fix
This commit is contained in:
laodaming
@@ -0,0 +1,190 @@
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package logic
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import (
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"errors"
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"fmt"
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"fusenapi/model/gmodel"
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"fusenapi/utils/auth"
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"fusenapi/utils/basic"
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"fusenapi/utils/format"
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"fusenapi/utils/id_generator"
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"fusenapi/utils/step_price"
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"gorm.io/gorm"
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"math"
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"strings"
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"time"
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"context"
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"fusenapi/server/shopping-cart-confirmation/internal/svc"
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"fusenapi/server/shopping-cart-confirmation/internal/types"
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"github.com/zeromicro/go-zero/core/logx"
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)
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type CreateOrderLogic struct {
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logx.Logger
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ctx context.Context
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svcCtx *svc.ServiceContext
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}
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func NewCreateOrderLogic(ctx context.Context, svcCtx *svc.ServiceContext) *CreateOrderLogic {
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return &CreateOrderLogic{
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Logger: logx.WithContext(ctx),
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ctx: ctx,
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svcCtx: svcCtx,
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}
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}
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func (l *CreateOrderLogic) CreateOrder(req *types.CreateOrderReq, userinfo *auth.UserInfo) (resp *basic.Response) {
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if userinfo.GetIdType() != auth.IDTYPE_User {
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return resp.SetStatusWithMessage(basic.CodeUnAuth, "please login first")
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}
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if len(req.Form) == 0 {
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return resp.SetStatusWithMessage(basic.CodeRequestParamsErr, "err param form:can`t be empty")
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}
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cartIds := make([]int64, 0, len(req.Form))
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mapForm := make(map[int64]int)
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for k, v := range req.Form {
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cartIds = append(cartIds, v.Id)
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mapForm[v.Id] = k
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}
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//获取购物车列表
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cartList, err := l.svcCtx.AllModels.FsCart.GetUserCartsByIds(l.ctx, userinfo.UserId, cartIds)
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if err != nil {
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logx.Error(err)
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return resp.SetStatusWithMessage(basic.CodeDbSqlErr, "failed to get cart list")
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}
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if len(cartList) != len(req.Form) {
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return resp.SetStatusWithMessage(basic.CodeRequestParamsErr, "sorry,may be some one not belong to you")
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}
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priceIds := make([]int64, 0, len(cartList))
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optionalIds := make([]int64, 0, len(cartList))
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for _, v := range cartList {
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priceIds = append(priceIds, *v.PriceId)
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optionalIds = append(optionalIds, *v.OptionalId)
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}
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//获取价格
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priceList, err := l.svcCtx.AllModels.FsProductPrice.GetPriceListByIds(l.ctx, priceIds)
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if err != nil {
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logx.Error(err)
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return resp.SetStatusWithMessage(basic.CodeDbSqlErr, "failed to get product price list")
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}
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mapPrice := make(map[int64]int)
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for k, v := range priceList {
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mapPrice[v.Id] = k
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}
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//获取附加项
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model3dList, err := l.svcCtx.AllModels.FsProductModel3d.GetAllByIdsWithoutStatus(l.ctx, optionalIds)
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if err != nil {
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logx.Error(err)
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return resp.SetStatusWithMessage(basic.CodeDbSqlErr, "failed to get 3d model list")
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}
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mapModel3d := make(map[int64]int)
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for k, v := range model3dList {
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mapModel3d[v.Id] = k
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}
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var (
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now = time.Now().Unix()
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total int64 //总价
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)
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orderSn := id_generator.GenSnNum()
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//开启事务
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err = l.svcCtx.MysqlConn.Transaction(func(tx *gorm.DB) error {
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orderDetailTemplateModel := gmodel.NewFsOrderDetailTemplateModel(tx)
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orderDetailModel := gmodel.NewFsOrderDetailModel(tx)
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orderModel := gmodel.NewFsOrderModel(tx)
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//订单数据
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deliveryMethod := int64(1)
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orderCreateData := gmodel.FsOrder{
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Sn: &orderSn,
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UserId: &userinfo.UserId,
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Ctime: &now,
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Utime: &now,
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DeliveryMethod: &deliveryMethod,
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}
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if err = orderModel.Create(l.ctx, &orderCreateData); err != nil {
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return err
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}
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for _, cart := range cartList {
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priceIndex, ok := mapPrice[*cart.PriceId]
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if !ok {
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return errors.New(fmt.Sprintf("price info is not exists,id = %d", *cart.PriceId))
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}
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//订单详情模板数据
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orderDetailTemplateSn, err := id_generator.GenSnowFlakeId()
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if err != nil {
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return err
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}
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orderDetailTemplateCreateData := gmodel.FsOrderDetailTemplate{
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Sn: &orderDetailTemplateSn,
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ProductId: cart.ProductId,
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ModelId: cart.OptionalId,
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TemplateId: cart.TemplateId,
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MaterialId: cart.MaterialId,
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SizeId: cart.SizeId,
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EachBoxNum: priceList[priceIndex].EachBoxNum,
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EachBoxWeight: priceList[priceIndex].EachBoxWeight,
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DesignId: cart.DesignId,
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Ctime: &now,
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}
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if err = orderDetailTemplateModel.Create(l.ctx, &orderDetailTemplateCreateData); err != nil {
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return err
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}
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//获取阶梯价格和数量
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stepNumSlice, err := format.StrSlicToIntSlice(strings.Split(*priceList[priceIndex].StepNum, ","))
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if err != nil {
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return err
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}
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stepPriceSlice, err := format.StrSlicToIntSlice(strings.Split(*priceList[priceIndex].StepPrice, ","))
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if err != nil {
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return err
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}
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formIndex, _ := mapForm[cart.Id] //一定会有不用判断
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//订单详情数据
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orderDetailSn, err := id_generator.GenSnowFlakeId()
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if err != nil {
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return err
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}
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optionalPrice := int64(0)
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optionalTitle := ""
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if model3dIndex, ok := mapModel3d[*cart.OptionalId]; ok {
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optionalPrice = *model3dList[model3dIndex].Price
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optionalTitle = *model3dList[model3dIndex].Title
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}
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fn := int(math.Ceil(float64(req.Form[formIndex].Num) / float64(*priceList[priceIndex].EachBoxNum)))
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amount := step_price.GetCentStepPrice(fn, stepNumSlice, stepPriceSlice)
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orderDetailCreateData := gmodel.FsOrderDetail{
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OrderId: &orderCreateData.Id,
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Sn: &orderDetailSn,
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UserId: &userinfo.UserId,
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OrderDetailTemplateId: &orderDetailTemplateCreateData.Id,
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ProductId: cart.ProductId,
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BuyNum: &req.Form[formIndex].Num, //以提交数量为准
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Amount: &amount,
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Cover: cart.Cover,
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Ctime: &now,
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OptionalId: cart.OptionalId,
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OptionalTitle: &optionalTitle,
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OptionPrice: &optionalPrice,
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CartId: &cart.Id,
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}
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if err = orderDetailModel.Create(l.ctx, &orderDetailCreateData); err != nil {
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return err
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}
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total += amount * (*orderDetailCreateData.BuyNum)
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}
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//更新订单总价
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return orderModel.Update(l.ctx, &gmodel.FsOrder{
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Id: orderCreateData.Id,
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TotalAmount: &total,
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})
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})
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if err != nil {
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logx.Error(err)
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return resp.SetStatusWithMessage(basic.CodeServiceErr, "failed to create order")
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}
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return resp.SetStatusWithMessage(basic.CodeOK, "success", types.CreateOrderRsp{
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Sn: orderSn,
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})
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}
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