ParagraphCloneForm.php in Paragraphs table 8

Namespace

Drupal\paragraphs_table\Form

File

src/Form/ParagraphCloneForm.php

<?php

namespace Drupal\paragraphs_table\Form;

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

/**
 * Paragraph Clone Form class.
 */
class ParagraphCloneForm extends ContentEntityForm {

  /**
   * The entity being cloned by this form.
   *
   * @var \Drupal\paragraphs\ParagraphInterface
   */
  protected $originalEntity;

  /**
   * {@inheritdoc}
   */
  protected function prepareEntity() {
    parent::prepareEntity();
    $account = $this
      ->currentUser();

    // Keep track of the original entity.
    $this->originalEntity = $this->entity;

    // Create a duplicate.
    $paragraph = $this->entity = $this->entity
      ->createDuplicate();
    $paragraph
      ->set('created', \Drupal::time()
      ->getRequestTime());
    $paragraph
      ->setOwnerId($account
      ->id());
    $paragraph
      ->setRevisionAuthorId($account
      ->id());
  }

  /**
   * {@inheritdoc}
   */
  public function form(array $form, FormStateInterface $form_state) {
    $form = parent::form($form, $form_state);
    $entity = $this->entity;
    $host = $entity
      ->getParentEntity();
    $entity_type = $host
      ->getEntityTypeId();
    $bundle = $host
      ->bundle();
    $parent = $host
      ->id();
    $field = $entity
      ->get('parent_field_name')->value;
    $entityFieldManager = \Drupal::service('entity_field.manager')
      ->getFieldDefinitions($entity_type, $bundle);
    $form['#title'] = $this
      ->t('Clone %type item %id', [
      '%type' => $entityFieldManager[$field]
        ->getLabel(),
      '%id' => $entity
        ->id(),
    ]);
    $form['entity_type'] = [
      '#type' => 'hidden',
      '#value' => $entity_type,
    ];
    $form['bundle'] = [
      '#type' => 'hidden',
      '#value' => $bundle,
    ];
    $form['parent'] = [
      '#type' => 'hidden',
      '#value' => $parent,
    ];
    $form['field'] = [
      '#type' => 'hidden',
      '#value' => $field,
    ];
    return $form;
  }

  /**
   * {@inheritdoc}
   */
  public function validateForm(array &$form, FormStateInterface $form_state) {
    $destination_entity_type = $form_state
      ->getValue([
      'entity_type',
    ]);
    $destination_entity_id = $form_state
      ->getValue([
      'parent',
    ]);
    $destination_field = $form_state
      ->getValue([
      'field',
    ]);
    if ($destination_entity_id && $destination_field) {

      /** @var \Drupal\Core\Entity\FieldableEntityInterface $destination_entity */
      $destination_entity = $this->entityTypeManager
        ->getStorage($destination_entity_type)
        ->load($destination_entity_id);
      if ($destination_entity) {
        if (!$destination_entity
          ->access('update')) {
          $form_state
            ->setError($form['parent'], 'You are not allowed to update this content.');
        }
        if (!$destination_entity
          ->get($destination_field)
          ->access('edit')) {
          $form_state
            ->setError($form['field'], 'You are not allowed to edit this field.');
        }
      }
    }
    return parent::validateForm($form, $form_state);
  }

  /**
   * {@inheritdoc}
   */
  public function save(array $form, FormStateInterface $form_state) {
    $destination_entity_type = $form_state
      ->getValue([
      'entity_type',
    ]);
    $destination_entity_id = $form_state
      ->getValue([
      'parent',
    ]);
    $destination_field = $form_state
      ->getValue([
      'field',
    ]);

    /** @var \Drupal\Core\Entity\FieldableEntityInterface $destination_entity */
    $destination_entity = $this->entityTypeManager
      ->getStorage($destination_entity_type)
      ->load($destination_entity_id);
    $destination_entity
      ->get($destination_field)
      ->appendItem($this->entity);
    $destination_entity
      ->save();
    $this->entity = $this->entityTypeManager
      ->getStorage($this->entity
      ->getEntityTypeId())
      ->loadUnchanged($this->entity
      ->id());
    $request = $this
      ->getRequest();
    if (!empty($request->query) && $request->query
      ->has('destination')) {
      $destination = $request->query
        ->get('destination');
      if (strpos($destination, '/') !== 0) {
        $destination = '/' . $destination;
      }
      $url = Url::fromUserInput($destination);
      $request->query
        ->remove('destination');
      $form_state
        ->setRedirectUrl($url);
    }
    else {
      $form_state
        ->setRedirectUrl($destination_entity
        ->toUrl());
    }
  }

}

Classes

Name	Description
ParagraphCloneForm	Paragraph Clone Form class.