public static EvaluationResult GetEvaluationResult(Evaluation eva)
{
EvaluationResult result = new EvaluationResult();
var percentageCalculationNeeded = false; // if this bool is set the percentage needs to be recalculated. This happens when a category is completly unscored.
foreach (var subsection in eva.EvaluationTemplate.EvaluationSubSections)
{
var evaluationitems = eva.EvaluationItems.Where(e => e.EvaluationSubSection.Id == subsection.Id);
int scaleMax = eva.Course.Scale?.MaxScore ?? 3;
int max = evaluationitems.Count(i => i.Score != null) * scaleMax;
if (max == 0)
{
percentageCalculationNeeded = true;
}
decimal scorePerSubsection = TotalEvaluationPointsPercategory(evaluationitems, subsection.Weight, max);
result.TotalsPercategory.Add(subsection.Id, scorePerSubsection);
result.Total += scorePerSubsection;
}
if (percentageCalculationNeeded)
{
CalculateTotalPercent(eva, result);
}
return result;
}
private static void CalculateTotalPercent(Evaluation eva, EvaluationResult result)
{
// this method is called whe the percentage needs to be recalculated because a categry is completly unscored.
var scoredCategories =
eva.EvaluationTemplate.EvaluationSubSections.Where(
es =>
eva.EvaluationItems.Where(ei => ei.EvaluationSubSection.Id == es.Id)
.Any(ei => ei.Score.HasValue));
if (scoredCategories.Any())
{
var totalWeight = scoredCategories.Sum(f => f.Weight);
result.Total = (result.Total /totalWeight)*100;
}
}