Golang ICart.GetCartGoods примеры использования

Пример #1

Файл: order.go Проект: yonglehou/go2o

// 应用购物车内商品的促销
func (o *orderImpl) applyCartPromotionOnSubmit(vo *order.Order,
	cart cart.ICart) ([]promotion.IPromotion, int) {
	var proms []promotion.IPromotion = make([]promotion.IPromotion, 0)
	var prom promotion.IPromotion
	var saveFee int
	var totalSaveFee int
	var intOrderFee = int(vo.FinalAmount)
	var rightBack bool

	for _, v := range cart.GetCartGoods() {
		prom = nil
		saveFee = 0
		rightBack = false

		// 判断商品的最省促销
		for _, v1 := range v.GetPromotions() {

			// 返现
			if v1.Type() == promotion.TypeFlagCashBack {
				vc := v1.GetRelationValue().(*promotion.ValueCashBack)
				if vc.MinFee < intOrderFee {
					if vc.BackFee > saveFee {
						prom = v1
						saveFee = vc.BackFee
						rightBack = vc.BackType == promotion.BackUseForOrder // 是否立即抵扣
					}
				}
			}

			//todo: 其他促销
		}

		if prom != nil {
			proms = append(proms, prom)
			if rightBack {
				totalSaveFee += saveFee
			}
		}
	}

	return proms, totalSaveFee
}