/// <summary>
/// 根据ID得到一个竞赛实体
/// </summary>
/// <param name="id">竞赛ID</param>
/// <returns>竞赛实体</returns>
public static ContestEntity GetContest(Int32 id)
{
if (id < ContestRepository.NONECONTEST)
{
throw new InvalidRequstException(RequestType.Contest);
}
ContestEntity contest = ContestCache.GetContestCache(id);//获取缓存
if (contest == null)
{
contest = ContestRepository.Instance.GetEntity(id);
ContestCache.SetContestCache(contest);//设置缓存
}
if (contest == null)
{
throw new NullResponseException(RequestType.Contest);
}
if (contest.IsHide && !AdminManager.HasPermission(PermissionType.ContestManage))
{
throw new NoPermissionException("You have no privilege to view the contest!");
}
return(contest);
}
/// <summary>
/// 更新竞赛隐藏状态
/// </summary>
/// <param name="ids">竞赛ID列表</param>
/// <param name="isHide">隐藏状态</param>
/// <returns>是否成功更新</returns>
public static IMethodResult AdminUpdateContestIsHide(String ids, Boolean isHide)
{
if (!AdminManager.HasPermission(PermissionType.ContestManage))
{
throw new NoPermissionException();
}
if (!RegexVerify.IsNumericIDs(ids))
{
return(MethodResult.InvalidRequest(RequestType.Contest));
}
Boolean success = ContestRepository.Instance.UpdateEntityIsHide(ids, isHide) > 0;
if (!success)
{
return(MethodResult.FailedAndLog("No contest was {0}!", isHide ? "hided" : "unhided"));
}
ids.ForEachInIDs(',', id =>
{
ContestCache.RemoveContestCache(id);//删除缓存
});
ContestCache.RemoveContestListCountCache();//删除缓存
return(MethodResult.SuccessAndLog("Admin {1} contest, id = {0}", ids, isHide ? "hide" : "unhide"));
}
/// <summary>
/// 更新竞赛信息
/// </summary>
/// <param name="entity">对象实体</param>
/// <returns>是否成功更新</returns>
public static IMethodResult AdminUpdateContest(ContestEntity entity)
{
if (!AdminManager.HasPermission(PermissionType.ContestManage))
{
throw new NoPermissionException();
}
if (String.IsNullOrEmpty(entity.Title))
{
return(MethodResult.FailedAndLog("Contest title cannot be NULL!"));
}
if (String.IsNullOrEmpty(entity.Description))
{
return(MethodResult.FailedAndLog("Contest description cannot be NULL!"));
}
if (entity.StartTime >= entity.EndTime)
{
return(MethodResult.FailedAndLog("Start time must be less than end time!"));
}
if (entity.ContestType == ContestType.RegisterPrivate || entity.ContestType == ContestType.RegisterPublic)
{
if (!entity.RegisterStartTime.HasValue || !entity.RegisterEndTime.HasValue)
{
return(MethodResult.FailedAndLog("Register time cannot be NULL!"));
}
if (entity.RegisterStartTime >= entity.RegisterEndTime)
{
return(MethodResult.FailedAndLog("Register start time must be less than register end time!"));
}
if (entity.RegisterEndTime >= entity.StartTime)
{
return(MethodResult.FailedAndLog("Register end time must be less than contest start time!"));
}
}
entity.LastDate = DateTime.Now;
Boolean success = ContestRepository.Instance.UpdateEntity(entity) > 0;
if (!success)
{
return(MethodResult.FailedAndLog("No contest was updated!"));
}
ContestCache.RemoveContestCache(entity.ContestID); //删除缓存
ContestCache.RemoveContestListCountCache(); //删除缓存
return(MethodResult.SuccessAndLog("Admin update contest, id = {0}", entity.ContestID.ToString()));
}
/// <summary>
/// 获取公告总数(有缓存)
/// </summary>
/// <param name="passed">是否已过去的竞赛</param>
/// <returns>竞赛总数</returns>
public static Int32 CountContests(Boolean passed)
{
Int32 recordCount = ContestCache.GetContestListCountCache(passed);//获取缓存
if (recordCount < 0)
{
recordCount = ContestRepository.Instance.CountEntities(passed);
ContestCache.SetContestListCountCache(passed, recordCount);//设置缓存
}
return(recordCount);
}
/// <summary>
/// 获取竞赛排行
/// </summary>
/// <param name="entity">竞赛实体</param>
/// <returns>竞赛排行</returns>
public static List <RankItem> GetContestRanklist(ContestEntity entity)
{
List <RankItem> list = ContestCache.GetContestRankCache(entity.ContestID);
if (list == null)
{
list = new List <RankItem>();
Dictionary <String, RankItem> rank = SolutionRepository.Instance.GetContestRanklist(entity.ContestID, entity.StartTime);
foreach (RankItem userRank in rank.Values)
{
list.Add(userRank);
}
list.Sort();
ContestCache.SetContestRankCache(entity.ContestID, list);
}
return(list);
}