bcubed-8.x-1.0-beta5/bcubed.install

<?php

/**
 * @file
 * Install, update and uninstall functions for the Bcubed module.
 */

use Drupal\field\Entity\FieldStorageConfig;
use Drupal\field\Entity\FieldConfig;

/**
 * Implements hook_uninstall().
 */
function bcubed_uninstall() {
  // Remove the field storage and instance configuration.
  $content_types = \Drupal::entityTypeManager()->getStorage('node_type')->loadMultiple();

  foreach ($content_types as $type => $value) {
    if (FieldConfig::loadByName('node', $type, 'bcubed')) {
      FieldConfig::loadByName('node', $type, 'bcubed')->delete();
    }
  }
  // After all field instances have been deleted, delete the field storage.
  if (FieldStorageConfig::loadByName('node', 'bcubed')) {
    FieldStorageConfig::loadByName('node', 'bcubed')->delete();
  }
}