我正在努力解决我需要 Sonata Media Bundle 将图片上传到不同文件夹的问题。我想要达到的是生成如下图片结构：如果图片的 ID 为 1234567，则原始图像将被放入文件夹：“/web/uploads/1234/567/original' 并且所有生成的缩略图/大小将类似于：“/web/uploads/1234/567/100x130”和“/web/uploads/1234/567/200x100”，具体取决于生成的大小。
在 Sonata Media Bundle 中是否可以生成此文件夹结构，如果可以，如何生成？
感谢您的回答。约瑟夫
我们为这个问题制定了一个“解决方法”：
基本上我们所做的是我们创建了自己的生成器、提供程序和大小调整器来满足我们的需求，然后将其注入到媒体包中。生成器实现了生成器接口，构造器只有一个参数（$this->firstLevel = 1000;）。比：
public function generatePath(MediaInterface $media)
{
$rep_first_level = (int) ($media->getId() / $this->firstLevel);
$rep_second_level = (int) ($media->getId() % $this->firstLevel);
return sprintf('%s/%04s/%03s', $media->getContext(), $rep_first_level, $rep_second_level);
}
这将以首选方式“/web/uploads/1234/567”为 ID 为“1234567”的图像创建子目录。
我们的提供者扩展了 ImageProvider 并且只有 1 个实例：
protected function generateReferenceName(MediaInterface $media)
{
$metadata = $media->getProviderMetadata();
$fileName = $metadata['filename'];
$temp = explode('.', $fileName);
$name = $temp[0];
return '/origos/' . $name . '.' . $media->getBinaryContent()->getExtension();
}
我们的 Resizer 类将扩展 squareResizer。这已更改为能够通过裁剪图像生成精确尺寸（100x100 和 190x100）的图片（缩略图）。为此，我们创建了一个实现 ResizerInterface 的新大小调整器：
<?php
namespace Sita\<YourBundle>\Resizer;
use Imagine\Image\ImagineInterface;
use Imagine\Image\Box;
use Imagine\Image\Point;
use Gaufrette\File;
use Sonata\MediaBundle\Model\MediaInterface;
use Sonata\MediaBundle\Metadata\MetadataBuilderInterface;
use Sonata\MediaBundle\Resizer\ResizerInterface;
class <YourResizer> implements ResizerInterface
{
/**
* ImagineInterface
*/
protected $adapter;
/**
* string
*/
protected $mode;
/**
* @param ImagineInterface $adapter
* @param string $mode
* @param MetadataBuilderInterface $metadata
*/
public function __construct(ImagineInterface $adapter, $mode, MetadataBuilderInterface $metadata)
{
$this->adapter = $adapter;
$this->mode = $mode;
$this->metadata = $metadata;
}
/**
* {@inheritdoc}
*/
public function resize(MediaInterface $media, File $in, File $out, $format, array $settings)
{
if (!isset($settings['width'])) {
throw new \RuntimeException(sprintf('Width parameter is missing in context "%s" for provider "%s"', $media->getContext(), $media->getProviderName()));
}
$image = $this->adapter->load($in->getContent());
$size = $media->getBox();
if (null != $settings['height']) {
$ratioWidth = $size->getWidth() / $settings['width'];
$ratioHeight = $size->getHeight() / $settings['height'];
$ratio = $ratioHeight > $ratioWidth ? $ratioWidth : $ratioHeight;
$point = new Point(($size->getWidth() - $settings['width'] * $ratio) / 2, ($size->getHeight() - $settings['height'] * $ratio) / 2);
$image->crop($point, new Box($settings['width'] * $ratio, $settings['height'] * $ratio));
$size = $image->getSize();
}
$settings['height'] = (int) ($settings['width'] * $size->getHeight() / $size->getWidth());
if ($settings['height'] < $size->getHeight() && $settings['width'] < $size->getWidth()) {
$content = $image
->thumbnail(new Box($settings['width'], $settings['height']), $this->mode)
->get($format, array('quality' => $settings['quality']));
} else {
$content = $image->get($format, array('quality' => $settings['quality']));
}
$out->setContent($content, $this->metadata->get($media, $out->getName()));
}
/**
* {@inheritdoc}
*/
public function getBox(MediaInterface $media, array $settings)
{
$size = $media->getBox();
if (null != $settings['height']) {
if ($size->getHeight() > $size->getWidth()) {
$higher = $size->getHeight();
$lower = $size->getWidth();
} else {
$higher = $size->getWidth();
$lower = $size->getHeight();
}
if ($higher - $lower > 0) {
return new Box($lower, $lower);
}
}
$settings['height'] = (int) ($settings['width'] * $size->getHeight() / $size->getWidth());
if ($settings['height'] < $size->getHeight() && $settings['width'] < $size->getWidth()) {
return new Box($settings['width'], $settings['height']);
}
return $size;
}
}
进行依赖注入有点挑战，但结果如下：
服务：
parameters:
<yourBundle>.generator.<project>_generator.class: Sita\<yourBundle>\Generator\<project>Generator
<yourBundle>.resizer.<project>_resizer.class: Sita\<yourBundle>\Resizer\<project>Resizer
<yourBundle>.thumbnail.<project>_thumbnail.class: Sita\<yourBundle>\Thumbnail\<project>Thumbnail
<yourBundle>.provider.<project>_provider.class: Sita\<yourBundle>\Provider\<project>Provider
services:
<yourBundle>.generator.<project>_generator:
class: %<yourBundle>.generator.<project>_generator.class%
arguments:
- ~
<yourBundle>.resizer.<project>_resizer:
class: %<yourBundle>.resizer.<project>_resizer.class%
arguments:
- @sonata.media.adapter.image.gd
- %sonata.media.resizer.square.adapter.mode%
- @sonata.media.metadata.proxy
<yourBundle>.thumbnail.<project>_thumbnail:
class: %<yourBundle>.thumbnail.<project>_thumbnail.class%
arguments:
- %sonata.media.thumbnail.format.default%
<yourBundle>.provider.<project>:
