baoshi-was/app/Services/RejectedBillService.php

<?php 

namespace App\Services; 

use App\RejectedBill;

Class RejectedBillService
{ 
    private function conditionQuery(array $params){
        $query = RejectedBill::query();
        if ($params['order_number'] ?? false){
            $query->whereIn('order_number',$params['order_number']);
        }
        return $query;
    }
    
    public function get(array $params){
        return $this->conditionQuery($params)->get();
    }


    public function create(array $params){
        return RejectedBill::query()->create($params);
    }
}