Symfony2 FOSUserBundle文件上傳（配置文件Pic）提示？

Question

我即將開始嘗試在我正在使用的使用FOSUserBundle的symfony2項目中向我的用戶實體添加個人資料圖片字段。 我覺得這應該很簡單，但是，我沒有找到任何有用的文檔來解釋如何做到這一點。

目前，我正計划在我的表單對象（我從通用的ProfileEdit表單中擴展）中添加一個未映射的字段，該字段采用上傳的文件。 然后，我將為FOSUserEvents::PROFILE_EDIT_SUCCESS或FOSUserEvents::PROFILE_EDIT_COMPLETED創建一個事件監聽器，它將采用表單，處理文件上載並保留上載文件的路徑（使用獲取公共URL和絕對路徑的方法）在我的User對象中，在向Response flashbag添加消息之前說它成功或不成功。 這真的是正確/最佳實踐方式嗎？ 或者我錯過了什么？ 這個功能真的還沒有包含在FOSUserBundle中嗎？ 如果是這樣的話，我沒有找到它的文檔，但是如果它是......那就會喜歡它

任何幫助/提示/伏都教建議將非常感謝！

Answer 1

所以，事實證明我迷失了回答這個問題：文件上傳本身不需要由FOSUserBundle處理，而是由Doctrine處理。 我向我的User實體添加了一個屬性，該屬性不是持久化的，但是表單只是用它來編輯用戶的配置文件。 在下面的代碼中，此屬性是$profilePictureFile 。 然后，生命周期回調確保在保留實體之前將此文件復制到相關位置（並且在編輯和刪除時類似）。

盡管如此，我還是認為我會在這里發布一個答案，以幫助那些發現自己希望將來在FOSUserBundle中向用戶添加個人資料圖片的人。

相關文檔是： http ： //symfony.com/doc/current/cookbook/doctrine/file_uploads.html https://github.com/FriendsOfSymfony/FOSUserBundle/blob/master/Resources/doc/overriding_forms.rst

<?php
// DAWeldonExampleBundle/Entity/User.php
namespace DAWeldon\Example\UserBundle\Entity;

use FOS\UserBundle\Model\User as BaseUser;
use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Validator\Constraints as Assert;
use Symfony\Component\HttpFoundation\File\UploadedFile;
use Symfony\Component\Security\Core\Util\SecureRandom;

/**
 * @ORM\Entity()
 * @ORM\HasLifecycleCallbacks()
 * @ORM\Table(name="fos_user")
 */
class User extends BaseUser
{
    /**
     * @ORM\Id
     * @ORM\Column(type="integer")
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    protected $id;

    /**
     * @ORM\Column(type="datetime")
     */
    protected $lastEdited;

    /**
     * @ORM\Column(type="string", length=255)
     * @Assert\NotBlank(message="Please enter your surname.", groups={"Registration", "Profile"})
     */
    protected $surname;

    /**
     * @ORM\Column(type="string", length=255)
     * @Assert\NotBlank(message="Please enter your forename.", groups={"Registration", "Profile"})
     */
    protected $forename;

    /**
     * @ORM\Column(type="string", length=255, nullable=true)
     */
    protected $nickname;

    /**
     * @Assert\File(maxSize="2048k")
     * @Assert\Image(mimeTypesMessage="Please upload a valid image.")
     */
    protected $profilePictureFile;

    // for temporary storage
    private $tempProfilePicturePath;

    /**
     * @ORM\Column(type="string", length=255, nullable=true)
     */
    protected $profilePicturePath;

    public function __construct()
    {
        parent::__construct();
        // your own logic
    }

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

    /**
     * Set surname
     *
     * @param string $surname
     * @return User
     */
    public function setSurname($surname)
    {
        $this->surname = $surname;

        return $this;
    }

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

    /**
     * Set forename
     *
     * @param string $forename
     * @return User
     */
    public function setForename($forename)
    {
        $this->forename = $forename;

        return $this;
    }

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

    /**
     * Asks whether the user is granted a particular role
     * 
     * @return boolean
     */
    public function isGranted($role)
    {
        return in_array($role, $this->getRoles());
    }

    /**
     * Set nickname
     *
     * @param string $nickname
     * @return User
     */
    public function setNickname($nickname)
    {
        $this->nickname = $nickname;

        return $this;
    }

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

    /**
     * Get the best way to address this person
     * 
     * @return string
     */
    public function getBestAddress() {
        if (empty($this->getNickname()) and empty($this->getForename()) && empty($this->getSurname())) {
            return $this->getUsername();
        }
        elseif (empty($this->getNickname())) {
            return $this->getForename().' '.$this->getSurname();
        }
        else {
            return $this->getNickname();
        }
    }

