function WorkflowTransitionAddForm::validateForm

Overrides FormBase::validateForm

File

core/modules/workflows/src/Form/WorkflowTransitionAddForm.php, line 150

Class

WorkflowTransitionAddForm

Entity form variant for adding workflow transitions.

Namespace

Code

public function validateForm(array &$form, FormStateInterface $form_state) {
  /** @var \Drupal\workflows\WorkflowInterface $workflow */
  $workflow = $this->getEntity();
  $workflow_type = $workflow->getTypePlugin();
  $values = $form_state->getValues();
  foreach (array_filter($values['from']) as $from_state_id) {
    if ($workflow->getTypePlugin()
      ->hasTransitionFromStateToState($from_state_id, $values['to'])) {
      $form_state->setErrorByName('from][' . $from_state_id, $this->t('The transition from %from to %to already exists.', [
        '%from' => $workflow->getTypePlugin()
          ->getState($from_state_id)
          ->label(),
        '%to' => $workflow->getTypePlugin()
          ->getState($values['to'])
          ->label(),
      ]));
    }
  }
  if ($workflow_type->hasFormClass(TransitionInterface::PLUGIN_FORM_KEY)) {
    $subform_state = SubformState::createForSubform($form['type_settings'], $form, $form_state);
    $this->pluginFormFactory
      ->createInstance($workflow_type, TransitionInterface::PLUGIN_FORM_KEY)
      ->validateConfigurationForm($form['type_settings'], $subform_state);
  }
}