public async Task <IActionResult> Edit(int id, [Bind("Id,StudentId,FirstName,LastName,EnrollmentDate,CurrentSemestar,AcquiredCredits,EducationLevel")] Student student)
{
if (id != student.Id)
{
return(NotFound());
}
if (ModelState.IsValid)
{
try
{
_context.Update(student);
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!StudentExists(student.Id))
{
return(NotFound());
}
else
{
throw;
}
}
return(RedirectToAction(nameof(Index)));
}
return(View(student));
}
public async Task <IActionResult> Edit(int id, [Bind("Id,FirstName,LastName,Degree,AcademicRank,OfficeNumber,HireDate")] Teacher teacher)
{
if (id != teacher.Id)
{
return(NotFound());
}
if (ModelState.IsValid)
{
try
{
_context.Update(teacher);
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!TeacherExists(teacher.Id))
{
return(NotFound());
}
else
{
throw;
}
}
return(RedirectToAction(nameof(Index)));
}
return(View(teacher));
}
public async Task <IActionResult> Edit(int id, CourseStudentsEditViewModel viewmodel) /*Edit(int id, [Bind("Id,Title,Credits,Semester,Programme,EducationLevel,FirstTeacherId,SecondTeacherId")] Course course)*/
{
if (id != viewmodel.Course.Id)
{
return(NotFound());
}
if (ModelState.IsValid)
{
try
{
_context.Update(viewmodel.Course);
await _context.SaveChangesAsync();
IEnumerable <int> listStudents = viewmodel.SelectedStudents;
IQueryable <Enrollment> toBeRemoved = _context.Enrollment.Where(s => !listStudents.Contains(s.StudentId) && s.CourseId == id);
_context.Enrollment.RemoveRange(toBeRemoved);
IEnumerable <int> existStudents = _context.Enrollment.Where(s => listStudents.Contains(s.StudentId) && s.CourseId == id).Select(s => s.StudentId);
IEnumerable <int> newStudents = listStudents.Where(s => !existStudents.Contains(s));
foreach (int studentId in newStudents)
{
_context.Enrollment.Add(new Enrollment {
StudentId = studentId, CourseId = id
});
}
//_context.Update(course);
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!CourseExists(viewmodel.Course.Id))
{
return(NotFound());
}
else
{
throw;
}
}
return(RedirectToAction(nameof(Index)));
}
ViewData["FirstTeacherId"] = new SelectList(_context.Set <Teacher>(), "Id", "FullName", viewmodel.Course.FirstTeacherId);
ViewData["SecondTeacherId"] = new SelectList(_context.Set <Teacher>(), "Id", "FullName", viewmodel.Course.SecondTeacherId);
return(View(viewmodel));
}