Symfony 2:显示图像mediumblob

时间:2014-08-05 21:20:34

标签: php mysql symfony doctrine

我试图用Symfony 2显示我的数据库的MEDIUMBLOB字段,其中包含图像,但我无法做到......

为此,我创建了自己的Doctrine类型。这是代码:

<?php
/**
 * Personal type to support MediumBlob
 *
 * @author Leglopin
 */
namespace MC\UserBundle\Doctrine\Types;

use Doctrine\DBAL\Platforms\AbstractPlatform;
use Doctrine\DBAL\DBALException;
use Doctrine\DBAL\Types\Type;

/**
 * Type that maps a PHP object to a mediumblob SQL type.
 */
class MediumBlobType extends Type
{
    const MEDIUMBLOB = 'mediumblob';

    public function getName()
    {
        return self::MEDIUMBLOB;
    }

    public function getSQLDeclaration(array $fieldDeclaration, AbstractPlatform $platform)
    {
        return $platform->getDoctrineTypeMapping('MEDIUMBLOB');
    }

    public function convertToDatabaseValue($value, AbstractPlatform $platform)
    {
        return ($value === null) ? null : base64_encode($value);
    }

    public function convertToPHPValue($value, AbstractPlatform $platform)
    {
        return ($value === null) ? null : base64_decode($value);
    }
}

然后,要显示我执行此操作的图像:

<img src="data:image/jpeg;base64,{{ photo }}">

照片变量在我的控制器中定义如下:

$photo = base64_encode($user->getPhoto());

但没有显示任何内容

感谢您的帮助!

1 个答案:

答案 0 :(得分:0)

是的,我在我的控制器文件中添加了我的类型:

public function boot()
{
    $em = $this->container->get('doctrine.orm.default_entity_manager');

    Type::addType('mediumblob', 'MC\UserBundle\Doctrine\Types\MediumBlobType');

    $em->getConnection()->getDatabasePlatform()
       ->registerDoctrineTypeMapping('MEDIUMBLOB', 'mediumblob');
}