如何将原始查询转换为Laravel Eloquent方式

Question

我有这个原始查询。 我怎样才能将这一个转换成Laravel雄辩。

SELECT * FROM `results` AS q
INNER JOIN `answers`AS a ON q.question_id = a.question_id 
AND q.team1 = a.team1 
AND q.team2 = a.team2 
AND q.score1 = a.score1

// Table relationships.
results hasMany answers.
results hasMany predictions.
Prediction is another model here.

Answer 1

据我了解你的问题，你无法与联盟建立关系。

请尝试此查询。

 Result::join('results as q', function ($join) {
            $join->on('answers.question_id', '=', 'q.question_id')
                ->on('user_answers.team1', '=', 'q.team1')
                ->on('user_answers.team2', '=', 'q.team2')
                ->on('user_answers.score1', '=', 'q.score1')
                ->on('user_answers.score2', '=', 'q.score2');
        })->get();

现在您可以运行另一个查询来获取关系数据。

Answer 2

假设Result是表results的模型：

Result::join('answers', function ($join) {
    $join->on('answers.question_id', '=', 'results.question_id')
         ->on('answers.team1', '=', 'results.team1')
         ->on('answers.team2', '=', 'results.team2')
         ->on('answers.score1', '=', 'results.score1');
})->get();