简化包括和。然后在实体框架核心6中包含调用

Question

我在项目中使用Entity Framework Core 6.0，我有以下代码结构：

public class Game
{
    public Team Team1 { get; set; }
    public Team Team2 { get; set; }
}

public class Team
{
    public Player Player1 { get; set; }
    public Race Race1 { get; set; }
    public Player Player2 { get; set; }
    public Race Race2 { get; set; }
}

（为简单起见，省略了其他字段）

我想加载所有游戏的所有数据，因此在我的服务类中，我会：

        var games = await _context.Games
            .Include(g => g.Team1)
                .ThenInclude(t => t.Player1)
            .Include(g => g.Team1)
                .ThenInclude(t => t.Race1)
            .Include(g => g.Team1)
                .ThenInclude(t => t.Player2)
            .Include(g => g.Team1)
                .ThenInclude(t => t.Race2)
            .Include(g => g.Team2)
                .ThenInclude(t => t.Player1)
            .Include(g => g.Team2)
                .ThenInclude(t => t.Race1)
            .Include(g => g.Team2)
                .ThenInclude(t => t.Player2)
            .Include(g => g.Team2)
                .ThenInclude(t => t.Race2)
            .ToArrayAsync();

//Collect the statistics

然而，它看起来很难看，占用了很多线。有没有办法简化这段代码？

另外，我不想在整个上下文中使用延迟加载，所以在这里它不是一个选项。

Answer 1

您可以简化包括非集合导航属性：

var games = await _context.Games
    .Include(g => g.Team1.Player1)
    .Include(g => g.Team1.Race1)
    .Include(g => g.Team1.Player2)
    .Include(g => g.Team1.Race2)
    .Include(g => g.Team2.Player1)
    .Include(g => g.Team2.Race1)
    .Include(g => g.Team2.Player2)
    .Include(g => g.Team2.Race2)
    .ToArrayAsync();