From 9b353811af24921322f5bccb4e03617cbda6f8d7 Mon Sep 17 00:00:00 2001
From: thinkphp <thinkphp@qq.com>
Date: Mon, 17 Apr 2017 12:35:28 +0800
Subject: [PATCH] =?UTF-8?q?=E6=94=B9=E8=BF=9Bmodel=E7=B1=BBsave=E6=96=B9?=
 =?UTF-8?q?=E6=B3=95?=
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---
 library/think/Model.php | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/library/think/Model.php b/library/think/Model.php
index 079df3b1..f2acbad5 100644
--- a/library/think/Model.php
+++ b/library/think/Model.php
@@ -941,7 +941,20 @@ abstract class Model implements \JsonSerializable, \ArrayAccess
             $data = $this->getChangedData();
 
             if (empty($data) || (count($data) == 1 && is_string($pk) && isset($data[$pk]))) {
-                // 没有更新
+                // 关联更新
+                if (isset($relation)) {
+                    foreach ($relation as $name => $val) {
+                        if ($val instanceof Model) {
+                            $val->save();
+                        } else {
+                            unset($this->data[$name]);
+                            $model = $this->getAttr($name);
+                            if ($model instanceof Model) {
+                                $model->save($val);
+                            }
+                        }
+                    }
+                }
                 return 0;
             } elseif ($this->autoWriteTimestamp && $this->updateTime && !isset($data[$this->updateTime])) {
                 // 自动写入更新时间