public bool Exists(Info info)
{
if (info == null) return false;
ModelIdHelper.GenerateId<Info>(info);
return Read()
.Exists(item => item != null
&& item.Id == info.Id);
}
public Info Delete(Info info)
{
if (info == null) return info;
ModelIdHelper.GenerateId<Info>(info);
Info rs = Provider.Delete<Info>(info);
Build();
CacheKey.ReBuildCache();
return rs;
}
public Info Update(Info info)
{
if (info == null) return info;
ModelIdHelper.GenerateId<Info>(info);
if (!Exists(info))
{
throw new Exception(string.Format("更新列表‘{0}’对象时，发现对象不存在", typeof(Info).Name));
}
Info rs = Provider.Update<Info>(info);
Build();
CacheKey.ReBuildCache();
return rs;
}
public List<Info> Read()
{
if (Cache.Get<List<Info>>(CacheKey) == null)
{
List<Info> infoList = Provider.Read<Info>();
foreach (Info info in infoList)
{
ModelIdHelper.GenerateId<Info>(info);
}
Cache.Add(CacheKey, infoList);
}
return Cache.Get<List<Info>>(CacheKey);
}
