Issue #3108416 by catch, amateescu, alexpott, xjm: Remove workspace_update_8803()

      }

    }

    // If system.module is in the list then only show a specific message for

    // Drupal core, otherwise show a more generic message for each module.

    if (isset($module_list['system'])) {

    // If system or workspaces is in the list then only show a specific message

    // for Drupal core.

    if (isset($module_list['system']) || isset($module_list['workspaces'])) {

      $requirements['system_update_last_removed'] = [

        'title' => t('The version of Drupal you are trying to update from is too old'),

        'description' => t('Updating to Drupal @current_major is only supported from Drupal version @required_min_version or higher. If you are trying to update from an older version, first update to the latest version of Drupal @previous_major. (<a href=":url">Drupal 9 upgrade guide</a>)', [

          '@current_major' => 9,

          '@required_min_version' => '8.8.0',

          // Workspaces is special cased due to updates being removed after

          // 8.8.0.

          '@required_min_version' => isset($module_list['workspaces']) ? '8.8.2' : '8.8.0',

          '@previous_major' => 8,

          ':url' => 'https://www.drupal.org/docs/9/how-to-prepare-your-drupal-7-or-8-site-for-drupal-9/upgrading-a-drupal-8-site-to-drupal-9',

        ]),

 * Contains install, update and uninstall functions for the Workspaces module.

 */

use Drupal\Core\Entity\ContentEntityNullStorage;

use Drupal\Core\Entity\EntityTypeInterface;

use Drupal\workspaces\Entity\Workspace;

 * Implements hook_update_last_removed().

 */

function workspaces_update_last_removed() {

  return 8802;

}

/**

 * Remove the Workspace Association entity storage if necessary.

 */

function workspaces_update_8803() {

  $entity_definition_update_manager = \Drupal::entityDefinitionUpdateManager();

  $entity_type = $entity_definition_update_manager->getEntityType('workspace_association');

  // We can't migrate the workspace association data if the entity type is not

  // using its default storage.

  // @see workspaces_post_update_move_association_data()

  if ($entity_type && $entity_type->getHandlerClasses()['storage'] === 'Drupal\workspaces\WorkspaceAssociationStorage') {

    \Drupal::state()->set('workspaces_update_8803.tables', [

      'base_table' => $entity_type->getBaseTable(),

      'revision_table' => $entity_type->getRevisionTable(),

    ]);

    $entity_type->setStorageClass(ContentEntityNullStorage::class);

    $entity_definition_update_manager->uninstallEntityType($entity_type);

  }

  return 8803;

}