closedquestion-8.x-3.x-dev/src/Form/ClosedQuestionAnswerForm.php

<?php

namespace Drupal\closedquestion\Form;

use Drupal\Component\Datetime\TimeInterface;
use Drupal\Core\Datetime\DateFormatterInterface;
use Drupal\Core\Entity\ContentEntityForm;
use Drupal\Core\Entity\EntityRepositoryInterface;
use Drupal\Core\Entity\EntityTypeBundleInfoInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Session\AccountInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;

/**
 * Form handler for the answers edit forms of closed questions.
 *
 * @internal
 */
class ClosedQuestionAnswerForm extends ContentEntityForm {

  /**
   * The Current User object.
   *
   * @var \Drupal\Core\Session\AccountInterface
   */
  protected $currentUser;

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

  /**
   * Constructs a form object.
   *
   * @param \Drupal\Core\Entity\EntityRepositoryInterface $entity_repository
   *   The entity repository.
   * @param \Drupal\Core\Entity\EntityTypeBundleInfoInterface $entity_type_bundle_info
   *   The entity type bundle service.
   * @param \Drupal\Component\Datetime\TimeInterface $time
   *   The time service.
   * @param \Drupal\Core\Session\AccountInterface $current_user
   *   The current user.
   * @param \Drupal\Core\Datetime\DateFormatterInterface $date_formatter
   *   The date formatter service.
   */
  public function __construct(EntityRepositoryInterface $entity_repository, EntityTypeBundleInfoInterface $entity_type_bundle_info = NULL, TimeInterface $time = NULL, AccountInterface $current_user, DateFormatterInterface $date_formatter) {
    parent::__construct($entity_repository, $entity_type_bundle_info, $time);
    $this->currentUser = $current_user;
    $this->dateFormatter = $date_formatter;
  }

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container) {
    return new static(
      $container->get('entity.repository'),
      $container->get('entity_type.bundle.info'),
      $container->get('datetime.time'),
      $container->get('current_user'),
      $container->get('date.formatter')
    );
  }

  /**
   * {@inheritdoc}
   */
  public function form(array $form, FormStateInterface $form_state) {

    /** @var \Drupal\closedquestion\Entity\ClosedQuestionAnswerInterface $entity */
    $entity = $this->entity;

    if ($this->operation == 'edit') {
      $form['#title'] = $this->t('<em>Edit</em> @title', [
        '@title' => $entity->label(),
      ]);
    }

    // Changed must be sent to the client, for later overwrite error checking.
    $form['changed'] = [
      '#type' => 'hidden',
      '#default_value' => $entity->getChangedTime(),
    ];

    $form = parent::form($form, $form_state);

    $form['status']['#group'] = 'footer';

    // Closed question author information for administrators.
    $form['author'] = [
      '#type' => 'details',
      '#title' => t('Authoring information'),
      '#group' => 'advanced',
      '#attributes' => [
        'class' => ['closedquestion-form-author'],
      ],
      '#attached' => [
        'library' => ['closedquestion/drupal.closedquestion'],
      ],
      '#weight' => 90,
      '#optional' => TRUE,
    ];

    if (isset($form['uid'])) {
      $form['uid']['#group'] = 'author';
    }

    if (isset($form['created'])) {
      $form['created']['#group'] = 'author';
    }

    $form['#attached']['library'][] = 'closedquestion/closedquestion.form';

    return $form;
  }

  /**
   * {@inheritdoc}
   */
  protected function actions(array $form, FormStateInterface $form_state) {
    $element = parent::actions($form, $form_state);
    $entity = $this->entity;

    $element['delete']['#access'] = $entity->access('delete');
    $element['delete']['#weight'] = 100;

    return $element;
  }

  /**
   * {@inheritdoc}
   */
  public function save(array $form, FormStateInterface $form_state) {
    $entity = $this->entity;
    $insert = $entity->isNew();
    $entity->save();
    $entity_link = $entity->toLink($this->t('View'))->toString();
    $context = ['%title' => $entity->label(), 'link' => $entity_link];
    $t_args = ['%title' => $entity->toLink()->toString()];

    if ($insert) {
      $this->logger('closedquestion')->notice('The answer %title has been created.', $context);
      $this->messenger()->addStatus($this->t('The answer %title has been created.', $t_args));
    }
    else {
      $this->logger('closedquestion')->notice('The answer %title has been updated.', $context);
      $this->messenger()->addStatus($this->t('The answer %title has been updated.', $t_args));
    }

    if ($entity->id()) {
      $form_state->setValue('id', $entity->id());
      $form_state->set('id', $entity->id());
      $form_state->setRedirect('entity.closedquestion_answer.collection');
    }
    else {
      // In the unlikely case something went wrong on save, the entity will be
      // rebuilt and entity form redisplayed the same way as in preview.
      $this->messenger()->addError($this->t('The answer could not be saved.'));
      $form_state->setRebuild();
    }
  }

}