function field_post_update_remove_handler_submit_setting in Drupal 8

Remove the stale 'handler_submit' setting for entity_reference fields.

File

core/modules/field/field.post_update.php, line 66

Post update functions for Field module.

Code

function field_post_update_remove_handler_submit_setting() {
  $config = \Drupal::configFactory();

  /** @var \Drupal\Core\Field\FieldTypePluginManager $field_type_manager */
  $field_type_manager = \Drupal::service('plugin.manager.field.field_type');

  // Iterate on all field configs.
  foreach ($config
    ->listAll('field.field.') as $field_id) {
    $field = $config
      ->getEditable($field_id);
    $class = $field_type_manager
      ->getPluginClass($field
      ->get('field_type'));

    // Deal only with entity reference fields and descendants.
    if ($class === EntityReferenceItem::class || is_subclass_of($class, EntityReferenceItem::class)) {
      if ($field
        ->get('settings.handler_submit')) {

        // Remove 'handler_settings' from settings.
        $field
          ->clear('settings.handler_submit')
          ->save();
      }
    }
  }
}