// 获取购物车
func (this *shoppingService) getShoppingCart(buyerId int,
cartKey string) cart.ICart {
var c cart.ICart
if len(cartKey) > 0 {
c = this._cartRep.GetShoppingCartByKey(cartKey)
} else if buyerId > 0 {
c = this._cartRep.GetMemberCurrentCart(buyerId)
}
if c == nil {
c = this._cartRep.NewCart()
_, err := c.Save()
domain.HandleError(err, "service")
}
if c.GetValue().BuyerId <= 0 {
err := c.SetBuyer(buyerId)
domain.HandleError(err, "service")
}
return c
}
