public async Task <ResultModel> DeleteContest([FromBody] ContestIdModel model)
{
var(user, privilege) = await GetUserPrivilegeAsync();
var ret = new ResultModel {
IsSucceeded = true
};
if (!HasTeacherPrivilege(privilege))
{
ret.IsSucceeded = false;
ret.ErrorMessage = "没有权限";
return(ret);
}
using (var db = new ApplicationDbContext(_dbContextOptions))
{
var contest = await db.Contest.FindAsync(model.Id);
if (contest == null)
{
ret.IsSucceeded = false;
ret.ErrorMessage = "比赛不存在";
return(ret);
}
db.Contest.Remove(contest);
await db.SaveChangesAsync();
return(ret);
}
}
public async Task <ContestIdModel> UpdateContestConfig([FromBody] ContestEditModel model)
{
var(user, privilege) = await GetUserPrivilegeAsync();
var ret = new ContestIdModel {
IsSucceeded = true
};
if (!HasTeacherPrivilege(privilege))
{
ret.IsSucceeded = false;
ret.ErrorMessage = "没有权限";
return(ret);
}
using (var db = new ApplicationDbContext(_dbContextOptions))
{
var contest = model.Id == 0 ? new Contest() : await db.Contest.FindAsync(model.Id);
if (contest == null)
{
ret.IsSucceeded = false;
ret.ErrorMessage = "比赛不存在";
return(ret);
}
contest.Name = model.Name;
contest.Config = JsonConvert.SerializeObject(model.Config);
contest.Description = model.Description;
contest.Hidden = model.Hidden;
contest.StartTime = model.StartTime;
contest.EndTime = model.EndTime;
contest.SpecifyCompetitors = model.SpecifyCompetitors;
contest.Password = model.Password;
if (model.Id == 0)
{
contest.UserId = user.Id;
await db.Contest.AddAsync(contest);
await db.SaveChangesAsync();
}
;
db.ContestRegister.RemoveRange(db.ContestRegister.Where(i => i.ContestId == contest.Id));
if (contest.SpecifyCompetitors)
{
foreach (var competitor in model.Competitors)
{
db.ContestRegister.Add(new ContestRegister {
ContestId = contest.Id, UserId = competitor.Id
});
}
}
if (!string.IsNullOrEmpty(model.ProblemSet))
{
var problemSet = model.ProblemSet.Trim().Split(';', StringSplitOptions.RemoveEmptyEntries).ToList().ConvertAll(i =>
{
if (int.TryParse(i.Trim(), out var t))
{
return(t);
}
return(0);
});
problemSet.RemoveAll(i => i == 0);
var dict = new Dictionary <int, ContestProblemConfig>();
foreach (var i in db.ContestProblemConfig.Where(i => i.ContestId == contest.Id))
{
if (problemSet.Contains(i.ProblemId))
{
dict[i.ProblemId] = new ContestProblemConfig
{
ContestId = i.ContestId,
AcceptCount = i.AcceptCount,
ProblemId = i.ProblemId,
SubmissionCount = i.SubmissionCount
};
}
db.ContestProblemConfig.Remove(i);
}
foreach (var pid in problemSet)
{
if (db.Problem.Any(i => i.Id == pid))
{
if (dict.ContainsKey(pid))
{
db.ContestProblemConfig.Add(dict[pid]);
}
else
{
db.ContestProblemConfig.Add(new ContestProblemConfig {
ProblemId = pid, ContestId = contest.Id, AcceptCount = 0, SubmissionCount = 0
});
}
}
}
}
else
{
db.ContestProblemConfig.RemoveRange(db.ContestProblemConfig.Where(i => i.ContestId == contest.Id));
}
await db.SaveChangesAsync();
ret.Id = contest.Id;
return(ret);
}
}