bridtv-8.x-1.x-dev/src/BridPlaylistEntityResolver.php

<?php

namespace Drupal\bridtv;

use Drupal\Core\Cache\MemoryCache\MemoryCacheInterface;
use Drupal\Core\Entity\EntityTypeManagerInterface;
use Drupal\Core\Entity\FieldableEntityInterface;

/**
 * The Brid Playlist Entity Resolver.
 */
class BridPlaylistEntityResolver extends BridEntityResolver {

  const BUNDLE = 'brid_tv_playlist';

  const FIELD = 'field_media_bridtv_playlist';

  /**
   * BridEntityResolver constructor.
   *
   * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager
   *   The entity type manager.
   * @param \Drupal\Core\Cache\MemoryCache\MemoryCacheInterface $entity_memory_cache
   *   The entity memory cache.
   */
  public function __construct(EntityTypeManagerInterface $entity_type_manager, MemoryCacheInterface $entity_memory_cache) {
    parent::__construct($entity_type_manager, $entity_memory_cache);
    $this->type = 'playlist';
    $this->cached = [$this->type => []];
  }

  /**
   * Get the representing entity for the given playlist id.
   *
   * @param int $id
   *   The Brid.TV playlist id.
   *
   * @return \Drupal\Core\Entity\FieldableEntityInterface|null
   *   The entity if existent, or NULL if not existent.
   */
  public function getEntityForPlaylistId($id) {
    $storage = $this->getEntityStorage();
    if (!isset($this->cached['playlist'][$id])) {
      $this->usingInternalCache();
      $query = $storage->getQuery();
      $query->condition(static::FIELD . '.playlist_id', $id, '=');
      $query->range(0, 1);
      $query->accessCheck(TRUE);
      if ($result = $query->execute()) {
        $this->cached['playlist'][$id] = reset($result);
      }
    }
    return isset($this->cached['playlist'][$id]) ? $storage->load($this->cached['playlist'][$id]) : NULL;
  }

  /**
   * The using Internal Cache function.
   */
  protected function usingInternalCache() {
    $this->cacheResetCounter++;
    if ($this->cacheResetCounter > 100) {
      $this->cacheResetCounter = 0;
      $this->cached = ['playlist' => []];
      $this->getEntityStorage()->resetCache();
      $this->entityMemoryCache->deleteAll();
    }
  }

  /**
   * Gets a field item list.
   *
   * @param \Drupal\Core\Entity\FieldableEntityInterface $entity
   *   The entity.
   *
   * @return \Drupal\Core\Field\FieldItemListInterface|null
   *   Returns FieldItemListInterface|null.
   */
  public function getFieldItemList(FieldableEntityInterface $entity) {
    foreach ($entity->getFieldDefinitions() as $definition) {
      if ($definition->getType() === 'bridtv_playlist') {
        $field = $definition->getName();
        return $entity->get($field);
      }
    }
    return NULL;
  }

}