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<?php
namespace Drupal\language\Config;
use Drupal\Core\Cache\CacheableMetadata;
use Drupal\Core\Config\ConfigCollectionInfo;
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use Drupal\Core\Config\ConfigCrudEvent;
use Drupal\Core\Config\ConfigFactoryOverrideBase;
use Drupal\Core\Config\ConfigRenameEvent;
use Drupal\Core\Config\StorageInterface;
use Drupal\Core\Config\TypedConfigManagerInterface;
use Drupal\Core\Language\LanguageDefault;
use Drupal\Core\Language\LanguageInterface;
use Symfony\Component\EventDispatcher\EventDispatcherInterface;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
/**
* Provides language overrides for the configuration factory.
*/
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class LanguageConfigFactoryOverride extends ConfigFactoryOverrideBase implements LanguageConfigFactoryOverrideInterface, EventSubscriberInterface {
use LanguageConfigCollectionNameTrait;
/**
* The configuration storage.
*
* Do not access this directly. Should be accessed through self::getStorage()
* so that the cache of storages per langcode is used.
*
* @var \Drupal\Core\Config\StorageInterface
*/
protected $baseStorage;
/**
* An array of configuration storages keyed by langcode.
*
* @var \Drupal\Core\Config\StorageInterface[]
*/
protected $storages;
/**
* The typed config manager.
*
* @var \Drupal\Core\Config\TypedConfigManagerInterface
*/
protected $typedConfigManager;
/**
* An event dispatcher instance to use for configuration events.
*
* @var \Symfony\Component\EventDispatcher\EventDispatcherInterface
*/
protected $eventDispatcher;
/**
* The language object used to override configuration data.
*
* @var \Drupal\Core\Language\LanguageInterface
*/
protected $language;
/**
* Constructs the LanguageConfigFactoryOverride object.
*
* @param \Drupal\Core\Config\StorageInterface $storage
* The configuration storage engine.
* @param \Symfony\Component\EventDispatcher\EventDispatcherInterface $event_dispatcher
* An event dispatcher instance to use for configuration events.
* @param \Drupal\Core\Config\TypedConfigManagerInterface $typed_config
* The typed configuration manager.
* @param \Drupal\Core\Language\LanguageDefault $default_language
* The default language.
public function __construct(StorageInterface $storage, EventDispatcherInterface $event_dispatcher, TypedConfigManagerInterface $typed_config, LanguageDefault $default_language) {
$this->baseStorage = $storage;
$this->eventDispatcher = $event_dispatcher;
$this->typedConfigManager = $typed_config;
// Prior to negiotiation the override language should be the default
// language.
$this->language = $default_language->get();
}
/**
* {@inheritdoc}
*/
public function loadOverrides($names) {
if ($this->language) {
$storage = $this->getStorage($this->language->getId());
return $storage->readMultiple($names);
return [];
}
/**
* {@inheritdoc}
*/
public function getOverride($langcode, $name) {
$storage = $this->getStorage($langcode);
$data = $storage->read($name);
$override = new LanguageConfigOverride(
$name,
$storage,
$this->typedConfigManager,
$this->eventDispatcher
);
if (!empty($data)) {
$override->initWithData($data);
return $override;
}
/**
* {@inheritdoc}
public function getStorage($langcode) {
if (!isset($this->storages[$langcode])) {
$this->storages[$langcode] = $this->baseStorage->createCollection($this->createConfigCollectionName($langcode));
return $this->storages[$langcode];
}
/**
* {@inheritdoc}
*/
public function getCacheSuffix() {
return $this->language ? $this->language->getId() : NULL;
}
/**
* {@inheritdoc}
*/
public function getLanguage() {
return $this->language;
}
/**
* {@inheritdoc}
*/
public function setLanguage(LanguageInterface $language = NULL) {
$this->language = $language;
return $this;
}
/**
* {@inheritdoc}
*/
public function setLanguageFromDefault(LanguageDefault $language_default = NULL) {
$this->language = $language_default ? $language_default->get() : NULL;
return $this;
}
/**
* {@inheritdoc}
*/
public function installLanguageOverrides($langcode) {
/** @var \Drupal\Core\Config\ConfigInstallerInterface $config_installer */
$config_installer = \Drupal::service('config.installer');
$config_installer->installCollectionDefaultConfig($this->createConfigCollectionName($langcode));
}
/**
* {@inheritdoc}
*/
public function createConfigObject($name, $collection = StorageInterface::DEFAULT_COLLECTION) {
$langcode = $this->getLangcodeFromCollectionName($collection);
return $this->getOverride($langcode, $name);
}
/**
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* {@inheritdoc}
*/
public function addCollections(ConfigCollectionInfo $collection_info) {
foreach (\Drupal::languageManager()->getLanguages() as $language) {
$collection_info->addCollection($this->createConfigCollectionName($language->getId()), $this);
}
}
/**
* {@inheritdoc}
*/
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public function onConfigSave(ConfigCrudEvent $event) {
$config = $event->getConfig();
$name = $config->getName();
foreach (\Drupal::languageManager()->getLanguages() as $language) {
$config_translation = $this->getOverride($language->getId(), $name);
if (!$config_translation->isNew()) {
$this->filterOverride($config, $config_translation);
}
}
}
/**
* {@inheritdoc}
*/
public function onConfigRename(ConfigRenameEvent $event) {
$config = $event->getConfig();
$name = $config->getName();
$old_name = $event->getOldName();
foreach (\Drupal::languageManager()->getLanguages() as $language) {
$config_translation = $this->getOverride($language->getId(), $old_name);
if (!$config_translation->isNew()) {
$saved_config = $config_translation->get();
$storage = $this->getStorage($language->getId());
$storage->write($name, $saved_config);
$config_translation->delete();
}
}
}
/**
* {@inheritdoc}
*/
public function onConfigDelete(ConfigCrudEvent $event) {
$config = $event->getConfig();
$name = $config->getName();
foreach (\Drupal::languageManager()->getLanguages() as $language) {
$config_translation = $this->getOverride($language->getId(), $name);
if (!$config_translation->isNew()) {
$config_translation->delete();
}
}
/**
* {@inheritdoc}
*/
public function getCacheableMetadata($name) {
$metadata = new CacheableMetadata();
if ($this->language) {
$metadata->setCacheContexts(['languages:language_interface']);
}
return $metadata;
}