goshop/shoppingCart-service/handler/cart_handler.go

package handler

import (
	"context"
	"fmt"
	"shoppingCart/domain/service"
	"shoppingCart/proto"
	"strconv"
	"strings"
)

type CartHandler struct {
	CartService service.ICartService
}

// 新增购物车
func (u *CartHandler) AddCart(ctx context.Context, req *proto.AddCartReq, resp *proto.AddCartResp) error {
	obj, err := u.CartService.AddCart(req)
	if err != nil {
		println("  AddCart err :", err)
	} else {
		resp.CanSetShoppingCartNumber = int64(obj.Number)
		resp.ShoppingCartNumber = int64(obj.Number)
		resp.IsBeyondMaxLimit = false // 查询sku
		resp.ID = obj.ID              //增加新增cart的ID
		fmt.Println(" AddCart  handler  >>>>>>  ", resp)
	}
	return err
}

//修改购物车

func (u *CartHandler) UpdateCart(ctx context.Context, req *proto.UpdateCartReq, resp *proto.UpdateCartResp) error {
	obj, err := u.CartService.UpdateCart(req)
	if err != nil {
		println("  UpdateCart err :", err)
	} else {
		resp.CanSetShoppingCartNumber = int64(obj.Number)
		resp.ShoppingCartNumber = int64(obj.Number)
		resp.IsBeyondMaxLimit = false // 查询sku
		resp.ID = obj.ID              //增加新增cart的ID
		fmt.Println(" UpdateCart  handler  >>>>>>  ", resp)
	}
	return err
}

// (int32List []int32) (obj *float32, err error)
func (u *CartHandler) GetOrderTotal(ctx context.Context, req *proto.OrderTotalReq, obj *proto.OrderTotalResp) error {
	//int32List := SplitToInt32List(req.GetCartIds(), ",")
	obj.TotalPrice, _ = u.CartService.GetOrderTotal(req.GetCartIds())
	return nil
}

// 格式化页面传入的cartIds
func SplitToInt32List(str string, sep string) (int32List []int32) {
	tempStr := strings.Split(str, sep)
	if len(tempStr) > 0 {
		for _, item := range tempStr {
			if item == "" {
				continue
			}
			val, err := strconv.ParseInt(item, 10, 32)
			if err != nil {
				continue
			}
			int32List = append(int32List, int32(val))
		}
	}
	return int32List
}