Пример #1
0
        private static void AddMember(Role role)
        {
            Console.WriteLine("Enter username");
            string username = Console.ReadLine();

            if (string.IsNullOrEmpty(username))
            {
                throw new Exception("You must enter username");
            }

            Admin   admin   = SearchAdmins(username);
            Trainer trainer = SearchTrainers(username);
            Student student = SearchStudents(username);

            if (admin != null || trainer != null || student != null)
            {
                throw new Exception("User with this username already exists");
            }

            Console.WriteLine("Enter first name");
            string firstName = Console.ReadLine();

            if (string.IsNullOrEmpty(firstName))
            {
                throw new Exception("You must enter first name");
            }

            Console.WriteLine("Enter last name");
            string lastName = Console.ReadLine();

            if (string.IsNullOrEmpty(lastName))
            {
                throw new Exception("You must enter last name");
            }

            int age = int.Parse(Console.ReadLine());

            if (age < 16)
            {
                throw new Exception("Age must be greater than 16");
            }

            if (role == Role.Admin)
            {
                Admins.Add(new Admin(username, firstName, lastName, age));
            }
            else if (role == Role.Trainer)
            {
                Trainers.Add(new Trainer(username, firstName, lastName, age));
            }
            else
            {
                Student newStudent = new Student(username, firstName, lastName, age);

                Console.WriteLine("Enter subject name");
                string  currentSubject = Console.ReadLine();
                Subject current        = Subjects.FirstOrDefault(x => x.Name == currentSubject);
                newStudent.CurrentSubject = current;

                Students.Add(newStudent);
            }
        }
Пример #2
0
        static void Main(string[] args)
        {
            PopulateDatabase();
            while (true)
            {
                try
                {
                    Console.WriteLine("Enter username");
                    string userName = Console.ReadLine();
                    if (string.IsNullOrEmpty(userName))
                    {
                        throw new Exception("You must enter username");
                    }

                    //first check admins
                    Admin admin = SearchAdmins(userName);
                    if (admin != null)
                    {
                        Console.WriteLine("" +
                                          "1) Add teacher," +
                                          "2) Remove teacher," +
                                          "3) Add student," +
                                          "4) Remove student," +
                                          "5) Add admin," +
                                          "6) Remove admin");
                        int option = int.Parse(Console.ReadLine());
                        switch (option)
                        {
                        case 1:
                            AddMember(Role.Trainer);
                            break;

                        case 2:
                            Console.WriteLine("Enter username");
                            string username = Console.ReadLine();
                            RemoveTrainer(username);
                            break;

                        case 3:
                            AddMember(Role.Student);
                            break;

                        case 4:
                            Console.WriteLine("Enter username");
                            string studentUsername = Console.ReadLine();
                            RemoveStudent(studentUsername);
                            break;

                        case 5:
                            AddMember(Role.Admin);
                            break;

                        case 6:
                            Console.WriteLine("Enter username");
                            string adminUsername = Console.ReadLine();
                            if (adminUsername == admin.UserName)
                            {
                                throw new Exception("You can not delete yourself");
                            }
                            RemoveAdmin(adminUsername);
                            break;

                        default:
                            throw new Exception("You must enter valid option 1-6");
                        }
                    }
                    else
                    {
                        //not an admin
                        Trainer trainer = Trainers.FirstOrDefault(x => x.UserName == userName);
                        if (trainer != null)
                        {
                            //trainer
                            Console.WriteLine("Enter option 1) See students 2) See subjects");
                            int trainerOption = int.Parse(Console.ReadLine());
                            switch (trainerOption)
                            {
                            case 1:
                                PrintStudents();
                                break;

                            case 2:
                                PrintSubjects();
                                break;

                            default:
                                throw new Exception("You must enter valid option 1/2");
                            }
                        }
                        else
                        {
                            //not an admin, not a trainer
                            Student student = Students.FirstOrDefault(x => x.UserName == userName);
                            if (student == null)
                            {
                                throw new Exception("The user does not exist");
                            }
                            student.PrintDetails();
                        }
                    }
                }
                catch (FormatException ex)
                {
                    Console.ForegroundColor = ConsoleColor.Red;
                    Console.WriteLine("Input was not a number");
                    Console.WriteLine(ex.Message);
                }
                catch (Exception ex)
                {
                    Console.ForegroundColor = ConsoleColor.Red;
                    Console.WriteLine("An error occured");
                    Console.WriteLine(ex.Message);
                }

                Console.ForegroundColor = ConsoleColor.White;
                Console.WriteLine("Would you like to continue? Type yes");
                string response = Console.ReadLine();
                if (response.ToLower() == "yes")
                {
                    continue;
                }
                else
                {
                    break;
                }
            }
            Console.ReadLine();
        }