//データ追加
private static void AddData()
{
using (var manager = new BookManager())
{
var p1 = new Publisher
{
Name = "テスト1",
Address = "神奈川県・・・"
};
manager.Publishers.Add(p1);
manager.Publishers.Add(new Publisher
{
Name = "test2",
Address = "東京都・・・"
});
manager.Books.Add(new Book
{
Title = "Entity Framework CTP4",
Publisher = p1
});
manager.Books.Add(new Book
{
Title = "MySQL",
Publisher = p1
});
manager.SaveChanges();
}
}
//データ追加
private static void AddData()
{
using (var manager = new BookManager())
{
var p1 = new Publisher
{
Name = "テスト1",
Address = "神奈川県・・・"
};
manager.Publishers.Add(p1);
manager.Publishers.Add(new Publisher
{
Name = "test2",
Address = "東京都・・・"
});
manager.Books.Add(new Book
{
Title = "Entity Framework CTP4",
Publisher = p1
});
manager.Books.Add(new Book
{
Title = "MySQL",
Publisher = p1
});
manager.SaveChanges();
}
}
//データ検索
private static void SelectData()
{
using (var manager = new BookManager())
{
//Include で Books の内容をロードするように指定
//Include が無いと Books プロパティの値が null になる
var res = from p in manager.Publishers.Include("Books")
where p.Books.Count > 0
select p;
res.ToList().ForEach(p =>
{
Console.WriteLine("publisher: {0}", p.Name);
p.Books.ToList().ForEach(b => Console.WriteLine("book: {0}", b.Title));
Console.WriteLine();
});
}
}
//データ検索
private static void SelectData()
{
using (var manager = new BookManager())
{
//Include で Books の内容をロードするように指定
//Include が無いと Books プロパティの値が null になる
var res = from p in manager.Publishers.Include("Books")
where p.Books.Count > 0
select p;
res.ToList().ForEach(p =>
{
Console.WriteLine("publisher: {0}", p.Name);
p.Books.ToList().ForEach(b => Console.WriteLine("book: {0}", b.Title));
Console.WriteLine();
});
}
}
