public static function WebformLikert::valueCallback in Webform 6.x

Same name and namespace in other branches

1. 8.5 src/Element/WebformLikert.php \Drupal\webform\Element\WebformLikert::valueCallback()

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/WebformLikert.php, line 288

Class

WebformLikert

Provides a webform element for a likert scale.

Namespace

Drupal\webform\Element

Code

public static function valueCallback(&$element, $input, FormStateInterface $form_state) {
  $default_value = [];
  foreach ($element['#questions'] as $question_key => $question_title) {
    $default_value[$question_key] = NULL;
  }
  if ($input === FALSE) {

    // FormBuilder can provide a default #default_value of an empty string.
    if (empty($element['#default_value'])) {
      $element['#default_value'] = [];
    }
    return $element['#default_value'] + $default_value;
  }
  $value = $default_value;
  foreach ($value as $allowed_key => $default) {
    if (isset($input[$allowed_key]) && is_scalar($input[$allowed_key])) {
      $value[$allowed_key] = (string) $input[$allowed_key];
    }
  }
  return $value;
}