content_entity_builder-8.x-1.x-dev/src/Plugin/BaseFieldConfig/CreatedItemBaseFieldConfig.php

<?php

namespace Drupal\content_entity_builder\Plugin\BaseFieldConfig;

use Drupal\Component\Render\FormattableMarkup;
use Drupal\Core\Form\FormStateInterface;
use Drupal\content_entity_builder\ConfigurableBaseFieldConfigBase;
use Drupal\Core\Field\BaseFieldDefinition;

/**
 * CreatedItemBaseFieldConfig.
 *
 * @BaseFieldConfig(
 *   id = "created_base_field_config",
 *   label = @Translation("Created"),
 *   description = @Translation("An entity field containing a UNIX timestamp of when the entity has been created."),
 *   field_type = "created",
 * )
 */
class CreatedItemBaseFieldConfig extends ConfigurableBaseFieldConfigBase {

  /**
   * {@inheritdoc}
   */
  public function defaultConfiguration() {
    return [];
  }

  /**
   * {@inheritdoc}
   */
  public function buildConfigurationForm(array $form, FormStateInterface $form_state) {
    return [];
  }

  /**
   * {@inheritdoc}
   */
  public function buildBaseFieldDefinition() {
    $label = $this->getLabel();
    $description = $this->getDescription();
    $weight = $this->getWeight();

    $base_field_definition = BaseFieldDefinition::create("created")
      ->setLabel($label)
      ->setDescription($description)
      ->setDisplayOptions('view', [
        'label' => 'above',
        'type' => 'timestamp',
        'weight' => $weight,
      ])
      ->setDisplayConfigurable('form', TRUE)
      ->setDisplayConfigurable('view', TRUE);

    return $base_field_definition;
  }

  /**
   * {@inheritdoc}
   */
  public function buildDefaultValueForm(array $form, FormStateInterface $form_state) {
    return NULL;
  }

  /**
   * {@inheritdoc}
   */
  public function exportCode($translatable="FALSE", $revisionable="FALSE") {
  $template = <<<Eof

    \$fields['@field_name'] = BaseFieldDefinition::create('created')
      ->setLabel(t('@label'))
      ->setDescription(t('@description'))
      ->setRevisionable(@revisionable)
      ->setTranslatable(@translatable)
      ->setDisplayOptions('view', [
        'label' => 'above',
        'type' => 'timestamp',
        'weight' => @weight,
      ])
      ->setDisplayConfigurable('form', TRUE)
      ->setDisplayConfigurable('view', TRUE);

Eof;

    $ret = strtr($template, array(
      "@field_name" => $this->getFieldName(),
      "@label" => $this->getLabel(),
      "@description" => $this->getDescription(),
      "@weight" => $this->getWeight(),
      "@translatable" => $translatable,
      "@revisionable" => $revisionable,
    ));
	
    return $ret;
  }

}