From b56bce9de78969b95758dbe780189fd6bb732323 Mon Sep 17 00:00:00 2001
From: hupeh <hupeh@qq.com>
Date: Mon, 2 Jan 2023 13:30:14 +0800
Subject: [PATCH] =?UTF-8?q?feat:=20:sparkles:=20=E8=AE=B0=E5=BD=95?=
 =?UTF-8?q?=E4=BA=A7=E5=93=81=E4=BB=B7=E6=A0=BC=E5=8F=98=E5=8C=96?=
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---
 app/rts.go | 41 +++++++++++++++++++++++++++++++++++------
 1 file changed, 35 insertions(+), 6 deletions(-)

diff --git a/app/rts.go b/app/rts.go
index 685f896..52a366a 100644
--- a/app/rts.go
+++ b/app/rts.go
@@ -307,16 +307,45 @@ func UpdateGoods(w *ResponseWriter, r *Request) {
 		w.Error(err)
 		return
 	}
-	if goods.Name != name || goods.Price != price {
+
+	// 信息未改变
+	if goods.Name == name && goods.Price == price {
+		w.Error(NewError(2, "数据未变化"))
+		return
+	}
+
+	// 价格未改变
+	if goods.Price == price {
+		if goods.Name != name {
+			goods.Name = name
+			err = DB.Save(&goods).Error
+			if err != nil {
+				w.Error(err)
+				return
+			}
+		}
+		w.Ok(goods, "修改成功")
+		return
+	}
+
+	// 修改商品信息并记录价格变化
+	err = DB.Transaction(func(tx *gorm.DB) error {
 		goods.Name = name
 		goods.Price = price
-		err = DB.Save(&goods).Error
-		if err != nil {
-			w.Error(err)
-			return
+		if err = tx.Save(&goods).Error; err != nil {
+			return err
 		}
+		// 记录价格变化
+		return tx.Create(&Price{
+			GoodsID: goods.ID,
+			Price:   goods.Price,
+		}).Error
+	})
+	if err != nil {
+		w.Error(err)
+	} else {
+		w.Ok(goods, "修改成功")
 	}
-	w.Ok(goods, "修改成功")
 }
 
 // GetGoodsList 查询商品列表