根据this symfony documentation article，应该可以加载您自己的翻译格式。所以我试图从数据库加载它们。
但无论我试图让这项工作。它只是没有。
使用数据库加载器是正确的方法还是我应该做些什么来从数据库加载翻译？
应用程序\翻译\装载机\ DatabaseLoader.php：
namespace App\Translation\Loader;
use App\Entity\Translation;
use App\Domain\TranslationManagerInterface;
use Symfony\Component\Translation\Loader\LoaderInterface;
use Symfony\Component\Translation\MessageCatalogue;
/**
* Database Loader
*/
class DatabaseLoader implements LoaderInterface
{
/**
* Translation Manager
*
* @var TranslationManagerInterface
*/
private $_translationManager;
/**
* Constructor
*
* @param TranslationManagerInterface $translationManager
*/
public function __construct(TranslationManagerInterface $translationManager)
{
$this->_translationManager = $translationManager;
}
/**
* {@inheritDoc}
*/
public function load($resource, $locale, $domain = 'general')
{
$translations = $this->_translationManager->findByLocaleAndDomain($locale, $domain);
$catalogue = new MessageCatalogue($locale);
/* @var Translation $translation */
foreach($translations as $translation)
{
$catalogue->set(
$translation->getToken(),
$translation->getContent(),
$translation->getDomain()()
);
}
}
}
配置/ services.yaml：
# database loader
translation.loader.database:
class: 'App\Translation\Loader\DatabaseLoader'
arguments: [ 'App\Domain\TranslationManager' ]
tags:
- { name: translation.loader, alias: database, priority: 100 }
我甚至尝试使用内核请求上的事件监听器手动将加载器添加到转换器。我不想使用完整的捆绑包，因为我已经是一个充满翻译的数据库
使用Symfony 4.2.4进行测试：也许这个答案有点晚了，但是我想帮助其他有同样问题的访客，他们和我一样绝望。
public function load($resource, $locale, $domain = 'general')
{
$translations = $this->_translationManager->findByLocaleAndDomain($locale, $domain);
$catalogue = new MessageCatalogue($locale);
/* @var Translation $translation */
foreach($translations as $translation)
{
$catalogue->set(
$translation->getToken(),
$translation->getContent(),
$translation->getDomain()()
);
}
// you must return $catalogue here
return $catalogue;
}
我扩展了Translator类，以避免为应用程序中的每个域创建一个虚拟翻译文件。
要覆盖标准转换程序组件，需要加载Compiler Pass。
译者编译通行证：
namespace App\DependencyInjection\Compiler;
use App\Domain\TranslationManagerInterface;
use App\Translation\Translator;
use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\Reference;
class TranslatorCompilerPass implements CompilerPassInterface
{
private $translatorServiceId;
private $readerServiceId;
private $loaderTag;
private $debugCommandServiceId;
private $updateCommandServiceId;
/**
* @param string $translatorServiceId
* @param string $readerServiceId
* @param string $loaderTag
* @param string $debugCommandServiceId
* @param string $updateCommandServiceId
*/
public function __construct(
string $translatorServiceId = 'translator.default',
string $readerServiceId = 'translation.reader',
string $loaderTag = 'translation.loader',
string $debugCommandServiceId = 'console.command.translation_debug',
string $updateCommandServiceId = 'console.command.translation_update'
) {
$this->translatorServiceId = $translatorServiceId;
$this->readerServiceId = $readerServiceId;
$this->loaderTag = $loaderTag;
$this->debugCommandServiceId = $debugCommandServiceId;
$this->updateCommandServiceId = $updateCommandServiceId;
}
/**
* {@inheritdoc}
*/
public function process(ContainerBuilder $container)
{
$loaders = [];
$loaderRefs = [];
foreach ($container->findTaggedServiceIds($this->loaderTag, true) as $id => $attributes) {
$loaderRefs[$id] = new Reference($id);
$loaders[$id][] = $attributes[0]['alias'];
if (isset($attributes[0]['legacy-alias'])) {
$loaders[$id][] = $attributes[0]['legacy-alias'];
}
}
if ($container->hasDefinition($this->readerServiceId)) {
$definition = $container->getDefinition($this->readerServiceId);
foreach ($loaders as $id => $formats) {
foreach ($formats as $format) {
$definition->addMethodCall('addLoader', [$format, $loaderRefs[$id]]);
}
}
}
$definition = $container->findDefinition($this->translatorServiceId);
$definition
->setClass(Translator::class)
->replaceArgument(0, null)
->replaceArgument(1, $definition->getArgument(1))
->replaceArgument(2, $definition->getArgument(4)["cache_dir"])
->replaceArgument(3, $definition->getArgument(4)["debug"])
->replaceArgument(4, $definition->getArgument(4)["resource_files"])
->addMethodCall("setTranslationManager", [new Reference(TranslationManagerInterface::class)])
;
if (!$container->hasParameter('twig.default_path')) {
return;
}
if ($container->hasDefinition($this->debugCommandServiceId)) {
$container->getDefinition($this->debugCommandServiceId)->replaceArgument(4, $container->getParameter('twig.default_path'));
}
if ($container->hasDefinition($this->updateCommandServiceId)) {
$container->getDefinition($this->updateCommandServiceId)->replaceArgument(5, $container->getParameter('twig.default_path'));
}
}
}
译者班：
namespace App\Translation;
use App\Domain\TranslationManagerInterface;
use App\Entity\Model\Translation\Translation;
use Symfony\Component\Translation\Translator as SymfonyTranslator;
class Translator extends SymfonyTranslator
{
/**
* @var TranslationManagerInterface
*/
private $_translationManager;
/**
* @param TranslationManagerInterface $translationManager
*/
public function setTranslationManager(TranslationManagerInterface $translationManager)
{
$this->_translationManager = $translationManager;
}
/**
* {@inheritdoc}
*/
public function trans($id, array $parameters = [], $domain = null, $locale = null)
{
if (null === $locale && null !== $this->getLocale()) {
$locale = $this->getLocale();
}
if (null === $locale) {
$locale = $this->getFallbackLocales()[0]; // fallback locale
}
// the translation manager automagically creates new translation entries if it doesn't exist yet
$translation = $this->_translationManager->findOneByTokenLocaleAndDomain($id, $locale, $domain);
// check if it exists
if (isset($translation) && null !== $translation && $translation instanceof Translation) {
return strtr($translation->getContent(), $parameters);
}
// fallback
return parent::trans($id, $parameters, $domain, $locale);
}
}