public static function YamlFormOptions::valueCallback in YAML Form 8

Determines how user input is mapped to an element's #value property.

Parameters

array $element: An associative array containing the properties of the element.

mixed $input: The incoming input to populate the form element. If this is FALSE, the element's default value should be returned.

\Drupal\Core\Form\FormStateInterface $form_state: The current state of the form.

Return value

mixed The value to assign to the element.

Overrides FormElement::valueCallback

File

src/Element/YamlFormOptions.php, line 42

Class

YamlFormOptions

Provides a form element to assist in creation of options.

Namespace

Drupal\yamlform\Element

Code

public static function valueCallback(&$element, $input, FormStateInterface $form_state) {
  if ($input === FALSE) {
    if (!isset($element['#default_value'])) {
      return [];
    }
    $options = is_string($element['#default_value']) ? Yaml::decode($element['#default_value']) : $element['#default_value'];
    if (self::hasOptGroup($options)) {
      return $options;
    }
    return self::convertOptionsToValues($options);
  }
  elseif (is_array($input) && isset($input['options'])) {
    return is_string($input['options']) ? Yaml::decode($input['options']) : $input['options'];
  }
  else {
    return NULL;
  }
}