protected function _getLoadSelect($field, $value, $object) { $select = parent::_getLoadSelect($field, $value, $object); if (!is_null($this->childMode)) { $childTable = $this->getChildTable(); $select->join($childTable, "`{$childTable}`.`" . $this->getChildPrimary() . "` = `" . $this->getMainTable() . '`.`id`'); } return $select; }