function forum_update_10102

Add a primary key to forum_index.

File

core/modules/forum/forum.install, line 233

Code

function forum_update_10102(&$sandbox = NULL) {
  $connection = \Drupal::database();
  if ($connection->schema()
    ->tableExists('forum_index')) {
    // Data in this table could have duplicates. The data can be re-constructed
    // from other data in the site. To avoid duplicate key errors we delete any
    // rows that are duplicates and then recreate them in a post-update hook.
    // @see \forum_post_update_recreate_forum_index_rows().
    $connection->schema()
      ->addPrimaryKey('forum_index', [
      'nid',
      'tid',
    ]);
    return \t('Added primary key to the forum_index table.');
  }
  return \t('Index already exists');
}