feat: ✨ 记录产品价格变化

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