By overridding a given bundle type:
<?php
// modules/opd_presentations/opd_presentations.module
function opd_presentations_entity_bundle_info_alter(array &$bundles): void {
if (isset($bundles['node'])) {
$bundles['node'][Presentation::NODE_TYPE]['class'] = Presentation::class;
}
if (isset($bundles['paragraph'])) {
$bundles['paragraph'][Event::PARAGRAPH_TYPE]['class'] = Event::class;
}
}
I can write my own bundle classes that extend Node, Paragraph, etc, with its own custom methods and behaviour.
<?php
// modules/opd_presentations/src/Presentation.php
declare(strict_types=1);
namespace Drupal\opd_presentations;
use Drupal\paragraphs\Entity\Paragraph;
use Drupal\paragraphs\ParagraphInterface;
final class Event extends Paragraph implements ParagraphInterface {
public const PARAGRAPH_TYPE = 'event';
public function getEventDate(): string {
/** @var non-empty-string */
return $this->get('field_date')->value;
}
public function getEventName(): string {
/** @var non-empty-string */
return $this->get('field_event_name')->value;
}
public function isPast(): bool {
return $this->getEventDate() < strtotime('today');
}
}