 */
-	public function getHandle(): Helpers\DBHelper
+	public function getHandle(): ?Helpers\DBHelper
 	{
 		return $this->_handle;
 	}
@@ -1430,7 +1430,7 @@ class DB
 	 */
 	public function isConnected(): bool
 	{
-		return true;
+		return $this->_handle ? true : false;
 	}
 
 	/**
@@ -1496,7 +1496,7 @@ class DB
 	{
 		return 0;
 	}
-	public function _getConnection(): \PDO
+	public function _getConnection(): ?Helpers\DBHelper
 	{
 		return $this->getHandle();
 	}