public void PopulareDisciplineAtribuite(Goron_Melisa_Proiect_MediiContext context, //using Goron_Melisa_Proiect_Medii.Data;
Tema tema)
{
//se citesc entitatile Discipline:
var toateDisciplinele = context.Disciplina; //se face o variabila cu toate doisciplinele
var disciplineleUneiTeme = new HashSet <int>(
tema.TemaDiscipline.Select(c => c.TemaID)); //creez o colectie
//se poluleaza lista ListaDisciplineAtribuite cu Disciplinele asignate fiecarei Teme
ListaDisciplineAtribuite = new List <DisciplineAtribuite>();
foreach (var dis in toateDisciplinele)
{
ListaDisciplineAtribuite.Add(new DisciplineAtribuite
{
DisciplinaID = dis.ID,
Nume = dis.NumeDisciplina,
Assigned = disciplineleUneiTeme.Contains(dis.ID)
});//creez lista cu disciplinele atribuite fiecarei teme
}
}
//Se adauga in clasa TemeDisciplina, Disciplinele aferente fiecarei Teme
public void UpdateTemeDisipline(Goron_Melisa_Proiect_MediiContext context,
string[] disciplineSelectate, Tema temaToUpdate)
{
if (disciplineSelectate == null)
{
temaToUpdate.TemaDiscipline = new List <TemaDisciplina>();
return;
}
var disciplineSelectateHS = new HashSet <string>(disciplineSelectate); //colectie
var disciplineleUneiTeme = new HashSet <int>
(temaToUpdate.TemaDiscipline.Select(c => c.Disciplina.ID)); //colectie pt disciplinele unei teme
foreach (var dis in context.Disciplina)
{
if (disciplineSelectateHS.Contains(dis.ID.ToString()))
{
if (!disciplineleUneiTeme.Contains(dis.ID))
{
temaToUpdate.TemaDiscipline.Add(
new TemaDisciplina
{
TemaID = temaToUpdate.ID,
DisciplinaID = dis.ID
});
}
}
else
{
if (disciplineleUneiTeme.Contains(dis.ID))
{
TemaDisciplina courseToRemove
= temaToUpdate
.TemaDiscipline
.SingleOrDefault(i => i.DisciplinaID == dis.ID);
context.Remove(courseToRemove);
}
}
}
}