ContentImporter.php in Commerce Demo 8.2

Namespace

Drupal\commerce_demo

File

src/ContentImporter.php

<?php

namespace Drupal\commerce_demo;

use Drupal\Core\Entity\ContentEntityInterface;
use Drupal\Core\Entity\EntityTypeManagerInterface;
use Drupal\Core\Serialization\Yaml;
use Drupal\taxonomy\TermInterface;
use Drupal\Core\Entity\EntityInterface;
use Drupal\Core\File\FileSystemInterface;

/**
 * Defines the content importer.
 *
 * @internal
 *   For internal usage by the Commerce Demo module.
 */
class ContentImporter {

  /**
   * The entity type manager.
   *
   * @var \Drupal\Core\Entity\EntityTypeManagerInterface
   */
  protected $entityTypeManager;

  /**
   * The full path to the content directory.
   *
   * @var string
   */
  protected $contentPath;

  /**
   * The current store.
   *
   * @var \Drupal\commerce_store\Entity\StoreInterface
   */
  protected $store;

  /**
   * Constructs a new ContentImporter object.
   *
   * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entityTypeManager
   *   The entity type manager.
   */
  public function __construct(EntityTypeManagerInterface $entityTypeManager) {
    $this->entityTypeManager = $entityTypeManager;
    $this->contentPath = dirname(__DIR__) . '/content';
  }

  /**
   * Reacts on the module being installed, imports all content.
   */
  public function onInstall() {

    // It is necessary to hardcode the available entity types/bundles to ensure
    // the right import order, because there is no dependency tracking.
    $available_content = [
      [
        'taxonomy_term',
        'brands',
      ],
      [
        'taxonomy_term',
        'product_categories',
      ],
      [
        'taxonomy_term',
        'special_categories',
      ],
      [
        'commerce_store',
        'online',
      ],
      [
        'commerce_product_attribute_value',
        'color',
      ],
      [
        'commerce_product_attribute_value',
        'size',
      ],
      [
        'commerce_product',
        'clothing',
      ],
      [
        'commerce_product',
        'simple',
      ],
      [
        'commerce_shipping_method',
        '',
      ],
      [
        'commerce_promotion',
        '',
      ],
      [
        'commerce_pricelist',
        'commerce_product_variation',
      ],
      [
        'commerce_pricelist_item',
        'commerce_product_variation',
      ],
    ];
    foreach ($available_content as $keys) {
      $this
        ->importAll($keys[0], $keys[1]);
    }
  }

  /**
   * Imports all content for the given entity type and bundle.
   *
   * @param string $entity_type_id
   *   The entity type ID.
   * @param string $bundle
   *   The bundle.
   */
  public function importAll($entity_type_id, $bundle = '') {
    $filepath = $this
      ->buildFilepath($entity_type_id, $bundle);
    if (!is_readable($filepath)) {
      throw new \InvalidArgumentException(sprintf('The %s file could not be found/read.', $filepath));
    }
    $data = Yaml::decode(file_get_contents($filepath));
    foreach ($data as $uuid => $values) {
      $values['uuid'] = $uuid;
      $this
        ->importEntity($entity_type_id, $values);
    }
  }

  /**
   * Imports a given entity.
   *
   * If an entity with the given UUID already exists, it will be updated.
   *
   * @param string $entity_type_id
   *   The entity type ID.
   * @param array $values
   *   The entity values.
   *
   * @return \Drupal\Core\Entity\EntityInterface
   *   The created or updated entity.
   */
  public function importEntity($entity_type_id, array $values) {
    $entity_type = $this->entityTypeManager
      ->getDefinition($entity_type_id);
    $wanted_keys = [
      'bundle',
      'langcode',
      'uuid',
    ];
    $wanted_keys = array_combine($wanted_keys, $wanted_keys);
    $entity_keys = array_intersect_key($entity_type
      ->getKeys(), $wanted_keys);
    $storage = $this->entityTypeManager
      ->getStorage($entity_type_id);

    /** @var \Drupal\Core\Entity\ContentEntityInterface $entity */
    $entity = $this
      ->loadEntityByUuid($entity_type_id, $values['uuid']);
    if (!$entity) {

      // No existing entity found, create a new one.
      $initial_values = array_intersect_key($values, array_flip($entity_keys));
      $entity = $storage
        ->create($initial_values);
    }
    assert($entity instanceof ContentEntityInterface);

    // Process values.
    $values = array_diff_key($values, array_flip($entity_keys));
    foreach ($entity
      ->getFieldDefinitions() as $field_name => $definition) {
      if (!isset($values[$field_name])) {
        continue;
      }
      $storage_definition = $definition
        ->getFieldStorageDefinition();
      $items = $values[$field_name];

