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<?php |
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namespace Drupal\graphql; |
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use Drupal\Core\Language\LanguageManagerInterface; |
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/** |
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* Simple service that stores the current GraphQL language state. |
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*/ |
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class GraphQLLanguageContext { |
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/** |
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* Indicates if the GraphQL context language is currently active. |
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* |
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* @var bool |
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*/ |
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protected $isActive; |
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/** |
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* The current language context. |
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* |
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* @var string |
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*/ |
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protected $currentLanguage; |
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/** |
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* The language manager service. |
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* |
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* @var \Drupal\Core\Language\LanguageManagerInterface |
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*/ |
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protected $languageManager; |
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/** |
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* GraphQLLanguageContext constructor. |
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* |
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* @param \Drupal\Core\Language\LanguageManagerInterface $languageManager |
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* The language manager service. |
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*/ |
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public function __construct(LanguageManagerInterface $languageManager) { |
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$this->languageManager = $languageManager; |
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} |
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/** |
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* Set the current context language. |
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* |
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* @param string $langcode |
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* The language to be set. |
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*/ |
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protected function setCurrentLanguage($langcode) { |
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$this->currentLanguage = $langcode; |
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$this->isActive = TRUE; |
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$this->languageManager->reset(); |
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} |
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/** |
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* Retrieve the current language. |
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* |
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* @return string|null |
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* The current language code, or null if the context is not active. |
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*/ |
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public function getCurrentLanguage() { |
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return $this->isActive |
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? ($this->currentLanguage ?: $this->languageManager->getDefaultLanguage()->getId()) |
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: NULL; |
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} |
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/** |
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* Executes a callable in a defined language context. |
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* |
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* @param callable $callable |
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* The callable to be executed. |
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* @param string $language |
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* The langcode to be set. |
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* |
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* @return mixed |
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* The callables result. |
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* |
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* @throws \Exception |
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* Any exception caught while executing the callable. |
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*/ |
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public function executeInLanguageContext(callable $callable, $language) { |
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$this->setCurrentLanguage($language); |
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// Extract the result array. |
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try { |
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return $callable(); |
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} |
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catch (\Exception $exc) { |
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throw $exc; |
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} |
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finally { |
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// In any case, set the language context back to null. |
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$this->reset(); |
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} |
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} |
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/** |
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* Reset the context.. |
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*/ |
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public function reset() { |
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$this->currentLanguage = NULL; |
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$this->isActive = FALSE; |
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$this->languageManager->reset(); |
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} |
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} |
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drupal-graphql /
graphql
