/// <summary>
/// 修改Problem内容 把 Name OriginRating Content Comparer DataChecker Owner DataCheckerLanguage ComparerLanguage 更新
/// </summary>
/// <exception cref="UserNotLoginException"></exception>
/// <exception cref="PermissionDeniedException"></exception>
/// <exception cref="UserNotFoundException"></exception>
/// <exception cref="ProblemNameExistedException"></exception>
public void Change()
{
if(null==User.CurrentUser)
throw new UserNotLoginException();
if (!contest.Owner.Contains(User.CurrentUser.name) &&
!User.CurrentUser.IsAdmin)
throw new PermissionDeniedException();
using (var db = new CHDB())
{
Name = Helper.GetLegalName(Name);
var pro = (from p in db.PROBLEMs
where p.ID==ID
select p).Single();
var owner = (from u in db.USERs
where u.Name == Owner
select u).SingleOrDefault();
if (null == owner)
throw new UserNotFoundException();
if (pro.Name != Name && (from p in db.PROBLEMs
where p.Name == Name && p.CONTEST1.ID == contest.ID
select p).Any())
throw new ProblemNameExistedException();
pro.Name = Name;
pro.OriginRating = OriginRating;
pro.Content = Content;
pro.Comparer = Comparer;
pro.DataChecker = DataChecker;
pro.OWNER = owner;
pro.DataCheckerLanguage = (int)DataCheckerLanguage;
pro.ComparerLanguage = (int)ComparerLanguage;
db.SaveChanges();
}
}
/// <summary>
/// 增加一组测试数据
/// </summary>
/// <param name="testcase"></param>
/// <exception cref="UserNotLoginException"></exception>
/// <exception cref="PermissionDeniedException"></exception>
public Guid AddTestCase(TestCase testCase)
{
if (null == User.CurrentUser)
throw new UserNotLoginException();
if (!contest.Owner.Contains(User.CurrentUser.name) &&
!User.CurrentUser.IsAdmin)
throw new PermissionDeniedException();
using (var db = new CHDB())
{
var result = db.TESTDATAs.Add(new TESTDATA()
{
ID = Guid.NewGuid(),
Input = testCase._Input,
Data = testCase._Data,
TimeLimit = testCase.TimeLimit,
MemoryLimit = testCase.MemoryLimit,
PROBLEM1 = (from p in db.PROBLEMs
where p.ID == ID
select p).Single(),
Available = testCase.Available
});
db.SaveChanges();
return result.ID;
}
}
/// <summary>
/// 获得所有用户组
/// </summary>
/// <returns></returns>
/// <exception cref="PermissionDeniedException"></exception>
public static List<Group> All()
{
CheckPriviledge();
using(var db = new CHDB())
{
return (from g in db.GROUPs
select new Group
{
Name = g.Name,
ID = g.ID
}).ToList();
}
}
/// <summary>
/// 增加用户组 需要填充 Name
/// </summary>
/// <param name="name"></param>
/// <exception cref="PermissionDeniedException"></exception>
public static void Add(Group group)
{
CheckPriviledge();
using (var db = new CHDB())
{
db.GROUPs.Add(new GROUP()
{
ID = Guid.NewGuid(),
Name =group.Name
});
db.SaveChanges();
}
}
/// <summary>
/// 获取公共聊天区内容
/// </summary>
/// <param name="Before"></param>
/// <param name="top"></param>
/// <returns></returns>
public static List<Message> GetHistory(Session Session, DateTime Before, int top)
{
using (var db = new CHDB())
{
return (from r in db.MESSAGEs
where r.Session == Session.ID
&& r.Time < Before
orderby r.Time descending
select new Message()
{
Content = r.Content,
Time = r.Time,
Username = r.USER1.Name
}).Take(top).ToList();
}
}
/// <summary>
/// 返回指定名称的用户组
/// </summary>
