private IEnumerable <ConcurentResultDTO> GetConcurents(ConcurentModel model, IEnumerable <UserProfile> allStudents, Func <int, int, int> GetTotalRatingFunc, int divisionId)
{
List <ConcurentResultDTO> concurents = new List <ConcurentResultDTO>();
double total = GetTotalRatingFunc(model.StudentId, divisionId);
if (model.SkipCount < 0)
{
foreach (var u in allStudents)
{
concurents.Add(new ConcurentResultDTO {
UserProfile = u, RatingValue = GetTotalRatingFunc(u.Id, divisionId)
});
}
concurents = concurents.Where(c => c.RatingValue > total).OrderBy(c => c.RatingValue).Skip(Math.Abs(model.SkipCount + model.TakeCount)).Take(model.TakeCount).OrderByDescending(c => c.RatingValue).ToList();
}
else
{
foreach (var u in allStudents)
{
concurents.Add(new ConcurentResultDTO {
UserProfile = u, RatingValue = GetTotalRatingFunc(u.Id, divisionId)
});
}
concurents = concurents.Where(c => c.RatingValue <= total).OrderByDescending(c => c.RatingValue).Skip(model.SkipCount).Take(model.TakeCount).ToList();
}
return(concurents.AsEnumerable());
}
public List <ConcurentResultDTO> SearchConcurents(ConcurentModel model)
{
if (model != null)
{
return(services.SearchService.SearchConcurents(model, services.StatisticService).ToList());
}
return(null);
}
public IEnumerable <ConcurentResultDTO> SearchConcurents(ConcurentModel model, IStatisticService statisticService)
{
IEnumerable <UserProfile> allStudents = Database.UserRepository.Find(u =>
u.UniversityId == model.UniversityId &&
(model.FacultyId != null ? u.FacultyId == model.FacultyId : true) &&
(model.CourseId != null ? u.CourseId == model.CourseId : true));
if (model.DisciplineBranchId == null)
{
if (model.StudentRatingType == StudentRatingType.Average)
{
return(GetConcurents(model, allStudents, (Func <int, int, double>)statisticService.GetAverageRatingByDivision, 1));
}
else if (model.StudentRatingType == StudentRatingType.Overall)
{
return(GetConcurents(model, allStudents, (Func <int, int>)statisticService.GetTotalRating));
}
else if (model.StudentRatingType == StudentRatingType.Olympiads)
{
return(GetConcurents(model, allStudents, (Func <int, int, int>)statisticService.GetTotalRatingByDivision, 2));
}
}
else if (model.DisciplineId == null)
{
if (model.StudentRatingType == StudentRatingType.Average)
{
return(GetConcurents(model, allStudents, (Func <int, int, int, double>)statisticService.GetAverageRatingByBranchDivision, 1));
}
else if (model.StudentRatingType == StudentRatingType.Overall)
{
return(GetConcurents(model, allStudents, statisticService.GetTotalRatingByBranch));
}
else if (model.StudentRatingType == StudentRatingType.Olympiads)
{
return(GetConcurents(model, allStudents, (Func <int, int, int, int>)statisticService.GetTotalRatingByBranchDivision, 2));
}
}
else
{
if (model.StudentRatingType == StudentRatingType.Average)
{
return(GetConcurents(model, allStudents, (Func <int, int, int, int, double>)statisticService.GetAverageRatingByBranchDisciplineDivision, 1));
}
else if (model.StudentRatingType == StudentRatingType.Overall)
{
return(GetConcurents(model, allStudents, statisticService.GetTotalRatingByBranchDiscipline));
}
else if (model.StudentRatingType == StudentRatingType.Olympiads)
{
return(GetConcurents(model, allStudents, (Func <int, int, int, int, int>)statisticService.GetTotalRatingByBranchDisciplineDivision, 2));
}
}
return(null);
}
