public function ExportAllForm::validateForm in Bibliography & Citation 8

Same name and namespace in other branches

1. 2.0.x modules/bibcite_export/src/Form/ExportAllForm.php \Drupal\bibcite_export\Form\ExportAllForm::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

modules/bibcite_export/src/Form/ExportAllForm.php, line 160

Class

ExportAllForm

Export all reference data to any available export format.

Namespace

Drupal\bibcite_export\Form

Code

public function validateForm(array &$form, FormStateInterface $form_state) {
  $format = $this->formatManager
    ->hasDefinition($form_state
    ->getValue('format'));
  if (!isset($format)) {
    $form_state
      ->setErrorByName('format', $this
      ->t('Trying export to non-existing format.'));
  }
  $storage = \Drupal::entityTypeManager()
    ->getStorage('bibcite_reference');
  $total = $storage
    ->getQuery()
    ->count()
    ->execute();
  if (!$total) {
    $form_state
      ->setError($form, $this
      ->t('There is no data to export.'));
  }
}