/// <param name="name"></param>
/// <returns></returns>
/// <exception cref="PermissionDeniedException"></exception>
/// <exception cref="GroupNotFoundException"></exception>
public static Group ByName(string name)
{
CheckPriviledge();
using (var db = new CHDB())
{
var result = (from g in db.GROUPs
where g.Name == name
select new Group
{
Name = g.Name,
ID = g.ID
}).SingleOrDefault();
if (null == result)
throw new GroupNotFoundException();
return result;
}
}
protected override int Run()
{
bool flg = false;
var testers = (from t in Framework.tester
where t.HuntList.Count < 3 && t.RecList.Count < 3
select t).ToArray();
for (int i = 0; i < testers.Length; i++)
{
var x = testers[i];
int p = rand.Next(testers.Length);
testers[i] = testers[p];
testers[p] = x;
}
using (var db = new CHDB())
{
foreach (var tester in testers)
{
var rec = (from r in db.RECORDs
where r.Status == (int)Record.StatusType.Pending
select r).FirstOrDefault();
if (null != rec)
{
flg = true;
rec.Status = (int)Record.StatusType.Running;
db.SaveChanges();
tester.RecList.Add(rec.ID);
}
var hu = (from h in db.HUNTs
where h.Status == (int)Hunt.StatusType.Pending
select h).FirstOrDefault();
if (null != hu)
{
flg = true;
hu.Status = (int)Hunt.StatusType.Running;
db.SaveChanges();
tester.HuntList.Add(hu.ID);
}
}
}
if (flg)
return 0;
return 3000;
}
/// <summary>
/// 获取私聊会话
/// </summary>
/// <param name="name">要私聊用户名称</param>
/// <returns></returns>
public static Session GetPrivateSession(string name)
{
using (var db = new CHDB())
{
var u1 = (from u in db.USERs
where u.Name == name
select u).Single();
var u2 = (from u in db.USERs
where u.ID == User.CurrentUser.ID
select u).Single();
var ret = (from s in u2.SESSIONs
where s.USERs.Select(x => x.Name).Contains(name)
&& s.Type == (int)SessionType.PrivateChat
select new Session()
{
ID = s.ID,
Name = s.Name,
Type = SessionType.PrivateChat
}).FirstOrDefault();
if (null == ret)
{
var session = db.SESSIONs.Add(new SESSION()
{
ID = Guid.NewGuid(),
Name = "",
Type = (int)SessionType.PrivateChat
});
session.USERs.Add(u1);
session.USERs.Add(u2);
db.SaveChanges();
return new Session()
{
ID = session.ID,
Type = SessionType.PrivateChat
};
}
return ret;
}
}
public static void DomainStart()
{
using (var db = new CHDB())
{
HuntBadWating(db);
RecordBadWating(db);
Group.AdministratorID = (from g in db.GROUPs
where g.Name == "Administrators"
select g.ID).Single();
}
contest.Start();
foreach (var akinfo in AllKorrectDaemon.aks)
{
var ak = new AllKorrectDaemon()
{
_ak = akinfo
};
ak.Start();
tester.Add(ak);
}
dispatcher.Start();
email.Start();
}
public static void DomainInstallation()
{
using (var db = new CHDB())
{
db.GROUPs.Add(new GROUP()
{
ID = Guid.NewGuid(),
Name = "Administrators"
});
using (var sha = SHA256.Create())
{
db.USERs.Add(new USER()
{
ID = Guid.NewGuid(),
Name = "Administrator",
Email = "*****@*****.**",
Password = sha.ComputeHash(Encoding.Unicode.GetBytes("07070078899"))
});
}
db.SaveChanges();
(from u in db.USERs
where u.Name == "Administrator"
select u).Single().GROUPs.Add
(
(from g in db.GROUPs
where g.Name == "Administrators"
select g).Single()
);
db.SESSIONs.Add(new SESSION()
{
ID = Guid.Empty,
Name = "公共版聊",
Type = (int)Chat.SessionType.CommonChat
