node_type_example.install

<?php


/**
 * @file
 * Install file for node_type_example.
 */

/**
 * Implements hook_install().
 *
 * We don't want users to be able to delete our locked_content_type content
 * type. So therefore we have to tell Drupal that this is the case. This
 * can't be done in the content type's configuration YAML file, so we have to
 * do it in code, here.
 *
 * @ingroup node_type_example
 */
function node_type_example_install() {
    // Do not allow the locked content type to be deleted.
    $locked = Drupal::state()->get('node.type.locked');
    $locked['locked_content_type'] = 'locked_content_type';
    Drupal::state()->set('node.type.locked', $locked);
}

/**
 * Implements hook_uninstall().
 *
 * Our content types will live on in the Drupal installation, even after this
 * module is uninstalled. This is a good thing, since it allows the user to
 * make decisions about their fate. Therefore we should give the user the
 * option of deleting them.
 *
 * Since we told Drupal that our locked_content_type is locked, we now have
 * to tell it to unlock.
 *
 * @ingroup node_type_example
 */
function node_type_example_uninstall() {
    // Allow locked_content_type to be deleted.
    $locked = Drupal::state()->get('node.type.locked');
    unset($locked['locked_content_type']);
    Drupal::state()->set('node.type.locked', $locked);
}