public function MultifieldEntityController::load in Multifield 7

Same name and namespace in other branches

1. 7.2 MultifieldEntityController.php \MultifieldEntityController::load()

Implements DrupalEntityControllerInterface::load().

Overrides DrupalDefaultEntityController::load

File

./MultifieldEntityController.php, line 4

Class

MultifieldEntityController

Code

public function load($ids = array(), $conditions = array()) {
  if (!empty($conditions)) {
    throw new InvalidArgumentException('MultifieldEntityController does not support entity_load() using conditions.');
  }
  $entities = array();

  // Create a new variable which is either a prepared version of the $ids
  // array for later comparison with the entity cache, or FALSE if no $ids
  // were passed. The $ids array is reduced as items are loaded from cache,
  // and we need to know if it's empty for this reason to avoid querying the
  // database when all requested entities are loaded from cache.
  $passed_ids = !empty($ids) ? array_flip($ids) : FALSE;

  // Try to load entities from the static cache, if the entity type supports
  // static caching.
  if ($this->cache) {
    $entities += $this
      ->cacheGet($ids, $conditions);

    // If any entities were loaded, remove them from the ids still to load.
    if ($passed_ids) {
      $ids = array_keys(array_diff_key($passed_ids, $entities));
    }
  }

  // Load any remaining entities from the database. This is the case if $ids
  // is set to FALSE (so we load all entities), if there are any ids left to
  // load, if loading a revision, or if $conditions was passed without $ids.
  if ($ids === FALSE || $ids) {
    $entities += $this
      ->queryLoad($ids);
  }
  return $entities;
}