});
db.SaveChanges();
}
}
/// <summary>
/// 取消参加比赛
/// </summary>
/// <exception cref="UserNotLoginException"></exception>
/// <exception cref="NotAttendedContestException"></exception>
/// <exception cref="ContestStartedException"></exception>
public void Disattended()
{
if (null == User.CurrentUser)
throw new UserNotLoginException();
if (!IsAttended())
throw new NotAttendedContestException();
using (var db = new CHDB())
{
var con = (from c in db.CONTESTs
where c.ID==ID
select c).Single();
var con_att = (from u in con.CONTEST_ATTEND
where u.USER1.Name == User.CurrentUser.name
select u).Single();
if (DateTime.Now > RelativeStartTime)
throw new ContestStartedException();
con.CONTEST_ATTEND.Remove(con_att);
db.SaveChanges();
}
}
/// <summary>
/// 修改Contest信息
/// </summary>
/// <exception cref="UserNotLoginException"></exception>
/// <exception cref="PermissionDeniedException"></exception>
/// <exception cref="ContestNameExistedException"></exception>
public void Change()
{
if (null == User.CurrentUser)
throw new UserNotLoginException();
if (!Owner.Contains(User.CurrentUser.name) &&
!User.CurrentUser.IsAdmin)
throw new PermissionDeniedException();
using (var db = new CHDB())
{
var con = (from c in db.CONTESTs
where c.ID==ID
select c).Single();
if (IsOfficial != con.IsOfficial && !User.CurrentUser.IsAdmin &&
User.ByName(User.CurrentUser.name).Rating < 2100)
throw new PermissionDeniedException();
Name = Helper.GetLegalName(Name);
if (con.Name != Helper.GetLegalName(Name))
{
if ((from c in db.CONTESTs
where c.Name == Name
select c).Any())
throw new ContestNameExistedException();
con.Name = Name;
}
con.Description = Description;
if (Owner != Owners)
{
con.OWNERs.Clear();
foreach (var name in Owners)
{
con.OWNERs.Add((from u in db.USERs
where u.Name == name
select u).Single());
}
}
con.IsOfficial = IsOfficial;
con.StartTime = AbsoluteStartTime;
con.EndTime = AbsoluteEndTime;
con.Type = (int)Type;
if (User.CurrentUser.IsAdmin)
con.Weight = Weight;
db.SaveChanges();
}
}
public void SendEamil(string message)
{
if(null == User.CurrentUser)
throw new UserNotLoginException();
if(!User.CurrentUser.IsAdmin && !Owner.Contains(User.CurrentUserName))
throw new PermissionDeniedException();
using (var db = new CHDB())
{
var Info = (from u in db.USERs
where u.AcceptEmail
select new
{
u.Name,
u.Email
}).ToArray();
string Subject = "ContestHunter将举办 " + Name + " ，欢迎参加！";
string link = ConfigurationManager.AppSettings["WebSite"] + "Contest/Show/" + Name;
lock (SendMailDaemon.EmailList)
{
foreach (var info in Info)
{
try
{
string Body = info.Name + "：<br /> 您好。" + HttpUtility.HtmlEncode(Name) + " 将于 " + AbsoluteStartTime + " 在ContestHunter举办。欢迎您访问 <a href=\"" + HttpUtility.HtmlAttributeEncode(link) + "\">" + HttpUtility.HtmlEncode(link) + "</a> 报名参加。<br />" +
"本次比赛持续 " + (AbsoluteEndTime - AbsoluteStartTime) + " ，采用 " + Type + " 赛制，由 " + string.Join(",", Owner) + " 举办，<b>" + (IsOfficial ? "" : "不") + "计入</b>能力排名。<br />" +
"<br /> 诚邀您及时报名参加本场比赛。如果您不希望再收到此类邮件，可以在修改个人资料页面取消。" +
(string.IsNullOrWhiteSpace(message) ? "" : HttpUtility.HtmlEncode(message));
SendMailDaemon.EmailList.Add(new SendMailDaemon.Email()
{
subject = Subject,
to = info.Email,
content = Body
