Laravel-具有复合主键的HasOneThrough

Question

我正在开发一个可以让人们观看体育比赛的应用程序。这些表具有复合主键。表的相关属性如下所示：

| Game                      | Team        | League_Team    |
|---------------------------|-------------|----------------|
| id (PK)                   | id (PK)     | league_id (PK) |
| league_id (PK)            | name        | team_id (PK)   |
| home_id  (season_team_id) | ...         | season_team_id |
| guest_id (season_team_id) |             | ...            |
| ...                       |             |                |
| ...                       |             |                |

所以我的目标是将所有游戏与特定的主场和客队一起使用...所以它应该像这样Game::with('homeTeam')->with('guestTeam')->....;

如何获得这种关系？我尝试过hasOneThrough，但不知道它如何与复合主键配合使用！

感谢您的帮助！

编辑

除$primaryKey属性外，所有模型均为空。

游戏模型

protected $primaryKey = ['id', 'league_id']; public function homeTeam() { // ... }

public function up()
{
    Schema::create('basketball_games', function (Blueprint $table) {
        $table->unsignedInteger('id');
        $table->unsignedInteger('league_id')->nullable();
        $table->dateTime('date');
        $table->unsignedInteger('home_id');
        $table->unsignedInteger('guest_id');


        $table->primary(['id','league_id']);

        // Foreign Keys
        $table->foreign('league_id')->references('id')->on('basketball_leagues');

        $table->timestamps();
    });
}

团队模型

空

public function up()
{
    Schema::create('basketball_teams', function (Blueprint $table) {
        $table->increments('id');
        $table->string('name');
        $table->timestamps();
    });
}

联赛团队

protected $primaryKey = ['league_id','team_id'];

public function up()
{
    Schema::create('basketball_league_teams', function (Blueprint $table) {
        $table->unsignedInteger('league_id');
        $table->unsignedInteger('team_id');
        $table->unsignedInteger('season_team_id');
        $table->string('name');
        $table->timestamps();

        $table->primary(['league_id','team_id']);

        // Foreign Keys
        $table->foreign('league_id')->references('id')->on('basketball_leagues');
        $table->foreign('team_id')->references('id')->on('basketball_teams');
    });
}