public function EntityqueueDragtableWidget::errorElement in Entityqueue 8

Assigns a field-level validation error to the right widget sub-element.

Depending on the widget's internal structure, a field-level validation error needs to be flagged on the right sub-element.

Parameters

array $element: An array containing the form element for the widget, as generated by formElement().

\Symfony\Component\Validator\ConstraintViolationInterface $violation: A constraint violation reported during the validation phase.

array $form: The form structure where field elements are attached to. This might be a full form structure, or a sub-element of a larger form.

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

Return value

array|bool The element on which the error should be flagged, or FALSE to completely ignore the violation (use with care!).

Overrides EntityReferenceAutocompleteWidget::errorElement

File

src/Plugin/Field/FieldWidget/EntityqueueDragtableWidget.php, line 164

Class

EntityqueueDragtableWidget

Plugin implementation of the 'entityqueue_dragtable' widget.

Namespace

Drupal\entityqueue\Plugin\Field\FieldWidget

Code

public function errorElement(array $element, ConstraintViolationInterface $violation, array $form, FormStateInterface $form_state) {
  if ($button = $form_state
    ->getTriggeringElement()) {

    // If an item is being removed, do not check for reference validity.
    if (end($button['#parents']) === '_remove' && $violation
      ->getConstraint() instanceof ValidReferenceConstraint) {
      return FALSE;
    }
  }
  return parent::errorElement($element, $violation, $form, $form_state);
}