public function DependencySerializationTrait::__sleep in Service Container 7

Same name and namespace in other branches

1. 7.2 lib/Drupal/Core/DependencyInjection/DependencySerializationTrait.php \Drupal\Core\DependencyInjection\DependencySerializationTrait::__sleep()

File

lib/Drupal/Core/DependencyInjection/DependencySerializationTrait.php, line 27

Contains \Drupal\Core\DependencyInjection\DependencySerializationTrait.

Class

DependencySerializationTrait

Provides dependency injection friendly methods for serialization.

Namespace

Drupal\Core\DependencyInjection

Code

public function __sleep() {
  $this->_serviceIds = array();
  $vars = get_object_vars($this);
  foreach ($vars as $key => $value) {
    if (is_object($value) && isset($value->_serviceId)) {

      // If a class member was instantiated by the dependency injection
      // container, only store its ID so it can be used to get a fresh object
      // on unserialization.
      $this->_serviceIds[$key] = $value->_serviceId;
      unset($vars[$key]);
    }
    elseif ($value instanceof ContainerInterface) {
      $this->_serviceIds[$key] = 'service_container';
      unset($vars[$key]);
    }
  }
  return array_keys($vars);
}