outline-8.x-1.x-dev/modules/outline_graphql/src/Plugin/GraphQL/DataProducer/Entry/EditFormUrl.php

<?php

namespace Drupal\outline_graphql\Plugin\GraphQL\DataProducer\Entry;

use Drupal\Core\Entity\EntityInterface;
use Drupal\graphql\Plugin\GraphQL\DataProducer\DataProducerPluginBase;
use Drupal\Core\Url;

/**
 * @DataProducer(
 *   id = "edit_form_url",
 *   name = @Translation("Entry Edit Form URL"),
 *   description = @Translation("Returns the entry's edit form URL."),
 *   produces = @ContextDefinition("string",
 *     label = @Translation("Edit Form URL")
 *   ),
 *   consumes = {
 *     "entity" = @ContextDefinition("entity",
 *       label = @Translation("Entity")
 *     )
 *   }
 * )
 */
class EditFormUrl extends DataProducerPluginBase {

  /**
   * @param \Drupal\Core\Entity\EntityInterface $entity
   *
   * @return string
   */
  public function resolve(EntityInterface $entity) {
    //return $entity->getEditFormUrl();
    return Url::fromRoute('entity.outline_entry.edit_form', ['outline_entry' => $entity->id()])->toString();
  }

}