EntityPathAliasCollector.php in Dependency Calculation 8

Namespace

Drupal\depcalc\EventSubscriber\DependencyCollector

File

src/EventSubscriber/DependencyCollector/EntityPathAliasCollector.php

<?php

namespace Drupal\depcalc\EventSubscriber\DependencyCollector;

use Drupal\Core\Entity\EntityMalformedException;
use Drupal\Core\Entity\Exception\UndefinedLinkTemplateException;
use Drupal\depcalc\DependencyCalculatorEvents;
use Drupal\depcalc\DependentEntityWrapper;
use Drupal\depcalc\Event\CalculateEntityDependenciesEvent;
class EntityPathAliasCollector extends BaseDependencyCollector {
  public static function getSubscribedEvents() {
    $events = [];
    $events[DependencyCalculatorEvents::CALCULATE_DEPENDENCIES][] = [
      'onCalculateDependencies',
    ];
    return $events;
  }
  public function onCalculateDependencies(CalculateEntityDependenciesEvent $event) {

    // @todo remove version condition once 8.7 is no longer supported.
    if ($event
      ->getEntity()
      ->getEntityTypeId() !== 'path_alias' && version_compare(\Drupal::VERSION, '8.8.0', '>=') && \Drupal::moduleHandler()
      ->moduleExists('path_alias')) {
      $entity = $event
        ->getEntity();
      try {
        $uri = "/{$entity->toUrl()->getInternalPath()}";

        /** @var \Drupal\path_alias\PathAliasStorage $storage */
        $storage = \Drupal::entityTypeManager()
          ->getStorage('path_alias');
        $paths = $storage
          ->loadByProperties([
          'path' => $uri,
        ]);
        if ($paths) {
          foreach ($paths as $path) {
            $path_wrapper = new DependentEntityWrapper($path);
            $path_wrapper
              ->addDependency($event
              ->getWrapper(), $event
              ->getStack());
            $local_dependencies = [];
            $this
              ->mergeDependencies($path_wrapper, $event
              ->getStack(), $this
              ->getCalculator()
              ->calculateDependencies($path_wrapper, $event
              ->getStack(), $local_dependencies));
            $event
              ->addDependency($path_wrapper);
          }
        }
      } catch (EntityMalformedException|UndefinedLinkTemplateException $e) {
        return;
      }
    }
  }

}

Classes

Name	Description
EntityPathAliasCollector