function social_follow_landing_page_field_widget_entity_reference_paragraphs_form_alter in Open Social 10.2.x

Same name and namespace in other branches

1. 10.3.x modules/social_features/social_follow_taxonomy/modules/social_follow_landing_page/social_follow_landing_page.module \social_follow_landing_page_field_widget_entity_reference_paragraphs_form_alter()
2. 10.0.x modules/social_features/social_follow_taxonomy/modules/social_follow_landing_page/social_follow_landing_page.module \social_follow_landing_page_field_widget_entity_reference_paragraphs_form_alter()
3. 10.1.x modules/social_features/social_follow_taxonomy/modules/social_follow_landing_page/social_follow_landing_page.module \social_follow_landing_page_field_widget_entity_reference_paragraphs_form_alter()

Implements hook_field_widget_WIDGET_TYPE_form_alter().

File

modules/social_features/social_follow_taxonomy/modules/social_follow_landing_page/social_follow_landing_page.module, line 99

Contains social_follow_landing_page.module.

Code

function social_follow_landing_page_field_widget_entity_reference_paragraphs_form_alter(&$element, FormStateInterface $form_state, $context) {
  $subform = FALSE;
  if (isset($element['subform']['field_tag'])) {
    $subform =& $element['subform'];
  }
  elseif (isset($element['subform']['field_section_paragraph']['widget'])) {
    $child_keys = Element::children($element['subform']['field_section_paragraph']['widget']);
    $child_key = reset($child_keys);
    if (isset($element['subform']['field_section_paragraph']['widget'][$child_key]['subform'])) {
      $subform =& $element['subform']['field_section_paragraph']['widget'][$child_key]['subform'];
    }
  }
  if ($subform) {

    /** @var \Drupal\social_tagging\SocialTaggingService $tag_service */
    $tag_service = Drupal::getContainer()
      ->get('social_tagging.tag_service');

    // Check if tagging is turned on/off.
    if (!$tag_service
      ->active() || !$tag_service
      ->hasContent()) {

      // Remove the field from the form.
      $subform['field_tag']['#access'] = FALSE;
      return;
    }

    // Update view for landing pages.
    if ($element['#paragraph_type'] === 'section') {
      $subform['field_tag']['widget']['#title'] = t('Select a tag');
      $subform['field_tag']['widget']['#multiple'] = FALSE;
      $subform['field_tag']['widget']['#description'] = t('Selected tag will be displayed in a block with the options to follow this tag and see content relates to this tag.');

      // Remove parent terms if they not allowed to follow.
      if ($tag_service
        ->allowSplit() && !$tag_service
        ->useCategoryParent()) {
        $tag_options =& $subform['field_tag']['widget']['#options'];
        foreach ($tag_options as $tid => $tag_option) {
          if ($tid === '_none') {
            continue;
          }
          $terms = \Drupal::entityTypeManager()
            ->getStorage('taxonomy_term')
            ->loadParents($tid);
          if (empty($terms)) {
            unset($tag_options[$tid]);
          }
        }
      }
      return;
    }

    // Add an extra vertical tab.
    $subform['tagging'] = [
      '#type' => 'fieldset',
      '#title' => t('Tag content'),
      '#description' => '',
      '#group' => 'group_tagging',
      '#open' => TRUE,
      '#weight' => 50,
    ];
    if ($tag_service
      ->allowSplit()) {

      // Get the default value.
      $default_value = [];
      $form_object = $form_state
        ->getFormObject();
      if ($form_object instanceof ContentEntityFormInterface) {

        /** @var \Drupal\Core\Entity\EntityBase $form_entity */
        $form_entity = $form_object
          ->getEntity();

        // If the node exists, we need to get the default value.
        if (($form_entity instanceof BlockContentInterface || $form_entity instanceof ContentEntityInterface) && $form_entity
          ->id() !== NULL) {
          $parents = $subform['#parents'];
          if (!empty($parents[0]) && $form_entity
            ->hasField($parents[0]) && !$form_entity
            ->get($parents[0])
            ->isEmpty()) {
            $parent_value = $form_entity
              ->get($parents[0])
              ->getValue();
            if (isset($parents[1])) {
              $tag_value = NULL;
              if (isset($parent_value[$parents[1]]['entity'])) {

                /** @var \Drupal\paragraphs\ParagraphInterface $paragraph_entity */
                $paragraph_entity = $parent_value[$parents[1]]['entity'];
                $tag_value = $paragraph_entity
                  ->get('field_section_paragraph')->entity
                  ->get('field_tag')
                  ->getValue();
              }
              elseif (isset($parent_value[$parents[1]]['target_id'])) {

                /** @var \Drupal\paragraphs\ParagraphInterface $paragraph_entity */
                $paragraph_entity = \Drupal::entityTypeManager()
                  ->getStorage('paragraph')
                  ->load($parent_value[$parents[1]]['target_id']);
                $tag_value = $paragraph_entity
                  ->get('field_tag')
                  ->getValue();
              }
              if ($tag_value) {
                foreach ($tag_value as $key => $value) {
                  if (isset($value['target_id'])) {
                    $default_value[] = $value['target_id'];
                  }
                }
              }
            }
          }
        }
      }
      if (empty($default_value) && isset($context['items'])) {
        $items_value = $context['items']
          ->getValue();
        if (isset($items_value[0]['entity']) && $items_value[0]['entity'] instanceof ParagraphInterface) {
          $paragraph_entity = $items_value[0]['entity'];
          if ($paragraph_entity
            ->hasField('field_tag') && !$paragraph_entity
            ->get('field_tag')
            ->isEmpty()) {
            $tag_value = $paragraph_entity
              ->get('field_tag')
              ->getValue();
            if ($tag_value) {
              foreach ($tag_value as $key => $value) {
                if (isset($value['target_id'])) {
                  $default_value[] = $value['target_id'];
                }
              }
            }
          }
        }
      }

      // Get the main categories.
      $categories = $tag_service
        ->getCategories();

      // Loop over the categories.
      foreach ($categories as $tid => $category) {
        $field_name = 'social_tagging_' . social_tagging_to_machine_name($category);

        // Get the corresponding items.
        $options = $tag_service
          ->getChildren($tid);

        // Only add a field if the category has any options.
        if (count($options) > 0) {

          // Add a field.
          $subform['tagging'][$field_name] = [
            '#type' => 'select2',
            '#title' => $category,
            '#multiple' => TRUE,
            '#default_value' => $default_value,
            '#options' => $options,
            '#group' => 'group_tagging',
          ];
        }
      }

      // Deny access the social_tagging field altogether.
      $subform['field_tag']['#access'] = FALSE;

      // Add a custom submithandler.
      $element['#element_validate'][] = '_social_follow_landing_page_entity_validate';
    }
    else {
      $options = [];
      foreach ($tag_service
        ->getCategories() as $key => $value) {
        $options[$value] = $tag_service
          ->getChildren($key);
      }
      $subform['field_tag']['widget']['#options'] = $options;
    }
  }
}