function paragraphs_field_presave in Paragraphs 7

Implements hook_field_presave().

Support saving paragraph items in

$item['entity'];

. This may be used to seamlessly create paragraph items during host-entity creation or to save changes to the host entity and its collections at once.

File

./paragraphs.module, line 690

Paragraphs hooks and common functions.

Code

function paragraphs_field_presave($host_entity_type, $host_entity, $field, $instance, $langcode, &$items) {
  $top_host = $host_entity;
  while (method_exists($top_host, 'hostEntity')) {
    $top_host = $top_host
      ->hostEntity();
  }

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

    // In case the entity has been changed / created, save it and set the id.
    // If the host entity creates a new revision, save new item-revisions as
    // well.
    $entity = FALSE;
    if (isset($item['entity'])) {
      $entity = paragraphs_field_get_entity($item);
    }
    elseif (isset($item['revision_id'])) {
      $entity = paragraphs_item_revision_load($item['revision_id']);
    }
    if ($entity) {
      $entity
        ->setHostEntity($host_entity_type, $host_entity, $langcode, FALSE);

      // If the host entity supports revisions and is saved as new revision, do
      // the same for the item.
      if (!empty($host_entity->revision)) {
        $entity->revision = TRUE;
        $is_default = entity_revision_is_default($host_entity_type, $host_entity);

        // If an entity type does not support saving non-default entities,
        // assume it will be saved as default.
        if (!isset($is_default) || $is_default) {
          $entity->default_revision = TRUE;
          $entity->archived = FALSE;
        }
      }
      if (isset($entity->removed) && $entity->removed) {
        unset($items[$key]);
      }
      else {
        $entity
          ->save(TRUE);
        $item = array(
          'value' => $entity->item_id,
          'revision_id' => $entity->revision_id,
        );
      }
    }
  }
}