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- <?php
- namespace Drupal\Core\Entity;
- /**
- * Class BundleEntityFormBase is a base form for bundle config entities.
- */
- class BundleEntityFormBase extends EntityForm {
- /**
- * Protects the bundle entity's ID property's form element against changes.
- *
- * This method is assumed to be called on a completely built entity form,
- * including a form element for the bundle config entity's ID property.
- *
- * @param array $form
- * The completely built entity bundle form array.
- *
- * @return array
- * The updated entity bundle form array.
- */
- protected function protectBundleIdElement(array $form) {
- $entity = $this->getEntity();
- $id_key = $entity->getEntityType()->getKey('id');
- assert(isset($form[$id_key]));
- $element = &$form[$id_key];
- // Make sure the element is not accidentally re-enabled if it has already
- // been disabled.
- if (empty($element['#disabled'])) {
- $element['#disabled'] = !$entity->isNew();
- }
- return $form;
- }
- }
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