From 532173e0105976c742d6b15ca6c4feb920cb9928 Mon Sep 17 00:00:00 2001
From: thinkphp <thinkphp@qq.com>
Date: Thu, 9 Feb 2017 14:42:39 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BC=98=E5=8C=96HasOne=E7=9A=84has=E6=96=B9?=
 =?UTF-8?q?=E6=B3=95?=
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---
 library/think/model/relation/HasOne.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/library/think/model/relation/HasOne.php b/library/think/model/relation/HasOne.php
index a2ff72be..9d4f5f79 100644
--- a/library/think/model/relation/HasOne.php
+++ b/library/think/model/relation/HasOne.php
@@ -65,7 +65,7 @@ class HasOne extends OneToOne
         $foreignKey = $this->foreignKey;
         return $this->parent->db()->alias('a')
             ->whereExists(function ($query) use ($table, $localKey, $foreignKey) {
-                $query->table([$table => 'b'])->whereExp('a.' . $localKey, '=b.' . $foreignKey);
+                $query->table([$table => 'b'])->field('b.' . $foreignKey)->whereExp('a.' . $localKey, '=b.' . $foreignKey);
             });
     }