在 Eloquent 中相关模型的列中获取最常见的值

Question

I am using Eloquent ORM and I am trying to find out what the most successful sport for a club is, based on wins in tournaments.
I have the tables clubs , tournaments , sports and tournament_results , each represented by a model ( Club , Tournament , Sports , TournamentResult ) with relationships. The relevant columns in my tables:
clubs , tournaments , sports each contain id , name
tournament_results : id , tournament , club , place .

Relations:
Club has HasMany with ClubResults
TournamentResult has BelongsTo with Tournament and BelongsTo with Club
Tournament has HasMany with TournamentResults and BelongsTo with Sport
Sport has HasMany with Tournament

The idea I had about getting my desired result is something like this:
Club -> TournamentResults -> where place = 1 -> Tournaments -> get n (eg 3) most common sports in this set

What I have so far is:

$club = Club::findOrFail($id);
$club->tournamentResults()->where('place', 1)->with('tournament.sport');

But now I don't know how to continue. Can someone help me in finding a solution?

Answer 1

Add this relationship to your Club model:

public function wonTournaments() {
    return $this->belongsToMany(Tournament::class, 'tournament_results')
        ->wherePivot('place', 1);
}

Then you can do this:

$topSport = $club->wonTournaments->groupBy('sport_id')
    ->sortByDesc(function($tournaments) {
        return $tournaments->count();
    })
    ->first()->first()->sport;