jazzslider

<?php

function lotus_cron() {
  $old_nodes = \Drupal::service('lotus.old_nodes')->load();
  foreach ($old_nodes as $node) {
    $node->setPublished(false);
    $node->save();
  }
}

jazzslider

services:
  lotus.old_nodes:
    class: \Drupal\lotus\OldNodesService
    arguments: ["@entity_type.manager"]

jazzslider

<?php

namespace Drupal\lotus;

use Drupal\Core\Entity\EntityTypeManager;

class OldNodesService {

  protected $entityTypeManager;