コード例 #1
0
ファイル: MusicManager.cs プロジェクト: Gallagerr/22.04
        private void DeleteGroup()
        {
            foreach (var band in bands)
            {
                band.Print();
                Console.WriteLine();
            }
            Console.WriteLine("Enter group name: ");
            string groupName = Console.ReadLine();

            if (!string.IsNullOrWhiteSpace(groupName))
            {
                if (bands.Contains(bands.Where(band => band.Name.ToUpper() == groupName.ToUpper()).FirstOrDefault()))
                {
                    using (var context = new MusicContext())
                    {
                        var bandToDelete = context.Bands.Where(band => band.Name.ToUpper() == groupName.ToUpper()).FirstOrDefault();
                        context.Entry(bandToDelete).Collection(s => s.Songs).Load();
                        context.Bands.Remove(bandToDelete);
                        context.SaveChanges();
                    }
                }
                else
                {
                    Console.WriteLine("There is no such group!");
                }
            }
            else
            {
                Console.WriteLine("Empty line!");
            }
        }
コード例 #2
0
ファイル: MusicManager.cs プロジェクト: Gallagerr/22.04
        private void DeleteSong()
        {
            foreach (var song in songs)
            {
                song.Print();
                Console.WriteLine();
            }

            Console.WriteLine("Введите название песни: ");
            string songName = Console.ReadLine();

            if (!string.IsNullOrWhiteSpace(songName))
            {
                if (songs.Contains(songs.Where(song => song.Name.ToUpper() == songName.ToUpper()).FirstOrDefault()))
                {
                    using (var context = new MusicContext())
                    {
                        var songToDelete = context.Songs.Where(song => song.Name.ToUpper() == songName.ToUpper()).FirstOrDefault();
                        context.Songs.Remove(songToDelete);
                        context.SaveChanges();
                    }
                }
                else
                {
                    Console.WriteLine("There is no such song!");
                }
            }
            else
            {
                Console.WriteLine("Empty line!");
            }
        }
コード例 #3
0
ファイル: MusicManager.cs プロジェクト: Gallagerr/22.04
        private int MainMenu()
        {
            using (var context = new MusicContext())
            {
                bands = context.Bands.ToList();
                songs = context.Songs.ToList();
            }

            Console.WriteLine("Select an action: \n" + "1) Add a group\n" + "2) Add a song\n" + "3) Search by group\n"
                              + "4) Search by song\n" + "5) Post songs by rating\n" + "6) Delete group\n" + "7) Delete song");
            if (int.TryParse(Console.ReadLine(), out int menu))
            {
                if (menu > 0 && menu <= 7)
                {
                    return(menu);
                }
            }
            return(-1);
        }
コード例 #4
0
ファイル: MusicManager.cs プロジェクト: Gallagerr/22.04
        private void AddGroup()
        {
            string groupName;

            Console.WriteLine("Enter group name: ");
            groupName = Console.ReadLine();

            if (!string.IsNullOrWhiteSpace(groupName))
            {
                Band newBand = new Band();
                newBand.Name = groupName;

                using (var context = new MusicContext())
                {
                    bands.Add(newBand);
                    context.Bands.Add(newBand);
                    context.SaveChanges();
                }
            }
            else
            {
                Console.WriteLine("Empty group name!");
            }
        }
コード例 #5
0
ファイル: MusicManager.cs プロジェクト: Gallagerr/22.04
        private void AddSong()
        {
            string        songName, songWordsString, songBandName;
            long          songDuration;
            int           songRating;
            List <string> songWords = new List <string>();

            Console.WriteLine("Enter the name of the song: ");
            songName = Console.ReadLine();

            if (!string.IsNullOrWhiteSpace(songName))
            {
                if (bands.Count > 0)
                {
                    Song newSong = new Song();
                    newSong.Name = songName;
                    Console.WriteLine("Enter the length of the song(in seconds): ");
                    if (long.TryParse(Console.ReadLine(), out songDuration))
                    {
                        if (songDuration > 0)
                        {
                            newSong.DurationSeconds = songDuration;
                            Console.WriteLine("Enter song rating: ");

                            if (int.TryParse(Console.ReadLine(), out songRating))
                            {
                                if (songRating >= MIN_RATING_SONG && songRating <= MAX_RATING_SONG)
                                {
                                    newSong.Rating = songRating;

                                    Console.WriteLine("Add words: ");
                                    songWordsString = Console.ReadLine();
                                    string[] words = songWordsString.Split(' ');

                                    foreach (var word in words)
                                    {
                                        songWords.Add(word);
                                    }
                                    newSong.Words = songWords;

                                    Console.WriteLine("Enter group name: ");
                                    foreach (var band in bands)
                                    {
                                        Console.WriteLine($"{band.Name}");
                                    }
                                    songBandName = Console.ReadLine();

                                    if (bands.Contains(bands.Where(band => band.Name.ToUpper() == songBandName.ToUpper()).FirstOrDefault()))
                                    {
                                        using (var context = new MusicContext())
                                        {
                                            newSong.Band = context.Bands.Where(band => band.Name.ToUpper() == songBandName.ToUpper()).FirstOrDefault();
                                            context.Songs.Add(newSong);
                                            context.SaveChanges();
                                        }
                                    }
                                    else
                                    {
                                        Console.WriteLine("No such group!");
                                    }
                                }
                                else
                                {
                                    Console.WriteLine($"Rating must be between {MIN_RATING_SONG} and {MAX_RATING_SONG} inclusive");
                                }
                            }
                            else
                            {
                                Console.WriteLine("Wrong format!");
                            }
                        }
                        else
                        {
                            Console.WriteLine("The song can not last less than 1 second!");
                        }
                    }
                    else
                    {
                        Console.WriteLine("Wrong format!");
                    }
                }
                else
                {
                    Console.WriteLine("First you need to add groups!");
                }
            }
            else
            {
                Console.WriteLine("Empty song name!");
            }
        }