如何在创建资源时附加相关资源- Laravel Nova

// app/Models/User.php
namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class User extends Model
{
    public function posts()
    {
        return $this->hasMany(Post::class);
    }
}

// app/Models/Post.php
namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class Post extends Model
{
    public function user()
    {
        return $this->belongsTo(User::class);
    }
}

// app/Nova/User.php
namespace App\Nova;

use App\Models\User;
use Laravel\Nova\Fields\ID;
use Laravel\Nova\Fields\Text;
use Laravel\Nova\Fields\BelongsTo;
use Laravel\Nova\Fields\HasMany;

class User extends Resource
{
    public static $model = User::class;

    public function fields(Request $request)
    {
        return [
            ID::make(__('ID'), 'id')->sortable(),
            Text::make(__('Name'), 'name'),
            HasMany::make(__('Posts'), 'posts', Post::class),
        ];
    }
}

// app/Nova/Post.php
namespace App\Nova;

use App\Models\Post;
use Laravel\Nova\Fields\ID;
use Laravel\Nova\Fields\Text;
use Laravel\Nova\Fields\BelongsTo;

class Post extends Resource
{
    public static $model = Post::class;

    public function fields(Request $request)
    {
        return [
            ID::make(__('ID'), 'id')->sortable(),
            Text::make(__('Title'), 'title'),
            BelongsTo::make(__('User'), 'user', User::class),
        ];
    }
}