PathAliasCreate.php

<?php

namespace Drupal\rules\Plugin\RulesAction;

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

/**
 * Provides a 'Create any path alias' action.
 *
 * @todo Add access callback information from Drupal 7.
 *
 * @RulesAction(
 *   id = "rules_path_alias_create",
 *   label = @Translation("Create any path alias"),
 *   category = @Translation("Path"),
 *   provider = "path_alias",
 *   context_definitions = {
 *     "source" = @ContextDefinition("string",
 *       label = @Translation("Existing system path"),
 *       description = @Translation("Specifies the existing path you wish to alias. For example, '/node/28' or '/forum/1'.")
 *     ),
 *     "alias" = @ContextDefinition("string",
 *       label = @Translation("Path alias"),
 *       description = @Translation("Specify an alternative path by which this data can be accessed. For example, '/about' for an about page. Use an absolute path and do not add a trailing slash.")
 *     ),
 *     "language" = @ContextDefinition("language",
 *       label = @Translation("Language"),
 *       description = @Translation("If specified, the language for which the path alias applies."),
 *       options_provider = "\Drupal\rules\TypedData\Options\LanguageOptions",
 *       default_value = NULL,
 *       required = FALSE
 *     ),
 *   }
 * )
 */
class PathAliasCreate extends RulesActionBase implements ContainerFactoryPluginInterface {
    
    /**
     * The alias storage service.
     *
     * @var \Drupal\Core\Entity\EntityStorageInterface
     */
    protected $aliasStorage;
    
    /**
     * Constructs a PathAliasCreate 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;
    }
    
    /**
     * {@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 an alias for an existing path.
     *
     * @param string $source
     *   The existing path that should be aliased.
     * @param string $alias
     *   The alias path that should be created.
     * @param \Drupal\Core\Language\LanguageInterface $language
     *   (optional) The language.
     */
    protected function doExecute($source, $alias, LanguageInterface $language = NULL) {
        $langcode = isset($language) ? $language->getId() : LanguageInterface::LANGCODE_NOT_SPECIFIED;
        $path_alias = $this->aliasStorage
            ->create([
            'path' => $source,
            'alias' => $alias,
            'langcode' => $langcode,
        ]);
        $path_alias->save();
    }

}