});
}
catch { }
}
}
}
}
/// <summary>
/// 删除本比赛，只有 Administrators 组有此权限
/// </summary>
/// <exception cref="PermissionDeniedException"></exception>
public void Remove()
{
if (!User.CurrentUser.IsAdmin)
throw new PermissionDeniedException();
using (var db = new CHDB())
{
db.CONTESTs.Remove((from c in db.CONTESTs
where c.ID == ID
select c).Single());
db.SaveChanges();
}
}
/// <summary>
/// 获取比赛题目名称列表
/// </summary>
/// <returns></returns>
/// <exception cref="UserNotLoginException"></exception>
/// <exception cref="NotAttendedContestException"></exception>
public List<string> Problems()
{
if (null == User.CurrentUser)
throw new UserNotLoginException();
if (!Owner.Contains(User.CurrentUser.name) && !User.CurrentUser.IsAdmin)
{
if (!IsAttended())
throw new NotAttendedContestException();
}
using (var db = new CHDB())
{
return (from p in db.PROBLEMs
where p.CONTEST1.ID==ID
orderby p.OriginRating,p.Name ascending
select p.Name).ToList();
}
}
/// <summary>
/// 判断是否报名比赛
/// </summary>
/// <returns></returns>
/// <exception cref="UserNotLoginException"></exception>
public bool IsAttended()
{
if (null == User.CurrentUser)
throw new UserNotLoginException();
using (var db = new CHDB())
{
return (from u in
(from c in db.CONTESTs
where c.ID==ID
select c).Single().CONTEST_ATTEND
where u.USER1.Name == User.CurrentUser.name
select u).Any();
}
}
/// <summary>
/// 返回CF比赛Standing
/// </summary>
/// <param name="skip"></param>
/// <param name="top"></param>
/// <param name="HasVirtual"></param>
/// <returns></returns>
/// <exception cref="ContestTypeMismatchException"></exception>
public List<CFStanding> GetCFStanding(int skip, int top, bool HasVirtual,bool HasNotSubmit)
{
if (Type != ContestType.CF)
throw new ContestTypeMismatchException();
List<CFStanding> ret=new List<CFStanding>();
var Probs=Problems();
using (var db = new CHDB())
{
var raw = db.GetCFStanding(ID, RelativeNow,skip, top, HasVirtual, HasNotSubmit).ToArray();
for (int i = 0; i < raw.Length; i += Probs.Count())
{
var desp = new List<CFStanding.DescriptionClass>();
for (int jj = 0; jj < Probs.Count(); jj++)
{
int j = i + jj;
desp.Add(new CFStanding.DescriptionClass()
{
_huntFailed=(int)raw[j].FailedHunt,
_huntSuccessfully=(int)raw[j].SuccessfulHunt,
ACTime=raw[j].ACTime,
isAC=(bool)raw[j].IsAC,
FailedTimes=(int)raw[j].FailedTimes,
Rating=(int)raw[j].Rating
});
}
var entity = new CFStanding()
{
Description = desp,
FailedHack = desp.Sum(x => x._huntFailed),
SuccessHack = desp.Sum(x => x._huntSuccessfully),
User = raw[i].User,
TotalRating = desp.Sum(x => x.Rating),
IsVirtual = raw[i].Type == (int)AttendType.Virtual
};
entity.TotalRating = entity.TotalRating + 100 * entity.SuccessHack - 25 * entity.FailedHack;
ret.Add(entity);
}
}
return ret;
}
/*
public override bool Equals(object obj)
{
if (obj is Contest)
return Name == ((Contest)obj).Name;
return base.Equals(obj);
}
*/
/// <summary>
/// 返回ACM比赛Standing
/// </summary>
/// <param name="skip"></param>
/// <param name="top"></param>
/// <param name="HasVirtual"></param>
/// <returns></returns>
/// <exception cref="ContestTypeMismatchException"></exception>
public List<ACMStanding> GetACMStanding(int skip, int top,bool HasVirtual,bool HasNotSubmit)
