protected function YamlFormEntityElementsValidator::validateRequired in YAML Form 8

Validate elements are required.

Return value

\Drupal\Core\StringTranslation\TranslatableMarkup|null If not valid an error message.

1 call to YamlFormEntityElementsValidator::validateRequired()

YamlFormEntityElementsValidator::validate in src/YamlFormEntityElementsValidator.php

Validate form elements.

File

src/YamlFormEntityElementsValidator.php, line 121

Class

YamlFormEntityElementsValidator

Defines a class to validate form elements.

Namespace

Drupal\yamlform

Code

protected function validateRequired() {
  return empty($this->elementsRaw) ? $this
    ->t('Elements are required') : NULL;
}