RngEntityModel.php in RNG - Events and Registrations 8.2

Namespace

Drupal\rng

File

src/RngEntityModel.php

<?php

namespace Drupal\rng;

use Drupal\Core\Entity\EntityInterface;
use Drupal\Core\Entity\EntityTypeManagerInterface;
use Drupal\rng\Entity\Registrant;
use Drupal\rng\Entity\RegistrationInterface;
use Drupal\rng\Entity\RuleComponentInterface;
use Drupal\rng\Entity\RuleInterface;
use Drupal\rng\Plugin\Action\CourierTemplateCollection;
use Drupal\courier\Service\IdentityChannelManagerInterface;

/**
 * Enforces RNG model relationships.
 */
class RngEntityModel implements RngEntityModelInterface {

  /**
   * Storage for registration entities.
   *
   * @var \Drupal\Core\Entity\EntityStorageInterface
   */
  protected $registrationStorage;

  /**
   * Storage for registrant entities.
   *
   * @var \Drupal\Core\Entity\EntityStorageInterface
   */
  protected $registrantStorage;

  /**
   * Storage for registration group entities.
   *
   * @var \Drupal\Core\Entity\EntityStorageInterface
   */
  protected $registrationGroupStorage;

  /**
   * Storage for RNG rule entities.
   *
   * @var \Drupal\Core\Entity\EntityStorageInterface
   */
  protected $ruleStorage;

  /**
   * The RNG event manager.
   *
   * @var \Drupal\rng\EventManagerInterface
   */
  protected $eventManager;

  /**
   * The identity channel manager.
   *
   * @var \Drupal\courier\Service\IdentityChannelManagerInterface
   */
  protected $identityChannelManager;

  /**
   * Record operations for relevant RNG entities.
   *
   * These operations are acted on during request termination.
   *
   * @var \Drupal\rng\RngOperationRecord[]
   */
  protected $operationRecords = [];

  /**
   * Constructs a new RngEntityModel object.
   *
   * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager
   *   The entity type manager.
   * @param \Drupal\rng\EventManagerInterface $event_manager
   *   The RNG event manager.
   * @param \Drupal\courier\Service\IdentityChannelManagerInterface $identity_channel_manager
   *   The identity channel manager.
   */
  public function __construct(EntityTypeManagerInterface $entity_type_manager, EventManagerInterface $event_manager, IdentityChannelManagerInterface $identity_channel_manager) {
    $this->registrationStorage = $entity_type_manager
      ->getStorage('registration');
    $this->registrantStorage = $entity_type_manager
      ->getStorage('registrant');
    $this->registrationGroupStorage = $entity_type_manager
      ->getStorage('registration_group');
    $this->ruleStorage = $entity_type_manager
      ->getStorage('rng_rule');
    $this->eventManager = $event_manager;
    $this->identityChannelManager = $identity_channel_manager;
  }

  /**
   * React to Drupal `hook_entity_insert` or `hook_entity_update` hooks.
   *
   * @param \Drupal\Core\Entity\EntityInterface $entity
   *   The entity object for the entity that is already saved.
   * @param bool $update
   *   Whether this entity is new.
   *
   * @see _rng_entity_postsave();
   */
  public function hook_entity_postsave(EntityInterface $entity, $update = TRUE) {
    if ($entity instanceof RuleInterface) {
      $this
        ->postSaveRngRule($entity);
    }
    if ($entity instanceof RegistrationInterface) {
      $operation_record = new RngOperationRecord();
      $operation = $update ? 'update' : 'insert';
      $operation_record
        ->setOperation($operation)
        ->setEntityTypeId($entity
        ->getEntityTypeId())
        ->setEntityId($entity
        ->id());
      $this->operationRecords[] = $operation_record;
    }
    if ($this->eventManager
      ->isEvent($entity) && $update == FALSE) {
      $event = $this->eventManager
        ->getMeta($entity);
      $event
        ->createDefaultEventMessages();
    }
  }

