internal void deleteSubject(Subject sub)
{
try
{
using (var db = new DataContext())
{
var original = db.Subjects.Find(sub.SubjectID);
if (original != null)
{
db.Subjects.Remove(original);
db.SaveChanges();
}
}
}
catch (DbUpdateConcurrencyException)
{
throw;
}
catch (DbUpdateException)
{
MessageBox.Show("You can not delete subject which has realisation.", "Subject Deletion Error");
return;
}
catch (DbEntityValidationException)
{ throw; }
}
public void deleteSubject(Subject sub)
{
try
{
using (var db = new DataContext())
{
var original = db.Subjects.Find(sub.SubjectID);
if (original != null)
{
db.Subjects.Remove(original);
db.SaveChanges();
}
}
}
catch (DbUpdateConcurrencyException)
{
throw new EresDataContextException("Blad polaczania z baza danych. Sprobuj jeszcze raz.", "Usuwanie przedmiotu");
}
catch (DbUpdateException)
{
throw new EresDataContextException("Nie mozna usunac przedmiotu z realizacja!", "Usuwanie przedmiotu");
}
catch (DbEntityValidationException)
{
throw new EresDataContextException("Blad polaczania z baza danych.", "Usuwanie przedmiotu");
}
}
public void createSubject(string newName, string newConspect, string newUrl)
{
try
{
using (var db = new DataContext())
{
var subject = new Subject { Name = newName, Conspect = newConspect, url = newUrl };
db.Subjects.Add(subject);
db.SaveChanges();
}
}
catch (DbEntityValidationException)
{ throw; }
}
public void createSubject(string newName, string newConspect, string newUrl)
{
try
{
using (var db = new DataContext())
{
var subject = new Subject { Name = newName, Conspect = newConspect, url = newUrl };
db.Subjects.Add(subject);
db.SaveChanges();
}
}
catch (DbEntityValidationException)
{
throw new EresDataContextException("Blad polaczenia z baza danych" ,"Dodawanie przedmiotu");
}
}