public function TransactorBase::validateConfigurationForm in Transaction 8

Handles the validation for the transactor plugin settings form.

Parameters

array $form: The form array.

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

Overrides PluginFormInterface::validateConfigurationForm

File

src/TransactorBase.php, line 680

Class

TransactorBase

Provides a base class for transactor plugins.

Namespace

Drupal\transaction

Code

public function validateConfigurationForm(array &$form, FormStateInterface $form_state) {

  // Validate field mapping.
  $values = $form_state
    ->getValues();
  $field_names = [];
  foreach ($values as $key => $value) {
    if (empty($value) || !($field_info = $form_state
      ->getTemporaryValue('field_info_' . $key))) {

      // No value or not a field.
      continue;
    }

    // Validate new fields.
    if ($value === '_create') {
      $machine_name_field = $key . '_field_name';
      $field_name = $this->fieldPrefix . $values[$machine_name_field];
      $field_id = $field_info['entity_type'] . '.' . $field_name;

      // Check for existing fields.
      if (FieldStorageConfig::load($field_id) != NULL) {
        $form_state
          ->setErrorByName($machine_name_field, $this
          ->t('The machine-readable name is already in use. It must be unique.'));
      }
    }
    else {
      $machine_name_field = $key;
      $field_id = $field_info['entity_type'] . '.' . $value;
    }

    // Check for duplicates in new field names.
    if (isset($field_names[$field_id])) {
      $msg = $this
        ->t('A field name can not be used more than once in the same group.');
      $form_state
        ->setErrorByName($field_names[$field_id], $msg);
      $form_state
        ->setErrorByName($machine_name_field, $msg);
    }
    else {
      $field_names[$field_id] = $machine_name_field;
    }
  }
}