聲明2與yii2中的同一張表的關係

Question

是否可以聲明2與yii2中的同一張表的關係？

例子：

tournament(id, name) 
game(id, tournamentId, team1Id, team2Id) 
team(id, name) 
player(id, name, teamId) 

因此，這裏的模式，正如你所看到的，一個遊戲應該由2個團隊，TEAM1和TEAM2。

現在在yii的錦標賽模型中，我需要創建一個關係，這會給我參加錦標賽的球隊。

public class Tournament extends ActiveRecord 
{ 
    ... 
    public function getGames() 
    { 
     return $this->hasMany(Game::className(), ['tournamentId' => 'id']); 
    } 

    public function getParticipatedTeams() 
    { 
     return $this->hasMany(Team::className(), [/*what should the link be? */])->via('games'); 
    } 
} 

我如何從比賽模型中獲得團隊？

Answer 1

public class Tournament extends ActiveRecord 
{ 
    ... 
    public function getGames() 
    { 
     return $this->hasMany(Game::className(), ['tournamentId' => 'id']); 
    } 

    public function getParticipatedTeam1() 
    { 
     return $this->hasMany(Team::className(), ['id' => 'team1Id'])->via('games'); 
    } 

    public function getParticipatedTeam2() 
    { 
     return $this->hasMany(Team::className(), ['id' => 'team2Id'])->via('games'); 
    } 
}