    /**
     * Sets the file used for profile picture uploads
     * 
     * @param UploadedFile $file
     * @return object
     */
    public function setProfilePictureFile(UploadedFile $file = null) {
        // set the value of the holder
        $this->profilePictureFile       =   $file;
         // check if we have an old image path
        if (isset($this->profilePicturePath)) {
            // store the old name to delete after the update
            $this->tempProfilePicturePath = $this->profilePicturePath;
            $this->profilePicturePath = null;
        } else {
            $this->profilePicturePath = 'initial';
        }

        return $this;
    }

    /**
     * Get the file used for profile picture uploads
     * 
     * @return UploadedFile
     */
    public function getProfilePictureFile() {

        return $this->profilePictureFile;
    }

    /**
     * Set profilePicturePath
     *
     * @param string $profilePicturePath
     * @return User
     */
    public function setProfilePicturePath($profilePicturePath)
    {
        $this->profilePicturePath = $profilePicturePath;

        return $this;
    }

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

    /**
     * Get the absolute path of the profilePicturePath
     */
    public function getProfilePictureAbsolutePath() {
        return null === $this->profilePicturePath
            ? null
            : $this->getUploadRootDir().'/'.$this->profilePicturePath;
    }

    /**
     * Get root directory for file uploads
     * 
     * @return string
     */
    protected function getUploadRootDir($type='profilePicture') {
        // the absolute directory path where uploaded
        // documents should be saved
        return __DIR__.'/../../../../web/'.$this->getUploadDir($type);
    }

    /**
     * Specifies where in the /web directory profile pic uploads are stored
     * 
     * @return string
     */
    protected function getUploadDir($type='profilePicture') {
        // the type param is to change these methods at a later date for more file uploads
        // get rid of the __DIR__ so it doesn't screw up
        // when displaying uploaded doc/image in the view.
        return 'uploads/user/profilepics';
    }

    /**
     * Get the web path for the user
     * 
     * @return string
     */
    public function getWebProfilePicturePath() {

        return '/'.$this->getUploadDir().'/'.$this->getProfilePicturePath(); 
    }

    /**
     * @ORM\PrePersist()
     * @ORM\PreUpdate()
     */
    public function preUploadProfilePicture() {
        if (null !== $this->getProfilePictureFile()) {
            // a file was uploaded
            // generate a unique filename
            $filename = $this->generateRandomProfilePictureFilename();
            $this->setProfilePicturePath($filename.'.'.$this->getProfilePictureFile()->guessExtension());
        }
    }

    /**
     * Generates a 32 char long random filename
     * 
     * @return string
     */
    public function generateRandomProfilePictureFilename() {
        $count                  =   0;
        do {
            $generator = new SecureRandom();
            $random = $generator->nextBytes(16);
            $randomString = bin2hex($random);
            $count++;
        }
        while(file_exists($this->getUploadRootDir().'/'.$randomString.'.'.$this->getProfilePictureFile()->guessExtension()) && $count < 50);

        return $randomString;
    }

    /**
     * @ORM\PostPersist()
     * @ORM\PostUpdate()
     * 
     * Upload the profile picture
     * 
     * @return mixed
     */
    public function uploadProfilePicture() {
        // check there is a profile pic to upload
        if ($this->getProfilePictureFile() === null) {
            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
        $this->getProfilePictureFile()->move($this->getUploadRootDir(), $this->getProfilePicturePath());

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

     /**
     * @ORM\PostRemove()
     */
    public function removeProfilePictureFile()
    {
        if ($file = $this->getProfilePictureAbsolutePath() && file_exists($this->getProfilePictureAbsolutePath())) {
            unlink($file);
        }
    }



    /**
     * Set lastEdited
     *
     * @param \DateTime $lastEdited
     * @return User
     */
    public function setLastEdited($lastEdited)
    {
        $this->lastEdited = $lastEdited;

        return $this;
    }

    /**
     * Get lastEdited
     *
     * @return \DateTime 
     */
    public function getLastEdited()
    {
        return $this->lastEdited;
    }

    /**
     * @ORM\PrePersist()
     * @ORM\PreUpdate()
     */
    public function setLastEditedValueAsNow() {
        $this->setLastEdited(new \DateTime());
    }

}

當然，配置文件表單如下所示：

<?php
// DAWeldonExampleBundle/Form/Type/ProfileFormType.php
namespace DAWeldon\Example\UserBundle\Form\Type;

use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;

class ProfileFormType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        // add your custom field
        $builder->add('username')
                ->add('surname')
                ->add('forename')
                ->add('nickname')
                ->add('profilePictureFile');
    }

    public function getParent()
    {
        return 'fos_user_profile';
    }

    public function getName()
    {
        return 'readypeeps_user_profile';
    }
}