      // Re-add the wrapper array stripped by ContentExporter.
      if ($storage_definition
        ->getCardinality() === 1) {
        $items = [
          $items,
        ];
      }
      foreach ($items as $delta => $item) {
        if ($definition
          ->getType() == 'entity_reference' && is_string($item)) {
          $target_entity_type_id = $storage_definition
            ->getSetting('target_type');
          $target_entity_type = $this->entityTypeManager
            ->getDefinition($target_entity_type_id);
          if ($target_entity_type
            ->entityClassImplements(ContentEntityInterface::class)) {
            $target_entity = $this
              ->loadEntityByUuid($target_entity_type_id, $item);
            if ($target_entity) {
              $items[$delta] = $target_entity
                ->id();
            }
            else {
              unset($items[$delta]);
            }
          }
        }
        elseif ($definition
          ->getType() == 'image') {
          $file = $this
            ->ensureFile($item['filename']);
          $items[$delta] = [
            'target_id' => $file
              ->id(),
          ] + $item;
        }
        $values[$field_name] = $items;
      }
    }

    // Perform generic processing.
    if (substr($entity_type_id, 0, 9) == 'commerce_') {
      $values = $this
        ->processCommerce($values, $entity);
    }

    // Process by entity type ID.
    if ($entity_type_id == 'commerce_product') {
      $values = $this
        ->processReferences($values, $entity, 'variations');
    }
    elseif ($entity_type_id == 'commerce_promotion') {
      $values = $this
        ->processReferences($values, $entity, 'coupons');
    }
    elseif ($entity_type_id == 'taxonomy_term') {
      $values = $this
        ->processTerm($values, $entity);
    }
    foreach ($values as $field_name => $items) {
      $entity
        ->set($field_name, $items);
    }
    $entity
      ->save();
    return $entity;
  }

  /**
   * Processes Commerce entity values before importing.
   *
   * @param array $values
   *   The entity values.
   * @param \Drupal\Core\Entity\ContentEntityInterface $entity
   *   The Commerce entity.
   *
   * @return array
   *   The processed entity values.
   */
  protected function processCommerce(array $values, ContentEntityInterface $entity) {
    return $values;
  }

  /**
   * Processes reference values before importing.
   *
   * @param array $values
   *   The entity values.
   * @param \Drupal\Core\Entity\EntityInterface $entity
   *   The entity.
   * @param string $field_name
   *   The name of the field containing the references. Currently supports
   *   'variations' and 'coupons'.
   *
   * @return array
   *   The processed product values.
   */
  protected function processReferences(array $values, EntityInterface $entity, $field_name) {
    $ids = [];
    foreach ($values[$field_name] as $uuid => $entity_values) {
      $entity_values['uuid'] = $uuid;
      if ($field_name == 'variations') {
        $entity_type_id = 'commerce_product_variation';
      }
      elseif ($field_name == 'coupons') {
        $entity_type_id = 'commerce_promotion_coupon';
      }
      else {
        return $values;
      }
      $imported_entity = $this
        ->importEntity($entity_type_id, $entity_values);
      $ids[] = $imported_entity
        ->id();
    }
    $values[$field_name] = $ids;
    return $values;
  }

  /**
   * Processes taxonomy term values before importing.
   *
   * @param array $values
   *   The taxonomy term values.
   * @param \Drupal\taxonomy\TermInterface $term
   *   The taxonomy term.
   *
   * @return array
   *   The processed taxonomy term values.
   */
  protected function processTerm(array $values, TermInterface $term) {
    if (!isset($values['parent'])) {
      $values['parent'] = [
        0,
      ];
    }
    return $values;
  }

  /**
   * Loads an entity by UUID.
   *
   * @param string $entity_type_id
   *   The entity type ID.
   * @param int $entity_uuid
   *   The entity UUID.
   *
   * @return \Drupal\Core\Entity\EntityInterface|null
   *   The loaded entity, or NULL if none found.
   */
  protected function loadEntityByUuid($entity_type_id, $entity_uuid) {
    $storage = $this->entityTypeManager
      ->getStorage($entity_type_id);
    $entities = $storage
      ->loadByProperties([
      'uuid' => $entity_uuid,
    ]);
    return $entities ? reset($entities) : NULL;
  }

  /**
   * Builds the filepath for the given entity type's export file.
   *
   * @param string $entity_type_id
   *   The entity type ID.
   * @param string $bundle
   *   The bundle.
   *
   * @return string
   *   The filepath.
   */
  protected function buildFilepath($entity_type_id, $bundle = '') {
    $filepath = $this->contentPath . '/' . $entity_type_id;
    if ($bundle) {
      $filepath .= '.' . $bundle;
    }
    $filepath .= '.yml';
    return $filepath;
  }

  /**
   * Ensures the existence of a file.
   *
   * @param string $filename
   *   The filename. Assumed to exist in the content/files module subdirectory.
   *
   * @return \Drupal\file\FileInterface
   *   The file.
   */
  protected function ensureFile($filename) {
    $file_storage = $this->entityTypeManager
      ->getStorage('file');
    $files = $file_storage
      ->loadByProperties([
      'filename' => $filename,
    ]);
    $file = reset($files);
    if (!$file) {
      $path = $this->contentPath . '/files/' . $filename;
      $uri = \Drupal::service('file_system')
        ->copy($path, 'public://' . $filename, FileSystemInterface::EXISTS_REPLACE);
      $file = $file_storage
        ->create([
        'filename' => $filename,
        'uri' => $uri,
        'status' => 1,
      ]);
      $file
        ->save();
    }
    return $file;
  }

}

Classes

Name	Description
ContentImporter	Defines the content importer.