PollForm.php in Poll 8

Namespace

Drupal\poll\Form

File

src/Form/PollForm.php

<?php

namespace Drupal\poll\Form;

use Drupal\Core\Entity\ContentEntityForm;
use Drupal\Core\Form\FormStateInterface;

/**
 * Form controller for the poll edit forms.
 */
class PollForm extends ContentEntityForm {

  /**
   * {@inheritdoc}
   */
  public function form(array $form, FormStateInterface $form_state) {
    $form = parent::form($form, $form_state);
    $poll = $this->entity;
    if ($poll
      ->isNew()) {
      $title = $this
        ->t('Add new poll');
    }
    else {
      $title = $this
        ->t('Edit @label', [
        '@label' => $poll
          ->label(),
      ]);
    }
    $form['#title'] = $title;
    foreach ($form['choice']['widget'] as $key => $choice) {
      if (is_int($key) && $form['choice']['widget'][$key]['choice']['#default_value'] != NULL) {
        $form['choice']['widget'][$key]['choice']['#attributes'] = [
          'class' => [
            'poll-existing-choice',
          ],
        ];
      }
    }
    $form['#attached'] = [
      'library' => [
        'poll/admin',
      ],
    ];
    return $form;
  }

  /**
   * {@inheritdoc}
   */
  public function validateForm(array &$form, FormStateInterface $form_state) {
    $poll = $this
      ->buildEntity($form, $form_state);

    // Check for duplicate titles.
    $poll_storage = $this->entityTypeManager
      ->getStorage('poll');
    $result = $poll_storage
      ->getPollDuplicates($poll);
    foreach ($result as $item) {
      if (strcasecmp($item
        ->label(), $poll
        ->label()) == 0) {
        $form_state
          ->setErrorByName('question', $this
          ->t('A feed named %feed already exists. Enter a unique question.', array(
          '%feed' => $poll
            ->label(),
        )));
      }
    }
    parent::validateForm($form, $form_state);
  }

  /**
   * {@inheritdoc}
   */
  public function save(array $form, FormStateInterface $form_state) {
    $poll = $this->entity;
    $insert = (bool) $poll
      ->id();
    $poll
      ->save();
    if ($insert) {
      $this
        ->messenger()
        ->addMessage($this
        ->t('The poll %poll has been updated.', array(
        '%poll' => $poll
          ->label(),
      )));
    }
    else {
      \Drupal::logger('poll')
        ->notice('Poll %poll added.', array(
        '%poll' => $poll
          ->label(),
        'link' => $poll
          ->toLink()
          ->toString(),
      ));
      $this
        ->messenger()
        ->addMessage($this
        ->t('The poll %poll has been added.', array(
        '%poll' => $poll
          ->label(),
      )));
    }
    $form_state
      ->setRedirect('poll.poll_list');
  }

}

Classes

Name	Description
PollForm	Form controller for the poll edit forms.