Question

我有一个问题，想弄清楚如何将Symfony 3.0与Gaufete一起使用，以便上传到s3存储桶。

根据文件：https://github.com/KnpLabs/KnpGaufretteBundle

我已经设置了config.yml：

knp_gaufrette:
    adapters:
        photostorage:
            amazon_s3:
                amazon_s3_id:   amazonS3
                bucket_name:    '%save_location%'
                options:
                    directory:  'symphotest'

和services.yml：

services:
    amazonS3:
         class: Aws\S3\S3Client
        factory_class: Aws\S3\S3Client
        factory_method: 'factory'
        arguments:
            key: %amazon_s3.key%
            secret: %amazon_s3.secret%
            region: %amazon_s3.region%

因为我想使用自定义环境变量任何类型的配置我传给它一个文件params.php：

  $container->setParameter('save_type','s3');
  $container->setParameter('save_location',getenv('BUCKET'));
  $container->setParameter('aws_key',getenv('S3_ACCESS'));
  $container->setParameter('aws_secret_key',getenv('S3_SECRET'));

我把它包含在config.yml的顶部：

imports:
    - { resource: params.php }
    - { resource: security.yml }
    - { resource: services.yml }

我已经创建了一个实体名称Images.php：

<?php

namespace AppBundle\Entity;

use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\HttpFoundation\File\UploadedFile;
use Symfony\Component\Validator\Constraints as Assert;

use Gaufrette\Adapter\AwsS3 as AwsS3Adapter;
use Gaufrette\Filesystem;

/**
* @ORM\Entity
* @ORM\Table(name="images")
* @ORM\HasLifecycleCallbacks
*/
class Images
{
  /**
   * @ORM\Column(type="string", length=60)
   * @ORM\Id
   * @ORM\GeneratedValue(strategy="CUSTOM")
   * @ORM\CustomIdGenerator(class="AppBundle\Doctrine\AutoIdGenerate")
   */
  private $id;

  /**
  * @ORM\Column(type="string", length=100)
  */
  private $name;

  /**
  * @ORM\Column(type="string", length=100)
  */
  private $name_small;

  /**
  * @ORM\ManyToOne(targetEntity="AppBundle\Entity\ImageGroups", inversedBy="images")
  */
  private $users;

  /**
  * @Assert\File(maxSize="6000000")
  */
  private $file;

  private $tmp;
  private $path;

  public function getFile()
  {
    return $file;
  }

  public function setFile(UploadedFile $file = null)
  {
    $this->file=$file;

  };


  public function __construct()
  {
    //IDK what to do here
  }

  /**
    * @ORM\PrePersist()
    * @ORM\PreUpdate()
    */
   public function preUpload()
   {
       if (null !== $this->getFile())
       {
           $filename = sha1(uniqid(gethostname(), true));
           $this->name = $filename.'.'.$this->getFile()->guessExtension();
           $this->$name_small='small'.$filename.'.'.$this->getFile()->guessExtension();
       }
   }

   /**
    * @ORM\PostPersist()
    * @ORM\PostUpdate()
    */
   public function upload()
   {
       if (null === $this->getFile())
       {
           return;
       }

       // if there is an error when moving the file, an exception will
       // be automatically thrown by move(). This will properly prevent
       // the entity from being persisted to the database on error
       $this->getFile()->move($this->getUploadRootDir(), $this->path);

       // check if we have an old image
       if (isset($this->temp))
       {
           // delete the old image
           unlink($this->getUploadRootDir().'/'.$this->temp);
           // clear the temp image path
           $this->temp = null;
       }
       $this->file = null;
   }

   /**
    * @ORM\PostRemove()
    */
   public function removeUpload()
   {
       $file = $this->getAbsolutePath();
       if ($file)
       {
         //Do stuff for Deleting
       }
   }


  /**
   * Get id
   *
   * @return string
   */
  public function getId()
  {
    return $this->id;
  }


  /**
   * Get name
   *
   * @return string
   */
  public function getName()
  {
      return $this->name;
  }

  /**
   * Get nameSmall
   *
   * @return string
   */
  public function getNameSmall()
  {
      return $this->name_small;
  }
}

但我不知道如何获得S3 Adapter和客户端，因为在此示例中：https://github.com/KnpLabs/Gaufrette/blob/master/doc/adapters/awsS3.md

启动s3客户端和文件系统。但是在Symfony 3.0上我已经在config.yml上配置了它们。因此，必须有另一种方法来获得它们。

我想要的只是一个使用示例。

Answer 1

我建议你阅读这篇文章：https://blog.fortrabbit.com/new-app-cloud-storage-s3

是一个快速入门指南，介绍了您可以使用分散存储的原因并涵盖以下主题：

如何注册AWS账户
如何创建第一个S3存储桶存储容器 - 文件的名称空间
如何设置适当的权限 - 使用其他凭据进行安全访问

或者，我对LeaguePHP适配器有很好的经验：

League\Flysystem\AwsS3v3

它提供了一个简单的api，用于将amazon web服务用于文件和内容！它是独立的兼容或使用Symfony或laravel。查看文档。您可以从源文件夹中查看方法。

Answer 2

请勿将服务注入实体：这是一种不好的做法。

改为使用Doctrine事件订阅者：如Symfony docs

中所述

# app/config/services.yml
services:
    # ...
    AppBundle\EventListener\SearchIndexerSubscriber:
        tags:
            - { name: doctrine.event_subscriber }

事件订阅者：

// src/AppBundle/EventListener/SearchIndexerSubscriber.php
namespace AppBundle\EventListener;

use AppBundle\Entity\Product;
use Doctrine\Common\EventSubscriber;
// for Doctrine < 2.4: use Doctrine\ORM\Event\LifecycleEventArgs;
use Doctrine\Common\Persistence\Event\LifecycleEventArgs;
use Doctrine\ORM\Events;

class SearchIndexerSubscriber implements EventSubscriber
{
    public function getSubscribedEvents()
    {
        return [
            Events::postPersist,
            Events::postUpdate,
        ];
    }

    public function postUpdate(LifecycleEventArgs $args)
    {
        $this->index($args);
    }

    public function postPersist(LifecycleEventArgs $args)
    {
        $this->index($args);
    }

    public function index(LifecycleEventArgs $args)
    {
        $entity = $args->getObject();

        // perhaps you only want to act on some "Product" entity
        if ($entity instanceof Product) {
            $entityManager = $args->getObjectManager();
            // ... do something with the Product
        }
    }
}

如何使用Gaufrette和Symfony 3.0

2 个答案: