ParagraphsFrontendUIAddSet.php in Paragraphs frontend ui 8

Namespace

Drupal\paragraphs_frontend_ui\Form

File

src/Form/ParagraphsFrontendUIAddSet.php

<?php

namespace Drupal\paragraphs_frontend_ui\Form;

use Drupal\Core\Form\FormBase;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Url;
use Drupal\paragraphs_frontend_ui\Entity\ParagraphSet;
use Drupal\paragraphs\Entity\Paragraph;
use Drupal\Core\Ajax\ReplaceCommand;
use Drupal\Core\Ajax\AjaxResponse;

/**
 * Class CleanupUrlAliases.
 *
 * @package Drupal\paragraphs_ui_add_set\Form
 */
class ParagraphsFrontendUIAddSet extends FormBase {

  /**
   * {@inheritdoc}
   */
  public function getFormId() {
    return 'paragraphs_frontend_ui_add_set';
  }

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

    // Set the paragraph to the form state.
    $form_state
      ->addBuildInfo('paragraph', $paragraph);

    // Render the sets.
    $sets = \Drupal::entityTypeManager()
      ->getListBuilder('paragraph_set')
      ->load();
    $view_builder = \Drupal::entityTypeManager()
      ->getViewBuilder('paragraph_set');
    if (empty($sets)) {
      $form['empty_text'] = [
        '#type' => 'html_tag',
        '#tag' => 'p',
        '#value' => $this
          ->t('You have not created any paragraph sets.'),
      ];
    }
    foreach ($sets as $set) {
      $form['sets'][$set
        ->id()] = [
        '#type' => 'container',
      ];
      $form['sets'][$set
        ->id()]['element'] = $view_builder
        ->view($set);
      $form['sets'][$set
        ->id()]['add_set'] = [
        '#type' => 'button',
        '#name' => $set
          ->id() . '_add_set',
        '#value' => $this
          ->t('Add'),
        '#ajax' => [
          'callback' => [
            get_class($this),
            'addMoreAjax',
          ],
          'effect' => 'fade',
        ],
      ];
    }
    $user = \Drupal::currentUser();
    if ($user
      ->hasPermission('add paragraph set entities')) {
      $form['add_set'] = [
        '#type' => 'link',
        '#title' => $this
          ->t('Add a new set'),
        '#url' => Url::fromRoute('entity.paragraph_set.add_form'),
      ];
    }
    return $form;
  }

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

    // @todo create an ajax fallback
  }

  /**
   * {@inheritdoc}
   */
  public static function addMoreAjax(array $form, FormStateInterface $form_state) {
    $build_info = $form_state
      ->getBuildInfo();
    $triggering_paragraph = $build_info['paragraph'];
    $trigger = $form_state
      ->getTriggeringElement()['#name'];
    $set = substr($trigger, 0, -8);
    if (is_numeric($set)) {
      $set = ParagraphSet::load($set);
      $set_paragraph = Paragraph::load($set
        ->get('field_paragraph')
        ->getValue()[0]['target_id']);
      $parent = $triggering_paragraph
        ->getParentEntity();
      $parent_type = $parent
        ->getEntityTypeId();
      $parent_bundle = $parent
        ->getType();
      $parent_entity_id = $parent
        ->id();
      $parent_field_name = $triggering_paragraph
        ->get('parent_field_name')
        ->getValue()[0]['value'];
      $paragraph_items = $parent->{$parent_field_name}
        ->getValue();
      $paragraphs_new = [];
      foreach ($paragraph_items as $delta => $paragraph_item) {
        $paragraphs_new[] = $paragraph_item;
        if ($paragraph_item['target_id'] == $triggering_paragraph
          ->id()) {
          $new_paragraph = $set_paragraph
            ->createDuplicate();
          $new_paragraph
            ->save();
          $paragraphs_new[] = [
            'target_id' => $new_paragraph
              ->id(),
            'target_revision_id' => $new_paragraph
              ->getRevisionId(),
          ];
        }
      }
      $parent->{$parent_field_name}
        ->setValue($paragraphs_new);
      $parent
        ->save();
      $identifier = '[data-paragraphs-frontend-ui=' . $parent_field_name . '-' . $parent
        ->id() . ']';
      $response = new AjaxResponse();

      // Refresh the paragraphs field.
      $response
        ->addCommand(new ReplaceCommand($identifier, $parent
        ->get($parent_field_name)
        ->view('default')));
      return $response;
    }

    /*
        $command = new CloseModalDialogCommand();
        $response->addCommand($command);
        return $response;*/
  }

}

Classes

Name	Description
ParagraphsFrontendUIAddSet	Class CleanupUrlAliases.