public function AddForm::validateForm in Custom Meta 2.0.x

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/AddForm.php, line 84

Class

AddForm

Provides the custom meta tag add form.

Namespace

Drupal\custom_meta\Form

Code

public function validateForm(array &$form, FormStateInterface $form_state) {
  if (!$form_state
    ->getValue('id') && array_key_exists($form_state
    ->getValue('name'), $this
    ->config('custom_meta.settings')
    ->get('tag'))) {
    $form_state
      ->setErrorByName('name', t('The custom meta tag %tag already exists.', [
      '%tag' => $form_state
        ->getValue('name'),
    ]));
  }
}