public void PopulateAssignedCategoryData(StudentiContext context,
Student student)
{
var allCategories = context.Specializare;
var studCategories = new HashSet <int>(
student.SpecializareStudenti.Select(c => c.ID));
AssignedCategoryDataList = new List <AtribuireSpecializare>();
foreach (var cat in allCategories)
{
AssignedCategoryDataList.Add(new AtribuireSpecializare
{
IDSpecializare = cat.ID,
Specializare = cat.Denumire,
Atribuire = studCategories.Contains(cat.ID)
});
}
}
public void UpdateStudCategories(StudentiContext context,
string[] selectedCategories, Student studToUpdate)
{
if (selectedCategories == null)
{
studToUpdate.SpecializareStudenti = new List <SpecializareStudent>();
return;
}
var selectedCategoriesHS = new HashSet <string>(selectedCategories);
var studCategories = new HashSet <int>
(studToUpdate.SpecializareStudenti.Select(c => c.Specializare.ID));
foreach (var cat in context.Specializare)
{
if (selectedCategoriesHS.Contains(cat.ID.ToString()))
{
if (!studCategories.Contains(cat.ID))
{
studToUpdate.SpecializareStudenti.Add(
new SpecializareStudent
{
StudentID = studToUpdate.ID,
IDSpecializare = cat.ID
});
}
}
else
{
if (studCategories.Contains(cat.ID))
{
SpecializareStudent courseToRemove
= studToUpdate
.SpecializareStudenti
.SingleOrDefault(i => i.IDSpecializare == cat.ID);
context.Remove(courseToRemove);
}
}
}
}