写下与Eloquent ORM / Laravel的很多关系(Write to hasMany relationship with Eloquent ORM/Laravel)

 关于Laravel的雄辩ORM的问题。 我已经看过SO了，如果我错过了类似的问题，我会道歉。 
 
 我有一个User模型，我正在尝试通过User模型中的关系将一组权限写回UserPermissions模型。 
 
 我已经设置了hasMany链接，并且可以从User对象（ $user->roles ）中检索正确的数据，但是如果可能的话，无法解决如何回写的问题。 
 
 这是我的基本用户模型： 
 
class User extends Eloquent {

    protected $table = 'users';

    public $timestamps = false;

    protected function roles() {

        return $this->hasMany('UserPermission');

    }

}
 
 和UserPermission模型： 
 
class UserPermission extends Eloquent {

    protected $table = 'users_permissions';

    public $timestamps = false;

    protected $fillable = ['role_id', 'user_id'];

}
 
 在这个阶段，我已经恢复保存用户，然后运行UserPermission::insert() ，它允许传递一个数组，但如果可能的话，我宁愿一步完成。 
 
 有人知道这是否可行？ 
 
 谢谢！ 
 
 
 更新 ： 
 
 表格结构如下： 
 
 用户表 
 
+------------------+------------------+------+-----+---------+----------------+
| Field            | Type             | Null | Key | Default | Extra          |
+------------------+------------------+------+-----+---------+----------------+
| id               | int(10) unsigned | NO   | PRI | 0       | auto_increment |
| username         | varchar(255)     | NO   |     |         |                |
+------------------+------------------+------+-----+---------+----------------+
 
 users_roles表 
 
+------------------+------------------+------+-----+---------+----------------+
| Field            | Type             | Null | Key | Default | Extra          |
+------------------+------------------+------+-----+---------+----------------+
| id               | int(10) unsigned | NO   | PRI | 0       | auto_increment |
| name             | varchar(255)     | NO   |     |         |                |
| description      | varchar(255)     | YES  |     | NULL    |                |
| url_access       | varchar(255)     | NO   |     |         |                |
+------------------+------------------+------+-----+---------+----------------+
 
 users_permissions表 
 
+------------------+------------------+------+-----+---------+----------------+
| Field            | Type             | Null | Key | Default | Extra          |
+------------------+------------------+------+-----+---------+----------------+
| id               | int(10) unsigned | NO   | PRI | 0       | auto_increment |
| role_id          | int(10) unsigned | NO   |     |         |                |
| user_id          | int(10) unsigned | NO   |     |         |                |
+------------------+------------------+------+-----+---------+----------------+
 
 role_id与users_roles.id ， user_id与users.id 
 
 作为后台逻辑， users_roles表有一个url_access列，其中包含一个url。 如果将用户分配给该角色，则他们可以从该URL访问子页面。 

Question about Laravel's Eloquent ORM. I've had a look on SO already, apologies if I've missed a similar question.
 
I have a User model, and I'm trying to write an array of Permissions back to the UserPermissions model, via the relationship in the User model.
 
I've setup the hasMany link already, and can retrieve the correct data from the User object ($user->roles), but can't work out how to write back if it is at all possible.
 
This is my basic user model:
 
class User extends Eloquent {

    protected $table = 'users';

    public $timestamps = false;

    protected function roles() {

        return $this->hasMany('UserPermission');

    }

}
 
and the UserPermission model:
 
class UserPermission extends Eloquent {

    protected $table = 'users_permissions';

    public $timestamps = false;

    protected $fillable = ['role_id', 'user_id'];

}
 
At this stage, I've reverted to saving the User, and then running UserPermission::insert(), which allows an array to be passed, but I'd prefer to do it in one step if possible.
 
Anyone know if this is possible?
 
Thanks!
 
 
UPDATE:
 
Table structure is below for your perusal:
 
users table
 
+------------------+------------------+------+-----+---------+----------------+
| Field            | Type             | Null | Key | Default | Extra          |
+------------------+------------------+------+-----+---------+----------------+
| id               | int(10) unsigned | NO   | PRI | 0       | auto_increment |
| username         | varchar(255)     | NO   |     |         |                |
+------------------+------------------+------+-----+---------+----------------+
 
users_roles table
 
+------------------+------------------+------+-----+---------+----------------+
| Field            | Type             | Null | Key | Default | Extra          |
+------------------+------------------+------+-----+---------+----------------+
| id               | int(10) unsigned | NO   | PRI | 0       | auto_increment |
| name             | varchar(255)     | NO   |     |         |                |
| description      | varchar(255)     | YES  |     | NULL    |                |
| url_access       | varchar(255)     | NO   |     |         |                |
+------------------+------------------+------+-----+---------+----------------+
 
users_permissions table
 
+------------------+------------------+------+-----+---------+----------------+
| Field            | Type             | Null | Key | Default | Extra          |
+------------------+------------------+------+-----+---------+----------------+
| id               | int(10) unsigned | NO   | PRI | 0       | auto_increment |
| role_id          | int(10) unsigned | NO   |     |         |                |
| user_id          | int(10) unsigned | NO   |     |         |                |
+------------------+------------------+------+-----+---------+----------------+
 
role_id relates to users_roles.id and user_id relates to users.id
 
As background logic, the users_roles table has a url_access column which contains a url. If the user is assigned to that role, they have access to the subpages from that url.

原文：https://stackoverflow.com/questions/21295850