public async Task <IActionResult> CreateSubject()
{
var user = await _userManager.GetUserAsync(User);
var isAdmin = await IsAdmin();
var schoolIds = _schoolsServices.GetAllByUserId <SchoolViewModel>(user?.UniqueGradebookId, isAdmin).Select(s => s.Id);
var teachersInSchools = _teachersService.GetAllBySchoolIds <TeacherViewModel>(schoolIds);
var inputModel = new SubjectCreateInputModel
{
Teachers = teachersInSchools.Select(t => new SelectListItem($"{t.FirstName} {t.LastName} ({t.SchoolName})", t.Id.ToString())).ToList()
};
return(View(inputModel));
}