  /**
   * React to Drupal `hook_entity_predelete` hook.
   *
   * @param \Drupal\Core\Entity\EntityInterface $entity
   *   The entity object for the entity that is about to be deleted.
   *
   * @see hook_entity_predelete();
   */
  public function hook_entity_predelete(EntityInterface $entity) {
    if (in_array($entity
      ->getEntityType(), $this->identityChannelManager
      ->getIdentityTypes())) {
      $this
        ->deletePerson($entity);
    }
    if ($this->eventManager
      ->isEvent($entity)) {
      $this
        ->deleteRngEvent($entity);
    }
    if ($entity instanceof RuleComponentInterface) {
      $this
        ->deleteRngRuleComponent($entity);
    }
  }

  /**
   * {@inheritdoc}
   */
  public function getOperationRecords() {
    return $this->operationRecords;
  }

  /**
   * Delete related entities when a person entity.
   *
   * @param \Drupal\Core\Entity\EntityInterface $entity
   *   An identity/person entity.
   */
  protected function deletePerson(EntityInterface $entity) {

    // Remove registrant references to this identity.
    $registrant_ids = Registrant::getRegistrantsIdsForIdentity($entity);
    foreach ($this->registrantStorage
      ->loadMultiple($registrant_ids) as $registrant) {

      /** @var \Drupal\rng\Entity\RegistrantInterface $registrant */
      $registrant
        ->clearIdentity();
      $registrant
        ->save();
    }
  }

  /**
   * Delete related entities when an event is deleted.
   *
   * @param \Drupal\Core\Entity\EntityInterface $entity
   *   An RNG event entity.
   */
  protected function deleteRngEvent(EntityInterface $entity) {

    // Don't need to catch exception from getMeta(), it is already checked by
    // the calling method.
    $event_meta = $this->eventManager
      ->getMeta($entity);

    // Delete registrations.
    $registrations = $event_meta
      ->getRegistrations();
    $this->registrationStorage
      ->delete($registrations);

    // Delete groups.
    $groups = $event_meta
      ->getGroups();
    $this->registrationGroupStorage
      ->delete($groups);

    // Delete rules.
    $rules = $event_meta
      ->getRules(NULL, FALSE, NULL);
    $this->ruleStorage
      ->delete($rules);
  }

  /**
   * Update rule scheduler after a rule entity is saved.
   *
   * @param \Drupal\rng\Entity\RuleInterface $entity
   *   An RNG rule entity.
   */
  protected function postSaveRngRule(RuleInterface $entity) {
    if (isset($entity->original)) {

      // Don't continue if rule status didn't change.
      if ($entity
        ->isActive() == $entity->original
        ->isActive()) {
        return;
      }
    }
    foreach ($entity
      ->getConditions() as $condition) {
      if ('rng_rule_scheduler' == $condition
        ->getPluginId()) {

        // Create, update, or delete the associated rule scheduler entity if the
        // rule status has changed.

        /** @var \Drupal\rng\Plugin\Condition\RuleScheduler $plugin */
        $plugin = $condition
          ->createInstance();
        $plugin
          ->updateRuleSchedulerEntity();
        $plugin_configuration = $plugin
          ->getConfiguration();
        $condition
          ->setConfiguration($plugin_configuration);
        $condition
          ->save();
      }
    }
  }

  /**
   * Delete related entities when a rule component entity is deleted.
   *
   * @param \Drupal\rng\Entity\RuleComponentInterface $entity
   *   An RNG rule component entity.
   */
  protected function deleteRngRuleComponent(RuleComponentInterface $entity) {

    // Delete a TemplateCollection if the entity is a component with
    // configuration for 'rng_courier_message'.
    if ('rng_courier_message' == $entity
      ->getPluginId()) {
      $action = $entity
        ->createInstance();
      if ($action instanceof CourierTemplateCollection) {
        $template_collection = $action
          ->getTemplateCollection();
        if ($template_collection) {
          $template_collection
            ->delete();
        }
      }
    }
  }

}

Classes

Name	Description
RngEntityModel	Enforces RNG model relationships.