FetchAllCouponsMethodObject.php

<?php

//...

class FetchAllCouponsMethodObject
{
    /**
     * @var null|string
     */
    private $filterableKeyword;

    /**
     * @var array
     */
    private $orders;

    /**
     * @var Model
     */
    private $eloquentModel;

    /**
     * @var int
     */
    private $pageSize;

    /**
     * FetchAllCouponsMethodObject constructor.
     *
     * @param $eloquentModel
     * @param $filterableKeyword
     * @param array $orders
     * @param $pageSize
     */
    public function __construct($eloquentModel, $filterableKeyword, array $orders, $pageSize)
    {
        $this->filterableKeyword = $filterableKeyword;
        $this->orders = $orders;
        $this->eloquentModel = $eloquentModel;
        $this->pageSize = $pageSize;
    }

    /**
     * Handle method object.
     *
     * @return LengthAwarePaginator
     */
    public function handle()
    {
        $query = $this->eloquentModel
            ->newQuery()
            ->select([
                'coupons.*'
            ]);

        if (! is_null($this->filterableKeyword)) {
            $query->where(function (QueryBuilder $query) {
                $query->where('coupons.name', 'like', '%' . $this->filterableKeyword . '%');
                $query->orWhere('coupons.code', 'like', '%' . $this->filterableKeyword . '%');
                $query->orWhere('coupons.description', 'like', '%' . $this->filterableKeyword . '%');
                $query->orWhere('coupons.internal_description', 'like', '%' . $this->filterableKeyword . '%');
            });
        }

        $query->leftJoin('plans', 'plans.id', '=', 'plan_id');

        $query->orders = $this->orders;

        $results = $query->paginate($this->pageSize);

        $data = $results->map(function ($item) {
            return (new CouponTransform())->transform($item);
        });

        return new LengthAwarePaginator($data, $results->total(), $this->pageSize, $results->currentPage());
    }
}