laravel_sketch/app/Modules/Mini/Services/AddressService.php

<?php

namespace App\Modules\Mini\Services;

use App\Base\BaseService;
use App\Models\User\User;
use App\Models\User\UserAddress;

class AddressService extends BaseService
{
    public function store(User $user, $params)
    {
        $id = $params['id'];
        if ($id) {
            $address = UserAddress::where("id", $id)->where("user_id", $user->id)->firstOrFail();
        } else {
            $address = new UserAddress();
            $address->user_id = $user->id;
        }

        $address->address = $params['address'];
        $address->name = $params['name'];
        $address->phone = $params['phone'];
        $address->is_default = (int)$params['is_default'];

        if (UserAddress::where("user_id", $user->id)->count() == 0) {
            $address->is_default = 1;
        }

        $address->area = $params['area'];
        $address->save();

        if ($address->is_default == 1) {
            UserAddress::where("user_id", $user->id)->where("id", "<>", $address->id)->update([
                "is_default" => 0,
            ]);
        }
    }

    public function paginate(User $user, $params)
    {
        $p = UserAddress::where("user_id", $user->id)->orderByDesc("id")->paginate($params['page_size']);

        return [
            "total" => $p->total(),
            "page_total" => $p->lastPage(),
            "list" => array_map(function (UserAddress $model) {
                return [
                    "id" => $model->id,
                    "is_default" => $model->is_default,
                    "name" => $model->name,
                    "phone" => $model->phone,
                    "area" => $model->area,
                    "address" => $model->address,
                ];
            }, $p->items()),
        ];
    }
}