使用 Laravel 5.1 时,我尝试创建一个观察者,它会自动更新以下 3 列
我知道 Eloquent 会自动更新日期时间戳(created_by、updated_at、removed_at),但我需要更新进行更改的 user_id。
我被建议使用观察者和一个特征来处理这个问题。这是我所做的
1)创建了一个名为“ModelSignature”的观察者类,位于
app\Observers\ModelSignature.php
,这就是它的内容
<?php
namespace App\Observers;
class ModelSignature {
protected $userID;
public function __construct(){
$this->userID = Auth::id();
}
public function updating($model)
{
$model->modified_by = $this->userID;
}
public function creating($model)
{
$model->created_by = $this->userID;
}
public function removing($model)
{
$model->purged_by = $this->userID;
}
}
然后我创建了一个名为“RecordSignature”的新特征,位于
app\Traits\RecordSignature.php
并包含以下代码
<?php
namespace App\Traits;
use app\Observers\ModelSignature;
trait RecordSignature
{
public static function bootObservantTrait()
{
static::observe(new ModelSignature() );
}
}
最后,在位于“app\Models\Account.php”的“Account”模型中,我像这样使用它
<?php
namespace App\Models;
use Illuminate\Database\Eloquent\Model;
use App\Models\industry;
use App\Traits\RecordSignature;
use App\Traits\TrimScalarValues;
class Account extends Model
{
use RecordSignature, TrimScalarValues;
/**
* The database table used by the model.
*
* @var string
*/
protected $table = 'accounts';
protected $primaryKey = 'account_id';
const CREATED_AT = 'created_on';
const UPDATED_AT = 'modified_on';
const REMOVED_AT = 'purged_on';
/**
* The attributes that are mass assignable.
*
* @var array
*/
protected $fillable = ['client_id','account_name', 'company_code', 'legal_name', 'created_by','modified_by','instrucations'];
/**
* The attributes excluded from the model's JSON form.
*
* @var array
*/
//protected $hidden = ['account_id', 'remember_token'];
protected $guarded = ['account_id'];
/**
* Get the industry record associated with the account.
*/
public function industry()
{
return $this->hasOne(industry, industry::primaryKey);
}
public function pk(){
return $this->primaryKey;
}
}
问题在于方法
updating()
、removing()
和 creating()
没有按预期填充 userId。似乎字段被忽略或方法没有被触发!
我在这里做错了什么?
您应该能够摆脱 ModelSignatures 类并将您的特征更改为:
trait RecordSignature
{
protected static function boot()
{
parent::boot();
static::updating(function ($model) {
$model->modified_by = \Auth::User()->id;
});
static::creating(function ($model) {
$model->created_by = \Auth::User()->id;
});
//etc
}
}
更新:
现在有很多软件包可以为您处理此类事情。我目前经常使用的一个是Laravel Auditing,它不仅会跟踪执行任务的人,还会跟踪对行的任何更改。
我建议您在本次升级中使用venturecraft可修订包https://github.com/fico7489/laravel-revisionable-upgrade
一切都会开箱即用,你只需要使用 2 个特征,你可以做更多的事情来获取谁编辑了模型的信息,你可以获取谁编辑了特定列的信息,甚至特定值等等......
第 1 步:创建特质
namespace App\Traits;
use App\Observer\ModelObserver;
trait ObservantTrait
{
public static function bootObservantTrait()
{
static::observe(ModelObserver::class);
}
}
第 2 步:创建观察者
<?php
namespace App\Observer;
use Illuminate\Auth\AuthManager;
use Illuminate\Contracts\Config\Repository;
use Request;
class ModelObserver
{
public $userID;
protected $auth;
protected $login_user;
protected $ip;
protected $user_agent;
public function __construct(AuthManager $auth, Repository $config)
{
$this->auth = $auth;
$this->login_user = $auth->guard($this->auth->getDefaultDriver())->user();
if (isset($this->login_user->id)) {
$this->userID = $this->login_user->id;
$this->ip = Request::ip();
$this->user_agent = Request::header('user-agent');
}
}
public function updating($model)
{
$model->updated_by = $this->userID;
$model->ip = Request::ip();
$model->user_agent = Request::header('user-agent');
}
public function creating($model)
{
$model->created_by = $this->userID;
$model->ip = Request::ip();
$model->user_agent = Request::header('user-agent');
}
public function deleted($model)
{
$model->deleted_by = $this->userID;
$model->ip = Request::ip();
$model->user_agent = Request::header('user-agent');
$model->save();
}
}
第3步:模型中的用户特征
use ObservantTrait;