From 4dddb833bb926853afab73c4a30487791edd6971 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mr=C2=B7x?= <as2252258@163.com>
Date: Wed, 24 Feb 2021 19:06:44 +0800
Subject: [PATCH] =?UTF-8?q?=E6=94=B9=E5=90=8D?=
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---
 Database/Orm/Condition.php | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Database/Orm/Condition.php b/Database/Orm/Condition.php
index 8f4e0e2b..64d10194 100644
--- a/Database/Orm/Condition.php
+++ b/Database/Orm/Condition.php
@@ -76,7 +76,10 @@ trait Condition
 	private function builderWhere($where): string
 	{
 		$_tmp = [];
-		if (empty($where)) return '';
+		if (is_null($where)) {
+			return '';
+		}
+		if (empty($where) || is_string($where)) return $where;
 		foreach ($where as $key => $value) {
 			$_value = is_string($value) ? $value : $this->conditionMap($value);