public AdvertisementService(long aid, Data.IAdvertisementRepository advertisementRepository)
{
ExceptionHelper.ThrowIfNotId(aid, "aid");
_AdvertisementRepository = advertisementRepository;
_Aid = aid;
_LazyAdvertisement = new Lazy <Data.Advertisement>(() =>
{
var entity = _AdvertisementRepository.Entities.FirstOrDefault(a => a.aid == aid);
if (entity == null)
{
throw new FlhException(ErrorCode.NotExists, "广告不存在");
}
return(entity);
});
}
public AdvertisementManager(Data.IAdvertisementRepository advertisementRepository)
{
_AdvertisementRepository = advertisementRepository;
}
