public async Task <IActionResult> ChangeToTeacher(ChangeToTeacherViewModel model)
{
if (!ModelState.IsValid)
{
return(View(model));
}
var user = await _userManager.GetUserAsync(User);
if (user == null)
{
throw new ApplicationException($"用户不存在，UseId：{_userManager.GetUserId(User)}");
}
_teacherManager.ApplyToTeacherRole(user.UserName, model.RealName, model.School, model.ApplyReason);
StatusMessage = "你的申请已提交成功，等待管理员审核。";
return(RedirectToAction(nameof(ChangeToTeacher)));
}
