private static void Main(string[] args)
{
using (var db = new GamesDbContext())
{
if (db.Publishers.Count() == 0)
{
Console.WriteLine("The database looks empty; inserting sample data...");
InsertData();
}
Console.WriteLine("Listing games from 2010 on, by publisher:");
var publishers = db.Publishers
.Select(p => new
{
Id = p.Id,
Name = p.Name,
Country = p.Country,
Games = p.Games.Where(g => g.Year >= 2010).ToList()
})
.ToList();
foreach (var publisher in publishers)
{
Console.WriteLine($"Publisher [ID: {publisher.Id}]: {publisher.Name} ({publisher.Country})");
var games = publisher.Games;
if (games.Count == 0)
{
Console.WriteLine(" <No games>");
continue;
}
foreach (var game in games)
{
Console.WriteLine(" * {0} ({1})", game.Title, game.Year);
}
}
}
}
static void InsertData()
{
using (var db = new GamesDbContext())
{
var rockstar = new Publisher {
Name = "Rockstar Games",
Country = "USA"
};
var twok = new Publisher {
Name = "2K Games",
Country = "USA"
};
var bully = new Game {
Title = "Bully",
Year = 2005
};
var rdr = new Game {
Title = "Red Dead Redemption",
Year = 2010
};
var gtav = new Game {
Title = "Grand Theft Auto V",
Year = 2013
};
var rdr2 = new Game {
Title = "Red Dead Redemption 2",
Year = 2018
};
var bioshock = new Game {
Title = "Bioshock",
Year = 2007
};
var bioshock2 = new Game {
Title = "Bioshock 2",
Year = 2010
};
var bioshockInfinite = new Game {
Title = "Bioshock Infinite",
Year = 2013
};
rockstar.Games.Add(bully);
rockstar.Games.Add(rdr);
rockstar.Games.Add(gtav);
rockstar.Games.Add(rdr2);
twok.Games.Add(bioshock);
twok.Games.Add(bioshock2);
twok.Games.Add(bioshockInfinite);
db.Publishers.Add(rockstar);
db.Publishers.Add(twok);
var count = db.SaveChanges();
Console.WriteLine("{0} records(s) saved to the database", count);
}
}