php - 如何连接具有不同关系的多个表并在 Laravel 5.3 中使用 attach()

Question

我正在尝试使用 Laravel 5.3 在我的项目中注册时管理(初始)用户的角色。我已经第一次让它工作了，但我不得不添加另一个表，现在我迷路了。

我有 4 个表，Company、User、Role 和一个用于用户和角色的数据透视表名为Role_Users

公司表有comp_id

用户表有comp_id、user_id

角色表有role_id、role_desc

Role_Users 表有comp_id、user_id、role_id

---

用户模型

class User extends Model implements Authenticatable{
    public function company(){
        return $this->belongsTo('App\Company', 'comp_id');
     }

    public function roles(){
       return $this->belongsToMany('App\Role', 'role_users', 'user_id', 'role_id')->withTimeStamps();
    }
}

---

榜样

class Role extends Model{
    public function users(){
        return $this->belongsToMany('App\User', 'role_users')->withTimeStamps();
    }

    public function comp(){
        return $this->belongsToMany('App\Company', 'role_users')->withTimeStamps();
    }

}

---

公司模式

class Company extends Model{
    protected $primaryKey = 'comp_id';  

    public function members(){
        return $this->hasMany('App\User', 'comp_id');
    }

    public function roles(){
        return $this->hasMany('App\Role', 'role_users')->withTimeStamps();
    }
}

---

系统是这样的:

each **User** belongs to many **Role**
each **Role** belongs to many **User**

User、Role 和 Role_Users 部分之间的关​​系已经正常工作。但我不得不更改并向每个表添加一个公司字段，因为它会被许多想试用该程序的公司使用。

each **Company** has many **User**
each **User** belongs to **Company**

我正在尝试像这样使用 attach():

账户管理员

 public function setupaccountcomplete($comp, $user){
    $comp_id = $comp;
    $user_id = $user;

    $updateData = [];
    $updateData['user_id'] = $user_id;
    $updateData['user_sex'] = Input::get('user_sex');
    $updateData['user_civilstatus'] = Input::get('user_civilstatus');
    $updateData['user_birthday'] = Input::get('user_bday');
    $updateData['user_birthplace'] = Input::get('user_bplace');
    $updateData['user_address'] = Input::get('user_address');
    $updateData['user_mobile'] = Input::get('user_mobile');
    $updateData['user_landline'] = Input::get('user_landline');
    $updateData['user_email'] = Input::get('user_email');
    $updateData['user_zip'] = Input::get('user_zip');
    $updateData['user_nationality'] = Input::get('user_nationality');
    $updateData['user_religion'] = Input::get('user_religion');
    $updateData['user_educAttain'] = Input::get('user_educAttain');
    $updateData['user_school'] = Input::get('user_school');
    $updateData['user_schooladdress'] = Input::get('user_schooladdress');
    $updateData['user_addedby'] = $user_id;

    $updatesql = DB::table('users')
        ->where('user_id', '=', $updateData['user_id'])
        ->update(['user_sex' => $updateData['user_sex'],
            'user_civilstatus' => $updateData['user_civilstatus'],
            'user_bday' => $updateData['user_birthday'],
            'user_bplace' => $updateData['user_birthplace'],
            'user_address' => $updateData['user_address'],
            'user_mobile' => $updateData['user_mobile'],
            'user_landline' => $updateData['user_landline'],
            'user_landline' => $updateData['user_landline'],
            'user_zip'=> $updateData['user_zip'],
            'user_religion'=> $updateData['user_religion'],
            'user_nationality' => $updateData['user_nationality'],
            'user_educAttain' => $updateData['user_educAttain'],
            'user_school' => $updateData['user_school'],
            'user_schooladdress' => $updateData['user_schooladdress'],
            'user_addedby' => $updateData['user_addedby']
            ]);

    $user = User::find($user_id);
    $user->roles()->attach(Role::where('role_desc', 'Superadmin')->first());

    return Redirect::route('setupcooperative', array('comp' => $comp_id, 'user' => $user_id));

}

在我的 AccountController 中，用户的 role_id 为“1”，但 comp_id 为空。

有人可以帮助我吗？我认为我在模型中的关系是错误的。此外，当我尝试执行此行时，我收到了一个 Call to undefined method Illuminate\Database\Query\Builder::roles():

 $user->company()->roles()->attach(Role::where('role_desc', 'Superadmin')->first());

Answer 1

如 Laravel 文档中所述，attach() 获取您要附加的角色的 ID，而不是角色本身:

https://laravel.com/docs/5.3/eloquent-relationships#updating-many-to-many-relationships

$user->roles()->attach(Role::where('role_desc', 'Superadmin')->first());

应该是:

$user->roles()->attach(Role::where('role_desc', 'Superadmin')->get('id')->first());