class ConfigSubscriber in Drupal 8

Config subscriber.

Hierarchy

• class \Drupal\Core\Config\ConfigImportValidateEventSubscriberBase implements \Symfony\Component\EventDispatcher\EventSubscriberInterface uses StringTranslationTrait
  • class \Drupal\config\ConfigSubscriber

1 string reference to 'ConfigSubscriber'

config.services.yml in core/modules/config/config.services.yml

core/modules/config/config.services.yml

1 service uses ConfigSubscriber

config.config_subscriber in core/modules/config/config.services.yml

Drupal\config\ConfigSubscriber

File

core/modules/config/src/ConfigSubscriber.php, line 12

Namespace

Drupal\config

class ConfigSubscriber extends ConfigImportValidateEventSubscriberBase {

  /**
   * Checks that the Configuration module is not being uninstalled.
   *
   * @param \Drupal\Core\Config\ConfigImporterEvent $event
   *   The config import event.
   */
  public function onConfigImporterValidate(ConfigImporterEvent $event) {

    // Make sure config syncs performed via the Config UI don't break, but
    // don't worry about syncs initiated via the command line.
    if (PHP_SAPI === 'cli') {
      return;
    }
    $importer = $event
      ->getConfigImporter();
    $core_extension = $importer
      ->getStorageComparer()
      ->getSourceStorage()
      ->read('core.extension');
    if (!isset($core_extension['module']['config'])) {
      $importer
        ->logError($this
        ->t('Can not uninstall the Configuration module as part of a configuration synchronization through the user interface.'));
    }
  }

  /**
   * {@inheritdoc}
   */
  public static function getSubscribedEvents() {
    $events[ConfigEvents::IMPORT_VALIDATE][] = [
      'onConfigImporterValidate',
      20,
    ];
    return $events;
  }

}

Members

Name	Modifiers	Type	Description	Overrides
ConfigSubscriber::getSubscribedEvents	public static	function	Returns an array of event names this subscriber wants to listen to. Overrides ConfigImportValidateEventSubscriberBase::getSubscribedEvents
ConfigSubscriber::onConfigImporterValidate	public	function	Checks that the Configuration module is not being uninstalled. Overrides ConfigImportValidateEventSubscriberBase::onConfigImporterValidate
StringTranslationTrait::$stringTranslation	protected	property	The string translation service.	1
StringTranslationTrait::formatPlural	protected	function	Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals	protected	function	Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation	protected	function	Gets the string translation service.
StringTranslationTrait::setStringTranslation	public	function	Sets the string translation service to use.	2
StringTranslationTrait::t	protected	function	Translates a string to the current language or to a given language.