function paragraphs_field_update in Paragraphs 7

Implements hook_field_update().

Care about removed paragraph items.

File

./paragraphs.module, line 750

Paragraphs hooks and common functions.

Code

function paragraphs_field_update($entity_type, $entity, $field, $instance, $langcode, &$items) {

  // Prevent workbench moderation from deleting paragraphs on node_save() during
  // workbench_moderation_store(), when $host_entity->revision == 0.
  if (!empty($entity->workbench_moderation['updating_live_revision'])) {
    return;
  }

  // Prevent State Flow Entity from deleting paragraphs on node_save()
  // when adding new paragraphs item and a published revision of the node exist.
  // @see state_flow_entity_exit().
  if (!empty($entity->state_flow) && isset($entity->revision) && $entity->revision === FALSE) {
    return;
  }
  $items_original = !empty($entity->original->{$field['field_name']}[$langcode]) ? $entity->original->{$field['field_name']}[$langcode] : array();
  $original_by_id = array_flip(paragraphs_field_item_to_ids($items_original));
  foreach ($items as $item) {
    unset($original_by_id[$item['value']]);
  }

  // If there are removed items, care about deleting the item entities.
  if ($original_by_id) {
    $ids = array_flip($original_by_id);

    // If we are creating a new revision, the old-items should be kept but get
    // marked as archived now.
    if (!empty($entity->revision)) {
      db_update('paragraphs_item')
        ->fields(array(
        'archived' => 1,
      ))
        ->condition('item_id', $ids, 'IN')
        ->execute();
    }
    else {

      // Delete unused paragraph items now.
      foreach (paragraphs_item_load_multiple($ids) as $item) {
        $item
          ->setHostEntity($entity_type, $entity, $langcode, FALSE);
        $item
          ->deleteRevision(TRUE);
      }
    }
  }
}