WorkspaceDeleteForm.php

<?php

namespace Drupal\workspaces\Form;

use Drupal\Component\Datetime\TimeInterface;
use Drupal\Core\Entity\ContentEntityDeleteForm;
use Drupal\Core\Entity\EntityRepositoryInterface;
use Drupal\Core\Entity\EntityTypeBundleInfoInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\workspaces\WorkspaceAssociationInterface;
use Drupal\workspaces\WorkspaceRepositoryInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;

/**
 * Provides a form for deleting a workspace.
 *
 * @internal
 */
class WorkspaceDeleteForm extends ContentEntityDeleteForm implements WorkspaceFormInterface {
    
    /**
     * The workspace entity.
     *
     * @var \Drupal\workspaces\WorkspaceInterface
     */
    protected $entity;
    
    /**
     * The workspace association service.
     *
     * @var \Drupal\workspaces\WorkspaceAssociationInterface
     */
    protected $workspaceAssociation;
    
    /**
     * The workspace repository service.
     *
     * @var \Drupal\workspaces\WorkspaceRepositoryInterface
     */
    protected $workspaceRepository;
    
    /**
     * {@inheritdoc}
     */
    public static function create(ContainerInterface $container) {
        return new static($container->get('entity.repository'), $container->get('workspaces.association'), $container->get('workspaces.repository'), $container->get('entity_type.bundle.info'), $container->get('datetime.time'));
    }
    
    /**
     * Constructs a WorkspaceDeleteForm object.
     *
     * @param \Drupal\Core\Entity\EntityRepositoryInterface $entity_repository
     *   The entity repository service.
     * @param \Drupal\workspaces\WorkspaceAssociationInterface $workspace_association
     *   The workspace association service to check how many revisions will be
     *   deleted.
     * @param \Drupal\workspaces\WorkspaceRepositoryInterface $workspace_repository
     *   The workspace repository service.
     * @param \Drupal\Core\Entity\EntityTypeBundleInfoInterface $entity_type_bundle_info
     *   The entity type bundle service.
     * @param \Drupal\Component\Datetime\TimeInterface $time
     *   The time service.
     */
    public function __construct(EntityRepositoryInterface $entity_repository, WorkspaceAssociationInterface $workspace_association, WorkspaceRepositoryInterface $workspace_repository, EntityTypeBundleInfoInterface $entity_type_bundle_info = NULL, TimeInterface $time = NULL) {
        parent::__construct($entity_repository, $entity_type_bundle_info, $time);
        $this->workspaceAssociation = $workspace_association;
        $this->workspaceRepository = $workspace_repository;
    }
    
    /**
     * {@inheritdoc}
     */
    public function buildForm(array $form, FormStateInterface $form_state) {
        $form = parent::buildForm($form, $form_state);
        $workspace_tree = $this->workspaceRepository
            ->loadTree();
        if (!empty($workspace_tree[$this->entity
            ->id()]['descendants'])) {
            $form['description']['#markup'] = $this->t('The %label workspace can not be deleted because it has child workspaces.', [
                '%label' => $this->entity
                    ->label(),
            ]);
            $form['actions']['submit']['#disabled'] = TRUE;
            return $form;
        }
        $tracked_entities = $this->workspaceAssociation
            ->getTrackedEntities($this->entity
            ->id());
        $items = [];
        foreach ($tracked_entities as $entity_type_id => $entity_ids) {
            $revision_ids = $this->workspaceAssociation
                ->getAssociatedRevisions($this->entity
                ->id(), $entity_type_id, $entity_ids);
            $label = $this->entityTypeManager
                ->getDefinition($entity_type_id)
                ->getLabel();
            $items[] = $this->formatPlural(count($revision_ids), '1 @label revision.', '@count @label revisions.', [
                '@label' => $label,
            ]);
        }
        $form['revisions'] = [
            '#theme' => 'item_list',
            '#title' => $this->t('The following will also be deleted:'),
            '#items' => $items,
        ];
        return $form;
    }
    
    /**
     * {@inheritdoc}
     */
    public function getDescription() {
        return $this->t('This action cannot be undone, and will also delete all content created in this workspace.');
    }

}