hubungan banyak-ke-banyak OrderBy - pembuat kueri Laravel

Coba ini:

$rateEruToDolor =2;
$rateAedToDolor =3;
$products = Product::join('product_options', 'products.id', '=', 'product_options.product_id')
      ->join('options', 'product_options.option_id', '=', 'options.id')
      ->selectRaw('price, currency, IF(currency=0, price * ?, IF(currency=1, price * ?, price)) 
                   as dolor_price', [$rateEruToDolor, $rateAedToDolor]);
$products->orderBy('dolor_price');
dd($products->get()->toArray());

Cantumkan semua bidang di tabel produk/opsi Anda bersama dengan price dan currency sudah terdaftar di selectRaw('xxx, xxx, price, currency, IF ...) cara diatas. Semoga membantu