public function ParagraphsWidget::errorElement in Paragraphs 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 WidgetBase::errorElement

File

src/Plugin/Field/FieldWidget/ParagraphsWidget.php, line 2189

Class

ParagraphsWidget

Plugin implementation of the 'entity_reference_revisions paragraphs' widget.

Namespace

Drupal\paragraphs\Plugin\Field\FieldWidget

Code

public function errorElement(array $element, ConstraintViolationInterface $error, array $form, FormStateInterface $form_state) {

  // Validation errors might be a about a specific (behavior) form element
  // attempt to find a matching element.
  if (!empty($error->arrayPropertyPath) && ($sub_element = NestedArray::getValue($element, $error->arrayPropertyPath))) {
    return $sub_element;
  }
  return $element;
}