/** * Add a sub procedure. * * @param FilterBuilderSql $subProcedure The sub procedure to add. * * @return FilterBuilderSql */ public function addSubProcedure(FilterBuilderSql $subProcedure) { $this->procedures[] = $subProcedure->getProcedure(); $this->parameter = array_merge($this->parameter, $subProcedure->getParameters()); return $this; }