{% extends "base/class.php.twig" %}
{% block file_path %}
\Drupal\{{module}}\Form\{{ entity_class }}RevisionDeleteForm.
{% endblock %}
{% block namespace_class %}
namespace Drupal\{{module}}\Form;
{% endblock %}
{% block use_class %}
use Drupal\Core\Form\ConfirmFormBase;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Url;
use Symfony\Component\DependencyInjection\ContainerInterface;
{% endblock %}
{% block class_declaration %}
/**
* Provides a form for deleting a {{ label }} revision.
*
* @ingroup {{module}}
*/
class {{ entity_class }}RevisionDeleteForm extends ConfirmFormBase {% endblock %}
{% block class_methods %}
/**
* The {{ label }} revision.
*
* @var \Drupal\{{module}}\Entity\{{ entity_class }}Interface
*/
protected $revision;
/**
* The {{ label }} storage.
*
* @var \Drupal\Core\Entity\EntityStorageInterface
*/
protected ${{ entity_class[:1]|lower ~ entity_class[1:] }}Storage;
/**
* The database connection.
*
* @var \Drupal\Core\Database\Connection
*/
protected $connection;
/**
* {@inheritdoc}
*/
public static function create(ContainerInterface $container) {
$instance = parent::create($container);
$instance->{{ entity_class[:1]|lower ~ entity_class[1:] }}Storage = $container->get('entity_type.manager')->getStorage('{{ entity_name }}');
$instance->connection = $container->get('database');
return $instance;
}
/**
* {@inheritdoc}
*/
public function getFormId() {
return '{{ entity_name }}_revision_delete_confirm';
}
/**
* {@inheritdoc}
*/
public function getQuestion() {
return $this->t('Are you sure you want to delete the revision from %revision-date?', [
'%revision-date' => \Drupal::service('date.formatter')->format($this->revision->getRevisionCreationTime()),
]);
}
/**
* {@inheritdoc}
*/
public function getCancelUrl() {
return new Url('entity.{{ entity_name }}.version_history', ['{{ entity_name }}' => $this->revision->id()]);
}
/**
* {@inheritdoc}
*/
public function getConfirmText() {
return $this->t('Delete');
}
/**
* {@inheritdoc}
*/
public function buildForm(array $form, FormStateInterface $form_state, ${{ entity_name }}_revision = NULL) {
$this->revision = $this->{{ entity_class }}Storage->loadRevision(${{ entity_name }}_revision);
$form = parent::buildForm($form, $form_state);
return $form;
}
/**
* {@inheritdoc}
*/
public function submitForm(array &$form, FormStateInterface $form_state) {
$this->{{ entity_class }}Storage->deleteRevision($this->revision->getRevisionId());
$this->logger('content')->notice('{{ label }}: deleted %title revision %revision.', ['%title' => $this->revision->label(), '%revision' => $this->revision->getRevisionId()]);
$this->messenger()->addMessage(t('Revision from %revision-date of {{ label }} %title has been deleted.', ['%revision-date' => \Drupal::service('date.formatter')->format($this->revision->getRevisionCreationTime()), '%title' => $this->revision->label()]));
$form_state->setRedirect(
'entity.{{ entity_name }}.canonical',
['{{ entity_name }}' => $this->revision->id()]
);
if ($this->connection->query('SELECT COUNT(DISTINCT vid) FROM {{ '{'~entity_name~'_field_revision}' }} WHERE id = :id', [':id' => $this->revision->id()])->fetchField() > 1) {
$form_state->setRedirect(
'entity.{{ entity_name }}.version_history',
['{{ entity_name }}' => $this->revision->id()]
);
}
}
{% endblock %}