public function ParagraphsSliderPlugin::validateConfigurationForm in Paragraphs Collection 8

Form validation handler.

Parameters

array $form: An associative array containing the structure of the plugin form as built by static::buildConfigurationForm().

\Drupal\Core\Form\FormStateInterface $form_state: The current state of the form. Calling code should pass on a subform state created through \Drupal\Core\Form\SubformState::createForSubform().

Overrides ParagraphsBehaviorBase::validateConfigurationForm

File

modules/paragraphs_collection_demo/src/Plugin/paragraphs/Behavior/ParagraphsSliderPlugin.php, line 158

Class

ParagraphsSliderPlugin

Provides Slider plugin.

Namespace

Drupal\paragraphs_collection_demo\Plugin\paragraphs\Behavior

Code

public function validateConfigurationForm(array &$form, FormStateInterface $form_state) {
  if (!$form_state
    ->getValue('field_name')) {
    $form_state
      ->setErrorByName('message', $this
      ->t('The Slider plugin cannot be enabled if there is no field to be mapped.'));
  }
}