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Attach a reusable paragraph entity to a field in Drupal 9

Erik Olsen answered on February 18, 2023 Popularity 2/10 Helpfulness 1/10

answer Attach a reusable paragraph entity to a field in Drupal 9

Attach a reusable paragraph entity to a field in Drupal 9

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<?php

namespace Drupal\module_name\Services;

use Drupal\Core\Entity\EntityTypeManagerInterface;

class DefaultParagraphsService {

  protected $entityTypeManager;

  public function __construct(EntityTypeManagerInterface $entityTypeManager) {
    $this->entityTypeManager = $entityTypeManager;
  }

  public function getReferencedParagraph($entity) {
    // get the original paragraph entity from 'paragraphs_library_item' or 'from_library'
    if ($entity->hasField('field_reusable_paragraph') && $library_item = $entity->get('field_reusable_paragraph')->entity) {
      return $library_item->get('paragraphs')->entity;
    }
    if ($entity->hasField('paragraphs') && $paragraph = $entity->get('paragraphs')->entity) {
      return $paragraph;
    }
    return $entity;
  }

  public function attachDefaultParagraphs(&$entity, $field_name, $default_paragraph_blocks = null) {
    if (!$default_paragraph_blocks || !$entity->hasField($field_name)) {
      return;
    }
    $storage = $this->entityTypeManager->getStorage('paragraph');
    $library_storage = $this->entityTypeManager->getStorage('paragraphs_library_item');
    $field = $entity->get($field_name);

    // get the current types already on the field
    $current_types = array_map(function ($item) {
      return $this->getReferencedParagraph($item)->bundle();
    }, $field->referencedEntities());

    foreach ($default_paragraph_blocks as $expected_type => $library_id) {
      if ($library_item = $library_storage->load($library_id)) {
        $type = $this->getReferencedParagraph($library_item)->bundle();
        // make sure the field doesnt already have a paragraph of this type
        if (!in_array($type, $current_types) && $type == $expected_type) {
          // create a 'from_library' from the library_item
          $paragraph = \Drupal\paragraphs\Entity\Paragraph::create([
            'type' => 'from_library',
            'field_reusable_paragraph' => $library_item,
          ]);
          $field->appendItem($paragraph);
        }
      }
    }
  }
}

Popularity 2/10 Helpfulness 1/10 Language php

Source: gitlab.milesmedia.com

Tags: drupal-9 entity field paragraph whatever

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Contributed on Feb 18 2023

Erik Olsen

0 Answers Avg Quality 2/10

Attach a reusable paragraph entity to a field in Drupal 9

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