77 lines
2.2 KiB
Go
77 lines
2.2 KiB
Go
package cart
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import (
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"context"
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"bsm/full/module/ec/order/internal/impl"
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"bsm/full/module/ec/order/internal/models"
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pb "bsm/full/module/ec/order/pb"
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"git.apinb.com/bsm-sdk/core/errcode"
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"git.apinb.com/bsm-sdk/core/printer"
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"git.apinb.com/bsm-sdk/core/service"
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)
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// 获取购物车的商品数据
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func Fetch(ctx context.Context, in *pb.CartGetRequest) (reply *pb.CartGetReply, err error) {
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auth, err := service.ParseMetaCtx(ctx, nil)
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if err != nil {
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return nil, err
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}
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var (
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result = make([]*pb.CartItem, 0)
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cart = make([]*models.OrderCart, 0)
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)
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if in.GetPassport() == "" {
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if in.GetCarIdentity() == "" && in.GetPassportIdentity() == "" {
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return nil, errcode.ErrInvalidArgument
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}
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}
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// 查询购物车数据：仅返回属于当前登录者的条目，cart_identity 只作附加过滤。
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tx := impl.DBService.Where("passport_identity = ?", auth.Identity)
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if in.GetCarIdentity() != "" {
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tx = tx.Where("cart_identity = ?", in.GetCarIdentity())
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}
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err = tx.Find(&cart).Error
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if err != nil {
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printer.Error(err.Error())
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return nil, errcode.ErrDB
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}
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for _, item := range cart {
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product := models.Product{}
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err := impl.DBService.Raw(`
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SELECT
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p.id, p.identity, p.title, p.cover_image, p.args,
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( SELECT MIN(mps.price)
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FROM product_spec ps
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JOIN mall_product_spec mps ON ps.spec_id = mps.id
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WHERE ps.product_identity = p.identity
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) as sales_price FROM mall_product p WHERE p.identity = ?`, item.ProductIdentity).Scan(&product).Error
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if err != nil {
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printer.Error(err.Error())
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return nil, errcode.ErrDB
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}
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da := &pb.CartItem{
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Id: int64(item.ID),
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ProductId: product.Id,
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Title: product.Title,
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ProductIdentity: product.Identity,
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CoverImage: product.CoverImage,
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SalesPrice: product.SalesPrice,
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ProductArgs: item.ProductArgs,
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UnitPrice: product.SalesPrice,
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TotalPrice: int64(item.Number) * product.SalesPrice,
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Number: item.Number,
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Identity: item.Identity,
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}
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result = append(result, da)
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}
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return &pb.CartGetReply{
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Data: result,
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CarIdentity: in.GetCarIdentity(),
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}, nil
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}
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