public async Task PasswordChange(string New, int Id)
{
User user = FindUserById(Id);
_context.Attach(user);
user.Password = Encryptor.Encrypt(New);
await _context.SaveChangesAsync();
}
public async Task DeleteSubject(int teacherID, string subjectTitle)
{
int subjectID = await _context.Subject.Where(s => s.Title.Equals(subjectTitle)).Select(s => s.Subjectid).FirstOrDefaultAsync();
Teaching teaching = await _context.Teaching.Where(t => t.Userid == teacherID && t.Subjectid == subjectID).FirstOrDefaultAsync();
_context.Remove(teaching);
await _context.SaveChangesAsync();
}
public async Task RegisterAnswer(int questionID, string answer)
{
if (string.IsNullOrEmpty(answer))
{
throw new ArgumentException("answer cannot be empty");
}
Question question = await FindQuestionById(questionID);
_context.Attach(question);
question.Status = 1;
question.Answer = answer;
try
{
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException exc)
{
if (!QuestionExists(questionID))
{
Console.WriteLine("Error happened while saving answer. Question does not exist in a database");
Console.WriteLine(exc.Message);
}
else
{
throw;
}
}
}
//deletes request if it is denied
public async Task DenyNewSubjectRequest(int requestID)
{
_context.Remove(await GetSubjectRequestByID(requestID));
await _context.SaveChangesAsync();
}