public async Task <IActionResult> OnPostAsync()
{
if (!ModelState.IsValid)
{
return(Page());
}
DataClassStudent.Student studentItem = null;
if (_context.Students.Where(d => d.ClassRoomId == student.classRoomId && d.Id != student.id && d.StudentName.CompareTo(student.studentName) == 0).Count() > 0)
{
ModelState.AddModelError(string.Empty, "Your Student Name is duplicated ");
return(Page());
}
studentItem = await _context.Students.Where(d => d.Id == student.id).FirstOrDefaultAsync();
_mapper.Map(student, studentItem);
await _context.SaveChangesAsync();
return(RedirectToPage("./Index", new { id = student.classRoomId }));
}
public async Task <IActionResult> OnPostAsync()
{
if (!ModelState.IsValid)
{
return(Page());
}
ClassRoom classRoom = null;
if (room.id.HasValue == true)
{
classRoom = await _context.ClassRooms.Where(d => d.Id == room.id).FirstOrDefaultAsync();
_mapper.Map(room, classRoom);
// classRoom= _mapper.Map<ClassRoom>(room);
}
else
{
classRoom = _mapper.Map <ClassRoom>(room);
_context.ClassRooms.Add(classRoom);
}
await _context.SaveChangesAsync();
return(RedirectToPage("./Index"));
}
public async Task <JsonResult> OnGetDeleteStudent(int id)
{
var stu = _context.Students.Where(d => d.Id == id).FirstOrDefault();
if (stu == null)
{
return(new JsonResult("Student number is wrong"));
}
_context.Students.Remove(stu);
await _context.SaveChangesAsync();
return(new JsonResult("OK"));
}
public async Task <JsonResult> OnGetDeleteClassRoom(int id)
{
try
{
var classRoom = _context.ClassRooms.Where(d => d.Id == id).FirstOrDefault();
if (classRoom == null)
{
return(new JsonResult("class number is wrong"));
}
_context.ClassRooms.Remove(classRoom);
await _context.SaveChangesAsync();
}
catch (DbUpdateException)
{
return(new JsonResult("you can't delete class there are some student in the class"));
}
return(new JsonResult("OK"));
}