Laravel Sort具有Array值的多种关系

Question

I have this method in a Model called Category, that brings all products from certain Category.

public function products()
{
    return $this->hasMany(Product::class);
}

What I would like is put these products in order based on Array with IDs.

I tried this but didn't work:

public function products()
{
    if ( !is_null($this->products_order)) {
        $order = json_decode($this->products_order, true);

        $products = $this->hasMany(Product::class)->orderBy('id',...$order);
        return $products;
    }

    return $this->hasMany(Product::class);
}

$this->products_order is a Array of IDs.