Event::with(["owner", "participants" => function($q) use($someId){
$q->where('participants.IdUser', '=', 1);
//$q->where('some other field', $someId);
}])use Illuminate\Database\Eloquent\Builder;
// Retrieve posts with at least one comment containing words like code%...
$posts = Post::whereHas('comments', function (Builder $query) {
$query->where('content', 'like', 'code%');
})->get();
// Retrieve posts with at least ten comments containing words like code%...
$posts = Post::whereHas('comments', function (Builder $query) {
$query->where('content', 'like', 'code%');
}, '>=', 10)->get();$movies = Movie::whereHas('director', function($q) {
$q->where('name', 'great');
})->get();
N + 1
return new SongsCollection(Song::with('album')->get());
'songs' => SongResource::collection($this->whenLoaded($this->songs))$roles = App\User::find(1)->roles()->orderBy('name')->get();$user->posts()->where('active', 1)->get();