public static function OptionsWidgetBase::validateElement in Drupal 8
Same name and namespace in other branches
- 9 core/lib/Drupal/Core/Field/Plugin/Field/FieldWidget/OptionsWidgetBase.php \Drupal\Core\Field\Plugin\Field\FieldWidget\OptionsWidgetBase::validateElement()
Form validation handler for widget elements.
Parameters
array $element: The form element.
\Drupal\Core\Form\FormStateInterface $form_state: The form state.
1 method overrides OptionsWidgetBase::validateElement()
- ModerationStateWidget::validateElement in core/
modules/ content_moderation/ src/ Plugin/ Field/ FieldWidget/ ModerationStateWidget.php - Form validation handler for widget elements.
File
- core/
lib/ Drupal/ Core/ Field/ Plugin/ Field/ FieldWidget/ OptionsWidgetBase.php, line 69
Class
- OptionsWidgetBase
- Base class for the 'options_*' widgets.
Namespace
Drupal\Core\Field\Plugin\Field\FieldWidgetCode
public static function validateElement(array $element, FormStateInterface $form_state) {
if ($element['#required'] && $element['#value'] == '_none') {
$form_state
->setError($element, t('@name field is required.', [
'@name' => $element['#title'],
]));
}
// Massage submitted form values.
// Drupal\Core\Field\WidgetBase::submit() expects values as
// an array of values keyed by delta first, then by column, while our
// widgets return the opposite.
if (is_array($element['#value'])) {
$values = array_values($element['#value']);
}
else {
$values = [
$element['#value'],
];
}
// Filter out the 'none' option. Use a strict comparison, because
// 0 == 'any string'.
$index = array_search('_none', $values, TRUE);
if ($index !== FALSE) {
unset($values[$index]);
}
// Transpose selections from field => delta to delta => field.
$items = [];
foreach ($values as $value) {
$items[] = [
$element['#key_column'] => $value,
];
}
$form_state
->setValueForElement($element, $items);
}