function getSubRelData() { if (!isset($this->subRel) || !isset($this->subRelJoinColumns)) { // return empty result. return array(); } $query = new SearchQuery($this->dbConn, $this->relation); $query->setSubRel($this->subRel)->setSubRelJoinColumns($this->subRelJoinColumns); $sql = $query->getSubRelQuery(); $this->logString .= 'subrel:' . $sql; return $this->dbConn->Execute($sql)->fields; }