public function ConditionalFieldForm::validateForm in Conditional Fields 4.x

Same name and namespace in other branches

1. 8 src/Form/ConditionalFieldForm.php \Drupal\conditional_fields\Form\ConditionalFieldForm::validateForm()

Form validation handler.

Parameters

array $form: An associative array containing the structure of the form.

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

Overrides FormBase::validateForm

File

src/Form/ConditionalFieldForm.php, line 164

Class

ConditionalFieldForm

A form with a list of conditional fields for an entity type.

Namespace

Drupal\conditional_fields\Form

Code

public function validateForm(array &$form, FormStateInterface $form_state) {
  $table = $form_state
    ->getValue('table');
  if (empty($table['add_new_dependency']) || !is_array($table['add_new_dependency'])) {
    parent::validateForm($form, $form_state);
  }
  $conditional_values = $table['add_new_dependency'];
  if (array_key_exists('dependee', $conditional_values) && array_key_exists('dependent', $conditional_values)) {
    $dependent = $conditional_values['dependent'];
    $state = isset($conditional_values['state']) ? $conditional_values['state'] : NULL;
    $instances = $this->entityFieldManager
      ->getFieldDefinitions($form_state
      ->getValue('entity_type'), $form_state
      ->getValue('bundle'));
    foreach ($dependent as $field) {
      if ($conditional_values['dependee'] == $field) {
        $form_state
          ->setErrorByName('dependee', $this
          ->t('You should select two different fields.'));
        $form_state
          ->setErrorByName('dependent', $this
          ->t('You should select two different fields.'));
      }
      if (!empty($instances[$field]) && $this
        ->requiredFieldIsNotVisible($instances[$field], $state)) {
        $field_instance = $instances[$field];
        $form_state
          ->setErrorByName('state', $this
          ->t('Field %field is required and can not have state %state.', [
          '%field' => $field_instance
            ->getLabel() . ' (' . $field_instance
            ->getName() . ')',
          '%state' => $this->list
            ->conditionalFieldsStates()[$state],
        ]));
      }
    }
  }
  parent::validateForm($form, $form_state);
}