/// <summary>
///
/// </summary>
public void ShowAverageForAllStudents()
{
var weeks = from l in _hwRepo.FindAll()
select l.DeadlineWeek - l.ReceivingWeek;
var totalWeeks = weeks.Sum();
var average = (from r in _grRepo.FindAll()
group r by r.GetStudId()
into studentGroup
select new
{
studentId = studentGroup.Key,
studName = _stRepo.FindOne(studentGroup.Key).Name,
studentFinalGrade = (from sg in studentGroup
from l in _hwRepo.FindAll()
where sg.GetHwId() == l.Id
select(l.DeadlineWeek -
l.ReceivingWeek) * sg.GradeValue
).Sum() / totalWeeks,
}
);
foreach (var a in average)
{
Console.WriteLine(a);
}
}
public static List <Category> FindAll(AbstractRepository repo)
{
return(repo.FindAll <Category>());
}
/// <summary>
/// Function to get all homework from the repository
/// </summary>
/// <returns>an IEnumerable containing all homework from the repository</returns>
public IEnumerable <Homework> GetAllHomework()
{
return(_hwRepo.FindAll());
}
public static List <Format> FindAll(AbstractRepository repo)
{
return(repo.FindAll <Format>());
}
/// <summary>
/// Function to get all the grades from the repository
/// </summary>
/// <returns>IEnumerable containing all grades from the repository</returns>
public IEnumerable <Grade> GetAllGrades()
{
return(_grRepo.FindAll());
}
/// <summary>
/// Function to get all students as Enumerable
/// </summary>
/// <returns>Returns an Enumerable containing all students</returns>
public IEnumerable <Student> GetAllStudents()
{
return(_studRepo.FindAll());
}
