public function RssFields::validate in Drupal 8

Same name and namespace in other branches

1. 9 core/modules/views/src/Plugin/views/row/RssFields.php \Drupal\views\Plugin\views\row\RssFields::validate()
2. 10 core/modules/views/src/Plugin/views/row/RssFields.php \Drupal\views\Plugin\views\row\RssFields::validate()

Validate that the plugin is correct and can be saved.

Return value

An array of error strings to tell the user what is wrong with this plugin.

Overrides PluginBase::validate

File

core/modules/views/src/Plugin/views/row/RssFields.php, line 108

Class

RssFields

Renders an RSS item based on fields.

Namespace

Drupal\views\Plugin\views\row

Code

public function validate() {
  $errors = parent::validate();
  $required_options = [
    'title_field',
    'link_field',
    'description_field',
    'creator_field',
    'date_field',
  ];
  foreach ($required_options as $required_option) {
    if (empty($this->options[$required_option])) {
      $errors[] = $this
        ->t('Row style plugin requires specifying which views fields to use for RSS item.');
      break;
    }
  }

  // Once more for guid.
  if (empty($this->options['guid_field_options']['guid_field'])) {
    $errors[] = $this
      ->t('Row style plugin requires specifying which views fields to use for RSS item.');
  }
  return $errors;
}