PHP

laravel orderby with relation

$users = User::with(['student' => function ($q) {
            $q->orderBy('id', 'desc');
        }]);

laravel Order by relationship

public function latestPost()
{
    return $this->hasOne(AppPost::class)->latest();
}

$users = Topic::with('latestPost')->get()->sortByDesc('latestPost.created_at');

laravel query order by relation

$order = 'desc';
$users = User::join('roles', 'users.role_id', '=', 'roles.id')->orderBy('roles.label', $order)->select('users.*')->paginate(10);

laravel OrderBy on Eloquent whereHas relationship

$counties = County::whereHas('items', function ($query) {
    $query->where('approved', 1);
})->orderBy('name')->get();