// [TestMethod]
public void PopulateMovieGenresTableData()
{
TextReader readFile = new StreamReader(@"C:\Users\Abhil\Desktop\movies_metadata.csv");
var csv = new CsvReader(readFile);
csv.Configuration.BadDataFound = null;
csv.Configuration.ReadingExceptionOccurred = null;
var moviesFromCsv = csv.GetRecords <dynamic>();
List <Movie> moviesFromDb;
List <Genre> genresFromDb;
Dictionary <int, List <Genre> > moviesGenresDictionary = new Dictionary <int, List <Genre> >();
foreach (var mov in moviesFromCsv)
{
List <Genre> genresTotal = new List <Genre>();
JArray genreArray = JArray.Parse(mov.genres);
int id;
var externalId = Int32.TryParse(mov.id, out id) ? id : 0;
foreach (var g in genreArray)
{
var genres = JsonConvert.DeserializeObject <Genre>(g.ToString());
genresTotal.Add(genres);
}
moviesGenresDictionary.Add(externalId, genresTotal);
}
Database.SetInitializer <MovieDbContext>(null);
using (var db = new MovieDbContext())
{
moviesFromDb = db.Movies.ToList();
genresFromDb = db.Genres.ToList();
}
using (var db = new MovieDbContext())
{
// db.Configuration.AutoDetectChangesEnabled = false;
foreach (var m in moviesFromDb)
{
var generesToAdd = moviesGenresDictionary[m.ExternalId];
Movie movie = new Movie()
{
Id = m.Id
};
foreach (var g in generesToAdd)
{
int genreId = genresFromDb.Where(gn => gn.Name == g.Name).Select(gn => gn.Id).FirstOrDefault();
Genre genre = new Genre()
{
Id = genreId
};
db.Database.ExecuteSqlCommand("Insert into MovieGenres Values({0},{1})", genreId, movie.Id);
}
}
}
}
// [TestMethod]
public void PopulateGeneresLookupTableData()
{
TextReader readFile = new StreamReader(@"C:\Users\Abhil\Desktop\movies_metadata.csv");
var csv = new CsvReader(readFile);
csv.Configuration.BadDataFound = null;
csv.Configuration.ReadingExceptionOccurred = null;
var moviesFromCsv = csv.GetRecords <dynamic>();
List <Genre> genresTotal = new List <Genre>();
foreach (var mov in moviesFromCsv)
{
JArray genreArray = JArray.Parse(mov.genres);
int id;
var ImdbId = Int32.TryParse(mov.id, out id) ? id : 0;
foreach (var g in genreArray)
{
var genres = JsonConvert.DeserializeObject <Genre>(g.ToString());
genresTotal.Add(genres);
}
}
List <Genre> genresDistinct = new List <Genre>();
foreach (var genre in genresTotal.Select(g => new { id = g.Id, name = g.Name }).Distinct())
{
genresDistinct.Add(new Genre()
{
Id = genre.id, Name = genre.name
});
}
using (var scope = new TransactionScope())
{
Database.SetInitializer <MovieDbContext>(null);
using (var db = new MovieDbContext())
{
db.Configuration.AutoDetectChangesEnabled = false;
foreach (var g in genresDistinct)
{
var gg = new Genre
{
Id = g.Id,
Name = g.Name
};
db.Genres.Add(gg);
}
db.SaveChanges();
}
scope.Complete();
}
}
