name : GetsQuerySelectKeys.php <?php namespace Statamic\Tags\Concerns; trait GetsQuerySelectKeys { protected function getQuerySelectKeys($item) { $selected = $this->params->explode('select'); if (! $selected || $selected === ['*']) { return null; } if (false !== ($shallow = array_search('@shallow', $selected))) { unset($selected[$shallow]); $selected = array_merge($selected, $item->shallowAugmentedArrayKeys()); } return $selected; } }