config-service/app/Repositories/ConfigCityManagementRepository.php

<?php

namespace App\Repositories;

use App\Models\ConfigCityManagement;

class ConfigCityManagementRepository
{
    public function __construct(ConfigCityManagement $configCityManagement)
    {
        $this->configCityManagement = $configCityManagement;
    }


    public function index($request)
    {
        $perPage = isset($request['per_page']) ? $request['per_page'] : env('PER_PAGE');
        if (isset($request['city_id'])) {

            $this->configCityManagement = $this->configCityManagement
                ->orderBy('id', 'desc')
                ->where(['status' => 1,'city_id' => $request['city_id']]);
        }else{
            $this->configCityManagement = $this->configCityManagement
                ->orderBy('id', 'desc')
                ->where('status',1);
        }

            return $this->configCityManagement->paginate($perPage);

    }
}