feat: ✨ 记录产品价格变化

app/rts.go

@@ -307,9 +307,17 @@ 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
-		goods.Price = price
 			err = DB.Save(&goods).Error
 			if err != nil {
 				w.Error(err)
@@ -317,6 +325,27 @@ func UpdateGoods(w *ResponseWriter, r *Request) {
 			}
 		}
 		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
+		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")
+	}
 }
 
 // GetGoodsList 查询商品列表