Laravel запрос к базе данных

Question

У меня есть оригинальный запрос, который я сделал в программе Navicat:

SELECT
tt1.team AS team1,
tt2.team AS team2,
tt1.logo AS team1_logo,
tt2.logo AS team2_logo,
tt1.id AS team1_id,
tt2.id AS `team2_id,`,
tournaments_matches.`status`,
tournaments_matches.started_at,
tt1.x AS x1,
tt2.x AS x2,
tournaments_matches.live,
tournaments_matches.winner_id
FROM
tournaments_teams AS tt1
INNER JOIN tournaments_teams AS tt2 ON tt1.match_id = tt2.match_id AND tt1.id != tt2.id
INNER JOIN tournaments_matches ON tournaments_matches.match_id = tt2.match_id AND tournaments_matches.match_id = tt1.match_id
GROUP BY
tt1.match_id

Я попытался переделать этот запрос в Laravel Query Builder, я получил это:

    $opponents = DB::select('tt1.team as team1','tt2.team as team2','tt1.logo as team1_logo','tt2.logo as team2_logo','tt1.id as team1_id','tt2.id as team2_id,','tournaments_matches.status','tournaments_matches.started_at','tt1.x as x1','tt2.x as x2','tournaments_matches.live','tournaments_matches.winner_id')
    ->from('tournaments_teams as tt1')
    ->join('tournaments_teams as tt2', function($join) {
        $join->on('tt1.match_id', '=', 'tt2.match_id')
            ->on('tt1.id', '!=', 'tt2.id');
        })
    ->join('tournaments_matches', function($join) {
        $join->on('tournaments_matches.match_id', '=', 'tt2.match_id')
            ->on('tournaments_matches.match_id', '=', 'tt1.match_id');
        })
    ->groupBy('tt1.match_id')
    ->get();

    var_dump($opponents); exit;

tournaments_teams и tournaments_matches это разные таблицы в базе данных.

Но когда я пытаюсь получить доступ к странице, var_dump сообщает мне ошибку Type error: Argument 1 passed to Illuminate\Database\Connection::prepareBindings() must be of the type array, string given, called in. В чем проблема? Как я могу это исправить?

Answer 1

Посмотрите документацию для выбора: https://laravel.com/docs/7.x/queries#selects

Я думаю, что ваша проблема при выборе таблицы, попробуйте:

$opponents = DB::table('tournaments_teams as tt1')
    ->select('tt1.team as team1','tt2.team as team2','tt1.logo as team1_logo','tt2.logo as team2_logo','tt1.id as team1_id','tt2.id as team2_id,','tournaments_matches.status','tournaments_matches.started_at','tt1.x as x1','tt2.x as x2','tournaments_matches.live','tournaments_matches.winner_id')
    ->join('tournaments_teams as tt2', function($join) {
        $join->on('tt1.match_id', '=', 'tt2.match_id')
            ->on('tt1.id', '!=', 'tt2.id');
    })
    ->join('tournaments_matches', function($join) {
        $join->on('tournaments_matches.match_id', '=', 'tt2.match_id')
            ->on('tournaments_matches.match_id', '=', 'tt1.match_id');
    })
    ->groupBy('tt1.match_id')
    ->get();