public function ParagraphSelection::buildConfigurationForm

File

paragraphs/src/Plugin/EntityReferenceSelection/ParagraphSelection.php, line 36

Class

ParagraphSelection

Default plugin implementation of the Entity Reference Selection plugin.

Namespace

Code

public function buildConfigurationForm(array $form, FormStateInterface $form_state) {
  $entity_type_id = $this->configuration['target_type'];
  $bundles = $this->entityTypeBundleInfo
    ->getBundleInfo($entity_type_id);
  $bundle_options = array();
  $bundle_options_simple = array();

  // Default weight for new items.
  $weight = count($bundles) + 1;
  foreach ($bundles as $bundle_name => $bundle_info) {
    $bundle_options_simple[$bundle_name] = $bundle_info['label'];
    $bundle_options[$bundle_name] = array(
      'label' => $bundle_info['label'],
      'enabled' => $this->configuration['target_bundles_drag_drop'][$bundle_name]['enabled'] ?? FALSE,
      'weight' => $this->configuration['target_bundles_drag_drop'][$bundle_name]['weight'] ?? $weight,
    );
    $weight++;
  }

  // Do negate the selection.
  $form['negate'] = [
    '#type' => 'radios',
    '#options' => [
      1 => $this
        ->t('Exclude the selected below'),
      0 => $this
        ->t('Include the selected below'),
    ],
    '#title' => $this
      ->t('Which Paragraph types should be allowed?'),
    '#default_value' => $this->configuration['negate'],
  ];

  // Kept for compatibility with other entity reference widgets.
  $form['target_bundles'] = array(
    '#type' => 'checkboxes',
    '#options' => $bundle_options_simple,
    '#default_value' => $this->configuration['target_bundles'] ?? [],
    '#access' => FALSE,
  );
  if ($bundle_options) {
    $form['target_bundles_drag_drop'] = [
      '#element_validate' => [
        [
          __CLASS__,
          'targetTypeValidate',
        ],
      ],
      '#type' => 'table',
      '#header' => [
        $this
          ->t('Type'),
        $this
          ->t('Weight'),
      ],
      '#attributes' => [
        'id' => 'bundles',
      ],
      '#prefix' => '<h5>' . $this
        ->t('Paragraph types') . '</h5>',
      '#suffix' => '<div class="description">' . $this
        ->t('Selection of Paragraph types for this field. Select none to allow all Paragraph types.') . '</div>',
    ];
    $form['target_bundles_drag_drop']['#tabledrag'][] = [
      'action' => 'order',
      'relationship' => 'sibling',
      'group' => 'bundle-weight',
    ];
  }
  uasort($bundle_options, 'Drupal\\Component\\Utility\\SortArray::sortByWeightElement');
  $weight_delta = $weight;

  // Default weight for new items.
  $weight = count($bundles) + 1;
  foreach ($bundle_options as $bundle_name => $bundle_info) {
    $form['target_bundles_drag_drop'][$bundle_name] = array(
      '#attributes' => array(
        'class' => array(
          'draggable',
        ),
      ),
    );
    $form['target_bundles_drag_drop'][$bundle_name]['enabled'] = array(
      '#type' => 'checkbox',
      '#title' => $bundle_info['label'],
      '#title_display' => 'after',
      '#default_value' => $bundle_info['enabled'],
    );
    $form['target_bundles_drag_drop'][$bundle_name]['weight'] = array(
      '#type' => 'weight',
      '#default_value' => (int) $bundle_info['weight'],
      '#delta' => $weight_delta,
      '#title' => $this
        ->t('Weight for type @type', array(
        '@type' => $bundle_info['label'],
      )),
      '#title_display' => 'invisible',
      '#attributes' => array(
        'class' => array(
          'bundle-weight',
          'bundle-weight-' . $bundle_name,
        ),
      ),
    );
    $weight++;
  }
  if (empty($bundle_options)) {
    $form['allowed_bundles_explain'] = [
      '#type' => 'markup',
      '#markup' => $this
        ->t('You did not add any Paragraph types yet, click <a href=":here">here</a> to add one.', [
        ':here' => Url::fromRoute('paragraphs.type_add')
          ->toString(),
      ]),
    ];
  }
  return $form;
}