movie.module

<?php declare(strict_types = 1);

/**
 * @file
 * Provides a movie entity type.
 */

use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Render\Element;
use Drupal\user\UserInterface;

/**
 * Implements hook_theme().
 */
function movie_theme(): array {
  return [
    'movie' => ['render element' => 'elements'],
  ];
}

/**
 * Prepares variables for movie templates.
 *
 * Default template: movie.html.twig.
 *
 * @param array $variables
 *   An associative array containing:
 *   - elements: An associative array containing the movie information and any
 *     fields attached to the entity.
 *   - attributes: HTML attributes for the containing element.
 */
function template_preprocess_movie(array &$variables): void {
  $variables['view_mode'] = $variables['elements']['#view_mode'];
  foreach (Element::children($variables['elements']) as $key) {
    $variables['content'][$key] = $variables['elements'][$key];
  }
}

/**
 * Implements hook_user_cancel().
 */
function movie_user_cancel($edit, UserInterface $account, $method): void {
  switch ($method) {
    case 'user_cancel_block_unpublish':
      // Unpublish movies.
      $storage = \Drupal::entityTypeManager()->getStorage('movie');
      $movie_ids = $storage->getQuery()
        ->condition('uid', $account->id())
        ->condition('status', 1)
        ->accessCheck(FALSE)
        ->execute();
      foreach ($storage->loadMultiple($movie_ids) as $movie) {
        $movie->set('status', FALSE)->save();
      }
      break;

    case 'user_cancel_reassign':
      // Anonymize movies.
      $storage = \Drupal::entityTypeManager()->getStorage('movie');
      $movie_ids = $storage->getQuery()
        ->condition('uid', $account->id())
        ->accessCheck(FALSE)
        ->execute();
      foreach ($storage->loadMultiple($movie_ids) as $movie) {
        $movie->setOwnerId(0)->save();
      }
      break;
  }
}

/**
 * Implements hook_ENTITY_TYPE_predelete() for user entities.
 */
function movie_user_predelete(UserInterface $account): void {
  // Delete movies that belong to this account.
  $storage = \Drupal::entityTypeManager()->getStorage('movie');
  $movie_ids = $storage->getQuery()
    ->condition('uid', $account->id())
    ->accessCheck(FALSE)
    ->execute();
  $storage->delete(
    $storage->loadMultiple($movie_ids)
  );
  // Delete old revisions.
  $movie_ids = $storage->getQuery()
    ->allRevisions()
    ->condition('uid', $account->id())
    ->accessCheck(FALSE)
    ->execute();
  foreach (array_keys($movie_ids) as $revision_id) {
    $storage->deleteRevision($revision_id);
  }
}

/**
 * Implements hook_form_alter().
 */
function movie_form_alter(array &$form, FormStateInterface $form_state, $form_id): void {
  if ($form_id === 'movie_edit_form' || $form_id === 'movie_add_form') {
    $form['#validate'][] = 'movie_movie_form_validate';
    $form['#attached']['library'][] = 'movie/movie_form';
  }
}

/**
 * Validate that release_date field cannot be in the future.
 */
function movie_movie_form_validate(array &$form, FormStateInterface $form_state): void {
  $release_date = $form_state->getValue('release_date');
  if (isset($release_date[0]["value"])) {
    /** @var \Drupal\Core\Datetime\DrupalDateTime $release_date */
    $release_date = $release_date[0]["value"];
    if ($release_date->format('Y-m-d') > date('Y-m-d')) {
      $form_state->setErrorByName('release_date', t('Release date cannot be in the future.'));
    }
  }
}