{
if (Type != ContestType.ACM)
throw new ContestTypeMismatchException();
using (var db = new CHDB())
{
var lst = db.GetACMStanding(ID, RelativeNow, skip, top, HasVirtual, HasNotSubmit).ToArray();
int count = Problems().Count();
var ret = new List<ACMStanding>();
for (int i = 0; i < lst.Length; i += count)
{
var desp = new List<ACMStanding.DescriptionClass>();
for (int jj = 0; jj < count; jj++)
{
int j = i + jj;
desp.Add(new ACMStanding.DescriptionClass()
{
ACTime = lst[j].ACTime,
FailedTimes = (int)lst[j].FailedTimes,
isAC = (bool)lst[j].IsAC
});
}
ret.Add(new ACMStanding()
{
CountAC = desp.Sum(x => x.isAC ? 1 : 0),
Description = desp,
IsVirtual = lst[i].Type == (int)AttendType.Virtual,
TotalTime = desp.Sum(x => x.isAC ? (int)x.ACTime + 20 * x.FailedTimes : 0),
User = lst[i].User
});
}
return ret;
}
}
/// <summary>
/// 判断是否为虚拟报名此比赛
/// </summary>
/// <returns></returns>
/// <exception cref="UserNotLoginException"></exception>
/// <exception cref="NotAttendedContestException"></exception>
public AttendType GetAttendType()
{
if (null == User.CurrentUser)
throw new UserNotLoginException();
if (!IsAttended())
throw new NotAttendedContestException();
using (var db = new CHDB())
{
var con_att = (from c in db.CONTESTs
where c.ID==ID
select c.CONTEST_ATTEND).Single();
return (AttendType)(from u in con_att
where u.USER1.Name == User.CurrentUser.name
select u.Type).Single();
}
}
/// <summary>
/// 返回 Pending 比赛个数
/// </summary>
/// <returns></returns>
public static int PendingCount()
{
using (var db = new CHDB())
{
return (from c in db.CONTESTs
where c.StartTime > DateTime.Now
select c).Count();
}
}
/// <summary>
/// 返回OI比赛Standing
/// </summary>
/// <param name="skip"></param>
/// <param name="top"></param>
/// <param name="HasVirtual"></param>
/// <returns></returns>
/// <exception cref="ContestTypeMismatchException"></exception>
/// <exception cref="ContestNotEndedException"></exception>
public List<OIStanding> GetOIStanding(int skip, int top,bool HasVirtual,bool HasNotSubmit)
{
if (Type != ContestType.OI)
throw new ContestTypeMismatchException();
using (var db = new CHDB())
{
var con = (from c in db.CONTESTs
where c.ID==ID
select c).Single();
if (DateTime.Now <= RelativeEndTime && !User.CurrentUser.IsAdmin && !Owner.Contains(User.CurrentUserName))
throw new ContestNotEndedException();
int count = Problems().Count();
var lst = db.GetOIStanding(ID, RelativeNow, skip, top, HasVirtual, HasNotSubmit).ToArray();
var ret = new List<OIStanding>();
for (int i = 0; i < lst.Length; i+=count)
{
var desp=new List<OIStanding.DescriptionClass>();
for (int jj = 0; jj < count; jj++)
{
int j = i + jj;
desp.Add(new OIStanding.DescriptionClass()
{
ExecTime = lst[j].ExecuteTime ?? 0,
Score = lst[j].Score ?? 0,
IsScored = null != lst[j].Score
});
}
ret.Add(new OIStanding()
{
IsVirtual = lst[i].Type == (int)AttendType.Virtual,
desp = desp,
TotalScore = desp.Sum(x => x.Score),
TotalTime = desp.Sum(x => x.ExecTime),
User = lst[i].User
});
}
return ret;
}
}
/// <summary>
/// 返回正在进行的比赛列表
/// </summary>
/// <param name="skip"></param>
/// <param name="top"></param>
/// <returns></returns>
public static List<Contest> Testing(int skip, int top)
{
using (var db = new CHDB())
