Example scope with lowest price

withPrice.php

<?php
    public function scopeWithPrice($smartphone)
    {
        $queryGetMinPrice = $smartphone->select([
            '*',
            'price' => ProductPrice::select('price')->where('priceable_type', Smartphone::class)->whereColumn('priceable_id', 'smartphones.id')->orderBy('price', 'ASC')->take(1)
        ]);
        return $queryGetMinPrice;
    }