LinkApprove.php

<?php

namespace Drupal\comment\Plugin\views\field;

use Drupal\Core\Url;
use Drupal\views\Plugin\views\field\LinkBase;
use Drupal\views\ResultRow;

/**
 * Provides a comment approve link.
 *
 * @ingroup views_field_handlers
 *
 * @ViewsField("comment_link_approve")
 */
class LinkApprove extends LinkBase {
    
    /**
     * {@inheritdoc}
     */
    protected function getUrlInfo(ResultRow $row) {
        return Url::fromRoute('comment.approve', [
            'comment' => $this->getEntity($row)
                ->id(),
        ]);
    }
    
    /**
     * {@inheritdoc}
     */
    protected function renderLink(ResultRow $row) {
        $this->options['alter']['query'] = $this->getDestinationArray();
        return parent::renderLink($row);
    }
    
    /**
     * {@inheritdoc}
     */
    protected function getDefaultLabel() {
        return $this->t('Approve');
    }

}