/**
* {@inheritdoc}
*/
protected function flagViolations(EntityConstraintViolationListInterface $violations, array $form, FormStateInterface $form_state)
{
// Manually flag violations of fields not handled by the form display. This
// is necessary as entity form displays only flag violations for fields
// contained in the display.
$field_names = array('label', 'machine_name');
foreach ($violations->getByFields($field_names) as $violation) {
list($field_name) = explode('.', $violation->getPropertyPath(), 2);
$form_state->setErrorByName($field_name, $violation->getMessage());
}
parent::flagViolations($violations, $form, $form_state);
}
/**
* {@inheritdoc}
*/
protected function flagViolations(EntityConstraintViolationListInterface $violations, array $form, FormStateInterface $form_state)
{
// Manually flag violations of fields not handled by the form display.
foreach ($violations->getByField('created') as $violation) {
$form_state->setErrorByName('date', $violation->getMessage());
}
foreach ($violations->getByField('name') as $violation) {
$form_state->setErrorByName('name', $violation->getMessage());
}
parent::flagViolations($violations, $form, $form_state);
}
/**
* {@inheritdoc}
*/
public function flagWidgetsErrorsFromViolations(EntityConstraintViolationListInterface $violations, array &$form, FormStateInterface $form_state)
{
$entity = $violations->getEntity();
foreach ($violations->getFieldNames() as $field_name) {
// Only show violations for fields that actually appear in the form, and
// let the widget assign the violations to the correct form elements.
if ($widget = $this->getRenderer($field_name)) {
$field_violations = $this->movePropertyPathViolationsRelativeToField($field_name, $violations->getByField($field_name));
$widget->flagErrors($entity->get($field_name), $field_violations, $form, $form_state);
}
}
}
/**
* Flags violations for the current form.
*
* If the entity form customly adds some fields to the form (i.e. without
* using the form display), it needs to add its fields to array returned by
* getEditedFieldNames() and overwrite this method in order to show any
* violations for those fields; e.g.:
* @code
* foreach ($violations->getByField('name') as $violation) {
* $form_state->setErrorByName('name', $violation->getMessage());
* }
* parent::flagViolations($violations, $form, $form_state);
* @endcode
*
* @param \Drupal\Core\Entity\EntityConstraintViolationListInterface $violations
* The violations to flag.
* @param array $form
* A nested array of form elements comprising the form.
* @param \Drupal\Core\Form\FormStateInterface $form_state
* The current state of the form.
*/
protected function flagViolations(EntityConstraintViolationListInterface $violations, array $form, FormStateInterface $form_state)
{
// Flag entity level violations.
foreach ($violations->getEntityViolations() as $violation) {
/** @var \Symfony\Component\Validator\ConstraintViolationInterface $violation */
$form_state->setErrorByName('', $violation->getMessage());
}
// Let the form display flag violations of its fields.
$this->getFormDisplay($form_state)->flagWidgetsErrorsFromViolations($violations, $form, $form_state);
}