contacts_events-8.x-1.x-dev/modules/printing/src/Plugin/Field/FieldFormatter/PrintLogFormatter.php

<?php

namespace Drupal\contacts_events_printing\Plugin\Field\FieldFormatter;

use Drupal\Core\Datetime\DrupalDateTime;
use Drupal\Core\Field\FieldItemListInterface;
use Drupal\Core\Field\FormatterBase;
use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;

/**
 * Plugin implementation of the 'ce_print_log_table' formatter.
 *
 * @FieldFormatter(
 *   id = "ce_print_log",
 *   label = @Translation("Table"),
 *   field_types = {"ce_print_log"}
 * )
 */
class PrintLogFormatter extends FormatterBase implements ContainerFactoryPluginInterface {

  /**
   * The date formatter.
   *
   * @var \Drupal\Core\Datetime\DateFormatterInterface
   */
  protected $dateFormatter;

  /**
   * The user entity storage.
   *
   * @var \Drupal\user\UserStorageInterface
   */
  protected $userStorage;

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
    $formatter = new static(
      $plugin_id,
      $plugin_definition,
      $configuration['field_definition'],
      $configuration['settings'],
      $configuration['label'],
      $configuration['view_mode'],
      $configuration['third_party_settings']
    );
    $formatter->dateFormatter = $container->get('date.formatter');
    $formatter->userStorage = $container->get('entity_type.manager')->getStorage('user');
    return $formatter;
  }

  /**
   * {@inheritdoc}
   */
  public function viewElements(FieldItemListInterface $items, $langcode) {
    if ($items->isEmpty()) {
      return [];
    }

    $table = [
      '#type' => 'table',
      '#header' => [
        'time' => $this->t('Printed at'),
        'uid' => $this->t('Printed by'),
      ],
    ];

    foreach ($items as $delta => $item) {
      $row = [
        'time' => [],
        'uid' => [],
      ];

      $date = DrupalDateTime::createFromFormat('Y-m-d\TH:i:s', $item->time);
      $timestamp = $date->getTimestamp();
      $formatted_date = $this->dateFormatter->format($timestamp, 'short');
      $iso_date = $this->dateFormatter->format($timestamp, 'custom', 'Y-m-d\TH:i:s') . 'Z';
      $row['time'] = [
        '#theme' => 'time',
        '#text' => $formatted_date,
        '#html' => FALSE,
        '#attributes' => [
          'datetime' => $iso_date,
        ],
        '#cache' => [
          'contexts' => [
            'timezone',
          ],
        ],
      ];

      $user = $this->userStorage->load($item->uid);
      $row['uid']['#markup'] = $user ? $user->label() : $item->uid;

      $table[$delta] = $row;
    }

    return [$table];
  }

}