private async Task<float> GetAverageForType(ApplicationUser student, IEnumerable<WorkItem> workItems, WorkItemType type, GradeDistribution distribution)
{
var scoreUnitManager = new ScoreUnitManager(_db);
var workItemsForType = workItems.Where(wi => wi.Type == type);
var PointsForType = MaxPointsForType(type, distribution);
// If no WorkItem for the type, return total for that type
if(workItemsForType.Count() == 0)
{
return PointsForType;
}
bool hasGradedScoreUnit = false;
float studentsScores = 0.0f;
float total = 0.0f;
foreach(var workItem in workItemsForType)
{
var scoreUnit = await scoreUnitManager.GetStudentScoreUnit(workItem, student);
if(scoreUnit != null && scoreUnit.Grade.HasValue)
{
hasGradedScoreUnit = true;
studentsScores += scoreUnit.Grade.Value;
total += workItem.MaxPoints;
}
}
// If no ScoreUnit has been graded, return the total for that type
if(!hasGradedScoreUnit)
{
return PointsForType;
}
return (studentsScores / total) * PointsForType;
}
/// <summary>
/// Creates a new default ScoreUnitsController
/// </summary>
public ScoreUnitsController()
{
_db = new ApplicationDbContext();
_userManager = new ApplicationUserManager(new UserStore<ApplicationUser>(_db));
_scoreUnitManager = new ScoreUnitManager(_db);
}