class: %<yourBundle>.provider.<project>_provider.class%
arguments:
- <yourBundle>.provider.<project>
- ~
- ~
- ~
- @<yourBundle>.thumbnail.<project>_thumbnail
- ~
- ~
- ~
- @sonata.media.metadata.proxy
calls:
- [setResizer, ["@<yourBundle>.resizer.<project>_resizer"]]
tags:
- { name: sonata.media.provider }
配置：
<?php
namespace <yourBundle>\DependencyInjection;
use Symfony\Component\Config\Definition\Builder\TreeBuilder;
use Symfony\Component\Config\Definition\ConfigurationInterface;
/**
* This is the class that validates and merges configuration from your app/config files
*
* To learn more see {@link http://symfony.com/doc/current/cookbook/bundles/extension.html#cookbook-bundles-extension-config-class}
*/
class Configuration implements ConfigurationInterface
{
/**
* {@inheritdoc}
*/
public function getConfigTreeBuilder()
{
$treeBuilder = new TreeBuilder();
$rootNode = $treeBuilder->root('<yourBundle>');
$rootNode
->children()
->arrayNode('providers')
->addDefaultsIfNotSet()
->children()
->arrayNode('<project>')
->addDefaultsIfNotSet()
->children()
->scalarNode('service')->defaultValue('<yourBundle>.provider.<project>')->end()
->scalarNode('resizer')->defaultValue('<yourBundle>.resizer.<project>_resizer')->end()
->scalarNode('filesystem')->defaultValue('sonata.media.filesystem.local')->end()
->scalarNode('cdn')->defaultValue('sonata.media.cdn.server')->end()
->scalarNode('generator')->defaultValue('<yourBundle>.generator.<project>_generator')->end()
->scalarNode('thumbnail')->defaultValue('<yourBundle>.thumbnail.<project>_thumbnail')->end()
->scalarNode('adapter')->defaultValue('sonata.media.adapter.image.gd')->end()
->arrayNode('allowed_extensions')
->prototype('scalar')->end()
->defaultValue(array('jpg', 'png', 'jpeg'))
->end()
->arrayNode('allowed_mime_types')
->prototype('scalar')->end()
->defaultValue(array(
'image/pjpeg',
'image/jpeg',
'image/png',
'image/x-png',
))
->end()
->end()
->end()
->end()
->end()
->end();
return $treeBuilder;
}
}
和扩展：
<?php
namespace <yourBundle>\DependencyInjection;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\Config\FileLocator;
use Symfony\Component\DependencyInjection\Reference;
use Symfony\Component\HttpKernel\DependencyInjection\Extension;
use Symfony\Component\DependencyInjection\Loader;
/**
* This is the class that loads and manages your bundle configuration
*
* To learn more see {@link http://symfony.com/doc/current/cookbook/bundles/extension.html}
*/
class <yourBundle>Extension extends Extension
{
/**
* {@inheritdoc}
*/
public function load(array $configs, ContainerBuilder $container)
{
$configuration = new Configuration();
$config = $this->processConfiguration($configuration, $configs);
$loader = new Loader\YamlFileLoader($container, new FileLocator(__DIR__.'/../Resources/config'));
$loader->load('services.yml');
$container->getDefinition('<yourBundle>.provider.<project>')
->replaceArgument(1, new Reference($config['providers']['<project>']['filesystem']))
->replaceArgument(2, new Reference($config['providers']['<project>']['cdn']))
->replaceArgument(3, new Reference($config['providers']['<project>']['generator']))
->replaceArgument(4, new Reference($config['providers']['<project>']['thumbnail']))
->replaceArgument(5, array_map('strtolower', $config['providers']['<project>']['allowed_extensions']))
->replaceArgument(6, $config['providers']['<project>']['allowed_mime_types'])
->replaceArgument(7, new Reference($config['providers']['<project>']['adapter']))
;
}
}
最后是 symfony 配置文件中的 config.yml：
sonata_media:
# if you don't use default namespace configuration
#class:
# media: MyVendor\MediaBundle\Entity\Media
# gallery: MyVendor\MediaBundle\Entity\Gallery
# gallery_has_media: MyVendor\MediaBundle\Entity\GalleryHasMedia
default_context: default
db_driver: doctrine_orm # or doctrine_mongodb, doctrine_phpcr
contexts:
default: # the default context is mandatory
providers:
- <yourBundle>.provider.<project>
formats:
small: { width: 100 , quality: 70}
big: { width: 500 , quality: 70}
100x100: { width: 100 , height: 100 , quality: 100 }
126x190: { width: 126 , height: 190 , quality: 100 }
190x126: { width: 190 , height: 126 , quality: 100 }
190x56: { width: 190 , height: 56 , quality: 100 }
cdn:
server:
path: /uploads/media # http://media.sonata-project.org/
filesystem:
local:
directory: %kernel.root_dir%/../web/uploads/media
create: true
<yourBundle>:
我知道这不是最清晰的工作，但它确实完成了工作，现在很好:)
//config.yml
sonata_media:
contexts:
default: # the default context is mandatory
providers:
- sonata.media.provider.image
formats:
small: { width: 100 , quality: 70}
big: { width: 500 , quality: 70}
//Controller action:
$media = //$entity->getMedia(); Media entity
$mediaProvider = $this->get('sonata.media.provider.image');
$format = $mediaProvider->getFormatName($media, 'big');
$imgPath = $mediaProvider->generatePublicUrl($media, $format);