如何在Laravel Nova扩展一个领域？

composer create-project --prefer-dist laravel/nova YourPackage

namespace YourPackage\Fields;

use Laravel\Nova\Fields\Field;

class YourCustomField extends Field
{
    // ...
}

use Laravel\Nova\Nova;
use YourPackage\Fields\YourCustomField;

public function boot()
{
    Nova::serving(function (Serving $serving) {
        $serving->addons[] = function () {
            return new YourCustomField;
        };
    });
}

php artisan vendor:publish --provider="YourPackage\YourPackageServiceProvider"

use YourPackage\Fields\YourCustomField;

public function fields(Request $request)
{
    return [
        ID::make(__('ID'), 'id')->sortable(),
        YourCustomField::make(__('Your Custom Field'), 'your_custom_field'),
    ];
}