public function DisableMessagesSettingsForm::validateForm in Disable Messages 8

Same name and namespace in other branches

1. 2.x src/Form/DisableMessagesSettingsForm.php \Drupal\disable_messages\Form\DisableMessagesSettingsForm::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/DisableMessagesSettingsForm.php, line 141

Class

DisableMessagesSettingsForm

Provides a form for administering disable messages.

Namespace

Drupal\disable_messages\Form

Code

public function validateForm(array &$form, FormStateInterface $form_state) {
  global $_disable_messages_error, $_disable_messages_error_no;
  $patterns = explode("\n", $form_state
    ->getValues()['disable_messages_ignore_patterns']);

  // Override drupal error handler to handle the preg error here.
  set_error_handler('_disable_messages_error_handler');
  foreach ($patterns as $pattern) {
    $pattern = preg_replace([
      '/^\\s*/',
      '/\\s*$/',
    ], '', $pattern);
    try {
      preg_match('/' . $pattern . '/', "This is a test string");
    } catch (\Exception $e) {
    }
    if ($_disable_messages_error) {
      $form_state
        ->setErrorByName('disable_messages_ignore_patterns', $this
        ->t('"@pattern" is not a valid regular expression. Preg error (@error_no) - @error', [
        '@pattern' => $pattern,
        '@error_no' => $_disable_messages_error_no,
        '@error' => $_disable_messages_error,
      ]));
      restore_error_handler();
      return;
    }
  }
}