private static void ClearExistingWeights(WeightGenerationResult weightGenerationResult)
{
DMSDbContext dbContext = DependencyResolver.Current.GetService <DMSDbContext>();
weightGenerationResult.Items.ToList().ForEach(item =>
{
dbContext.Entry(item).State = System.Data.EntityState.Deleted;
});
}
public virtual ActionResult GenerateWeights(int id, WeightGenerationMethod method)
{
Project project = _projectService.Get(id);
WeightGenerationResult result = project.WeightGenerationResults.SingleOrDefault(x => x.GenerationMethod == method);
var viewModel = new GenerateWeightsRequestModel();
viewModel.Id = id;
viewModel.Method = method;
viewModel.ExistingResult = result;
return(PartialView(viewModel));
}
public virtual ActionResult GenerateWeights(int id, WeightGenerationMethod method, GenerateWeightsRequestModel viewModel)
{
Project project = _projectService.Get(id);
WeightGenerationResult result = project.WeightGenerationResults.SingleOrDefault(x => x.GenerationMethod == method);
viewModel.ExistingResult = result;
if (ModelState.IsValid)
{
WeightGenerationResult weightGenerationResult = result ?? new WeightGenerationResult()
{
GenerationMethod = viewModel.Method
};
var alfa = Convert.ToDecimal(viewModel.Alfa, CultureInfo.InvariantCulture);
weightGenerationResult.Alfa = alfa;
weightGenerationResult.Items = weightGenerationResult.Items ?? new List <WeightGenerationResultItem>();
ClearExistingWeights(weightGenerationResult);
switch (viewModel.Method)
{
case WeightGenerationMethod.Method1:
case WeightGenerationMethod.Method2:
case WeightGenerationMethod.Method3:
var finalAssessmentMatrix = project.FinalAssessment.ToMatrix();
List <List <decimal> > weights = GenerateWeightWithA.GenerateWeight(alfa, finalAssessmentMatrix, viewModel.Method);
for (int i = 0; i < weights.Count; i++)
{
for (int j = 0; j < weights[i].Count; j++)
{
WeightGenerationResultItem item = new WeightGenerationResultItem();
item.AlternativeId = project.Alternatives.ElementAt(i).AlternativeId;
item.FactorId = project.Factors.ElementAt(j).FactorId;
item.Weight = Convert.ToDecimal(weights[i][j]);
weightGenerationResult.Items.Add(item);
}
}
break;
case WeightGenerationMethod.Orness:
var orness = DMS.Domain.GenerateWeights.SearchSolutionOress.GenerateWeight(Convert.ToDouble(viewModel.Alfa, CultureInfo.InvariantCulture), project.Factors.Count);
foreach (var alternative in project.Alternatives)
{
for (int i = 0; i < orness.Count; i++)
{
WeightGenerationResultItem item = new WeightGenerationResultItem();
item.Weight = Convert.ToDecimal(orness[i]);
item.Factor = project.Factors.ElementAt(i);
item.Alternative = alternative;
weightGenerationResult.Items.Add(item);
}
}
break;
case WeightGenerationMethod.Quantifier:
var quantifier = DMS.Domain.GenerateWeights.WeightGeneratorQuantifier.GenerateWeights(Convert.ToDouble(viewModel.Alfa, CultureInfo.InvariantCulture), project.Factors.Count);
foreach (var alternative in project.Alternatives)
{
for (int i = 0; i < quantifier.Count; i++)
{
WeightGenerationResultItem item = new WeightGenerationResultItem();
item.Weight = Convert.ToDecimal(quantifier[i]);
item.Factor = project.Factors.ElementAt(i);
item.Alternative = alternative;
weightGenerationResult.Items.Add(item);
}
}
break;
}
project.WeightGenerationResults.Add(weightGenerationResult);
_projectService.Update(project);
viewModel.ExistingResult = weightGenerationResult;
}
return(PartialView(viewModel));
}
