Laravel 4:具有多对多关系时的身份验证

时间:2014-08-15 18:04:40

标签: php authentication laravel laravel-4 many-to-many

我有一个users,roles和role_users表。在角色表中,我有一个用户和管理员值。现在,我希望能够在用户角色为admin时编辑用户。我不知道如何在laravel中访问role_name =='admin'。

当我使用它时它起作用:

 @if(Auth::user()->user_username == 'Gilko')

但我希望能够访问此role_name == 'admin'

role_users migration

public function up()
    {
        Schema::create('role_users', function($table)
        {
            $table->increments('role_user_id');
            $table->integer('role_id')->unsigned();
            $table->integer('user_id')->unsigned();
        });

        Schema::table('role_users', function($table)
        {
            $table->foreign('role_id')
                ->references('role_id')->on('roles');
            //->onDelete('cascade');

            $table->foreign('user_id')
                ->references('user_id')->on('users');
            //->onDelete('cascade');
        });
    }

用户模型:

class User extends Eloquent implements UserInterface, RemindableInterface  {

   protected $table = 'users';

   protected $primaryKey = 'user_id';

   protected $hidden = ["password"];

   public function getAuthIdentifier()
   {
       return $this->getKey();
   }

   public function getAuthPassword()
   {
       return $this->user_password;
   }

   public function getReminderEmail()
   {
       return $this->email;
   }

   public function user()
   {
       return $this->hasMany('Checklist', 'user_id', 'user_id');
   }

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

   public function getRememberToken()
   {
       //return $this->remember_token;
   }

   public function setRememberToken($value)
   {
       //$this->remember_token = $value;
   }

   public function getRememberTokenName()
   {
       //return 'remember_token';
   }
}

2 个答案:

答案 0 :(得分:3)

你应该可以这样做:

if (Auth::user()->roles()->where('name', 'admin')->first())
如果没有结果,

first将返回null。

您还可以使用firstOrFailhttp://laravel.com/docs/eloquent

try (Auth::user()->roles()->where('name', 'admin')->firstOrFail()) {
    // User has admin role
} catch (ModelNotFoundException $e) {
    // User doesn't have admin role
}

编辑刚刚意识到我有一个大脑放屁。更正了代码: - )

答案 1 :(得分:2)

您可以在用户模型上添加一个检查此功能的功能......

public function isAdmin()
{
    return (bool)$this->roles()->where('name', 'admin')->count();
}

然后你可以轻松地将它用于......

@if(Auth::user()->isAdmin())