{
var cons = (from contest in db.CONTESTs
where contest.StartTime <= DateTime.Now && contest.EndTime >= DateTime.Now
select contest
).OrderBy(x => x.StartTime).Skip(skip).Take(top).ToList();
List<Contest> Ret=new List<Contest>();
foreach (var c in cons)
{
var Own = (from u in c.OWNERs
select u.Name).ToList();
Ret.Add(new Contest
{
ID = c.ID,
Name = c.Name,
Description = c.Description,
Type = (ContestType)c.Type,
RelativeStartTime = c.StartTime,
RelativeEndTime = c.EndTime,
IsOfficial = c.IsOfficial,
Owner = Own,
Owners = Own
});
}
return Ret;
}
}
/// <summary>
/// 获得相应比赛的指定名称的题目
/// </summary>
/// <param name="name"></param>
/// <returns></returns>
/// <exception cref="ProblemNotFoundException"></exception>
public Problem ProblemByName(string name)
{
bool privillege = true;
bool Admin = false;
using (var db = new CHDB())
{
if (null == User.CurrentUser)
{
privillege = false;
}
else
{
if (!Owner.Contains(User.CurrentUser.name) && !User.CurrentUser.IsAdmin)
{
var con = (from c in db.CONTESTs
where c.ID == ID
select c).Single();
if (!IsAttended())
{
privillege = false;
}
else
{
if (DateTime.Now < RelativeStartTime)
privillege = false;
}
}
else
Admin = true;
}
var result = (from p in db.PROBLEMs
where p.Name == name && p.CONTEST1.ID==ID
select p).SingleOrDefault();
if (null == result)
throw new ProblemNotFoundException();
return new Problem()
{
Name = result.Name,
Content = privillege ? result.Content : null,
Comparer = Admin ? result.Comparer : null,
ID = result.ID,
Contest = result.CONTEST1.Name,
OriginRating = result.OriginRating,
DataChecker = Admin ? result.DataChecker : null,
DataCheckerLanguage = Admin ? ((Record.LanguageType?)result.DataCheckerLanguage) : null,
ComparerLanguage = Admin ? ((Record.LanguageType?)result.ComparerLanguage) : null,
Owner = result.OWNER.Name,
contest = this,
privillege = privillege
};
}
}
/// <summary>
/// 返回 Testing 比赛个数
/// </summary>
/// <returns></returns>
public static int TestingCount()
{
using (var db = new CHDB())
{
return (from c in db.CONTESTs
where c.StartTime <= DateTime.Now && c.EndTime >= DateTime.Now
select c).Count();
}
}
/// <summary>
/// 重新计算Rating
/// </summary>
/// <exception cref="UserNotLoginException"></exception>
/// <exception cref="PermissionDeniedException"></exception>
public void ReCalcRating()
{
if (null == User.CurrentUser)
throw new UserNotLoginException();
if (!User.CurrentUser.IsAdmin && !Owner.Contains(User.CurrentUserName))
throw new PermissionDeniedException();
using (var db = new CHDB())
{
foreach (var r in (from r in db.RATINGs
where r.CONTEST1.ID == ID
select r))
db.RATINGs.Remove(r);
(from c in db.CONTESTs
where c.ID == ID
select c).Single().Status = (int)StatusType.BeforeFinalTest;
db.SaveChanges();
}
}
/// <summary>
/// 添加题目 所有赛制必须填充 Name,Content,Comparer,Owner,DataChecker CF赛制还须填充OriginRating
/// </summary>
/// <param name="problem"></param>
/// <exception cref="UserNotLoginException"></exception>
/// <exception cref="PermissionDeniedException"></exception>
/// <exception cref="ProblemNameExistedException"></exception>
/// <exception cref="UserNotFoundException"></exception>
public void AddProblem(Problem problem)
{
if (null == User.CurrentUser)
