Eloquent中嵌套的"AND OR"查询

Question

我目前正在尝试创建嵌套查询,如下所示:

public function getChallenge($user_id, $opponent_id)
{
    $challenge = $this->challenges()
            ->where('open', true)
            ->where(function($query) use ($user_id, $opponent_id) {
                    $query->where('player_1', $user_id)
                          ->where('player_2', $opponent_id);
                })
                 ->orWhere(function($query) use ($opponent_id, $user_id) {
                    $query->where('player_1', $opponent_id)
                          ->where('player_2', $user_id);
                })
            ->first();

    return $challenge;
}

这会创建以下查询,例如:

select * from `site_challenges_leagues` 
where `site_challenges_leagues`.`league_id` = '1' 
and `open` = '1'
and (`player_1` = '3' and `player_2` = '1') 
or (`player_1` = '1' and `player_2` = '3') 
limit 1

但是,这总是返回表中的第一个值(其中open是1或者0),这是不正确的.为了使查询正确,它需要AND在括号中包含两组查询,如下所示:

 select * from `site_challenges_leagues` 
 where `site_challenges_leagues`.`league_id` = '1' 
 and `open` = TRUE 

 and ((`player_1` = '3' and `player_2` = '1') 
 or (`player_1` = '1' and `player_2` = '3'))

 limit 1

在Laravel可以这样做吗？我试图这样做; 然而,它失败了:

public function getChallenge($user_id, $opponent_id)
{
    $challenge = $this->challenges()
            ->where('open', true)
            ->where(function($q) use ($user_id, $opponent_id) {
                $q->where(function($query) {
                        $query->where('player_1', $user_id)
                              ->where('player_2', $opponent_id);
                    })
                  ->orWhere(function($query) {
                        $query->where('player_1', $opponent_id)
                              ->where('player_2', $user_id);
                    })
                })
            ->first();

    return $challenge;
}

任何帮助是极大的赞赏.

Answer 1

你非常接近答案

$challenge = $this->challenges()
        ->where('open', true)
        ->where(function($q) use ($user_id, $opponent_id) {
            $q->where(function($query) use ($opponent_id, $user_id){
                    $query->where('player_1', $user_id)
                          ->where('player_2', $opponent_id);
                })
              ->orWhere(function($query) use ($opponent_id, $user_id) {
                    $query->where('player_1', $opponent_id)
                          ->where('player_2', $user_id);
                });
            })
        ->first();

以下是两个代码之间的差异