services

tags:
  - { name: cache_prewarmable }

/**
  * Implements \Drupal\Core\PreWarm\PreWarmableInterface.
  */
public function preWarm(): void {
  $this->getDefinitions();
}

<?php

declare(strict_types=1);

namespace Drupal\my_module;

use Drupal\Core\Session\AccountInterface;
use Symfony\Component\DependencyInjection\Attribute\Autowire;

class Example {

  public function __construct(
    #[Autowire(service: 'current_user')]
    private readonly AccountInterface $currentUser,
  ) {
  }

  public function getCurrentUser(): AccountInterface {
    return $this->currentUser;
  }

}

services:
  my_module.example:
    class: Drupal\my_module\Service\Example
    autowire: true
  Drupal\my_module\Service\Example: '@my_module.example'

use Drupal\Core\Datetime\DrupalDateTime;

/** @var Drupal\Core\Datetime\DateFormatterInterface $date_formatter */
$date_formatter = \Drupal::service('date.formatter');

// Get DateTime object from stored date from a DateTimeFieldItemList field.
$my_date = $node->field_my_date->date;

// Get unix timestamp.
$my_date_timestamp = $my_date->getTimestamp();

// For formatting your DateTime object all other arguments are optional:
// See DateFormatterInterface for built-in options, or use machine name of a date format in config.
$type = 'medium';
// Custom PHP date format if $type="custom".
$format = '';

$formatted = $date_formatter->format($my_date_timestamp, $type, $format, $timezone = NULL, $langcode = NULL);

use Drupal\Core\Datetime\DrupalDateTime;

/** @var Drupal\Core\Datetime\DateFormatterInterface $date_formatter */
$date_formatter = \Drupal::service('date.formatter');

// Get DateTime objects from stored date from a DateTimeFieldItemList field.
$start_date = $node->field_my_date->start_date;
$end_date = $node->field_my_date->end_date;

// For formatting your DateTime object all other arguments are optional:
// See DateFormatterInterface for built-in options, or use machine name of a date format in config.
$type = 'medium';
// Custom PHP date format if $type="custom".
$format = '';

$start_date_formatted = $date_formatter->format($start_date, $type, $format, $timezone = NULL, $langcode = NULL);
$end_date_formatted = $date_formatter->format($end_date, $type, $format, $timezone = NULL, $langcode = NULL);

<?php

namespace Drupal\poormans_domain\Routing;

use Drupal\Core\Routing\RouteProvider;
use Symfony\Component\HttpFoundation\Request;

/**
 * Custom router.route_provider service to make it domain context sensitive.
 */
class DomainRouteProvider extends RouteProvider {

  /**
   * {@inheritdoc}
   */
  protected function getRouteCollectionCacheId(Request $request) {
    // Add domain sensitive cache information to the cid.
    $this->addExtraCacheKeyPart('poormans_domain', $request->getHost());
    return parent::getRouteCollectionCacheId($request);
  }

}

services:
  poormans_domain.route_provider:
    class: Drupal\poormans_domain\Routing\DomainRouteProvider
    decorates: router.route_provider
    decoration_priority: 10
    arguments: ['@database', '@state', '@path.current', '@cache.data', '@path_processor_manager', '@cache_tags.invalidator', 'router', '@language_manager']