From 55bcfca1bd86e54360fa5163ba792603bacfb4d8 Mon Sep 17 00:00:00 2001
From: thinkphp <thinkphp@qq.com>
Date: Thu, 19 Jan 2017 13:50:57 +0800
Subject: [PATCH] =?UTF-8?q?Model=E7=B1=BB=E5=A2=9E=E5=8A=A0=E4=B8=80?=
 =?UTF-8?q?=E5=AF=B9=E4=B8=80=E5=85=B3=E8=81=94=E8=87=AA=E5=8A=A8=E5=88=A0?=
 =?UTF-8?q?=E9=99=A4=E5=8A=9F=E8=83=BD?=
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---
 library/think/Model.php | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/library/think/Model.php b/library/think/Model.php
index 8af809c0..21fc10f0 100644
--- a/library/think/Model.php
+++ b/library/think/Model.php
@@ -831,7 +831,10 @@ abstract class Model implements \JsonSerializable, \ArrayAccess
                     if ($val instanceof Model) {
                         $val->save();
                     } else {
-                        $this->getAttr($name)->save($val);
+                        $model = $this->getAttr($name);
+                        if ($model instanceof Model) {
+                            $model->save($val);
+                        }
                     }
                 }
             }
@@ -987,8 +990,20 @@ abstract class Model implements \JsonSerializable, \ArrayAccess
             return false;
         }
 
+        // 删除当前模型数据
         $result = $this->db()->delete($this->data);
 
+        // 关联删除
+        if (!empty($this->relationWrite)) {
+            foreach ($this->relationWrite as $key => $name) {
+                $name  = is_numeric($key) ? $name : $key;
+                $model = $this->getAttr($name);
+                if ($model instanceof Model) {
+                    $model->delete();
+                }
+            }
+        }
+
         $this->trigger('after_delete', $this);
         return $result;
     }