Question

使用Laravel 5.1时，我正在尝试创建一个会自动更新以下3列的Observer

created_by：在创建的记录中填充＆＃34;永远不再更新此消息＆＃34;
modified_by：每次修改记录时填充新值
purged_by：在软删除记录时填充值。

据我所知，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Observer和一个特性来处理这个问题。这就是我所做的

1）创建了一个名为＆＃34; ModelSignature＆＃34;的观察者类。位于app\Observers\ModelSignature.php，这是它的内容

<?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＆＃34; RecordSignature＆＃34;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，在我的＆＃34;帐户＆＃34;模型位于＆＃34; app \ Models \ Account.php＆＃34;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;
    }

}

问题是方法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解雇！

我在这里做错了什么？

Answer 1

你应该能够摆脱你的ModelSignatures类并将你的特性改为：

client.getProductsPage(0) { products, page, reachedEnd, error in
    guard error == nil else {
        // Handle errors here
        return
    }

    self.products = products   // you may have to do a cast here
}

希望这有帮助！

Answer 2

我建议您使用此类升级https://github.com/fico7489/laravel-revisionable-upgrade

的venturecraft可修订包

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编辑模型的信息，你可以获得编辑特定列的信息，甚至特定的价值等...... < / p>

Answer 3

第1步：制作特质

namespace App\Traits;

use App\Observer\ModelObserver;

trait ObservantTrait
{

    public static function bootObservantTrait()
    {
        static::observe(ModelObserver::class);
    }

}

第2步：建立观察者

<?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;

如何使用laravel 5.1使用谁更新记录的user_id填充modified_by？

3 个答案: