public function ParagraphsBackgroundPlugin::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/ParagraphsBackgroundPlugin.php, line 65

Class

ParagraphsBackgroundPlugin

Provides a background image feature plugin.

Namespace

Drupal\paragraphs_collection_demo\Plugin\paragraphs\Behavior

Code

public function validateConfigurationForm(array &$form, FormStateInterface $form_state) {
  if (!$form_state
    ->getValue('background_image_field')) {
    $form_state
      ->setErrorByName('message', $this
      ->t('The Background plugin cannot be enabled without an image field.'));
  }
}