Laravel模型中的當前用戶

Question

我需要在模型中獲取Auth::id()才能檢查當前用戶是否已投票。 如何在口才模型中訪問當前用戶？

型號：命名空間App；

use App\User;
use App\ArticleVote;
use Illuminate\Database\Eloquent\Model;

class Article extends Model {
  protected $fillable = ['title', 'body', 'link'];
  protected $appends = ['votesCount', 'isUserVoted'];

  public function getIsUserVotedAttribute() {
    return !!$this->votes()->where('user_id', \Auth::id())->first();
  }
}

在getIsUserVotedAttribute方法中，我得到\\Auth::id()為null

Answer 1

如果您打算在像這樣的controller創建Acticle的實例后調用方法getIsUserVotedAttribute() ：

$article = new Article;
$article->getIsUserVotedAttribute();

我建議您在定義method時將user id作為參數傳遞給

public function getIsUserVotedAttribute($user_id) {
     return !!$this->votes()->where('user_id', $user_id)->first();
}

然后您可以像這樣在控制器中使用它

$article = new Article;
$article->getIsUserVotedAttribute(Auth::user()->id);

希望能幫助到你

Answer 2

您可以在模型內部使用Auth::user()獲取當前用戶。

use Illuminate\\Support\\Facades\\Auth;

/*
 example code: adjust to your needs.
*/
public function getIsUserVotedAttribute()
{
    $user = Auth::user();
    if($user) {
        // using overtrue/laravelFollow (for this example)
        return $user->isVotedBy($this) // this is just an example, do whatever you wanted to do here
    }
    return false
}

（ laravel version 5.7 ）