public function StackedSessionHandlerPass::process in Drupal 8

Same name and namespace in other branches

1. 9 core/lib/Drupal/Core/DependencyInjection/Compiler/StackedSessionHandlerPass.php \Drupal\Core\DependencyInjection\Compiler\StackedSessionHandlerPass::process()

File

core/lib/Drupal/Core/DependencyInjection/Compiler/StackedSessionHandlerPass.php, line 17

Class

StackedSessionHandlerPass

Provides a compiler pass for stacked session save handlers.

Namespace

Drupal\Core\DependencyInjection\Compiler

Code

public function process(ContainerBuilder $container) {
  if ($container
    ->hasDefinition('session_handler')) {
    return;
  }
  $session_handler_proxies = [];
  $priorities = [];
  foreach ($container
    ->findTaggedServiceIds('session_handler_proxy') as $id => $attributes) {
    $priorities[$id] = isset($attributes[0]['priority']) ? $attributes[0]['priority'] : 0;
    $session_handler_proxies[$id] = $container
      ->getDefinition($id);
  }
  array_multisort($priorities, SORT_ASC, $session_handler_proxies);
  $decorated_id = 'session_handler.storage';
  foreach ($session_handler_proxies as $id => $decorator) {

    // Prepend the inner session handler as first constructor argument.
    $arguments = $decorator
      ->getArguments();
    array_unshift($arguments, new Reference($decorated_id));
    $decorator
      ->setArguments($arguments);
    $decorated_id = $id;
  }
  $container
    ->setAlias('session_handler', $decorated_id);
}