public ActionResult EditSubject(int id)
{
// Carga los datos de la materia a modificar
try
{
ListSubjectViewModelAdmin model = new ListSubjectViewModelAdmin();
using (Models.DBContainer db = new Models.DBContainer())
{
Subject subject = db.Subjects.Find(id);
if (subject == null)
{
TempData["Alert"] = "An error occurred, try again later";
return(RedirectToAction("ListSubjects"));
}
model.id_subject = subject.id_subject;
model.name = subject.name;
model.description = subject.desc;
model.capacity = subject.capacity;
model.time_from = subject.time_from;
model.time_to = subject.time_to;
model.id_teacher = subject.id_teacher;
}
PopulateDropDownList();
return(View(model));
}
catch (Exception exc)
{
throw new Exception(exc.Message);
}
}
public ActionResult EditSubject(ListSubjectViewModelAdmin model)
{
// Modifica la materia y la persiste en la base de datos
try
{
if (ModelState.IsValid)
{
using (Models.DBContainer db = new Models.DBContainer())
{
Subject subject = db.Subjects.Find(model.id_subject);
if (subject == null)
{
TempData["Alert"] = "An error occurred, try again later";
return(RedirectToAction("ListSubjects"));
}
subject.name = model.name;
subject.desc = model.description;
subject.capacity = model.capacity;
subject.time_from = model.time_from;
subject.time_to = model.time_to;
subject.id_teacher = model.id_teacher;
if (subject.time_to <= subject.time_from)
{
// Horario no válido
ViewData["Error"] = "Ending time must be strictly greater than starting time";
PopulateDropDownList();
return(View(model));
}
db.Entry(subject).State = System.Data.Entity.EntityState.Modified;
db.SaveChanges();
}
return(RedirectToAction("ListSubjects", "Admin"));
}
// Si el modelo no es válido, tengo que volver a la misma pantalla, con
// lo cual hay que rellenar de nuevo el DropDownList
PopulateDropDownList();
return(View(model));
}
catch (Exception exc)
{
throw new Exception(exc.Message);
}
}
public ActionResult NewSubject(ListSubjectViewModelAdmin model)
{
// Crea una nueva materia y la guarda en el sistema
try
{
if (ModelState.IsValid)
{
using (Models.DBContainer db = new Models.DBContainer())
{
Subject subject = new Subject();
subject.name = model.name;
subject.desc = model.description;
subject.capacity = model.capacity;
subject.time_from = model.time_from;
subject.time_to = model.time_to;
subject.id_teacher = model.id_teacher;
if (subject.time_to <= subject.time_from)
{
// Horario no válido
ViewData["Error"] = "Ending time must be strictly greater than starting time";
PopulateDropDownList();
return(View(model));
}
db.Subjects.Add(subject);
db.SaveChanges();
}
return(RedirectToAction("ListSubjects", "Admin"));
}
// Si el modelo no es válido, tengo que volver a la misma pantalla, con
// lo cual hay que rellenar de nuevo el DropDownList
PopulateDropDownList();
return(View(model));
}
catch (Exception exc)
{
throw new Exception(exc.Message);
}
}
