public void UpdateRating(int winnerId, int loserId)
{
var ids = new[] { winnerId, loserId };
var winner = _repository.Images.Untracked
.Where(x => x.Id == winnerId)
.Select(x => new { Image = x, Wins = x.Wins.Count, Losses = x.Losses.Count })
.Single();
var loser = _repository.Images.Untracked
.Where(x => x.Id == loserId)
.Select(x => new { Image = x, Wins = x.Wins.Count, Losses = x.Losses.Count })
.Single();
winner.Image.Rating = _rating.GetRating(winner.Wins + 1, winner.Losses);
winner.Image.Sort = _sort.GetSortValue(winner.Wins + 1, winner.Losses);
loser.Image.Rating = _rating.GetRating(winner.Wins, winner.Losses + 1);
loser.Image.Sort = _sort.GetSortValue(winner.Wins, winner.Losses + 1);
_repository.Ratings.Insert(new Rating
{
Added = DateTime.Now,
WinnerId = winner.Image.Id,
LoserId = loser.Image.Id
});
_repository.Images.Update(new[] { winner.Image, loser.Image });
}
public AddEditStudentWindow(Student student, IRatingCalculator calculator)
{
InitializeComponent();
_calculator = calculator;
if (student != null)
{
Title = "Edit student";
textBoxName.Text = student.Name;
dataGridGrades.ItemsSource = student.Grades;
textBlockRating.Text = $"Rating: {_calculator.GetRating(student)}";
}
else
{
Title = "Add course";
}
textBoxName.Focus();
Student = student;
}