Question

我有一个StartController，其中包含存储库中的电影列表。我想使用该列表，不仅在StartController中，而且在我的GenreController中，但我无法弄清楚如何。这是我的StartController：

namespace IMDB
{
    public class StartController : Controller
    {
        // GET: Start
        public ActionResult Index()
        {

            var movies = GetMoviesFromRepository();

            return View(movies);
        }
        // GET: Details

        public ActionResult Movie(int id)
        {
            var allMovies = GetMoviesFromRepository();
            var movie = allMovies.FirstOrDefault(x => x.MovieID.Equals(id));

            return View(movie);
        }

        private List<Movie> GetMoviesFromRepository()
        {

            var movies = new List<Movie>();

            var movie1 = new Movie();
            movie1.MovieID = 1;
            movie1.Title = "Terminator";
            movie1.Genre = "Comedy";
            movie1.Year = 1984;
            movie1.Country = "America";
            movie1.Picture = "http://vignette4.wikia.nocookie.net/tvdatabase/images/8/89/Terminator_(1984).jpg";
            movies.Add(movie1);

            var movie2 = new Movie();
            movie2.MovieID = 2;
            movie2.Title = "Terminator 2: Judgement Day";
            movie2.Genre = "Romantic";
            movie2.Year = 1991;
            movie2.Country = "America";
            movie2.Picture = "https://upload.wikimedia.org/wikipedia/en/8/85/Terminator2poster.jpg";
            movies.Add(movie2);

            return movies;
        }
    }
}

这是GenreController，我想从StartController访问列表：

namespace IMDB.Controllers
{
    public class GenreController : Controller
    {
        // GET: Genre
        public ActionResult Genre(string genre)
        {
            var allGenres = GetMoviesFromRepository();
            // Some code goes here

            return View();
        }
    }
}

显然这不起作用。但我无法弄清楚如何让我的列表在GenreController中工作。

Answer 1

这就是Div所说的：

将电影资源库逻辑从控制器中提取出来并放入自己的类中。它的目的是检索你的电影。

    public class MovieRepository {
        public List<Movie> GetMoviesFromRepository()
        {
            var movies = new List<Movie>();

            var movie1 = new Movie();
            movie1.MovieID = 1;
            movie1.Title = "Terminator";
            movie1.Genre = "Comedy";
            movie1.Year = 1984;
            movie1.Country = "America";
            movie1.Picture = "http://vignette4.wikia.nocookie.net/tvdatabase/images/8/89/Terminator_(1984).jpg";
            movies.Add(movie1);

            var movie2 = new Movie();
            movie2.MovieID = 2;
            movie2.Title = "Terminator 2: Judgement Day";
            movie2.Genre = "Romantic";
            movie2.Year = 1991;
            movie2.Country = "America";
            movie2.Picture = "https://upload.wikimedia.org/wikipedia/en/8/85/Terminator2poster.jpg";
            movies.Add(movie2);

            return movies;
        }
    }

然后在您的控制器中添加一个构造函数，该构造函数初始化将保存您的MovieRepository的私有变量。然后，在您想要检索电影收藏的任何地方，只需调用movieRepository.GetMoviesFromRepository（）。

        public class StartController : Controller {
            private readonly MovieRepository movieRepository;

            public StartController()
            {
                this.movieRepository = new MovieRepository();
            }

            // GET: Start
            public ActionResult Index()
            {
                var movies = movieRepository.GetMoviesFromRepository();

                return View(movies);
            }
            // GET: Details

            public ActionResult Movie(int id)
            {
                var allMovies = movieRepository.GetMoviesFromRepository();
                var movie = allMovies.FirstOrDefault(x => x.MovieID.Equals(id));

                return View(movie);
            }

        }

继承，存储库，MVC

1 个答案: