ercore-8.x-1.20/modules/ercore_publication/ercore_publication.install

<?php

/**
 * @file
 * The ercore_publication.install file for updates.
 */

use Drupal\node\Entity\Node;
use Drupal\Core\Entity\EntityDefinitionUpdateManager;
use Drupal\Core\Entity\EntityTypeInterface;
use Drupal\field\Entity\FieldConfig;
use Drupal\field\Entity\FieldStorageConfig;

/**
 * Switching from plain-text citation field to long-text.
 */
function ercore_publication_update_8001() {
  // Update config before updating fields.
  \Drupal::service('config.installer')->installDefaultConfig('module', 'ercore_publication');
  // Get an array of all Publication node ids.
  $nids = \Drupal::entityQuery('node')
    ->condition('type', 'ercore_publication')
    ->execute();

  // Load all the publications.
  $nodes = Node::loadMultiple($nids);
  foreach ($nodes as $node) {
    $old_value = $node->get('field_ercore_pb_citation')->getValue();
    $node->set('field_ercore_pb_full_citation', $old_value);
    $node->save();
  }
}

/**
 * Uninstall old citation field.
 */
function ercore_publication_update_8002() {
  $configs = [
    'field.field.node.ercore_publication.field_ercore_pb_citation',
    'field.storage.node.ercore_publication.field_ercore_pb_citation',
    'field.storage.node.field_ercore_pb_citation',
  ];
  foreach ($configs as $config) {
    \Drupal::configFactory()->getEditable($config)->delete();
  }
}

/**
 * Uninstall old citation field.
 */
function ercore_publication_update_8703() {
//   $entity_update_manager = \Drupal::entityDefinitionUpdateManager();
//   $entity_type = $entity_update_manager->getEntityType('field_ercore_pb_citation');
//   $entity_update_manager->uninstallEntityType($entity_type);
  FieldStorageConfig::loadByName('node', 'field_ercore_pb_citation')->delete();
  // $entity_type_manager = \Drupal::entityTypeManager();
  // $bundle_of = 'node';

  // $storage = $entity_type_manager->getStorage($bundle_of);
  // $bundle_definition = $entity_type_manager->getDefinition($bundle_of);
  // // Sometimes the primary key isn't 'id'. e.g. 'eid' or 'item_id'.
  // $id_key = $bundle_definition->getKey('eid');
  // // If there is no data table defined then use the base table.
  // $table_name = $storage->getDataTable() ?: $storage->getBaseTable();
  // $database = \Drupal::database();
  // $definition_manager = \Drupal::entityDefinitionUpdateManager();

  // // // Store the existing values.
  // // $status_values = $database->select($table_name)
  // //   ->fields($table_name, [$id_key, 'status_field'])
  // //   ->execute()
  // //   ->fetchAllKeyed();

  // // Clear out the values.
  // $database->update($table_name)
  //   ->fields(['field_ercore_pb_citation' => NULL])
  //   ->execute();

  // // Uninstall the field.
  // $field_storage_definition = $definition_manager->getFieldStorageDefinition('field_ercore_pb_citation', $bundle_of);
  // $definition_manager->uninstallFieldStorageDefinition($field_storage_definition);
}