function dynamic_entity_reference_field_formatter_prepare_view in Dynamic Entity Reference 7

Implements hook_field_formatter_prepare_view().

File

./dynamic_entity_reference.field.inc, line 252

Contains field hooks.

Code

function dynamic_entity_reference_field_formatter_prepare_view($entity_type, $entities, $field, $instances, $langcode, &$entity_items, $displays) {
  if ($field['type'] == 'dynamic_entity_reference') {
    $target_ids = array();
    $revision_ids = array();
    foreach ($entity_items as $items) {

      // Collect every possible entity attached to any of the entities.
      foreach ($items as $item) {
        if (!empty($item['revision_id']) && !empty($item['target_type'])) {
          $revision_ids[$item['target_type']][] = $item['revision_id'];
        }
        elseif (!empty($item['target_id']) && !empty($item['target_type'])) {
          $target_ids[$item['target_type']][] = $item['target_id'];
        }
      }
    }
    $target_entities = array();
    if ($target_ids) {
      foreach ($target_ids as $target_type => $ids) {
        $target_entities_for_type = entity_load($target_type, $ids);
        foreach ($target_entities_for_type as $id => $target_entity) {
          $target_entities[$target_type][$id] = entity_metadata_wrapper($target_type, $target_entity);
        }
      }
    }
    if ($revision_ids) {

      // We need to load the revisions one by-one.
      foreach ($revision_ids as $target_type => $rev_ids) {
        foreach ($rev_ids as $revision_id) {
          $target_entity = entity_revision_load($target_type, $revision_id);
          $target_entity_wrapper = entity_metadata_wrapper($target_type, $target_entity);

          // Use the revision ID in the key.
          $identifier = $target_entity_wrapper
            ->getIdentifier() . ':' . $revision_id;
          $target_entities[$target_type][$identifier] = $target_entity_wrapper;
        }
      }
    }

    // Iterate through the fieldable entities again to attach the loaded data.
    $rekey = FALSE;
    foreach ($entity_items as $key => $items) {
      foreach ($items as $delta => $item) {

        // If we have a revision ID, the key uses it as well.
        $identifier = !empty($item['revision_id']) ? $item['target_id'] . ':' . $item['revision_id'] : $item['target_id'];
        if ($item['target_id'] !== 0) {
          if (!isset($item['target_type']) || !isset($target_entities[$item['target_type']][$identifier])) {

            // The entity no longer exists, so empty the item.
            unset($items[$delta]);
            $rekey = TRUE;
            continue;
          }
          $item['entity'] = $target_entities[$item['target_type']][$identifier];
          if (!entity_access('view', $item['target_type'], $item['entity']
            ->value())) {
            continue;
          }
        }
        else {

          // This is an "auto_create" item, just leave the entity in place.
        }

        // Mark item as accessible.
        $item['access'] = TRUE;
        $items[$delta] = $item;
      }

      // Rekey the items array if needed.
      if ($rekey) {
        $items = array_values(array_filter($items, function ($item) {
          return isset($item) && isset($item['entity']) && !empty($item['access']);
        }));
      }
      $entity_items[$key] = $items;
    }
  }
}