/// <summary>
/// 根据商品id查看商品信息
/// </summary>
/// <param name="id"></param>
/// <returns></returns>
public CommodityMessage? getCommodityMessage(string id) {
CommodityMessage? result = null;
try {
result = DB.findCommodityById(id);
}
catch (NotFindException) {
}
return result;
}
/// <summary>
/// 减少某商品的数量
/// </summary>
/// <param name="num"></param>
/// <returns>如果传入的id不正确，或num大于剩余数量则返回false</returns>
public bool clearRepo(string id, int num) {
try {
CommodityMessage com = DB.findCommodityById(id);
if (com.num < num) return false;
com.num -= num;
return DB.modityCommodity(com);
}
catch (NotFindException) {
return false;
}
}
/// <summary>
/// 清空某商品的库存
/// </summary>
/// <param name="num"></param>
/// <returns>如果传入的id不正确则返回false</returns>
public bool clearRepo(string id)
{
try {
CommodityMessage com = DB.findCommodityById(id);
com.num = 0;
return(DB.modityCommodity(com));
}
catch (NotFindException) {
return(false);
}
}
public CommodityMessage?getCommodityById(string id)
{
CommodityMessage?com = null;
try {
com = DB.findCommodityById(id);
if (com.Value.outPrice == 0)
{
com = null;
}
}
catch (Exception) {
}
return(com);
}
