private Student CreateStudent(StudentDTO studentDto, int localeId) { var studentRes = Database.Students.Get(new FilterExpression <Student>(s => s.Email == studentDto.Email)).FirstOrDefault(); if (studentRes == null) { var student = Mapper.Map <StudentDTO, Student>(studentDto); student.StatusCreationDate = DateTime.Now; student.GroupId = 1; student.Login = $"{studentDto.GetLastName(localeId)}{studentDto.GetFirstName(localeId).Substring(0, 1).ToUpper()}{studentDto.GetPatronymic(localeId).Substring(0, 1).ToUpper()}"; student.Password = CreateRandomPassword(8); Database.Students.Add(student); studentRes = student; } else { if (string.IsNullOrWhiteSpace(studentRes.Login)) { studentRes.Login = $"{studentDto.GetLastName(localeId)}{studentDto.GetFirstName(localeId).Substring(0, 1).ToUpper()}{studentDto.GetPatronymic(localeId).Substring(0, 1).ToUpper()}"; Database.Students.Update(studentRes); } if (string.IsNullOrWhiteSpace(studentRes.Password)) { studentRes.Password = CreateRandomPassword(8); Database.Students.Update(studentRes); } } return(studentRes); }