function linked_field_element_validate in Linked Field 8

Element validate function for Linked Field.

Parameters

array $element: The structured array whose children shall be rendered.

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

1 string reference to 'linked_field_element_validate'

linked_field_field_formatter_third_party_settings_form in ./linked_field.module

Implements hook_field_formatter_third_party_settings_form().

File

./linked_field.module, line 315

Main file of Linked Field module.

Code

function linked_field_element_validate($element, FormStateInterface $form_state) {
  $parents = array_slice($element['linked']['#parents'], 0, 3);
  $settings = NestedArray::getValue($form_state
    ->getValues(), $parents);
  if (!is_array($settings) || !isset($settings['third_party_settings']['linked_field'])) {
    return;
  }
  $linked_field =& $settings['third_party_settings']['linked_field'];

  // Remove empty Linked Field configuration form 3rd party settings.
  if (empty($linked_field['linked'])) {
    unset($settings['third_party_settings']['linked_field']);
  }
  else {

    // Remove empty attributes from configuration.
    foreach ($linked_field['advanced'] as $attribute => $value) {
      if (!mb_strlen(trim($value))) {
        unset($linked_field['advanced'][$attribute]);
      }
    }
  }

  // Set adjusted settings back into form state.
  $form_state
    ->setValue($parents, $settings);
}