EntityPathAliasCreate.php

<?php

namespace Drupal\rules\Plugin\RulesAction;

use Drupal\Core\Entity\EntityStorageInterface;
use Drupal\Core\Entity\EntityInterface;
use Drupal\rules\Core\RulesActionBase;
use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;

/**
 * Provides a generic 'Create entity path alias' action.
 *
 * @todo Add access callback information from Drupal 7.
 *
 * @RulesAction(
 *   id = "rules_entity_path_alias_create",
 *   deriver = "Drupal\rules\Plugin\RulesAction\EntityPathAliasCreateDeriver"
 * )
 */
class EntityPathAliasCreate extends RulesActionBase implements ContainerFactoryPluginInterface {
    
    /**
     * The alias storage service.
     *
     * @var \Drupal\Core\Entity\EntityStorageInterface
     */
    protected $aliasStorage;
    
    /**
     * The entity type id.
     *
     * @var string
     */
    protected $entityTypeId;
    
    /**
     * Constructs an EntityPathAliasCreate object.
     *
     * @param array $configuration
     *   A configuration array containing information about the plugin instance.
     * @param string $plugin_id
     *   The plugin ID for the plugin instance.
     * @param mixed $plugin_definition
     *   The plugin implementation definition.
     * @param \Drupal\Core\Entity\EntityStorageInterface $alias_storage
     *   The alias storage service.
     */
    public function __construct(array $configuration, $plugin_id, $plugin_definition, EntityStorageInterface $alias_storage) {
        parent::__construct($configuration, $plugin_id, $plugin_definition);
        $this->aliasStorage = $alias_storage;
        $this->entityTypeId = $plugin_definition['entity_type_id'];
    }
    
    /**
     * {@inheritdoc}
     */
    public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
        return new static($configuration, $plugin_id, $plugin_definition, $container->get('entity_type.manager')
            ->getStorage('path_alias'));
    }
    
    /**
     * Creates entity path alias.
     *
     * @param \Drupal\Core\Entity\EntityInterface $entity
     *   The entity that should get an alias.
     * @param string $alias
     *   The alias to be created.
     */
    protected function doExecute(EntityInterface $entity, $alias) {
        // We need to save the entity before we can get its internal path.
        if ($entity->isNew()) {
            $entity->save();
        }
        $path = '/' . $entity->toUrl()
            ->getInternalPath();
        $langcode = $entity->language()
            ->getId();
        $path_alias = $this->aliasStorage
            ->create([
            'path' => $path,
            'alias' => $alias,
            'langcode' => $langcode,
        ]);
        $path_alias->save();
    }

}