主id引用另一个枢轴的laravel雄辩枢轴

// User.php 模型类
namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class User extends Model
{
    protected $table = 'users';

    // 定义与 roles 表的关联关系
    public function role()
    {
        return $this->belongsTo(Role::class);
    }
}

// Role.php 模型类
namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class Role extends Model
{
    protected $table = 'roles';

    // 定义与 users 表的关联关系
    public function users()
    {
        return $this->hasMany(User::class);
    }
}

// User.php 模型类
namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class User extends Model
{
    // ...

    public function role()
    {
        return $this->belongsTo(Role::class);
    }
}

// Role.php 模型类
namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class Role extends Model
{
    // ...

    public function users()
    {
        return $this->hasMany(User::class);
    }
}

// 获取用户的角色信息
$user = User::find(1);
$role = $user->role;