From 13b9e1a1cb0e3a14da9a536c1ac0cf2cdf7430df Mon Sep 17 00:00:00 2001
From: Minho <longfei6671@163.com>
Date: Mon, 12 Mar 2018 16:24:44 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BC=98=E5=8C=96=E5=8E=86=E5=8F=B2=E6=96=87?=
 =?UTF-8?q?=E6=A1=A3=E4=BF=9D=E5=AD=98=E9=80=BB=E8=BE=91=EF=BC=8C=E5=8F=AA?=
 =?UTF-8?q?=E6=9C=89=E4=B8=A4=E6=AC=A1=E6=96=87=E6=A1=A3=E5=86=85=E5=AE=B9?=
 =?UTF-8?q?MD5=E5=80=BC=E4=B8=80=E8=87=B4=E6=97=B6=E6=89=8D=E4=BF=9D?=
 =?UTF-8?q?=E5=AD=98?=
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---
 controllers/document.go | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/controllers/document.go b/controllers/document.go
index 8e64865c..cd35e52d 100644
--- a/controllers/document.go
+++ b/controllers/document.go
@@ -26,6 +26,7 @@ import (
 	"github.com/lifei6671/mindoc/utils"
 	"github.com/lifei6671/mindoc/utils/pagination"
 	"gopkg.in/russross/blackfriday.v2"
+	"github.com/lifei6671/mindoc/utils/cryptil"
 )
 
 // DocumentController struct
@@ -805,12 +806,16 @@ func (c *DocumentController) Content() {
 		}
 
 		// 如果启用了文档历史，则添加历史文档
-		if c.EnableDocumentHistory {
-			_, err = history.InsertOrUpdate()
-			if err != nil {
-				beego.Error("DocumentHistory InsertOrUpdate => ", err)
+		///如果两次保存的MD5值不同则保存为历史，否则忽略
+		go func(history *models.DocumentHistory) {
+			if c.EnableDocumentHistory && cryptil.Md5Crypt(history.Markdown) != cryptil.Md5Crypt(doc.Markdown) {
+				_, err = history.InsertOrUpdate()
+				if err != nil {
+					beego.Error("DocumentHistory InsertOrUpdate => ", err)
+				}
 			}
-		}
+		}(history)
+
 		//如果启用了自动发布
 		if autoRelease {
 			go func(identify string) {