/// <summary>
/// 获取主题总数(有缓存)
/// </summary>
/// <param name="cid">竞赛ID</param>
/// <param name="pid">题目ID</param>
/// <returns>主题总数</returns>
private static Int32 CountForumTopics(String cid, String pid)
{
ForumTopicType type = ForumTopicManager.GetForumTopicType(cid, pid);
Int32 relativeID = ForumTopicManager.GetRelativeID(cid, pid);
Int32 recordCount = ForumTopicCache.GetForumTopicCountCache(type, relativeID);//获取缓存
if (recordCount < 0)
{
recordCount = ForumTopicRepository.Instance.CountEntities(type, relativeID, false);
ForumTopicCache.SetForumTopicCountCache(type, relativeID, recordCount);//设置缓存
}
return(recordCount);
}
/// <summary>
/// 获取主题列表
/// </summary>
/// <param name="pageIndex">页面索引</param>
/// <param name="cid">竞赛ID</param>
/// <param name="pid">题目ID</param>
/// <returns>主题列表</returns>
public static PagedList <ForumTopicEntity> GetForumTopicList(Int32 pageIndex, String cid, String pid)
{
ForumTopicType type = ForumTopicManager.GetForumTopicType(cid, pid);
Int32 relativeID = ForumTopicManager.GetRelativeID(cid, pid);
if (type == ForumTopicType.Problem && !ProblemManager.InternalExistsProblem(relativeID))
{
throw new InvalidRequstException(RequestType.Problem);
}
else if (type == ForumTopicType.Contest && !ContestManager.InternalExistsContest(relativeID))
{
throw new InvalidRequstException(RequestType.Contest);
}
Int32 pageSize = ForumTopicManager.FORUM_PAGE_SIZE;
Int32 recordCount = ForumTopicManager.CountForumTopics(cid, pid);
return(ForumTopicRepository.Instance
.GetEntities(pageIndex, pageSize, recordCount, type, relativeID, false)
.ToPagedList(pageSize, recordCount));
}
/// <summary>
/// 发布新主题
/// </summary>
/// <param name="topic">主题实体</param>
/// <param name="cid">竞赛ID</param>
/// <param name="pid">题目ID</param>
/// <param name="content">主题帖内容</param>
/// <param name="postip">发布者IP</param>
/// <returns>是否成功发布</returns>
public static Boolean InsertForumTopic(ForumTopicEntity topic, String cid, String pid, String content, String postip)
{
if (!UserManager.IsUserLogined)
{
throw new UserUnLoginException();
}
if (String.IsNullOrEmpty(topic.Title))
{
throw new InvalidInputException("Topic title can not be NULL!");
}
if (topic.Title.Length > ForumPostRepository.TITLE_MAXLEN)
{
throw new InvalidInputException("Topic title is too long!");
}
if (!KeywordsFilterManager.IsForumPostContentLegal(topic.Title))
{
throw new InvalidInputException("Topic title can not contain illegal keywords!");
}
if (String.IsNullOrEmpty(content) || content.Length < ForumPostRepository.POST_MINLEN)
{
throw new InvalidInputException("Topic content is too short!");
}
if (content.Length > ForumPostRepository.POST_MAXLEN)
{
throw new InvalidInputException("Topic content is too long!");
}
if (!KeywordsFilterManager.IsForumPostContentLegal(content))
{
throw new InvalidInputException("Topic content can not contain illegal keywords!");
}
if (!UserSubmitStatus.CheckLastSubmitForumPostTime(UserManager.CurrentUserName))
{
throw new InvalidInputException(String.Format("You can not submit post more than twice in {0} seconds!", ConfigurationManager.SubmitInterval.ToString()));
}
topic.Type = ForumTopicManager.GetForumTopicType(cid, pid);
topic.RelativeID = (topic.Type == ForumTopicType.Default ? 0 : ForumTopicManager.GetRelativeID(cid, pid));
if (topic.Type == ForumTopicType.Problem && !ProblemManager.InternalExistsProblem(topic.RelativeID))
{
throw new InvalidRequstException(RequestType.Problem);
}
else if (topic.Type == ForumTopicType.Contest && !ContestManager.InternalExistsContest(topic.RelativeID))
{
throw new InvalidRequstException(RequestType.Contest);
}
topic.UserName = UserManager.CurrentUserName;
topic.LastDate = DateTime.Now;
topic.Title = HtmlEncoder.HtmlEncode(topic.Title);
content = HtmlEncoder.HtmlEncode(content);
Boolean success = ForumTopicRepository.Instance.InsertEntity(topic, content, postip) > 0;
if (success)
{
ForumTopicCache.IncreaseForumTopicCountCache(topic.Type, topic.RelativeID);//更新缓存
if (topic.Type == ForumTopicType.Problem)
{
ForumTopicCache.IncreaseForumTopicCountCache(ForumTopicType.Default, 0);//更新缓存
}
}
return(success);
}