throw new UserNotLoginException();
if (!Owner.Contains(User.CurrentUser.name)
&& !User.CurrentUser.IsAdmin)
throw new PermissionDeniedException();
using (var db = new CHDB())
{
problem.Name = Helper.GetLegalName(problem.Name);
if ((from p in db.PROBLEMs
where p.Name == problem.Name && p.CONTEST1.ID==ID
select p).Any())
throw new ProblemNameExistedException();
var owner = (from u in db.USERs
where u.Name == problem.Owner
select u).SingleOrDefault();
if (null == owner)
throw new UserNotFoundException();
db.PROBLEMs.Add(new PROBLEM()
{
ID = Guid.NewGuid(),
Name = problem.Name,
Content = problem.Content,
Comparer = problem.Comparer,
ComparerLanguage = (int)problem.ComparerLanguage,
OriginRating = problem.OriginRating,
DataChecker = problem.DataChecker,
DataCheckerLanguage = (int)problem.DataCheckerLanguage,
CONTEST1 = (from c in db.CONTESTs
where c.ID == ID
select c).Single(),
OWNER = owner
});
db.SaveChanges();
}
}
/// <summary>
/// 删除指定名称的题目
/// </summary>
/// <param name="name"></param>
/// <exception cref="ContestNotStartedException"></exception>
/// <exception cref="UserNotLoginException"></exception>
/// <exception cref="ProblemNotFoundException"></exception>
public void RemoveProblem(string name)
{
if (null == User.CurrentUser)
throw new UserNotLoginException();
if (!Owner.Contains(User.CurrentUser.name)
&& !User.CurrentUser.IsAdmin)
throw new PermissionDeniedException();
using (var db = new CHDB())
{
var prob = (from p in db.PROBLEMs
where p.Name == name && p.CONTEST1.ID==ID
select p).SingleOrDefault();
if (null == prob)
throw new ProblemNotFoundException();
db.PROBLEMs.Remove(prob);
db.SaveChanges();
}
}
/// <summary>
/// 获得比赛报名名单
/// </summary>
/// <param name="skip"></param>
/// <param name="top"></param>
/// <returns></returns>
public List<string> AttendedUsers(int skip, int top)
{
using (var db = new CHDB())
{
return (from u in
(from c in db.CONTESTs
where c.ID==ID
select c.CONTEST_ATTEND).Single()
orderby u.USER1.Name ascending
select u.USER1.Name).Skip(skip).Take(top).ToList();
}
}
/// <summary>
/// 虚拟报名比赛
/// </summary>
/// <param name="startTime"></param>
/// <exception cref="UserNotLoginException"></exception>
/// <exception cref="AlreadyAttendedContestException"></exception>
/// <exception cref="ContestNotStartedException"></exception>
/// <exception cref="VirtualStartTooEarlyException"></exception>
public void VirtualAttend(DateTime startTime)
{
if (null == User.CurrentUser)
throw new UserNotLoginException();
if (IsAttended())
throw new AlreadyAttendedContestException();
if (DateTime.Now <= RelativeStartTime)
throw new ContestNotStartedException();
if (DateTime.Now > startTime)
throw new VirtualStartTooEarlyException();
using (var db = new CHDB())
{
var con = (from c in db.CONTESTs
where c.ID==ID
select c).Single();
con.CONTEST_ATTEND.Add(new CONTEST_ATTEND()
{
USER1 = (from u in db.USERs
where u.ID == User.CurrentUser.ID
select u).Single(),
Type = (int)AttendType.Virtual,
Time = startTime
});
db.SaveChanges();
}
}
/// <summary>
/// 获得报名人数
/// </summary>
/// <returns></returns>
public int AttendedUsersCount()
{
using (var db = new CHDB())
{
return (from c in db.CONTESTs
where c.ID==ID
select c.CONTEST_ATTEND).Single().Count();
}
}
