// GET: Subject/Edit/5
public async Task <IActionResult> Edit(int?id)
{
if (id == null)
{
return(NotFound());
}
// Get a subject by id
var subject = await _context.Subjects.SingleOrDefaultAsync(m => m.Id == id);
if (subject == null)
{
return(NotFound());
}
// Map the SubjectEditVM to the Subject Model
var model = new SubjectEditVM()
{
Id = subject.Id,
Code = subject.Code,
Name = subject.Name,
Description = subject.Description
};
return(View(model));
}
public async Task <IActionResult> Edit(SubjectEditVM model)
{
if (ModelState.IsValid)
{
// Get a subject by id
var subject = await _context.Subjects.SingleOrDefaultAsync(m => m.Id == model.Id);
try
{
if (subject == null)
{
return(NotFound());
}
// Map the SubjectEditVM to the Subject Model
subject.Id = model.Id;
subject.Code = model.Code;
subject.Name = model.Name;
subject.Description = model.Description;
// Update a subject in the Subject Table
_context.Update(subject);
// Save all changes in the database
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!SubjectExists(subject.Id))
{
return(NotFound());
}
else
{
throw;
}
}
return(RedirectToAction(nameof(Index)));
}
return(View(model));
}